new revised ri 021018 draft cml blm · 2020. 10. 14. · submitted by: alcoa inc. city of east...

Submitted by:

ALCOA INC.

CITY OF EAST ST. LOUIS

Prepared by:

TETRA TECH, INC.

7800 Shoal Creek Blvd. Suite 253E

Austin, Texas 78757 (512) 338-1667

Fax (512) 338-1331

Tetra Tech Project No. 021018

REMEDIAL INVESTIGATION REPORT

NORTH ALCOA SITE

EAST ST. LOUIS, ILLINOIS

February 22, 2005

DRAFT - REVISED

REMEDIAL INVESTIGATION REPORT

NORTH ALCOA SITE

EAST ST. LOUIS, ILLINOIS

March 17, 2009

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc i March 17, 2009

TABLE OF CONTENTS Page

LIST OF TABLES........................................................................................................................................ v LIST OF FIGURES ..................................................................................................................................... vi LIST OF APPENDICES.............................................................................................................................vii LIST OF ACRONYMS .............................................................................................................................viii EXECUTIVE SUMMARY .................................................................................................................... ES-1 1.0 INTRODUCTION ........................................................................................................................1-1

1.1 Purpose of Report ............................................................................................................1-1 1.2 Site Background...............................................................................................................1-2

1.2.1 Site History .........................................................................................................1-3 1.2.2 East St. Louis Works Plant Processes.................................................................1-5

1.2.2.1 Alumina Production ............................................................................1-5 1.2.2.2 Fluoride (Acid) Plant...........................................................................1-6 1.2.2.3 Other Processes ...................................................................................1-7

1.2.3 North Alcoa Site .................................................................................................1-7 1.2.3.1 Buildings .............................................................................................1-7 1.2.3.2 Material Stockpiling............................................................................1-8 1.2.3.3 Residue Disposal.................................................................................1-8

1.2.3.3.1 Bauxite Residue ................................................................1-9 1.2.3.3.2 Gypsum...........................................................................1-10 1.2.3.3.3 Black Cinders/Coal .........................................................1-10 1.2.3.3.4 SPL and Black Mud........................................................1-11

1.3 Report Organization.......................................................................................................1-11 2.0 Study Area Investigation...............................................................................................................2-1

2.1 Site Access.......................................................................................................................2-2 2.2 Aerial Photography, Survey, and Mapping......................................................................2-3 2.3 Field Sampling Procedures ..............................................................................................2-3

2.3.1 Soil/Residue Investigation ..................................................................................2-4 2.3.1.1 Surface Soil Sampling.........................................................................2-5 2.3.1.2 Subsurface Soil Sampling ...................................................................2-5

2.3.2 Surface Water Investigation................................................................................2-6 2.3.3 Sediment Investigation .......................................................................................2-7 2.3.4 Groundwater Investigation .................................................................................2-7

2.3.4.1 Well Installation and Geophysical Logging........................................2-7 2.3.4.1.1 Geophysical Logging ........................................................2-8 2.3.4.1.2 Well Installation................................................................2-8 2.3.4.1.3 Hydraulic Testing ...........................................................2-10

2.3.4.2 Groundwater Use Study and Evaluation ...........................................2-11 2.3.5 Radiological Investigation ................................................................................2-12

TABLE OF CONTENTS (Continued) Page

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc ii March 17, 2009

2.3.6 Geotechnical Investigation ...............................................................................2-13 2.3.7 Agronomic Investigation ..................................................................................2-13 2.3.8 SPL Investigation and Removal in IB-3c .........................................................2-14 2.3.9 Phase 2 Ecological Data Collection..................................................................2-15

2.3.9.1 Soil Investigation Methods ...............................................................2-15 2.3.9.2 Plant Tissue Investigation Methods ..................................................2-16 2.3.9.3 Terrestrial Invertebrate Investigation Methods .................................2-16

2.4 Data Validation ..............................................................................................................2-17 3.0 PHYSICAL CHARACTERISTICS OF STUDY AREA .............................................................3-1

3.1 Site Features.....................................................................................................................3-1 3.2 Soils .................................................................................................................................3-1 3.3 Geology............................................................................................................................3-2 3.4 Groundwater ....................................................................................................................3-3

3.4.1 Hydrogeology .....................................................................................................3-3 3.4.2 Groundwater Use ................................................................................................3-4

3.5 Surface Water and Hydrology .........................................................................................3-5 3.6 Climate and Meteorology ................................................................................................3-5 3.7 Demography and Land Use .............................................................................................3-6 3.8 Ecology ............................................................................................................................3-7

4.0 NATURE AND EXTENT OF CONTAMINATION ...................................................................4-1 4.1 Surface Soil......................................................................................................................4-1

4.1.1 Metals .................................................................................................................4-2 4.1.1.1 IB-1 – Residue Disposal Areas ...........................................................4-3 4.1.1.2 IB-2 – Gypsum Dike Areas.................................................................4-3 4.1.1.3 IB-3 – Other Areas of Alcoa Activities...............................................4-4 4.1.1.4 IB-4 – Areas with No Known Alcoa Activities ..................................4-4

4.1.2 Fluoride, Cyanide and pH...................................................................................4-5 4.1.3 Organics ..............................................................................................................4-6 4.1.4 Radiological Analyses ........................................................................................4-8

4.2 Subsurface Soil ................................................................................................................4-9 4.2.1 Metals .................................................................................................................4-9

4.2.1.1 IB-1 – Residue Disposal Areas .........................................................4-10 4.2.1.2 IB-2 – Gypsum Dike Areas...............................................................4-11 4.2.1.3 IB-3 – Other Areas of Alcoa Activities.............................................4-11 4.2.1.4 IB-4 – Areas with No Known Alcoa Activities ................................4-12

4.2.2 Fluoride, Cyanide, pH.......................................................................................4-12 4.2.3 Organics ............................................................................................................4-13

4.3 Sediment ........................................................................................................................4-15


Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc iii March 17, 2009

4.3.1 Metals ...............................................................................................................4-16 4.3.2 Fluoride, Cyanide, pH.......................................................................................4-16 4.3.3 Organics ............................................................................................................4-17

4.4 Surface Water ................................................................................................................4-19 4.4.1 Metals ...............................................................................................................4-19

4.4.1.1 Total Metals ......................................................................................4-20 4.4.1.2 Dissolved Metals...............................................................................4-20

4.4.2 Fluoride, Cyanide, Sulfide, pH .........................................................................4-21 4.4.3 Organics ............................................................................................................4-23

4.5 Groundwater ..................................................................................................................4-24 4.6 Geotechnical Samples....................................................................................................4-25

4.6.1 IB-1 – Residue Disposal Areas .........................................................................4-25 4.6.2 IB-2 – Gypsum Dike Areas ..............................................................................4-26 4.6.3 IB-4 – Areas with No Known Alcoa Activities ................................................4-27

4.7 Agronomic Samples.......................................................................................................4-27 4.8 Phase 2 Ecological Data Collection...............................................................................4-28

4.8.1 Surface Soil Samples ........................................................................................4-28 4.8.2 Vegetation Samples ..........................................................................................4-30 4.8.3 Terrestrial Invertebrate Samples .......................................................................4-30

4.9 Off-Site Boring Investigation ........................................................................................4-31 5.0 CONTAMINANT FATE AND TRANSPORT............................................................................5-1

5.1 Potential Migration Routes ..............................................................................................5-1 5.1.1 Windborne Migration .........................................................................................5-1 5.1.2 Surface Water Migration ....................................................................................5-1 5.1.3 Soil to Groundwater Migration...........................................................................5-2

5.2 Constituent Persistence ....................................................................................................5-2 6.0 OVERVIEW OF CONCEPTUAL SITE MODEL .......................................................................6-1

6.1 Investigative Block 1 – Residue Disposal Areas .............................................................6-2 6.1.1 Investigative Block 1a ........................................................................................6-2 6.1.2 Investigative Block 1b ........................................................................................6-3 6.1.3 Investigative Block 1c ........................................................................................6-3

6.2 Investigative Block 2 – Gypsum Dike Areas...................................................................6-4 6.3 Investigative Block 3 – Other Areas of Alcoa Activity ...................................................6-4

6.3.1 IB-3a Brick Works/Childs Property....................................................................6-5 6.3.2 IB-3b Redevelopment Area ................................................................................6-5 6.3.3 IB-3c Spent Potlining Stockpile Area.................................................................6-5

6.4 Investigative Block 4 – Areas with No Known Alcoa Activity.......................................6-6 6.4.1 IB-4a North Wet Area.........................................................................................6-6


Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc iv March 17, 2009

6.4.2 IB-4b Triangle Wet Area ....................................................................................6-7 6.4.3 IB-4c Ball Fields.................................................................................................6-7 6.4.4 IB-4d Berm Wet Area.........................................................................................6-7 6.4.5 IB-4e Active Commercial Area ..........................................................................6-8

6.5 Groundwater ....................................................................................................................6-8 7.0 SUMMARY AND CONCLUSIONS ...........................................................................................7-1 8.0 REFERENCES .............................................................................................................................8-1

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc v March 17, 2009

LIST OF TABLES Table Title

2-1 Master List of Samples, North Alcoa Site, East St. Louis, Illinois 3-1 Results of Aquifer Testing, North Alcoa Site, East St. Louis, Illinois 3-2 Field Verification Records, Water Well Survey, North Alcoa Site, East St. Louis, Illinois 4-1 Summary of Detected Constituents in Surface Soils, North Alcoa Site, East St. Louis, Illinois 4-2 Summary of Radiological Results for Surface Samples, North Alcoa Site, East St. Louis, Illinois 4-3 Summary of Detected Constituents in Subsurface Soil, North Alcoa Site, East St. Louis, Illinois 4-4 Summary of Detected Constituents in Sediment, North Alcoa Site, East St. Louis, Illinois 4-5 Summary of Detected Constituents in Surface Water, North Alcoa Site, East St. Louis, Illinois 4-6 Summary of Detected Constituents in Groundwater, North Alcoa Site, East St. Louis, Illinois 4-7 Summary of Geotechnical Testing Results, North Alcoa Site, East St. Louis, Illinois 4-8 Summary of Agronomic Sample Results, North Alcoa Site, East St. Louis, Illinois 4-9 Summary of Phase 2 Surface Soil Samples, North Alcoa Site, East St. Louis, Illinois 4-10 Summary of Phase 2 Vegetation Samples, North Alcoa Site, East St. Louis, Illinois 4-11 Summary of Phase 2 Invertebrate Samples, North Alcoa Site, East St. Louis, Illinois

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc vi March 17, 2009

LIST OF FIGURES Figure Title

1-1 Site Location Map 1-2 1900 Topographic Map of the East St. Louis Area 2-1 Investigative Blocks 2-2 Site Topographic Map 2-3 Upland Sampling Locations 2-4 Surface Water Sample Locations 2-5 Sediment Sample Locations 2-6 Groundwater Monitoring Well Locations 2-7 Location of Radiological Samples 2-8 Locations of Phase 2 Ecological Samples 3-1 Surficial Soil Types 3-2 Cross Section Location Map 3-3 Geologic Cross Sections A-A’ & B-B’ 3-4 Habitat Map 3-5 Generalized Geologic Cross Section 3-6 1995 Potentiometric Surface American Bottoms Aquifer 3-7 American Bottoms Potentiometric Surface July 26, 2004 3-8 Wind Rose for St. Louis Based on Data at Lambert Airport (1987-1991) 3-9 Land Use Map 3-10 Property Ownership Within the Site 4-1a Aluminum Results of Sitewide Surface Soil Samples 4-1b Arsenic Results of Sitewide Surface Soil Samples 4-1c Lead Results of Sitewide Surface Soil Samples 4-1d Thallium Results of Sitewide Surface Soil Samples 4-1e Vanadium Results of Sitewide Surface Soil Samples 4-2 Fluoride, Cyanide, and pH Results of Sitewide Surface Soil Samples 4-3 Organics Results of Sitewide Surface Soil Samples 4-4 Total Radium Results of Surface Soil Samples 4-5 Locations and Metals Results of Sitewide Subsurface Soil Samples 4-6 Fluoride, Cyanide, and pH Results of Sitewide Subsurface Soil Samples 4-7 Organics Results of Sitewide Subsurface Soil Samples 4-8 Metals Results of Sitewide Sediment Samples 4-9 Fluoride, Cyanide, and pH Results of Sitewide Sediment Samples 4-10 Organics Results of Sitewide Sediment Samples 4-11 Total and Dissolved Metals Results of Sitewide Surface Water Samples 4-12 Fluoride, Cyanide, pH, and Sulfate Results of Sitewide Surface Water Samples 4-13 Organics Results of Sitewide Surface Water Samples 4-14 Analytical Results of Sitewide Groundwater Samples 4-15 Locations of Offsite Investigatory Borings 4-16 Limits of Bauxite Residue

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc vii March 17, 2009

LIST OF APPENDICES Appendix Title A Technical Memoranda and Work Plan Addenda B Soil Boring Logs C Geophysical Logs of Monitoring Well Borings D Monitoring Well Boring Logs and Well Construction Diagrams E Phase 2 Ecological Investigation Sampling Logs F Data Validation Checklists G Slug Test Data

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc viii March 17, 2009

LIST OF ACRONYMS AOC Administrative Order on Consent BERA Baseline Ecological Risk Assessment BHHRA Baseline Human Health Risk Assessment CERCLA Comprehensive Environmental Response, Compensation and Liability Act COI Chemicals of Interest COPC Chemicals of Potential Concern COPEC Chemicals of Potential Ecological Concern DGPS Differential Global Positioning System ECOI Ecological Chemicals of Interest EPC Exposure point concentration ft-msl Feet above mean sea level FS Feasibility Study HSA Hollow Stem Auger IB Investigative Block IEPA Illinois Environmental Protection Agency IPHD Illinois Public Health Department ISGS Illinois State Geological Survey ISWS Illinois State Water Survey msl Mean sea level RBC Risk-Based Concentration RDA Residue Disposal Area RI Remedial Investigation RI/FS Remedial Investigation/Feasibility Study ROD Record of Decision RSL Regional Screening Limit RTK GPS Real-time Kinematic Global Positioning System SAP Sampling and Analysis Plan SOP Standard Operating Procedure SOW Statement of Work SPL Spent Potliner SSL Soil screening level TDS Total Dissolved Solids TRV Toxicity reference value UC&D Upgrade Construction and Development, Inc. USCS Unified Soil Classification System USEPA United States Environmental Protection Agency VOCs Volatile organic compounds

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc ES-1 March 17, 2009

EXECUTIVE SUMMARY

This document presents the results of the Remedial Investigation at the North Alcoa Site (Site) located in

the City of East St. Louis, Illinois. The RI is being performed pursuant to the Administrative Order on

Consent and Statement of Work (AOC/SOW) for the Site (USEPA Docket No. V-W-’03-C-728), dated

December 31, 2002. The Site includes the property located north of Missouri Avenue, which is

approximately bounded by 29th Street to the west, Alton & Southern Railroad to the east and Lake Drive

to the north. The RI characterizes the nature and extent of hazardous substances released from the former

Alcoa operations including designated waste management units located north of Missouri Avenue. Risk

to human health and the environment is provided in separate risk assessment reports. The RI also

provides data needed to evaluate remedial technologies.

In order to characterize the nature and extent of contamination on the Site, samples were collected of soil

(surface and subsurface), sediment and surface water from the 12 subareas on the Site. Investigative

Block (IB) -3c, the Spent Potliner (SPL) Stockpiling Area was not sampled as a part of the initial

investigation, but test pits were dug to visually identify the extent of wastes. The results of the test pit

excavation and sampling were reported to the USEPA in Technical Memorandum No. 4. An SPL

Removal Plan was subsequently submitted for the area and presented in the Revised Final Spent Potliner

Removal Plan. The SPL Removal Action was performed in March of 2006 and the SPL Removal results

are presented in the Completion Report. A supplemental Field Sampling Plan was prepared and an

investigation was conducted to characterize subsurface conditions. These investigation results are

presented in Technical Memorandum 10. The above referenced documents are included in Appendix A.

Most of the data were collected during the Phase 1 sampling efforts performed in the Fall of 2003.

Additional data needed to reduce uncertainty in the ecological risk assessment were collected as Phase 2

efforts in the Fall of 2004. Subsurface data were collected in the SPL Area (IB-3c) in Fall 2007. The

methods of sample collection, data validation and presentation of analytical results are included in this

report. The data have been submitted as an electronic deliverable to the agency under separate cover as

required by the AOC/SOW. The analytical results are presented in tables and maps, and summary

statistics of the results are also provided.

Potential risks to human health and the environment will be evaluated in the companion documents,

Revised Draft Baseline Human Health Risk Assessment, Alcoa Former East St. Louis Operations, East

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc ES-2 March 17, 2009

St. Louis, IL and Revised Draft Baseline Ecological Risk Assessment, Alcoa Former East St. Louis

Operations, East St. Louis, IL.

The FS will analyze various methods of providing and ensuring the continued long-term containment of

the wastes and evaluate each option or combination of options, relative to the FS screening criteria,

including the threshold criteria of protection of human health and the environment.

Alcoa Inc. Tetra Tech, Inc. J:\021018\Revised RI Report\Drafts\Revised RI 021018_draft_cml_blm.doc 1-1 March 17, 2009

1.0 INTRODUCTION

This Remedial Investigation (RI) Report has been prepared pursuant to the Administrative Order on

Consent and Statement of Work (AOC/SOW) for the North Alcoa Site (the “Site”), East St. Louis

(USEPA Docket No. V-W-’03-C-728, signed December 31, 2002). The requirement for the RI Report is

set forth in Section IX 27 C Task III of the AOC. Alcoa Inc. and the City of East St. Louis are

respondents under the consent order with the U.S. Environmental Protection Agency (USEPA). As stated

in the SOW:

• The RI shall evaluate the nature and extent of contamination at and from the Site and also assess the risk from this contamination on human health and the environment; and,

• The RI shall provide sufficient Site data necessary to evaluate remedial technologies.

The Remedial Investigation/Feasibility Study (RI/FS) Work Plan (Alcoa and the City of East St. Louis,

2003) provided the background information and risk-based technical approach necessary to design and

implement the RI/FS in accordance with the requirements of the AOC/SOW in a manner consistent with

USEPA guidance. The geographic scope of the RI/FS was based on a two-part definition of the Site

provided in the AOC/SOW (page 4):

“Site” or “Facility” or “North Alcoa Site” shall mean the facility as that term is defined at 42 U.S.C. Section 9601(9), which includes the following areas in East St. Louis, Illinois: 1) the property located north of Missouri Avenue, which is approximately bounded by 29th St. to the west, Alton Southern Railroad to the east and Lake Drive to the north; and 2) areas located north of Missouri Avenue where hazardous substances have or may have come to be located from former Alcoa operations.

The Site boundary set forth in the first part of this definition is shown in Figure 1-1. The Site boundary,

described under the second part of the definition, will be identified in this report. The Site boundary will

be finalized in the Record of Decision for the Site, which will be issued by USEPA after public review

and comment, based on the findings of the final RI/FS report.

1.1 Purpose of Report

The purpose of this report is to provide the USEPA and the Illinois EPA with the findings of the RI

performed at the Site. The substantive portion of the RI data collection was performed in the Fall of 2003


with subsequent data collection efforts performed in the Summer and Fall of 2004 to fill identified data

gaps. The SPL removal and confirmatory borings in IB-3c were performed in Fall 2006 and Fall 2007,

respectively.

The RI/FS Work Plan proposed a risk-based approach to managing the constituents identified in the

soil/residue at the Site. Therefore, the focus of the data collection effort was to not only determine the

nature and extent of the constituents identified at the Site, but to also collect the appropriate data to assess

the potential risks posed to both human and ecological receptors under realistic exposure scenarios. The

human health and ecological risk assessments were prepared as part of the RI and are being submitted to

the USEPA and the Illinois EPA under separate cover. Likewise, the Feasibility Study (FS) is also being

submitted under separate cover.

1.2 Site Background

The North Alcoa Site consists of an approximate 400-acre parcel of land located in a mixed-use area in

the City of East St. Louis, IL. To the north and west of the Site are primarily residential areas. The

property to the east consists of a golf course and a residential area. The area to the south of the Site is

primarily industrial property.

Most of the Site area is occupied by three bauxite Residue Disposal Areas (RDAs) (sometimes referred to

as “mud lakes”) contained by dikes, primarily composed of gypsum by-product. These materials were

produced by the former Alcoa operations located south of Missouri Avenue. These and other materials

and areas within the Site associated with the former Alcoa operations are described below, and in more

detail in the RI/FS Work Plan (Alcoa and the City of East St. Louis, 2003). This RI Report addresses the

nature and extent of contamination, in areas north of Missouri Avenue due to hazardous substances

released from former Alcoa operations. The western area of the Site also contains an industrial operation

and community ball fields. Several areas of current or former non-Alcoa industrial use also occur

adjacent to Missouri Avenue along the southeastern boundary of the Site. The following subsections

provide a summary of the historical use of the Site.


1.2.1 Site History

Prior to Alcoa’s purchase, the property use at the North Alcoa Site appears to have been twofold. First, a

substantial portion of the property was the upper end of Pittsburg Lake, a large oxbow lake (meander scar

of the Mississippi River) as is evident on a topographic map dating back to the turn of the 19th century

(Figure 1-2). Today Pittsburg Lake is not present within the North Alcoa Site, and appears to have been

largely filled as part of the development of East St. Louis, including placement of bauxite residue and fill

associated with the operations of the East. St. Louis Works (as discussed below). Review of aerial

photographs indicates that the portion of the North Alcoa Site to the south of the former Pittsburg Lake

was used for farming prior to Alcoa’s ownership.

At the turn of the 19th century, Alcoa, then called the Pittsburgh Reduction Company, started the first

commercial production of aluminum. Due to the rising demand for aluminum, Alcoa soon realized it

needed a dedicated facility to serve as Alcoa’s first bauxite refinery. The East St. Louis area offered a

ready supply of raw materials (coal, limestone, fluorospar), transportation (rail and barge), and labor, and

was advantageously located between Alcoa’s bauxite mines in Arkansas and its aluminum reduction

plants in New York. Land was purchased southeast of the City of East St. Louis in 1902 and alumina

manufacturing started a year later with the opening of Plant 1.

The high demand for alumina in World War I and the use of South American bauxite ores resulted in

construction of a second bauxite refinery and an acid plant (Plant 2) completed in 1918. Shortly

thereafter, production reached approximately 1 million pounds of alumina per day. A temporary shut

down of Plant 2 occurred in the early 1930s as a result of the Great Depression; however, by 1937, the

facility was producing approximately 2 million pounds of alumina per day.

During World War II, production increased dramatically under the name of the East St. Louis Works and

led to construction of a U.S. Government funded Sinter Plant to increase alumina yield from the high

silica Arkansas bauxite ore. The sintering operations proved to be uneconomical and the plant was shut

down in 1946 and demolished in the early 1950s. Maximum alumina production occurred in 1943 when

daily output exceeded 2 million pounds and the work force approached 2,000. A large research and

development (R&D) lab was constructed to the northwest of Plant 1 in the 1940s. Demand for alumina

and other specialty chemical products kept the Alcoa facility operational into the late 1950s; however, by

1957, plant operations were no longer economical and a shut down and demolition program was initiated.


By the mid 1960s much of the production facilities had been demolished and the land sold. Limited R&D

work continued at the Site until 1977, when the R&D operations were entirely relocated to Pennsylvania.

Major milestones for the East St. Louis Works include:

1902 March 10th, first land purchased. Construction begins April 5th.

1903 East St. Louis Works begins alumina production using a batch process with bauxite from Alcoa’s Arkansas mine. The calcined alumina is sent to Alcoa’s reduction plants in Niagara Falls and Massena, New York. First year’s production is 11 million pounds.

1905 The Acid Plant begins operations using fluorospar from Illinois and Kentucky to manufacture aluminum fluoride, which is also used in the reduction of aluminum.

1907 Pittsburgh Reduction Company renamed Aluminum Ore Company and then to Aluminum Company of America (now Alcoa Inc.) began hauling bauxite residue with light rail rather than mule drawn carts.

1911 Facility changes to the Bayer process, an improved continuous process for alumina production.

1916 Barge shipments of bauxite from Arkansas up the Mississippi River begin unloading at Fox Terminal Dock. Barge shipping continues until 1925, when all material is shipped by rail.

1918 Plant 2, a second alumina and acid plant, begins alumina production using bauxite from Surinam, South America.

1925 Bauxite residue is pumped to RDAs rather than using light rail.

1929 Change over to the dry process for aluminum fluoride production.

1939 Start processing of spent potliner (SPL).

1943 Year of greatest production – 829 million pounds of alumina.

1944 U.S. Government-owned Sinter Plant starts.

1946 Sinter Plant shuts down.

1955 Start U.S. Government fluorospar stockpile near old Sinter Plant.

1957 Refinery shuts down demolition starts the following year.

1960 Shut down all production at East St. Louis Works.

1960s Property sold.

1970s R&D lab moved to Alcoa Technical Center in Pennsylvania.

Current configuration of the Site is documented by an aerial photo flown over the North Alcoa Site by

Spectrum in November 2003.

With few exceptions, all production facilities at Alcoa’s East St. Louis Works were located on an

approximate 150-acre parcel southwest of Missouri Avenue. The approximate 400-acre parcel northeast


of Missouri Avenue, (the North Alcoa Site as defined in the AOC/SOW) was primarily used for

stockpiling of raw materials and for the disposal of the various wastes generated by the process. Review

of historical aerial photographs indicates that stockpiling areas were primarily along railroads, which were

used to import raw materials (coal, fluorospar, limestone). The historical aerial photographs cannot be

georeferenced to current site coordinates. There is no current visual indication of the presence of these

former stockpiling areas.

1.2.2 East St. Louis Works Plant Processes

This section provides a brief description of the East St. Louis Works processes, as they pertain to disposal

activities at the Site. A more complete description of the plant processes was provided in the RI/FS Work

Plan (Alcoa and the City of East St. Louis, 2003).

Although other ancillary manufacturing processes were performed at the East St. Louis Works, it was the

production of alumina and aluminum fluoride from bauxite that dominated the industrial processes. The

following sections provide a summary of the former Alcoa processes that contributed wastes present at

the North Alcoa Site.

1.2.2.1 Alumina Production

In general, aluminum oxides are extracted from bauxite ore in a pressurized digester with hot sodium

hydroxide solution (caustic). The slurry is then thickened and filtered to remove the insoluble fraction,

called red mud (bauxite residue), from the sodium aluminate liquor. Aluminum trihydrate (termed

“hydrate”) is then precipitated and filtered from the liquor, which is recirculated back to the digesters.

The aluminum trihydrate is then calcined in a kiln into alumina. The raw materials used, and wastes

generated are discussed below in their order within the process at the former East St. Louis Works.

• Bauxite Handling: Bauxite ore was delivered by rail and unloaded, crushed and sieved. Although bauxite handling occurred southwest of Missouri Avenue, it is possible that it was stockpiled for periods at the North Alcoa Site.

• Lime Burning: The former East St. Louis Works made caustic by reacting quicklime (CaO) with soda ash (Na2CO3). The soda ash was purchased, but the quicklime was manufactured at the site by “burning” powdered limestone (CaCO3) in a kiln, driving off CO2. It is possible that residues of limestone, lime, and soda ash may exist from stock piling at the North Alcoa Site.


• Digestion: Crushed bauxite, quicklime, soda ash, and recycled caustic liquor, were placed in digesters, then heated, pressurized with steam, and agitated. The resulting slurry consisting of red mud and sodium aluminate liquor (NaAlO2) was then pulled off and sent to filtration.

• Red Mud Filtration: At this stage, the red mud (bauxite residue) was removed from the sodium aluminate liquor. At first, filter presses were used to strain the red mud from the liquor. Later, vertical leaf pressure filters (Kelly presses) and then rotary vacuum filters were used to remove the red mud. The red mud filter cake was washed to recover liquor and the residue transported to the North Alcoa Site for disposal. Red mud is red in color, very fine-grained (>90% passes a 200 sieve) and alkaline (pH generally above 10.5). Typical major constituents of red mud include:

30 to 60% Fe2O3

10 to 20% Al2O3

2 to 50% SiO2

2 to 10% Na2O

2 to 8% CaO

Trace to 10% TiO2

1.2.2.2 Fluoride (Acid) Plant

Besides alumina and alumina-based products, many fluoride products were produced at the East St. Louis

Works. The primary fluoride-based product was aluminum fluoride (AlF3), which, on a mass basis, was

the second largest product manufactured at the East St. Louis Works. Alumina fluoride, like alumina, is

primarily used in the aluminum smelting process.

In general, the process of manufacturing aluminum fluoride consists of reacting aluminum trihydrate with

hydrofluoric acid or hydrofluoric gas and then calcining to anhydrous aluminum fluoride. The major

process at East St. Louis Works related to this production was the generation of the hydrofluoric

acid/fluorine gas. Fluorospar ore (composed of the mineral fluorite, CaF2) was reacted with sulfuric acid

(H2SO4) in a still, liberating hydrofluoric acid gas. During reaction, calcium sulfate (which is the mineral

gypsum, CaSO4) would precipitate in the still. The gypsum was removed and used to build the

containment dikes around the mud lakes. Later, a dry process was used where fluorspar was reacted with

sulfuric acid in a rotating heated kiln with a breaker. The gypsum leaving the kiln was in dry powdered

form. Fluorine gas was liberated, which was then reacted with dry alumina hydrate producing an

anhydrous aluminum fluoride.


The fluorospar was obtained from a variety of sources but the majority originated from southeastern

Illinois and Kentucky, where Alcoa owned and operated mines. Lead and other elements, such as silver,

are associated with fluorospar and tend to remain in the gypsum.

1.2.2.3 Other Processes

• Sinter Plant: In order to increase the aluminum oxide yield from the high silica content Arkansas bauxite, the red mud was sintered in rotary kilns with limestone and soda ash, and returned to the digesters for a second digestion. “Brown mud”, similar to red mud, from the digestion of the sintered clinker was slurried to the North Alcoa Site.

• Power Production: Plants 1 and 2 at the East St. Louis Works had steam and electrical generation capacity. Generators fueled by coal were used early in the facility’s operational history, and it is possible that fly- and bottom ash was disposed of on the Site.

• Cryolite Recovery: In 1939 a cryolite recovery process (called the Heiser Process) was started at the East St. Louis Works. Cryolite bath was recovered from spent potliner (SPL) shipped from Alcoa’s smelters in Massena and Niagara Falls, NY. The process of recovering cryolite bath consisted of crushing SPL to a fine granule and then leaching it with a hot caustic solution. The liquor was then thickened, filtered, and neutralized such that the cryolite precipitated. The precipitated cryolite was then filtered and dried with the liquor returning to the refining plant digestion. Residues from the SPL recovery process are typically called “black mud” and predominantly contain carbon, have a high pH, and likely contain some fluoride and cyanide. There is no record of where SPL was stored prior to processing; however, there is some field evidence to suggest it was stored at the North Alcoa Site.

1.2.3 North Alcoa Site

This section focuses on the historical activities and residue disposal that occurred at the North Alcoa Site

(Alcoa properties northeast of Missouri Avenue) prior to and during operation of the East St. Louis

Works.

1.2.3.1 Buildings

Besides the short existence of the Sinter Plant (discussed above), a few other buildings were constructed

at the North Alcoa Site during Alcoa’s ownership of the property as listed below:

• Cooking Utensil Warehouse: The Aluminum Cooking Utensil Co. constructed a 46,000 square foot warehouse in stages from 1911 to 1924 for the storage of cookware products. No cookware manufacturing was done at the facility; however, there was a small “buffing room”


where cookware was polished prior to packaging. The warehouse operation was closed in 1932 and subsequently the building became the supply house for the Alton and Southern Railroad, an Alcoa subsidiary at the time. The warehouse building remains today, but the buffing room was demolished.

• Alton and Southern Railroad Offices: Located in front of the Cooking Utensil Warehouse, these offices were built in 1928 and were originally used as offices and experimental labs for a mono-hydrated bauxite venture. They subsequently were used as office space for the Alton and Southern Railroad. This building remains today as the Metro East Recycling Center.

• Truck Garage: Also built in 1911 as part of the Cooking Utensil Warehouse operations, this was a truck maintenance facility. There is no record of use after 1924.

1.2.3.2 Material Stockpiling

It is evident in the aerial photos that materials were stockpiled west of the RDAs during the operational

period of the East St. Louis Works. No information has been found regarding what specific materials

were stockpiled other than the bauxite residue and gypsum disposed at the Site. Based on the Site history,

remaining stockpiled materials at the Site may include:

• Coal and coal coke;

• Fluorospar;

• Bauxite ore (primarily south of Missouri Avenue);

• Limestone and lime; and

• Soda ash (i.e., sodium carbonate).

It appears unlikely that product (hydrate, alumina, aluminum fluoride) would have been stored in bulk at

the North Alcoa Site since these materials required shelter.

1.2.3.3 Residue Disposal

Residues disposed of at the North Alcoa Site included red mud, brown mud, gypsum, red and white

cotton duck filters potentially coal and cinders, black mud and SPL. The following sections summarize

the residues present at the Site.


1.2.3.3.1 Bauxite Residue

The largest volume of residue material present at the North Alcoa Site is bauxite residue (red mud).

Using a modern value of 0.6 pounds of residue generated for each pound of alumina, the 19.5 billion

pounds of alumina produced would suggest some 6 million tons (4.7 million cubic yards at 0.8 cy/ton) of

residue may have been disposed of at the North Alcoa Site; however, this value likely underestimates the

true mass/volume since East St. Louis Works likely operated in a less efficient manner than modern

refineries.

Consistent with historical nomenclature, there are three large, named RDAs of approximately 40 acres

each (Figure 1-1). These RDAs are adjacent to one another and form a rough triangular shape of 120

acres with the three RDAs forming the apexes of the triangle (RDA 1 is the northwest apex; RDA 3 is the

northeast apex; and RDA 2 is the south apex).

In addition to the three named bauxite RDAs, bauxite residue was suspected to have been disposed of

over a broader area of the North Alcoa Site. There is historical topographic evidence that the original

Pittsburg Lake extended beyond the area currently occupied by RDAs (Figure 1-2), and some of the lake

was thought to have been filled with residue during the early history of the facility, perhaps prior to

construction of the RDAs. As discussed in Section 4.9, the results of this RI confirmed that the limits of

residue extended beyond the RDAs, but not beyond the limits of the “Site” as defined in the AOC. Figure

4-16 maps the approximate limits of bauxite residue at the Site.

RDA 1, designated Investigative Block (IB)-1a, the northwestern and oldest of the large RDAs, is also

likely the thickest and may contain the most residue. Although originally surrounded by gypsum dikes,

the dike was breached on the western end (likely in the 1930s) to mine some of the residue. About a 5-

acre area of residue was removed and the dike left open. Of particular note is that the historical photos

clearly indicate the mine high wall was vertical and free standing in 1937 suggesting the residue had

consolidated quite rapidly. This quick consolidation may be related to the possibility that this residue

contains a larger fraction of lime (calcium oxide) than the material in RDAs 2 and 3. Although calcium is

not a COPC at the Site, differences in lime content between the RDAs may influence the suitability of the

residue for recycling/beneficial use.

RDA 2, designated IB-1b, (the southern RDA) is the most recent deposit and may also be the thinnest

(least amount of residue). RDA 2 is sometimes referred to as the “Brown Pond” reflecting the


contribution of brown mud from the Sinter Plant; however, as mentioned before, the actual volume of

brown mud may be small relative to the volume of red mud. Based on field evidence, at some point this

RDA may have received black mud from the SPL cryolite recovery operation, although there is no record

as such. Toward the later period of the facility operation, it is clear that RDAs 2 and 3 were hydraulically

connected as the liquid level of the residue lake covered the interior dike separating the two deposits.

RDA 3, designated IB-1c, (the northeastern RDA) is of intermediate age and thickness to RDAs 1 and 2.

RDA 3 is referred to as the “Red Pond” and also as the “East Lake” in historical Alcoa engineering

documents. The eastern gypsum dike stretches in an arc from the south to the north. There is a smaller

parallel outer dike that separates the RDA from the North Wet Area (IB-4a) to the east and north. An

active line of the Alton & Southern Railroad runs immediately adjacent to the eastern toe of the main

dike. Correspondence in 1964 references lateral slippage of this dike, causing displacement of the active

rail line to the east. Reportedly, the lake (RDA 2 and/or 3) was drained through a ditch on the south side

after the Bayer plant ceased production in November 1957. To eliminate dust problems along the sandy

beach of residue (about 100 feet wide paralleling the dike), part of the eastern barren surfaces of RDA 2

and 3 was covered with gypsum when operations ceased in 1961.

1.2.3.3.2 Gypsum

Review of the historical process records does not provide an estimate of the volume of gypsum disposed

of at the North Alcoa Site. Due to its cementitious properties and the mode of disposal (light rail and

clam shell bucket from hopper cars) the gypsum was used to build up the dikes along rail lines. These

dikes exist for the three main RDAs, plus a smaller impoundment area north of RDA 1 (Figure 1-1). It

should be expected that red and white press cotton duck filter media and other miscellaneous wastes may

be present in the dike areas based on historic access by the light rail system.

1.2.3.3.3 Black Cinders/Coal

In some areas south of the RDAs and on top of portions of the RDAs, black vesicular cinders are present.

Although the source of these cinders is not certain, it appears they may be bottom ash from burning coal

in boilers. These cinders were likely considered good fill material and used as such. In addition to

cinders, waste coal was found on the property during a prior site visit.


1.2.3.3.4 SPL and Black Mud

A small area near the west end of the dike between RDAs 1 and 2 contained black, carbonaceous material

that is possibly the remnant of a former SPL stockpile from the cryolite recovery operation (Figure 1-1).

This material was removed in 2006. Additionally, there is some field evidence that black mud was

disposed in RDA 2.

1.3 Report Organization

This report is presented in 8 sections as follows:

Section 1.0 Introduction

Section 2.0 Study Area Investigation: Describes the investigative methods and the locations, number and parameters of the samples collected. Also presents any deviations from the approved work plan and provides justification for the deviations.

Section 3.0 Physical Characteristics of Study Area: Describes the geology, hydrogeology surface water hydrology, demographics, land use and ecological setting of the Site.

Section 4.0 Nature and Extent of Contamination: Provides a discussion of the constituents detected, their location, concentrations and the media in which they were detected.

Section 5.0 Contaminant Fate and Transport: Presents the potential for transfer of detected constituents between media at the Site and provides an analysis of the potential for offsite migration.

Section 6.0 Overview of Conceptual Site Model: Presents the current understanding of the Site considering the physical features, the nature and extent of detected constituents and their anticipated fate and transport.

Section 7.0 Summary and Conclusions: Offers a brief summary of the findings of the RI and the conclusions drawn from them.

Section 8.0 References: Provides a bibliography of the documents cited in this report.


2.0 STUDY AREA INVESTIGATION

This section provides a summary of the procedures used to complete the RI at the Site. Deviations from

the Work Plan were documented in technical memoranda and field sampling plan addenda. The RI was

executed in accordance with the following documents which were prepared to guide the investigation.

Copies of these documents are included as Appendix A

• Remedial Investigation and Feasibility Study Work Plan, North Alcoa Site, East St. Louis, Illinois, July 24, 2003;

• Technical Memorandum 1, Pre-Remedial Investigation/Feasibility Study Site Reconnaissance, North Alcoa Site, East St. Louis, IL., February 26, 2004.

• Technical Memorandum 2, Effectiveness of the City of East St. Louis Groundwater Ordinance as an Institutional Control, North Alcoa Site, East St. Louis, IL., March 30, 2004.

• Technical Memorandum 3, Status of Existing Water Wells, North Alcoa Site, East St. Louis, IL., April 30, 2004.

• Technical Memorandum 4, Reconnaissance and Test Pits in the Spent Potlining Stockpiling Area Investigative Block 3c, North Alcoa Site, East St. Louis, IL, February 2, 2004.

• Technical Memorandum 5, Identification of Phase 1 Groundwater Chemicals-of-Interest, North Alcoa Site, East St. Louis, IL, March 1, 2004.

• Technical Memorandum 6, Bauxite Residue Soil Amendment Work Plan, North Alcoa Site, East St. Louis, IL.

• Technical Memorandum, Field Sampling Plan Addendum, Proposed IB 5a Off-Site Investigatory Borings, Phase 1 RI/FS, North Alcoa Site, East St. Louis, IL, July 6, 2004.

• Technical Memorandum 7, Field Sampling Plan Addendum No. 2, Modifications to the Field Sampling Plan for the Radiological Characterization of Bauxite Residue and Gypsum, North Alcoa Site, East St. Louis, IL, August 27, 2004.

• Field Sampling Plan Addendum 3, Modifications to the Field Sampling Plan for Phase 2 Ecological Data Needs, North Alcoa Site, East St. Louis, IL, September 22, 2004.

• Technical Memorandum 8, Proposed Plan for SPL Area, Investigative Block No. 3c, North Alcoa Site, East St. Louis, Illinois, January 7, 2005

• Revised Final Spent Potliner Removal Plan, North Alcoa Site, East St. Louis, Illinois, March 2, 2006

• Completion Report, Spent Potliner Removal, North Alcoa Site, East St. Louis, Illinois, December 6, 2006

• Technical Memorandum 9, Field Sampling Plan Addendum for Former Spent Pot Lining Stockpiling Area, Investigative Block No. 3c, North Alcoa Site, East St. Louis, Illinois, March 26, 2007.

• Technical Memorandum 10, Investigation of the Former Spent Pot Lining Stockpiling Area, Investigative Block No. 3c, North Alcoa Site, East St. Louis, Illinois, March 17, 2009.


As discussed in Section 1.2, the RI/FS Work Plan divided the Site into four investigative block (IB) areas

(a total of 12 investigative sub-blocks) based on former or current Site land use, habitat, and other similar

characteristics as noted below. The locations of the four IBs and sub-blocks are shown on Figure 2-1.

The following is a list of the Investigative Blocks:

IB-1 – Residue Disposal Areas

IB-1a – RDA 1 (also known as “The Old Pond”)

IB-1b – RDA 2 (a.k.a. “The Brown Mud Pond”)

IB-1c- RDA 3 (a.k.a. “The Red Mud Pond”)

IB-2 – Gypsum Dike Areas

IB-3 – Other Areas of Alcoa Activities

IB-3a – Brick Works/Childs Property (area of the former Sinter Plant)

IB-3b – Redevelopment Area (former stockpile area)

IB-3c – Spent Potlining (SPL) Stockpiling Area

IB-4 – Areas with No Known Alcoa Activities

IB-4a – North Wet Area

IB-4b – Triangle Wet Area

IB-4c – Ball Fields

IB-4d – Berm Wet Area

IB-4e – Active Commercial Area

Based on information evaluated during the RI, small areas outside the original definition of the Site were

also investigated. For simplicity, this information is grouped into fifth investigative block:

IB-5 – Off-Site Areas

2.1 Site Access

The North Alcoa Site consists of multiple tracts and owners totaling about 407 acres. None of the Site is

owned by Alcoa and the City of East St. Louis owns parcels totaling approximately 250 acres. The

remainder of the Site is owned by private individuals or other businesses. Many of the privately-owned

parcels are located around the periphery of the site where there is public road access. Much of the City-

owned parcels tend to be in the interior portions of the Site. In early 2003, Alcoa representatives

negotiated access agreements for all Site parcels except the Hamel property on the eastern side of the Site.


Hamel was unwilling to grant access to their property for this investigation under the terms of the access

agreement. Note that the Koppers property located in the southern corner of the Site was not investigated

during this project because there were no known Alcoa activities in that parcel, as agreed to by USEPA.

Prior to drilling or sampling on properties not owned or controlled by the City of East St. Louis, access

was confirmed with the property owners, and arrangements were made regarding appropriate times and

routes of access, keys for gates, parking areas, marking of sampling locations, and known subsurface

features and utilities. After the drilling locations were marked, the local utility clearance companies were

contacted to verify that the location was clear of any underground utilities. Because the Site’s industrial

use began more than 100 years ago, underground utilities are found only along the Site perimeter streets

and not in the interior of the Site.

2.2 Aerial Photography, Survey, and Mapping

A detailed topographic map of the Site was generated by Spectrum Mapping, LLC, in November 2003.

The vertical aerial photography was obtained using a fully-equipped aerial survey aircraft flown at an

elevation of 1,980 feet providing a contact negative scale of 1” = 330’ (1:3960). Mapping was produced

to meet National Map Accuracy Standards for 1” = 50’ mapping with 1-foot contour intervals as

published by the United States Geological Survey using GPS coordinate information for ground control

points. Figure 2-2 is the topographic map of the Site on five-foot contour intervals.

2.3 Field Sampling Procedures

The RI was implemented in accordance with the Work Plan and the addenda. The field activities for the

RI were conducted in two phases. Phase 1 consisted of the bulk of the field sampling effort, and Phase 2

was limited to a focused ecological evaluation in vegetated areas of IBs 1a, 1b, 1c, 2, and 3b.

The RI was divided into eight areas of interest as follows:

• Soil/Residue Investigation;

• Surface Water Investigation;

• Groundwater Investigation;

• Radiological Investigation;

• Geotechnical Investigation;


• Agronomic Investigation; and

• Phase 2 Ecological Data Collection.

The methodology employed for each of these investigations is described in the sections below.

The locations of sampling points were determined in the field using a Differential Global Positioning

System (DGPS). Benchmarks were established and surveyed on state plane coordinates, latitude and

longitude, and mean sea level (MSL) elevation by a State of Illinois-registered professional surveyor.

Samples of various media were collected from each IB. The media sampled and sample depths were

selected based upon risk-based criteria that targeted potentially complete current or future exposure

pathways to human and/or ecological receptors. Table 2-1 is a master reference table for the sampling

program. This table provides the sample numbers, sample station locations and coordinates, depth

intervals, analytes and sample use. The upland soil sampling locations are shown on Figure 2-3. The

wetland and open water surface water sampling locations are shown on Figure 2-4. The wetland and open

water sediment sampling locations are shown on Figure 2-5.

2.3.1 Soil/Residue Investigation

Soil samples were collected at various depths in upland locations during the Phase 1 RI using various

equipment including a shovel and a hand auger, as well as Geoprobe® and Hollow stem auger (HSA)

drilling methods. All soil borings were documented per Tetra Tech Standard Operating Procedure (SOP)

No. 4: Supervision of Exploratory Borings using Tetra Tech’s detailed lithologic log as presented in the

Sampling and Analysis Plan (SAP). Generally the lithologic description of the log included soil or rock

type, color, grain size, hardness, moisture content, indications of impacts, and presence of bauxite residue.

Color was described using the Munsell Color Chart and soil type was described using the Unified Soil

Classification System (USCS). The lithologic log also included pertinent information about sampling

method, sample ID, sample depths, and analytes. Soil borings were abandoned by filling the holes.

Borings less than 2-feet deep were filled with the borehole cuttings and native soil. Dry boreholes from

2- to 10-feet deep were filled with bentonite chips to the surface. For borings greater than 10-feet deep or

if more than 2-feet of water was present in the boring, bentonite was added to the well by continuous

placement from the bottom up using a tremie hose or pipe. Specific procedures on plugging of borings

were provided in MFG SOP No. 4 in the SAP.


2.3.1.1 Surface Soil Sampling

Surface soil samples were collected from a depth of 0-2 feet using a shovel, hand auger, split spoon

(hollow-stem auger locations) or from the top of the first sampling tube (if a Geoprobe® location).

Samples were composited over the selected sample interval (0.0 to 1.0 foot for agronomic samples, and

0.0 to 2.0 feet for chemical samples). If the sample interval was selected for additional analyses (Target

Compound List; TCL) including volatile organic compounds (VOCs), then the VOC composite sample

was prepared first from the sample interval using a continuous scrape along the sample interval core.

MFG SOP No. 9: Soil and Sediment Sampling for Chemical Analysis in the Work Plan provides more

details regarding soil sampling procedures.

2.3.1.2 Subsurface Soil Sampling

Subsurface soil samples were collected down to 10 feet below grade for chemical analyses and as deep as

30 feet below grade for agronomic and geotechnical analyses. The 10-foot borings required for chemical

analyses were advanced using a GeoProbe® sampling device lined with food-grade cellulose acetate

butyrate liners. The liners were opened with a sampling kit including a core holder and a double-hook

core cutter. The shallow soil samples were collected from these cores as described in Section 2.4.1.1

above and in TETRA TECH SOP No. 9. All soil cores were field screened for lead with an XRF as

described in TETRA TECH SOP No. 18: Soil Screening by Field Portable XRF. The composite 2.0 to

10.0 feet interval sample was prepared in a decontaminated bowl by thoroughly mixing the sample

interval to a uniform color and consistency. Sample containers were filled from this composite material.

If the sample interval was selected for additional analyses (TCL), then the VOC composite sample was

prepared first from the sample interval using a continuous scrape along the sample interval core.

Hollow stem auger (HSA) drilling methods were used to advance exploratory borings where geotechnical

samples were required. The actual depth of each exploratory boring varied, but depths were selected to

represent a range of potential conditions. The field geologist directed the driller in the penetration rate,

depth of soil sample collection, and method of sample retrieval. Samples were retrieved using a

continuous soil core in a Shelby Tube or a split-spoon sampler. Typically, samples for chemical analyses

were collected using a split-spoon sampler and geotechnical samples were collected using a Shelby Tube,

however occasionally the split-spoon was used to collect geotechnical samples when the Shelby tube

could not penetrate the material. The Tetra Tech field geologist recorded pertinent information including:

rate of penetration, core recovery, the relative moisture content of the samples, zones that produced water,


and intervals of core loss in the field notebook. This information is presented on the boring logs in

Appendix A. Section 4.2 presents a detailed summary of the results of the subsurface soil samples.

All drilling equipment including drive samplers and bits, were thoroughly steam cleaned before and after

drilling each exploratory boring. Only clean, potable water from a municipal supply was used for

decontamination of drilling equipment. No solvents or petroleum-based products were used for

lubricating any drilling equipment (rods, bit, augers, mud pit, etc.) that came in contact with the borehole

or the drilling fluid. An acid rinse of 10% HNO3 was used on drilling equipment that contacted the

samples.

2.3.2 Surface Water Investigation

Surface water samples were collected from both open water sites and wetland sites. When both sediment

and surface water were collected as paired samples, the surface water samples were collected first to

avoid sampling entrained sediments. Surface water samples were collected in pre-cleaned sample

collection containers (5 gallon HDPE buckets). Sample aliquots were pumped from the collection

container with a peristaltic pump and Teflon lined tygon® tubing into sample bottles. If VOCs were to be

analyzed, the VOC aliquot was collected into 40-milliliter (ml) volatile organic analysis (VOA) vials. For

the metals analyses, dissolved aliquots were collected first, then the filter was removed and the total

aliquots were collected. For the dissolved aliquots, water from the collection container was pumped

through a 0.45-micrometer (µm) in-line, high-capacity filter. The in-line filter was purged with

approximately 200 milliliters (ml) of sample water before the laboratory container was filled. Dedicated

filters and tubing were used for each sample. Sample containers were provided and certified clean by

Lancaster Laboratories in Lancaster, PA. The sample containers were pre-preserved by the laboratory

where necessary.

Temperature, pH, specific conductance, oxidation-reduction potential (ORP), salinity and dissolved

oxygen (field parameters) were measured, immediately after sample collection using a YSI 600 series

multi-parameter meter. The field parameters were noted on the field sampling forms. Quality assurance

(QA) samples including field duplicates, field blanks, equipment blanks, and matrix spike and matrix

spike duplicates were collected at the frequencies specified in the Quality Assurance Project Plan

(QAPP).


All samples were labeled according to the time, date, and location of sampling on pre-printed laboratory

supplied labels, which indicated the analysis for the sample in the container. Labeled samples were

logged, contained in Ziploc bags, and placed on ice into pre-cooled coolers. All coolers were shipped to

the laboratory each evening with proper chain-of-custody documentation.

2.3.3 Sediment Investigation

Sediment samples were collected from open water and wetland areas. Sediment samples were collected

by pushing a core sampler directly into the sediments, approximately 6 inches deep. The core sampler

was then retrieved and the sample removed and placed in a mixing bowl. Five core samples were

collected from each location. The cores were decanted of any free water, blended, and placed into

appropriate sample containers for analysis. In locations selected for VOC analysis, the VOC aliquot was

collected directly from one of the cores prior to blending.




the laboratory each evening with proper chain-of-custody documentation.

2.3.4 Groundwater Investigation

Four monitoring wells were installed at the Site during the RI. The locations of the wells are presented on

Figure 2-6. The wells were completed in the American Bottoms Aquifer. Geophysical logging was

performed to evaluate lithologic variations, potential plume stratification, and guide the selection of

monitoring well screen interval and depth. Groundwater levels were measured to evaluate the

groundwater flow direction. Slug tests were conducted in order to estimate the lateral hydraulic

conductivity of the water-bearing strata. The following subsections provide the methodologies used in

the groundwater investigation.

2.3.4.1 Well Installation and Geophysical Logging

Four groundwater monitoring wells (MW-1 through MW-4) were installed at the Site between November

17, 2003 and November 24, 2003. The monitoring wells were installed by Geotechnology, Inc., located


in St. Louis, Missouri, using a hollow stem auger drill rig. The geophysical logging was completed by

Mundell & Associates from Indianapolis, Indiana, using equipment to measure both conductivity and

gamma activity. The following sections present the well installation and geophysical logging in more

detail.

2.3.4.1.1 Geophysical Logging

Geophysical logging was performed in each of the four boreholes in order to evaluate lithologic

variations, potential plume stratification, and guide the selection of monitoring well screen interval and

depth. The priority in the screened interval selection was to isolate areas of differential resistivity within

the water-bearing zone. Wells were not screened across confining layers or stratified groundwater layers

with large differences in apparent resistivity. Wells were also not necessarily screened across the most

permeable zone. After the borehole was drilled to the desired depth, the borehole was filled with the

drilling fluid to provide a conductive medium for running the geophysical logging tools. A single-point

resistivity geophysical logging tool was used to detect changes in the relative salinity in groundwater. If a

groundwater plume exists at the site, it is expected to have high total dissolved solids (TDS)

concentrations, which results in highly conductive groundwater, and therefore a low resistivity anomaly.

Continuous sampling along the full length of the borehole produced resistivity, conductivity and gamma

ray profiles to identify potential vertical plume stratification. The geophysical logs revealed conductivity

spikes indicative of zones containing groundwater with slightly elevated conductivity. The geophysical

logging indicated a single anomaly, but at varying depth intervals, in all monitoring wells; therefore the

screen interval was installed to cover the entire length of the anomaly plus five feet above and below.

Upon completion of the geophysical logging, the borehole was reamed in preparation for well

construction. The geophysical logs are provided in Appendix C. The geophysical logging procedures

were described in TETRA TECH SOP No. 5: Geophysical Logging in the SAP.

2.3.4.1.2 Well Installation

The monitoring wells were drilled to depths ranging from 111 to 117 feet below the ground surface.

MW-1, -3, and -4 were constructed with a 10-foot screened interval and MW-2 was constructed with a

20-foot screened interval. The screened interval and depth were field-determined based on the results of

the geophysical logging as described in Section 2.4.4.1.2. The boring logs and well construction

diagrams for the monitoring wells are provided in Appendix D. The following table presents the borehole

total depth, screened interval and top of casing elevation for each of the wells.


Well Number

Borehole Total Depth (Feet)

Screened Interval (Feet)

Top of Casing Elevation (ft-amsl)

MW-1 114 81-91 418.68 MW-2 117 52-72 417.83 MW-3 113 100-110 409.75 MW-4 111 70-80 414.58

ft-amsl – feet above mean sea level

Monitoring wells were constructed of 2-inch diameter, Schedule 40, flush-joint threaded PVC pipe. The

screened portion of each monitoring well consisted of 0.010-inch factory-slotted PVC with a threaded end

plug (sediment cap). All well screen and blank riser casing was obtained from the same manufacturer and

was pre-cleaned and individually pre-wrapped in plastic so that materials were contaminant-free and

appropriate for collection of analytical samples. No solvents, glues or cements were applied to the casing

joints during construction of the wells. The annular space around the screened interval was packed with

20/40 mesh washed silica sand to a depth of two to three feet above the top of the screened interval. A 2-

to 3-foot-thick bentonite-pellet seal was placed above the sand filter pack. Above the bentonite seal, a

cement-bentonite grout was used to seal the annular space to within one foot below the ground surface.

The PVC casing was cut off approximately six inches below the ground surface (flush mount) for well

completion purposes. A locking, water-tight well plug was placed inside the top of the well casing, and a

traffic-rated well box was set in concrete around the top of the well casing. Procedures for monitoring

well installations are outlined in TETRA TECH SOP No. 6: Installation of Monitoring Wells and

Piezometers presented in the Work Plan.

A minimum of 24 hours elapsed after well construction and before well development to allow for the

bentonite to hydrate and the grout to set. The wells were developed using a submersible pump.

Temperature, pH, specific conductivity, and turbidity were monitored during development. Development

continued until the well produced water with stable field parameter readings (i.e., temperature, pH,

conductivity) and turbidity readings below 10 NTU. At least five casing volumes of water were removed

from the well during development. If the turbidity was not below 10 NTU after 10 casing volumes of

water were removed from the well, then the final turbidity was recorded. General procedures for

monitoring well development are outlined in TETRA TECH SOP No. 7: Monitoring Well Development

in the Work Plan.


2.3.4.1.3 Hydraulic Testing

On July 26 through July 28, 2004, Tetra Tech conducted slug tests in monitoring wells MW-1 through

MW-4 to estimate the lateral hydraulic conductivity of the water-bearing strata. A total of eight slug tests

were completed; one falling head and one rising head test in each monitoring well.

The falling head tests were performed by rapidly submerging a slug of known volume, and then

monitoring the change of water level through time. The rising head tests were performed by rapidly

retracting a slug of known volume then monitoring the change of water level through time.

Slugs were created with 1”x 10’ PVC tubing. The PVC tubing was filled with sand and capped on both

ends. The calculated displacement from the slugs was approximately 4 cubic feet. Two in-situ

transducers, which have both pressure transducer and datalogger capabilities, were used to log and record

the water level displacement during the tests. The transducers recorded data on a logarithmic scale until

the logging frequency reached 3 minutes. At the 3-minute point the logging frequency changed to 3-

minute intervals on a linear scale until the end of the test.

Upon arrival at a test well site, the static water level and total depth of the well was measured with an

electric water level probe. The pressure transducer was secured in the well to a depth of approximately

50 feet. Before starting the test, sufficient time was allowed for the water level in the well to adjust to the

displacement caused by the transducer and cable, and for the transducer to equilibrate to the water

temperature. Next, the slug was lowered to a point just above the water level in the well and then rapidly

submerged to begin the test. The transducer cables were connected to a laptop computer in the field to

allow for real-time examination of the data to monitor trends and progression of the test. Following

completion of the falling head test, the rising head test was performed by rapidly pulling the slug out of

the water and monitoring the water level recovery in the same manner as for the falling head test. In all

tests, the wells recovered to over 95 percent within minutes. The data collected by the datalogger was

stored in the memory of the datalogger and transferred to a computer in the field. The data file was then

imported into a spreadsheet that allowed for graphical presentation and evaluation.

Aqtesolv™, an aquifer and slug test analysis software program, was used to analyze the data collected

from the slug tests. The Hvorslev (1951) method, which is a straight-line solution for a single well slug

test with a partially penetrating well, was used to estimate the hydraulic characteristics of the aquifer.


Rising head data from MW-2 and rising and falling head data from wells MW-3 and MW-4 were

imported into Aqtesolv™ to determine the aquifer hydraulic conductivity (K).

2.3.4.2 Groundwater Use Study and Evaluation

In order to determine if groundwater is currently used in the vicinity of the Site, Tetra Tech conducted a

groundwater use study. The primary goals of the study were to: (1) survey the location and status of

water wells in proximity to the Site to aid in the completion of the groundwater ingestion pathway

evaluated in the Human Health Risk Assessment, and (2) determine whether the 1997 East St. Louis

Groundwater Ordinance (the Ordinance), which prohibits the consumption of groundwater produced from

new water wells, could be used as a robust institutional control in the evaluation of the groundwater

ingestion pathway in the Baseline Risk Assessment. The tasks for the first goal in this study were to:

1) Obtain and review water well records maintained by state agencies such as the Illinois State Water Survey (ISWS), Illinois State Geological Survey (ISGS), and Illinois Public Health Department (IPHD);

2) Review Sanborn Fire Insurance maps of the Site vicinity for evidence of historical water wells;

3) Compile a prioritized list of potential water wells in the Site vicinity based on well age and potential human consumptive use; and

4) Conduct a field survey in the industrial area south of Missouri Avenue to verify the existence and location of listed wells, and inquire about potentially unlisted wells among neighboring locations.

The tasks for the second goal in the study were to:

1) Review and compile the restrictions and responsibilities of the Ordinance;

2) Assess whether local drilling contractors that could install or service wells and pumps were familiar with the Ordinance;

3) Assess compliance with the Ordinance based on agency permits and records, including review of Illinois Public Health Department (IPHD) Applications for Permit to Construct or Deepen a Water Well; and

4) Determine if there has been enforcement activity under the Ordinance.

Details of the study can be found in Technical Memorandum 2: Effectiveness of the City of East St. Louis

Groundwater Ordinance as an Institutional Control and Technical Memorandum 3: Status of Existing

Water Wells (Appendix A).


Water well reports from ISWS and ISGS identified seven active wells within about 2.5 miles of the Site

(Appendix A). Of these, an apparent groundwater monitoring well and an active water well were found

on the Site. The monitoring well was found on the southeast side of the Site. The well appears to no

longer be in use, though the wellhead appears to be in good condition. The active water well was found

on the Upchurch Ready Mix Concrete property at the southeast corner of Missouri Avenue and 29th

Street. According to the owner, Mr. Jim Upchurch, the well is about 20 years old and the water is used to

produce concrete. There is a valve and hose attached to the wellhead so incidental human contact or

ingestion of this water is possible. This well is of particular interest because it was not listed on the ISWS

or any other records, but was found in the field survey. It appears that this well is considered a non-

community well based on its industrial usage. The other five wells found are located more than a mile

from the Site. Appendix A provides ownership information, locations, use, and comments on these seven

wells found within 2.5 miles of the site.

Investigation of the Ordinance revealed that it does exist and was approved by the Illinois Environmental

Protection Agency (IEPA). Interviews with local drilling and well service contractors indicated they did

not provide well installation or pump maintenance services within the Ordinance area, although the

existence of the Ordinance is not well known among these contractors. It is unknown whether the

existing well permitting system would alert such contractors to the Ordinance should their services be

requested. There is no Record of Violation of the Ordinance, although the existence of the Ordinance is

not common knowledge to local or state regulatory agencies that issue water well permits to drillers,

perform inspections of non-community wells, and maintain records of water wells. The City of East St.

Louis Ordinance does not apply to areas of the Site that are in Alorton. The City of Alorton does not have

restrictions on groundwater use. Only the southeast corner of the Site is located within the City of

Alorton limits. This area is upgradient or cross-gradient from the waste materials on Site, as opposed to

the City of East St. Louis, which is located downgradient of the Site.

The groundwater use and evaluation study revealed that there was no demand for potable water supply

wells in the City of East St. Louis and the City’s water supply is provided by surface water, so the

likelihood of future drilling of potable water wells is minimal.

2.3.5 Radiological Investigation

Sixty-two (62) radiological soil samples were collected from surface soils in IBs 1a, 1b, 1c, and 2. These

samples were collected to characterize radionuclides in bauxite residue and fluorogypsum. The locations


of the radiological samples are presented on Figure 2-7. The radiological samples were collected in the

same manner as the surface soil samples. Technical Memorandum No. 7 (Appendix A) presents the Field

Sampling Plan for the radiological investigation.




the laboratory each evening with proper chain-of-custody documentation. The radiological samples were

submitted to Severn Trent Laboratories, Inc. in St. Louis, Missouri for radium-226 analysis by gamma

spectroscopy. Radiological soil sampling results are presented in Section 4.1.4. The radiological results

are presented graphically on Figure 4-4 and in tabular format on Table 4-2. A risk-based evaluation of

the radionuclide data will be provided in the Revised Draft Baseline Human Health Risk Assessment.

2.3.6 Geotechnical Investigation

Eighty-eight (88) geotechnical soil samples were collected from surface and subsurface soils in IBs 1a,

1b, 1c, 2, and 4a. These samples were collected to evaluate the engineering properties of the soils at the

Site. The location of the geotechnical samples are presented on Figure 2-3. The geotechnical sample

collection methodologies were discussed in Section 2.4.1 above. The geotechnical samples were

delivered to Geotechnology, Inc. in St. Louis, Missouri for analysis.

Bulk geotechnical samples were obtained from the core using hand sampling devices and stored in sealed

storage containers. Samples for moisture content were sealed to preserve natural moisture content.

Undisturbed samples were obtained with a thin-walled Shelby tube sampler and were protected during

shipping/transport. If materials were too consolidated to be sampled with the Shelby tube, split spoon

samplers were used. All geotechnical soil samples were transported and preserved (if applicable) in

accordance with ASTM D4220 Preserving/Transporting Soil Samples and TETRA TECH SOP No. 9

presented in the Work Plan.

2.3.7 Agronomic Investigation

One hundred and thirty-nine (139) agronomic soil samples were collected from surface and subsurface

soils in IBs 1a, 1b, 1c, 2, and 4a. These samples were collected to evaluate the agronomic characteristics


of materials on-site and to better understand the soil requirements needed to fully re-vegetate barren areas

of the Site. The agronomic samples were collected from the soil borings on the Site, presented on Figure

2-3. The agronomic samples were collected in plastic bags and delivered to Alvey Laboratory, Inc. in

Belleville, IL for analysis. The samples were analyzed for nitrogen, sulfur, calcium, magnesium, sodium,

potassium, boron, zinc, manganese, copper, iron, phosphorus, nitrate-nitrogen, sulfate, cation exchange

capacity (CEC), exchangeable sodium percent (ESP), pH, water content and bulk density.

Once the initial agronomic analyses were completed, a treatability study was initiated to evaluate

mixtures of the gypsum, residue and organic material that would amend soil pH and sodium absorption

ratios to the ranges suitable for plant growth. The rationale for selection of the sample locations, and

sample frequency is presented in the Technical Memorandum No. 6 (Appendix A). In order to obtain

sufficient volume of residue and gypsum for the treatability study, more samples were collected from the

Site. The second round of agronomic samples were collected using a backhoe to fill fabric “Supersacks”.

The containers were then transported to the laboratory for use in the treatability study. Once the study

was completed, the unused material was transported back to the Site and placed near the area from which

it was obtained.

2.3.8 SPL Investigation and Removal in IB-3c

Initially, nine test pits were excavated in IB-3c using a small backhoe. Twenty-two samples were

collected from the test pits for cyanide analysis. The results of the test pit excavation and sampling were

reported to the USEPA in Technical Memorandum No. 4, included in Appendix A. This technical

memorandum included the sample results and a summary of the field observations. During the test pit

program, the SPL material was sampled and analyzed for total cyanide. The sample collection procedures

and analytical results are provided in Appendix A. An SPL Removal Plan was subsequently submitted

for the area and presented in the Revised Final Spent Potliner Removal Plan (Appendix A). The SPL

Removal occurred between September 5, 2006 and October 6, 2006 and results are presented in the

Completion Report (Appendix A). A supplemental investigation was conducted to characterize

subsurface conditions in the SPL stockpiling area. The investigation consisted of seven soil borings to a

depth of 10 feet each. This investigation was conducted from November 8, 2007 to November 9, 2007

and results are presented in Technical Memorandum 10 (Appendix A).


2.3.9 Phase 2 Ecological Data Collection

Targeted collocated soil/residue and plant tissue and terrestrial invertebrate sampling was performed at 25

sites within IBs 1a, 1b, 1c, 2, and 3b, on October 4th through the 9th, 2004. The locations of these

sampling sites are shown on Figure 2-8 The rationale for selection of the targeted suite of Chemicals of

Potential Ecological Concern (COPECs), site locations, and sample frequency is presented in the Field

Sampling Plan Addendum No. 3 (Appendix A).

In general, the purpose of the Phase 2 investigation was to assess the correlation between the metals

concentrations in soil, plant tissues and invertebrate tissues at the Site and to develop Site-specific

estimates of COPEC concentrations in forage and prey items. The analysis of the data gathered is

presented under separate cover in the ecological risk assessment. A description of the sampling

methodologies for the Phase 2 investigation is provided below.

2.3.9.1 Soil Investigation Methods

Thirty one (31) surface soil samples were collected from the Site as part of the Phase 2 investigation. The

soil samples were collected from the same locations as the plant tissue samples, and were collected using

the same methodologies as the surface soil samples. The samples were submitted to Severn Trent

Laboratories, Inc. (STL) in Burlington, Vermont for analysis. The samples were analyzed for cadmium,

chromium (total and hexavalent), lead, selenium, vanadium, zinc, cyanide, fluoride and pH. Fluoride and

cyanide were analyzed by the same methods used for the soil samples in Phase 1 of the RI. With the

exception of chromium VI, the metals samples were analyzed by USEPA SW-846 Method 6020.

Chromium VI was analyzed by USEPA SW-846 Method 7197. USEPA Method 6020 was used for the

metals in order to provide the detection limits necessary for the plant tissue and invertebrate samples.


2.3.9.2 Plant Tissue Investigation Methods

Samples of above ground plant tissues were collected from within one meter of the soil sampling location.

Plants were clipped at ground level with sharp, stainless steel scissors and prepared for shipment to the

laboratory. An effort was made to collect the plant species most likely to be ingested in the area of the

sampling location. These would likely include forb species (when present) and grasses with seed heads.

If shrubs one meter in height or less were present, several leaves were also collected and included in the

sample. At least 50 grams of vegetation was collected and composited into a plastic bag for shipment to

the laboratory. A general characterization of the sampled plant species was completed during sampling

and is included in Appendix E.

All plant tissue samples were rinsed with deionized water and dried prior to shipment to the laboratory.

The vegetation was washed to remove loosely adhering particles of the soils on the surface due to

windblown materials or splashing from rain. After rinsing, the plant tissue was dried and placed into

clean plastic bags for shipment to the laboratory. The plant tissue samples were analyzed for the same

parameters, by the same methods as the Phase 2 soil samples with the exception of chromium VI, which

was not analyzed.

2.3.9.3 Terrestrial Invertebrate Investigation Methods

Samples of terrestrial invertebrate tissues were collected from the area immediately surrounding the soil

sampling locations. A composite sample of invertebrates was collected within a five-meter radius of the

mapped location. A general characterization of the sampled invertebrate species was completed during

sampling and is included in Appendix E.

Combinations of sampling techniques were utilized in order to collect a large enough mass of tissue for

laboratory analysis (minimum of 45 grams). Vegetation in the area was repeatedly swept in order to

capture invertebrates that inhabit the vegetation. At least 25 sweeps with a standard insect sweep net

were made through the vegetation at each sampling location. A search for soil dwelling invertebrates was

also undertaken at each sampling location with a spade or shovel. A minimum of five small excavations

were made at each sampling location. Each excavation was hand searched and all earthworms or other

soil dwelling invertebrates were collected. Finally, if the two previous search methods did not provide

adequate sample mass, small pitfall traps were installed at the sampling locations for a period of no longer


than 72 hours. Any invertebrates that could be collected by hand were also added to the sample. The

invertebrate tissue samples were analyzed for the same parameters, by the same methods as plant tissue

samples. Due to the limited amount of invertebrate tissue available, the analyses on these samples were

prioritized. The metals were analyzed first, followed by the cyanide and the fluoride. Samples for each

parameter were obtained in each IB, but not all of the samples could be analyzed for all parameters.

2.4 Data Validation

All chemical analytical data for investigation samples were validated in accordance with TETRA TECH

SOP No. 20; developed specifically for this project based on the USEPA National Functional Guidelines

for inorganic and organic data reviews. Data validation was performed by project chemists on 100

percent of the Phase 1 and Phase 2 chemical data. The following data deliverables, as applicable, were

reviewed during the validation process:

• Technical Holding Times;

• Laboratory and Field Blank;

• Surrogate Spikes;

• Matrix Spike/Matrix Spike Duplicates (MS/MSD);

• Laboratory Control Samples/Laboratory Control Sample Duplicates (LCS/LCSD);

• Field Duplicates;

• Trip Blanks;

• Chain of Custody Forms;

• Sample Preservation;

• Laboratory Case Narratives;

• Project Detection Limits;

• Instrument Calibration;

• Initial and Continuing Calibration Verifications; and

• Instrument Performance Measurements.

Data qualifier flags were assigned to individual analytes for specific samples following validation of the

data in accordance with the guidelines specified in the project data validation SOP.


The radiological data obtained during Phase 1 was evaluated using the Data Evaluation Checklists

included in Attachment No. 1-C of the SAP-QAPP for Radiological Characterization of Bauxite Residue

and Gypsum. The radiological data was reviewed by the project chemist for compliance with laboratory

quality control limits. The data review indicates that the analytical results are useable for the project

purposes. The following data deliverables were examined as part of the radiochemical data review:

• Technical Holding Times;

• Reagent Blanks;

• LCS/LCSDs;

• Chain of Custody Forms;

• Laboratory Case Narratives;

• Minimum Detectable Activities;

• Instrument Calibration;

• Instrument Performance Measurements;

• Self-absorption Curves;

• Gamma Library Verification;

• Sample Preparation;

• Peak Energies;

• System Gain;

• Channel drift; and

• Count duration.

The data validation checklists for the analytical data are presented in Appendix F.


3.0 PHYSICAL CHARACTERISTICS OF STUDY AREA

3.1 Site Features

The Site is composed of three bauxite RDAs generated from the alumina extraction processes as well as

other fill materials. These deposits rise over 30 feet above the natural terrain, which is primarily flat

bottomland characteristic of the Mississippi River Valley. The dike at RDA-1 has been breached and a

deeply incised, dendritic drainage pattern has developed in this area. Low lying areas outside of the

RDAs consist of wet areas and uplands with various fill materials present at the surface. The site has

grown over with successional forest in all but the barren areas and the incised areas of the RDAs.

3.2 Soils

The Site is located in a broad alluvial valley that was a former flood plain of the Mississippi River known

as the American Bottoms. Much of the native soils in the City of East St. Louis are part of the

Bottomlands soils group as classified by the University of Illinois Agricultural Experimental Station

(Schicht, 1965). Due to historical flooding and the need to promote development, much of this area has

been built up by filling low-lying areas. Therefore, the majority of the surficial soils present in the City of

East St. Louis today are fill material. The on-site fill material has been found to contain clay, sand,

gravel-sized cinders (from burning coal), limestone fragments, cloth remains and organic material (IEPA,

1997). In addition to the fill material, bauxite residue and gypsum make up the soils at the Site. The

spatial distribution of the on-site soil types are shown in Figure 3-1. The relationship of the bauxite

residue and the gypsum dikes to the underlying, native geology is shown on cross sections A-A’ and B-

B’. Figure 3-2 shows the locations of the cross sections on a plan view map; Figure 3-3 provides the

cross sections. The bauxite residue was initially deposited into low lying areas (e.g., former Pittsburg

Lake) and then later into three mud lakes (RDAs), which were contained by the gypsum dikes.

Review of the cross sections provided in Figure 3-3, indicates that the thickness of the non-native surficial

soils range from 4 feet to 60 feet. The on-site fill material has varies from 9 feet to 25 feet thick. The

thickness of the bauxite residue ranges from less than 4 feet to over 34 feet thick. The gypsum dikes are

built up to a thickness of 49 feet to 60 feet above the prefilling ground surface elevation. The prefilling

ground surface elevation of 410 feet to 416 feet MSL was calculated based on government topographical

mapping (circa 1900).


The surficial bauxite residue generally consists of fine-grained (generally >90% less than 200 sieve

material) red or brown clay/silt material. The material has high moisture content and below the near

surface it is a semi-solid. The bauxite residue is soft, highly plastic and not suitable as a subgrade for

building construction without extensive engineering. The residue has very poor trafficability when wet,

and can be difficult to access without special equipment even in dry conditions. The RDAs have grown

over with vegetation in most areas since the plant ceased operations in the 1950s. Vegetated and un-

vegetated areas of bauxite residue are shown in Figure 3-4. Typically, the surficial material in RDAs 2

and 3 is redder in color and softer than in RDA 1. This may be due to the use of limestone during the

early periods of refining when RDA 1 was created. As a result of the fine-grained nature of the surficial

residue, dusty conditions can occur during dry periods.

The RDA dikes are comprised primarily of gypsum, which was a byproduct from the Acid Plant. The

gypsum is coarse- to fine-grained and semi-consolidated due to cementation. In addition, in some areas,

large (1 to 3 foot diameter) bubble structures have formed.

The remainder of the Site’s surficial soil appears to consist of fill material, but may also contain

admixtures of the bauxite residue and gypsum.

3.3 Geology

The area of the Site is situated in the Till Plains Section of the Central Lowland Physiographic Province

(Schicht, 1965). This province is characterized by low relief formed by glacial till, outwash plains, and

glacial lake plains. Long, low arcuate ridges, formed by recessional moraines are common features in this

province.

The Site is located in an area known as the American Bottoms, which consists of up to 120 feet of

unconsolidated valley fill overlying Mississippian and Pennsylvanian bedrock. The valley fill is

composed of ancestral Mississippi River alluvium, much of which is eroded and reworked glacial

outwash deposits. Generally, there are two recognized unconsolidated formations in the valley fill: (1)

the Cahokia Formation and (2) the underlying Henry Formation. The lower, more permeable portion of

the Cahokia and the Henry Formation make up the American Bottoms Aquifer.

The Cahokia Formation is a floodplain deposit that is typically 30 to 50 feet thick. The upper 15 to 30

feet consist of fine-grained clay and silt materials. The lower part of the formation also contains sand


lenses and the sediments generally coarsen downward. The Henry Formation consists of sand and gravel

glacial outwash deposits that can be up to 120 feet thick. The formation coarsens downward with gravel,

cobbles, and boulders near the base of the formation. The Henry Formation comprises the majority of the

American Bottoms Aquifer (Burlington Environmental, 1992).

3.4 Groundwater

3.4.1 Hydrogeology

The American Bottoms Aquifer is very transmissive and is in hydraulic connection with the Mississippi

River (Schicht, 1965). The aquifer conditions range from unconfined to confined conditions depending

on the stage of the Mississippi River and the thickness of the overlying Cahokia Formation. A

generalized hydrogeologic cross-section from the site to the Mississippi River is depicted in Figure 3-5.

During Site investigations performed by IEPA in 1996, the depth to groundwater in borings advanced into

the fill and upper Cahokia Formation were observed to be between 2 and 20 feet below ground surface

(IEPA, 1999). This indicates that there are perched zones of saturation in the fill material overlying the

Cahokia Formation. Four monitoring wells were installed into the upper portion of the American

Bottoms Aquifer (lower Cahokia Formation) by Burlington Environmental at the Illinois Power Site, and

water levels were measured at approximately 8-9 feet below ground surface (Burlington Environmental,

1992).

Groundwater flow in the American Bottoms Aquifer is generally westward toward the Mississippi River;

however, localized flow within the aquifer has historically been modified by industrial groundwater use.

A regional potentiometric surface map for the City of East St. Louis and vicinity area was generated as

part of an unpublished report by the Illinois State Water Survey (Figure 3-6), which indicates a west-

northwesterly groundwater gradient in the vicinity of the Site (ISWS, 1995). Water level data obtained

during the RI confirm this finding and exhibit comparable flow directions.

The elevations of the American Bottoms potentiometric surface across the North Alcoa Site range from

401 to 406 feet. The elevations of the American Bottoms potentiometric surface in the North Wet Area

range from 402 feet MSL to 404 feet MSL, according to Figure 3-7. Elevations of surface water in this

area are about 410 feet MSL (Figure 2-4) which is higher than the potentiometric surface in the American


Bottoms aquifer. Therefore, groundwater in the American Bottoms Aquifer does not discharge to on-Site

surface water.

Aquifer (slug) tests were performed on the wells installed during the RI and analyzed using the Hvorslev

(1951) method. The results of the slug tests are found in Table 3-1 and Appendix G. These data indicate

that the hydraulic conductivity values ranged from 6.38 x 10-3 cm/s to 2.08 x 10-2 centimeters per second

(cm/s).

3.4.2 Groundwater Use

The Illinois-American Water Company (IAWC) currently provides water to the City of East St. Louis

from the Mississippi River. Groundwater is not used as the drinking water supply for the City. In

addition, the City passed an ordinance prohibiting the consumption of groundwater and installation of

new potable water wells in 1997.

Historically, the groundwater pumped from the American Bottoms Aquifer was used primarily for

industrial purposes (Schicht, 1965). A decline in industrial activity in the City of East St. Louis in the last

few decades has diminished use of groundwater. A preliminary assessment of the current status of water

wells in the vicinity of the Site indicated there were 46 wells located within a 1-mile radius of the Site.

Information from the databases for these wells is listed in Table 3-2. Most of these wells were installed in

the 1930s and 1940s for industrial and commercial uses. A limited field investigation was performed to

locate and confirm the status of the wells listed in Table 3-2. Only a few of the wells in the database

remain, and none are used for potable water supplies.

As a part of the groundwater investigation (Section 2.3.4.3), a water well survey was performed to further

characterize groundwater use down gradient of the Site. The results of the survey revealed one additional

existing well in the vicinity of the Site. This well is located at the Upchurch property, on the

northwestern corner of the Site. Technical Memorandum No. 3 (Appendix A) summarizes the results of

the well survey.


3.5 Surface Water and Hydrology

The Site lies within the historical floodplain of the Mississippi River, and the topography consists of

nearly level bottomland. Historically, the City of East St. Louis and the Site vicinity have been filled in

to elevate the area above the floodplain (IEPA, 1997; IEPA, 1999). Drainage in the area generally flows

toward the Mississippi River; however, no well-defined surface water drainage pathways have been

identified emanating from the North Alcoa Site.

The major surface water feature in the region is the Mississippi River, which is located approximately

three miles west of the Site. There are no significant surface water features between the Site and the

river; however, to the east of the Site is Frank Holten State Park, which contains several large recreational

lakes in the area previously, referred to as Pittsburg Lake. Although these lakes drain to the south to the

Harding Ditch and the Prairie Dupont Floodway, they are not hydraulically connected to the Site via

surface water pathways. This was confirmed during an inspection of the Site by Tetra Tech and Alcoa on

January 22, 2003, and by the topographic map developed during the RI.

Ephemeral and perennial surface water drainages and ponds occur on the Site. Within the RDAs,

perennial ponds occur in IB-1a and IB-1b. An ephemeral pond occurs in the center of IB-1c during wet

periods. A perennial pond occurs in the eastern end of the drainage pond south of Lake Boulevard. Small

ponds occur elsewhere on Site, and most fluctuate significantly in response to precipitation patterns. No

storm drains or sewers collect and channel surface water from the Site. Additionally, review of

topographic maps of the Site along with extensive site walks of the property, revealed topographic

depressions onsite, but no surface water discharges from the Site.

3.6 Climate and Meteorology

The Site is located in the City of East St. Louis, in the center of the United States, near the confluence of

the Missouri and Mississippi Rivers. The mid-continental location of the area provides a climate that is

subject to large fluctuations without the buffering of a large water body nearby. Cold air migrating down

from Canada meets the warm, moist air of the south, and the Gulf of Mexico. The result is a highly

variable climate with cold, sometimes freezing, temperatures in the winter and hot weather in the summer.

Weather changes from day to day are common as a result of the cold and warm air masses that move in

and out of the area.


With this high variability comes frequent direct contact between the cold dry air masses of the north and

the warm moist air masses of the south. These interactions can spawn violent weather including

thunderstorms and tornadoes on occasion. However, the constant changing nature of the weather in the

area also reduces the occurrence of extremes in temperature. Temperatures below zero average one to

two days per year and similarly temperatures above 100 degrees are expected no more than 5 days a year.

Precipitation for the area averages about 37 inches; however, the driest season is the winter, with only

18% of the annual precipitation occurring in December, January, and February. The wettest period of the

year is from March through July when 50% of the annual precipitation falls in this 5-month period.

Annual snowfall averages about 20 inches.

Figure 3-8 is a wind rose from data collected at nearby Lambert Airport between 1987 and 1991. The

plot shows the frequency of winds from different directions as a series of projections from the center of

the figure. The relative length of each projection is representative of the frequency of winds coming from

that direction. Speeds are shown using different shading patterns.

As the figure shows, there are two major wind patterns for the area. During the cooler months of the year

from November through April, the prevailing wind direction is from the west-northwest. These winds are

frequently caused by large low-pressure systems located in south-central Canada that transport winds

from northwest to southeast in much of the mid-continent. Wind speeds are strongest during this time of

year, averaging between 10 and 12 knots. The other pattern occurs during the warmer months from May

through October, when the prevailing wind direction is from the south. These winds are caused by high-

pressure systems located in the Gulf of Mexico that create gradient flow from south to north. The wind

speeds associated with this pattern are typically lower, averaging from 7-9 knots. It is the interaction and

competition between these two major weather systems that produces the violent and changing weather

discussed above. However, as the wind rose shows, all wind directions occur from time to time in the

area.

3.7 Demography and Land Use

Regional land use in the vicinity of the Site includes residential and other urban uses, industrial and

commercial uses, and parks. As indicated on Figure 3-9, the property to the north and east of the Site is

mapped as residential or urban land use. The area southwest of the Site, and south of Missouri Avenue, is

mapped as industrial land use. Frank Holten State Park occurs within the transitional area east of the Site.


The land use within the Site is primarily industrial/commercial. A detailed site ownership map, obtained

from the county tax assessor’s office, is provided in Figure 3-10. Much of the Site is used for storage of

bauxite residue and gypsum, and is owned by the City of East St. Louis. Alton & Southern Railroad

owns rail spurs along the eastern boundary of the site, as well as inactive right-of-ways south and west of

the RDAs. Active industrial/commercial operations occur on the following parcels:

Owner Industrial Activity

Koppers Industries, Inc. Light rail recycling facility

Burrous Formerly a government fluorospar stockpile (depleted during the course of this project)

Upgrade Construction Alorton Brick (resale of bricks)

Estate of C. Carron Metro East Recycling Center (status uncertain, Mr. Carron deceased in 2004)

Upchurch Upchurch Redi Mix Company

Bistates Trucking (formerly Illinois Power)

Trucking facility

Smith Hamel Construction Company

The remaining properties do not appear to be in use at the current time. Some of the inactive properties

have been considered for redevelopment by various entities. Notably, a large area between the bauxite

residue impoundments and Missouri Avenue was the subject of a CERCLA redevelopment study funded

by USEPA and conducted by IEPA (IEPA, 1999).

Recreational uses occur within the Site on the Jackie Robinson ball fields in the northwest corner of the

Site, owned by Alton & Southern Railroad (Figure 3-10).

3.8 Ecology

The Site is dominated by a number of volunteer plant communities that have become naturally established

since the cessation of Alcoa’s industrial activities in the 1950s. A majority of the Site is currently

vegetated by these communities and is found in varying degrees of natural succession. Only the gypsum

dike areas and several areas on each of the three RDAs lack an established vegetative community (Figure

3-4).


Successional upland forests dominate in the boundary areas outside of the RDA impoundments. These

forests are early to mid-successional woodlots interspersed with dense shrub/scrub habitat and old-field

successional areas. Also interspersed are multiple small areas of emergent wetland vegetation.

According to a biological survey conducted at the Site in 1999 (Zambrana Inc., 1999), the vegetative

community in the woodlots consists mainly of Siberian elm (Ulnus pumila), sycamore (Plantanus

occidentalis), and cottonwood (Populous deltoides). The shrub layer is dominated by bush honeysuckle

(Lonicera maackii), tall goldenrod (Solidago altissima), spiderwort (Tradescantia ohioensis) and Queen

Anne’s Lace (Daucus carota). Within the more mesic areas of the Site, emergent species such as the

common reed (Phragmites communis) and soft-stem bulrush (Scripus validus) are found in dense stands.

On the RDA impoundments, a mixture of emergent wet vegetation and, in the more xeric portions,

successional old-field communities dominate. Both RDA 2 and RDA 3 are bordered by a ring of mature

sycamore trees and tree-of-heaven (Ailanthus altissima) while RDA 1 is primarily vegetated by a shrubby

mosaic of small woody species on the bare ground.

No state or federal species of special concern were identified in the 1999 biological report (Zambrana Inc.

1999) as having more than a low potential for on-site use. A thorough discussion of the ecology and

potential wildlife species that may inhabit the Site is presented under separate cover in the Ecological risk

Assessment.


4.0 NATURE AND EXTENT OF CONTAMINATION

This section presents a summary of the results of the samples collected from the Site during the RI. The

data are summarized in tables and on figures as well as in data summaries embedded in the following

subsections. The data summaries include the number of times each constituent was detected in each IB,

the average detection and the maximum detection. Data are categorized by the media sampled, the

sample depth and by the IB in which they were collected. For the purpose of this discussion, the subareas

within each IB have been combined, although pertinent results in some subareas have been extracted and

reported separately. The concentrations of the constituents detected in the samples are compared to

human health or ecologically based criteria in the companion risk assessments. As requested by the

agency, Regional Screening Levels (RSLs) used to identify COPCs in the BHHRA are provided in the

summary tables for soil provided within the Section 4.0 text. For more detailed information, the reader is

referred to the human health screening criteria listed in Tables 2-1 through Tables 2-16 and Tables 2-18

through 2-23 of the BHHRA. Ecological screening criteria are listed in Tables 2-2 through 2-4 and Table

3-12 of the BERA.

The following sections present the results of the samples by medium (e.g., surface soil, subsurface soil,

surface water, sediment groundwater, etc.). Each section is further divided into subsections that present

the sample results by analytical suite (e.g., metals, VOCs, SVOCs, etc.).

4.1 Surface Soil

For the purpose of the BHHRA, surface soil samples are defined as those samples collected within the 0-2

foot bgs depth interval. The surface soil samples are used in the risk assessment for exposure pathways

that involve contact with soil in the absence of excavation activities. The RI included the collection of

137 surface soil samples from the Site. Fifty-six surface soil samples were collected in IB-1, 18 were

collected in IB-2, 40 were collected in IB-3 and 23 were collected in IB-4. The laboratory reported eight

additional surface soil samples or specific analytical suites, which were subsequently removed from the

data set because the analyses were not requested, or multiple results were reported for one sample

location. Most of these samples were either duplicated due to shipping or laboratory errors, or were

analyzed for parameters not specified in the SAP. The results of these samples were provided to the

USEPA, but are not included in the data summaries that follow. Table 4-1 presents a summary of the


detected compounds in surface soils at the Site. The following subsections present a summary of the

results of the surface soil samples.

4.1.1 Metals

All 137 of the surface soil samples collected from the Site were analyzed for metals and metalloids.

Aluminum, antimony, arsenic, barium, cadmium, chromium, cobalt, copper, lead, manganese, mercury,

nickel, selenium, silver, thallium, vanadium, and zinc were detected in the Site surface soil samples.

Figures 4-1a through 4-1e provides the locations of the surface soil samples and the metals results for

each sample that exceeds their respective Industrial EPA Regional Screening Levels (RSLs). The list of

detected metals was consistent from one IB to another; however, in general, the concentrations of metals

in IB-2 are lower than those detected in the other IBs. Additionally, the metals in IB-1 tend to be slightly

higher than in the other IBs. The observed concentrations are consistent with the expected results given

the materials deposited in each IB. The following table provides a summary of the metals detected in the

surface soil samples collected in each IB.

Range of Metals Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Metals (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) No. Avg. Max No. Avg. Max No. Avg Max No. Avg. Max

Aluminum 99,000 56 62370 127,000 18 7513 61,100 40 34815 96,400 23 68397 135,000Antimony 410 38 3.74 9.46 4 3.06 4.62 18 2.76 11 13 1.96 5.16 Arsenic 1.6 56 23.7 76.2 9 11.9 43.7 40 14.1 31.8 23 22 48.5 Barium 19,000 56 101 794 18 129 292 40 157 404 23 155 578 Cadmium 810 39 4 23.7 17 0.98 7.25 34 3.19 29.4 16 1.86 8.29 Chromium 1400 56 479 1,100 18 34.4 306 40 166 978 23 57.3 138 Cobalt 30 52 2 12.8 6 1.14 2.69 40 4.86 9.79 23 3.13 9.91 Copper 4100 56 14 41.7 18 12.7 138 40 59.1 738 23 23.6 84.8 Lead 1000 56 143 1,290 18 690 1,230 40 274 2,330 23 113 1,050 Manganese 2300 56 328 1,480 18 37.5 259 40 290 607 23 671 2,110 Mercury 31 56 0.293 0.91 18 0.21 0.657 40 0.263 1.53 23 0.198 0.688 Nickel 2000 56 7.37 23.2 15 3.21 25 40 17.1 65.1 23 12.5 60.9 Selenium 510 20 5.44 16 3 3.12 3.58 20 1.75 6.55 14 2.93 15.3 Silver 510 37 1.85 3.23 12 0.32 0.597 23 0.978 2.74 6 1.41 2.95 Thallium 8.2 28 5.82 19.8 1 10.4 10.4 20 2.97 8.79 13 3.76 7.3 Vanadium 520 56 637 1,220 17 91.3 950 40 174 813 23 147 419 Zinc 31000 53 49 227 18 73 370 40 198 701 23 152 1,210

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance.


4.1.1.1 IB-1 – Residue Disposal Areas

Fifty-six surface soil samples were collected in IB-1. Due to the similarities of the materials, all of the

RDAs in IB-1 were combined in the summary. Aluminum was present in higher concentrations than any

of the other detected metals. Given that the residue in IB-1 is residual material from the alumina

extraction process, aluminum was expected to dominate the metals present in the residue. Arsenic,

barium, chromium, copper, lead, manganese, nickel and vanadium were also detected in all of the surface

soil samples collected in IB-1. Additionally, cobalt, mercury and zinc were detected in relatively low

concentrations in nearly all of the surface soil samples collected in IB-1. The human health and

ecological risk assessments further assess the significance of the metals detected in surface soil in IB-1.

Evaluation of the surface soil data for each of the three IB-1 areas indicates that the range of detected

concentrations of aluminum, lead and zinc are similar in each of the three IB-1 subareas. Lead appears to

have high outlying concentrations in borings 1aUP016 and 1cUP020. Review of the boring logs for these

borings indicates that gypsum dike material is present throughout the entire depth of 1aUP016 and from

the surface to 4 feet deep in 1cUP020. These materials are more consistent with those found in IB-2, and

are located immediately adjacent to IB-2 areas.

4.1.1.2 IB-2 – Gypsum Dike Areas

Eighteen surface soil samples were collected in IB-2. Aluminum was detected in all 18 samples collected

in IB-2; however, the range of detections is significantly lower than in IBs 1, 3, and 4. Barium,

chromium, copper, lead, manganese, mercury, and zinc were detected in all of the surface soil samples

collected in IB-2. Additionally, cadmium, nickel and vanadium were detected in nearly all of the surface

soil samples collected in IB-2. As mentioned above, the concentrations of metals detected in IB-2 tend to

be somewhat lower than in IB-1. The table in Section 4.1.1 provides the range of detections for each

metal. The human health and ecological risk assessments will further assess the significance of the metals

detected in surface soil in IB-2.


4.1.1.3 IB-3 – Other Areas of Alcoa Activities

Forty surface soil samples were collected in IB-3. Surface soil samples were collected from IBs 3a and

3b. The subareas in IB-3 were combined for the purpose of summarizing the data. Aluminum was

present in all 40 of the surface soil samples collected in IB-3. The range of detections was lower than in

IBs 1 and 4, but higher than in IB-2. Arsenic, barium, chromium, cobalt, copper, lead, manganese,

mercury, nickel, vanadium and zinc were also detected in all of the samples collected in IB-3. With the

exception of zinc, these metals were detected in concentrations similar to or lower than those in IB-1.

Zinc was detected in concentrations that were somewhat higher than in the surface soil samples collected

in IB-1. Cadmium was detected in 34 of the 40 samples collected in IB-3 in concentrations similar to

those observed in IB-1. The table in Section 4.1.1 provides the range of detections for each metal. The

human health and ecological risk assessments will further assess the significance of the metals detected in

surface soil in IB-3.

Further evaluation of the surface soil samples in each subarea indicated that arsenic, chromium, lead,

selenium, thallium, vanadium and zinc were present in similar concentrations in each area. Cadmium

appears to be higher in subarea 3a than in subarea 3b. There is no clear reason for the difference in the

cadmium concentrations between the two subareas.

4.1.1.4 IB-4 – Areas with No Known Alcoa Activities

Twenty-three surface soil samples were collected in IB-4. The surface soil samples were collected from

IB-4a and IB-4c. The IB-4 areas were combined for the data summary presented above; however,

because IB-4c is actively used as a recreational area, the areas were considered separately in the human

health risk assessment. Aluminum, antimony, arsenic, barium, cadmium, chromium, cobalt, copper, lead,

manganese, mercury, nickel, selenium, silver, thallium, vanadium, and zinc were detected in the surface

soil samples collected in IB-4. The human health and ecological risk assessments will further evaluate

the significance of the metals detected in surface soil in IB-4.


4.1.2 Fluoride, Cyanide and pH

Soil pH, fluoride and total cyanide were analyzed in all of the surface soil samples collected at the Site.

Figure 4-2 presents the results of the pH, fluoride and cyanide analyses on the Site map. A summary of

the detections for each of these parameters is presented in the following table.

Range of Detections RSL(1) IB-1 IB-2 IB-3 IB-4 Wet

Chemistry (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) No. Avg. Max No. Avg. Max No. Avg. Max No. Avg. Max

pH (s.u.) -- 56 8.35 12 18 5.59 7.6 40 6.45 12.5 23 4.86 11.8 Fluoride 6100(a) 56 55.7 419 18 49 156 40 42.1 244 23 45.9 171

Cyanide 2000(b) 23 4.65 29.4 4 9.1 21.4 11 1.23 6.4 8 1.31 5.6

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. (a) RSL for Fluorine, which is soluble form of Fluoride, and form on which RfD is based. (b) RSL for free Cyanide conservatively used for total cyanide.

The pH of the surface soil in IB-1 ranged from 7.3 to 12.0. IB-3 and IB-4 showed similar pH ranges,

except the low end of the pH range and the average pH were lower than in IB-1. The pH of the surface

soil in IB-2 was closer to neutral with a pH range from 4.6 to 7.6. Given that the alumina was extracted

in a caustic process and the gypsum material in IB-2 was produced in an acidic process, the pH results

appear to be consistent with the residues deposited in each of the areas.

Fluoride was detected in all of the surface soil samples collected at the Site. The fluoride concentrations

in IB-1 were higher than the concentrations in the other IBs. IB-2 had the lowest maximum concentration

of the IBs. The fluoride at the Site was processed in the Acid Plants, which produced the gypsum

deposited in IB-2. It appears that fluoride was not a significant component of the Acid Plant waste stream

(gypsum) since the highest concentrations in the surface soils occurred in IBs 4a, 1b, 3b, and 1c in

ascending order of concentration. None of the fluoride concentrations exceeded the human health

screening value, and it was not identified as a human health COI in surface soil. The ecological risk

assessment screening identified fluoride as a COI in surface soil in all IBs. As a result, fluoride was

further evaluated in the Phase 2 RI. The results of the Phase 2 investigation are presented in Section 4.8

below.

Cyanide was detected in approximately one-third of the surface soil samples collected at the Site. The

detected cyanide concentrations ranged from 0.24 milligrams per kilogram (mg/kg) to 29.4 mg/kg.

Cyanide was detected less frequently in IB-2 than in the other IBs; however, the detection limit was


elevated. The frequency of cyanide detection was highest in IB-1 and the majority of the detected

concentrations exceeding 10 mg/kg were also in IB-1. None of the cyanide concentrations exceeded the

human health screening value, and it was not identified as a COI in surface soil. The ecological risk

assessment screening identified cyanide as a COI in surface soil in all IBs. As a result, cyanide was

further evaluated in the Phase 2 RI. The results of the Phase 2 investigation are presented in Section 4.8

below.

4.1.3 Organics

Seventeen surface soil samples collected at the Site were analyzed for organics. Of the samples selected

for organics analysis, all were analyzed for volatile organic compounds (VOCs). Figure 4-3 presents the

results of the VOCs that exceed their respective Industrial EPA RSLs on the Site map. The following

table presents the frequency of detection for the VOCs in surface soil samples.

Range of VOC Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) No. Avg Max No. Avg Max No. Avg Max No. Avg Max

Benzene 1.1 1 2 2 ND ND ND Ethylbenzene 5.7 1 2 2 ND ND ND Toluene 500 1 9 9 ND ND ND Xylene 60 1 9 9 ND ND 3 3 5 Acetone 6100 ND ND 1 25 25 ND Carbon Disulfide

67 ND ND 1 1 1 ND

MTBE -- 1 24 24 ND ND ND Methylene Chloride

11 ND ND 4 10 16 2 4.5 6

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. ND indicated not detected.

VOCs were detected infrequently in IBs 1, 3 and 4. No VOCs were detected in IB-2. Benzene,

methylbenzene, toluene xylem and methyl-tart-butyl ether (MTBE) were detected in one sample each in

IB-1. Acetone, carbon disulfide and ethylene chloride were detected in samples collected in IB-3.

Xylene and ethylene chloride were detected in IB-4. The concentrations of the VOCs detected in the

surface soil samples were below the regional screening level, and the VOCs are not COPCs in surface

soils for human or ecological receptors.


Seventeen surface soil samples were analyzed for semi volatile organic compounds (SVOCs). Figure 4-3

presents the results of the SVOCs on the Site map. The following table presents a summary of the SVOC

results for each IB.

Range of SVOC Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) No. Avg. Max No. Avg. Max No. Avg. Max No. Avg. Max1,1’ Biphenyl 5100 ND ND 1 75 75 ND 2,4,5-Trichlorophenol 6200 ND ND 1 45 45 ND 2-Methylnaphthalene 410 ND ND 20 1963 9,200 ND Benzylaldehyde 10000 ND ND 1 47 47 ND Bis(2-ethylhexyl)phthalate

120 4 415 660 1 140 140 2 140 150 2 149 200

Carbazole -- ND ND 2 535 970 ND Dibenzofuran -- ND ND 2 350 370 ND

PAHs Acenaphthene 3300 ND ND 30 1464 7,400 ND Acenaphthylene 3300(a) ND ND 17 934 4,000 ND Anthracene 17000 ND ND 38 197 1,800 ND Benzo(a)anthracene 2.1 ND ND 39 700 7,100 ND Benzo(a)pyrene 0.21 ND ND 39 763 8,900 ND Benzo(b)fluoranthene 2.1 ND ND 39 660 6,600 ND Benzo(k)fluoranthene 21 ND ND 39 362 3,500 ND Benzo(g,h,i)perylene 1700 ND ND 39 1085 14,000 ND Chrysene 210 ND ND 39 680 7,100 ND Dibenz(a,h)anthracene 0.21 ND ND 29 107 1,200 ND Fluoranthene 2200 ND ND 39 1517 16,000 ND Fluorene 2200 ND ND 29 123 520 ND Indeno(1,2,3-cd)pyrene 2.1 ND ND 39 672 8,900 ND Naphthalene 20 ND ND 2 445 500 ND Phenanthrene 1700 ND ND 39 1025 8,100 ND Pyrene 1700 ND ND 39 1474 15,000 ND

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. (a) RSL for surrogate chemical Acenaphthene. (b) RSL for pyrene, which is commonly applied as a surrogate chemical for noncarcinogenic PAHs. ND indicated not detected.

In general, the data showed sporadic detections of some SVOCs in the surface soil. Bis(2-ethylhexyl)

phthalate was detected in all of the IBs. 1,1-Biphenyl, 2,4,5-trichlorobenzene, 2-methylnaphthalene,

benzylaldehyde, carbazole and dibenzofuran were detected infrequently in IB-3 only.

The polynuclear aromatic hydrocarbons (PAHs) were detected more frequently than the other SVOCs.

As the above table shows, PAHs were detected only in IB-3. The human health and ecological risk

assessments will discuss the relevance of the detections, however, given the concentrations, only


benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene dibenz(a,h)anthrecene and indeno(1,2,3-

cd)pyrene in IB-3 were identified as COPCs for human health (i.e., concentrations exceeded the regional

screening levels). The ecological screening did not identify SVOCs as COIs.

PCBs were analyzed in 17 surface soil samples collected at the Site. The surface soil sample results

showed PCB Aroclors 1254 and 1260 present on the Site. The following table presents a summary of the

PCB detections in surface soils at the Site.

Range of PCB Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) No. Avg Max No. Avg Max No. Avg Max No. Avg MaxPCB-1254 0.74 1 13 13 1 71 71 2 22 32 ND PCB-1260 0.74 2 11 12 ND 2 41.5 61 1 7.8 7.8

ND indicated not detected.

The observed PCB concentrations are well below any screening value, and PCB is therefore not

considered to be a COPC for human or ecological receptors on the Site.

4.1.4 Radiological Analyses

Sixty-two surface soil samples, including two duplicates, were collected from the residue in IB-1a, IB-1b,

IB-1c and IB-2 for radiological analyses. The radiological samples were submitted to Severn Trent

Laboratories, Inc. in St. Louis, Missouri for radium-226 analysis by gamma spectroscopy. Radium-226

was detected in 46 of the 62 samples in concentrations ranging from 0.19 picocuries per gram (pCi/g) to

9.7 pCi/g. The radiological results are presented graphically on Figure 4-4 and in tabular format on Table

4-2. As discussed in TM 7, these data are compared to the criteria of 10 pCi/g for unrestricted use of

phosphogypsum found at 40 CRF 61 Subpart R. None of the samples exceeded this criterion.

The laboratory reported concentrations of Lead-210, Potassium-40, Radium-226, Radium-228, and

Uranium-238 that exceeded the USEPA Preliminary Remediation Goals (PRGs) for residential soil.

Lead-210 was detected in 2 samples in concentrations ranging from 6 picocuries per gram (pCi/g) to 11.0

pCi/g. Potassium-40 was detected in all samples analyzed in concentrations ranging from 0.79 picocuries

per gram (pCi/g) to 11.4 pCi/g. Radium-228 was detected in 38 samples in concentrations ranging from

0.64 picocuries per gram (pCi/g) to 40.0 pCi/g. Uranium-238 was detected in 23 samples in

concentrations ranging from 0.56 picocuries per gram (pCi/g) to 28.3 pCi/g. Figure 4-4 illustrates the


results from the radiological investigation for Total Radium (Radium-226 and Radium-228). These

results are discussed further in the BHHRA. The PRGs are qualitative cleanup levels for residential soil,

and were used to determine nature and extent of contamination based on the results of the RI. Site-

specific data should be calculated to evaluate remedial options for soils exceeding the PRG in this

industrial soil application.

4.2 Subsurface Soil

For the purpose of the BHHRA, subsurface soil samples are defined as samples collected in the depth

interval from two to ten feet below the ground surface. The subsurface soil samples are used in the risk

assessment for exposure pathways that involve contact with soil during excavation activities that may

allow exposure to the receptors considered. The RI included the collection of 137 subsurface soil samples

from the Site. Sixty-one subsurface soil samples were collected in IB-1, 11 were collected in IB-2, 43

were collected in IB-3 and 22 were collected in IB-4. The laboratory reported seven additional surface

soil samples or specific analytical suites, which were subsequently removed from the data set for various

reasons. Most of these samples were either duplicated due to shipping or laboratory errors, or were

analyzed for parameters not called for in the SAP. The results of these samples were provided to the

USEPA, but were not included in the data summaries that follow. Table 4-3 presents a summary of the

detected compounds in subsurface soils. Figure 4-5 presents the locations of the subsurface soil samples

on a plan view map. Section 3.2 contains an expanded discussion of waste material thicknesses as

derived from the cross sections in Figure 3-3. The following sections present a summary of the results of

the subsurface soil samples.

4.2.1 Metals


nickel, selenium, silver, thallium, vanadium and zinc were detected in the subsurface soil samples

collected on the Site. Figure 4-5 provides the locations of the surface soil samples and the metals results

for each sample. The list of detected metals was consistent from one IB to another; however, as with the

surface soil samples, in general, the concentrations of metals in IB-2 are lower than the metals detected in

the other IBs. Additionally, the metals in IB-1 tend to be slightly higher than in the other IBs. With

regard to comparison of the surface and subsurface soil results, the metals detected in IBs 1 and 2 tend to

be similar to slightly higher in the deeper intervals than in the shallower intervals; however, the nature of


the material appears to be the same throughout. A comparison of the surface and subsurface soils in IBs 3

and 4 shows that metals concentrations in the shallower interval tend to be higher than in the deeper

interval. The following table provides a summary of the metals detected in the subsurface soil samples.

Range of Metals Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Metals (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) No. Avg. Max No. Avg. Max No. Avg. Max No. Avg. Max

Aluminum 99,000 61 64,868 96,200 11 9665 32,200 43 37,944 98,400 22 66,871 109,000Antimony 410 35 4.2 31.4 1 4.07 4.07 10 1.76 3.41 8 1.85 3.58 Arsenic 1.6 60 32.8 170 9 13 66.7 42 14 73.5 22 25 60.4 Barium 19,000 61 116 274 11 125 273 43 178 294 22 155 354 Cadmium 810 40 1.63 9.52 7 0.484 1.61 33 1.33 5.58 13 0.595 1.45 Chromium 1400 61 361 947 11 14.6 42.6 43 82.3 445 22 64.1 128 Cobalt 30 57 2.52 48.2 8 3.56 14.5 42 4.99 13.4 22 3.16 10.1 Copper 4100 61 19 243 11 11.4 33.4 43 27.1 190 22 9.76 29.5 Lead 1000(a) 61 103 1,280 11 603 2,250 43 116 612 22 83.9 335

Manganese 2300 61 435 2,380 11 263 1,660 43 381 2,050 22 440 1,960 Mercury 31 60 0.315 0.757 11 0.129 0.61 43 0.159 0.935 21 0.315 2 Nickel 2000 61 7.66 52.1 10 8.37 35.6 43 15.8 36.3 22 8.33 28.6 Selenium 510 38 7.8 181 3 5.22 13.3 14 2.04 5.09 10 2.56 12.5 Silver 510 41 2.44 7.52 4 0.482 0.819 17 1.16 3.61 8 1.75 3.88 Thallium 8.2 34 10.2 195 4 3.08 7.09 28 2.18 4.74 11 2.34 3.22 Vanadium 520 61 531 1,190 11 50.3 326 43 109 412 22 165 304 Zinc 31000 60 21 88.7 11 35.3 92.5 43 118 1,140 22 44.2 158

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. (a) EPA Region 5 industrial screening value for lead; residential screening level is 400 mg/kg.

The following subsections provide a summary of the constituents detected for each IB and comparative

evaluations of the data between the subareas in each IB.

4.2.1.1 IB-1 – Residue Disposal Areas

Sixty-one subsurface soil samples were collected in IB-1. Due to the similarities of the materials, all of

the RDAs in IB-1 were combined in the summary. Aluminum was present in higher concentrations than

any of the other detected metals. Given that the residue in IB-1 is residual material from the alumina

extraction process, aluminum was expected to dominate the metals present in the residue. Barium,

chromium, copper, lead, manganese, nickel and vanadium were also detected in all of the subsurface soil

samples collected in IB-1. Additionally, arsenic, cobalt, mercury and zinc were detected in nearly all of


the subsurface soil samples collected in IB-1. The human health risk assessment will further assess the

significance of the metals detected in subsurface soil in IB-1.

Evaluation of the subsurface soil data for each of the three IB-1 areas indicates that the range of detected

concentrations of aluminum, arsenic, lead, vanadium and zinc are similar in each of the three IB-1

subareas. Lead appears to have a high outlying concentration in boring 1aUP016 relative to the

remainder of the IB-1 subsurface soil data set. Review of the boring log for this boring indicates that

gypsum dike material is present throughout the entire depth. This material is more consistent with that

found in IB-2, and is located immediately adjacent to IB-2 in the southwestern corner of IB-1a.

Chromium and thallium appear to be similar in 1a and 1b, and somewhat higher in IB-1c. Manganese

concentrations appeared somewhat higher in IB 1b as compared to 1a and 1c.

4.2.1.2 IB-2 – Gypsum Dike Areas

Eleven subsurface soil samples were collected in IB-2. Aluminum was detected in all 11 subsurface soil

samples collected in IB-2; however, the range of detections is significantly lower than in IBs 1, 3, and 4.

Barium, chromium, copper, lead, manganese, mercury, vanadium and zinc were detected in all of the

subsurface soil samples collected in IB-2. Additionally, arsenic, cobalt, cadmium and nickel were

detected in nearly all of the subsurface soil samples collected in IB-2. The occurrence of these

constituents is similar to that of the surface soil samples. As mentioned above, the concentrations of

metals detected in IB-2 tend to be somewhat lower than in IB-1. The table in Section 4.2.1 provides the

range of detections for each metal. The human health risk assessment will further evaluate the

significance of the metals detected in subsurface soil in IB-2.

4.2.1.3 IB-3 – Other Areas of Alcoa Activities

Forty-three subsurface soil samples were collected in IB-3. Subsurface soil samples were collected from

both IBs 3a and 3b. The subareas in IB-3 were combined for the purpose of summarizing the data.

Aluminum was present in all 43 of the subsurface soil samples collected in IB-3. The range of detections

was similar to that in IB-1 and lower than in IB-4. Arsenic, barium, chromium, copper, lead, manganese,

mercury, nickel, vanadium and zinc were also detected in all of the samples collected in IB-3. Most of

the metals were detected in concentrations similar to or lower than those in IB-1. Cadmium and cobalt

were detected in nearly all of the IB-3 samples in concentrations similar to those observed in IB-1. The


table in Section 4.2.1 provides a summary of the results for each metal. The human health and risk

assessment will further evaluate the significance of the metals detected in subsurface soil in IB-3.

4.2.1.4 IB-4 – Areas with No Known Alcoa Activities

Twenty-two subsurface soil samples were collected in IB-4. The subsurface soil samples were collected

from both IB-4a and IB-4e. The IB-4 areas were combined for the data summary presented above.

Aluminum, arsenic, barium, chromium, cobalt, copper, lead, manganese, nickel, vanadium and zinc were

detected in the all of the subsurface soil samples collected in IB-4. Mercury was detected in 21 of the 22

samples collected. The human health and risk assessment will further evaluate the significance of the

metals detected in subsurface soil in IB-4.

4.2.2 Fluoride, Cyanide, pH

Soil pH, fluoride and total cyanide were analyzed in all of the subsurface soil samples collected at the

Site. Figure 4-6 presents the results of the pH, fluoride and cyanide subsurface soil samples. A summary

of the results of detections for each of these parameters is presented in the following table.

Range of Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Wet Chemistry (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) No. Avg Max No. Avg Max No. Avg Max No. Avg Max pH (s.u.) -- 61 8.98 12.2 11 5.54 8.3 43 6.02 12.4 22 9.77 12.4 Fluoride 6100(a) 61 78.3 624 11 46.5 148 43 42.1 206 22 52 125

Cyanide 2000(b) 22 32.1 143 5 1.47 3.8 6 5.83 12.7 8 5.03 22.8

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. (a) RSL for Fluorine, which is soluble form of Fluoride, and form on which RfD is based. (b) RSL for free Cyanide conservatively used for total cyanide.

The pH of the subsurface soil in IB-1 ranged from 7.7 to 12.2 with an average of 8.98. IB-4 showed a

similar pH range with a slightly higher pH of 8.6 at the low end of the range and a higher average at 9.77.

IB-3 had a similar pH at the top end of the range, but had a significantly lower low-end pH at 4.5 and a

lower average at 6.02. The pH of the subsurface soil in IB-2 was closer to neutral with a pH range from

4.8 to 8.3 and an average of 5.54. These results mirror the results of the surface soil samples.


Fluoride was detected in all but one (in IB-3) of the subsurface soil samples collected at the Site. The

fluoride concentrations in IB-1 were higher than the concentrations in the other IBs. IB-4 had the lowest

maximum concentration of the IBs. Evaluation of the data within each subarea indicates that the highest

concentrations were observed in IB-1c Comparison of the concentrations of the fluoride at the Site to the

human health screening criteria indicates it is not considered to be a COI in subsurface soils.

Cyanide was detected in approximately one-third of the subsurface soil samples collected at the Site. The

detected cyanide concentrations ranged from 0.23 milligrams per kilogram (mg/kg) to 143 mg/kg.

Cyanide was detected in similar frequencies in all of the IBs. Comparison of the concentrations of

cyanide at the Site to the human health screening criteria indicates that it is not considered to be a COI in

subsurface soils.

4.2.3 Organics

Fifty-three subsurface soil samples collected at the Site were analyzed for organics. Seven of these were

collected in IB-1, one was collected in IB-2, 41 were collected in IB-3 and four were collected in IB-4e.

Of the samples selected for organics analysis, 18 were analyzed for volatile organic compounds (VOCs).

Figure 4-7 presents the locations and results of the subsurface soil samples analyzed for VOCs. The

following table presents a summary of the results of the VOCs in subsurface soil samples.

Range of VOC Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) No. Avg Max No. Avg Max No. Avg Max No. Avg Max Ethylbenzene 29 ND ND ND 2 10900 13,000Toluene 4600 ND ND ND 2 4550 5,700 Xylene 260 ND ND ND 2 20000 24,000Acetone 61000 1 25 25 ND 1 12 12 2 42.5 47 Chloroform 1.5 ND ND 1 2 2 2 2 2 Isopropylbenzene 1100 ND ND ND 2 1750 2,100 MTBE ND 1 3 3 ND ND Methylene Chloride 54 2 9 9 ND 4 7.5 13 2 18 18

ND indicates not detected.

VOCs were detected infrequently in IBs 1, 2, 3, and 4. Ethylbenzene, toluene, xylene, acetone,

chloroform, isopropylbenzene and methylene chloride were detected in two samples each in IB-4.

Acetone and methylene chloride were detected in one sample each in IBs 1 and 3. Chloroform was


detected in one sample in IB-3 and MTBE was detected in one sample in IB-2. The concentrations of the

VOCs detected in the subsurface soil samples were below the applicable screening criteria, and the VOCs

are not COPCs in subsurface soils.

Fifty-three subsurface soil samples were analyzed for semivolatile organic compounds (SVOCs). Figure

4-7 presents the locations and results of the subsurface soil samples analyzed for SVOCs. The following

table presents a summary of the SVOC results for each IB.

Range of SVOC Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) No. Avg Max No. Avg Max No. Avg Max No. Avg Max

1,1’ Biphenyl 5100 ND ND ND 2 30000 36,000 2,4,5-Trichlorophenol 6200 ND ND 1 53 53 ND 2-Methylnaphthalene 410 ND ND 10 1140 4,500 1 320 320 4-Nitropnenol -- ND ND ND 1 310 310 Bis(2-ethylhexyl)phthalate

120 2 560 1,000 ND 1 12,000 12,000 1 120 120

Carbazole -- ND ND 1 220 220 2 22,000 26,000 Dibenzofuran -- ND 1 45 45 1 140 140 2 120,000 130,000 Di-n-butylphthalate -- ND ND 1 160 160 ND N-nitrosodiphenylamine -- ND ND ND 2 10,200 13,000 Phenol -- ND ND ND 2 56 58

PAHs Acenaphthene 3300 ND ND 24 1141 9,900 ND Acenaphthylene 3300(a) ND ND 9 592 1,900 ND Anthracene 17000 ND ND 29 190 3,500 2 29.5 46 Benzo(a)anthracene 2.1 ND ND 31 583 14,000 2 153 220 Benzo(a)pyrene 0.21 ND ND 30 685 16,000 2 170 240 Benzo(b)fluoranthene 2.1 ND ND 30 680 16,000 2 176 260 Benzo(k)fluoranthene 21 ND ND 30 341 7,900 2 92 130 Benzo(g,h,i)perylene 1700 ND ND 34 791 20,000 2 200 260 Chrysene 210 ND ND 30 697 16,000 2 156 220 Dibenz(a,h)anthracene 0.21 ND ND 19 186 3,100 2 32.5 47 Fluoranthene 2200 ND ND 35 1075 25,000 2 315 460 Fluorene 2200 ND ND 23 194 2,100 1 6.3 6.3 Indeno(1,2,3-cd)pyrene 2.1 ND ND 29 573 13,000 2 142 190 Naphthalene 20 ND ND 2 1510 2,900 ND Phenanthrene 1700 ND ND 36 774 12,000 2 174 260 Pyrene 1700 ND ND 32 1284 29,000 2 275 380

(1) EPA Regional Screening Levels (RSL, 2008). RSLs based on noncarcinogenic effects are divided by 10 per EPA Region 3 guidance. (a) RSL for surrogate chemical Acenaphthene. (b) RSL for pyrene, which is comoply applied as a surrogate chemical for noncarcinogenic PAHs. ND indicated not detected.


In general, 1,1-biphenyl, 2,4,5-trichlorophenol, 4-nitrophenol, carbazole, dibenzofuran, di-n-

butylphthalate, n-nitrosodiphenylamine and phenol were detected infrequently on the Site. 2-

Methylnaphthalene was detected in 10 samples collected in IB-3 and one sample collected in IB-4 in

concentrations ranging from 120 to 4,500 mg/kg. Bis(2-ethylhexyl) phthalate was detected infrequently

in IBs 1, 3 and 4. Based on screening against the human health criteria, none of these constituents were

identified as COPCs in subsurface soils.

The PAHs were detected only in IBs 3 and 4. IB-3 was the only area where PAHs were present in

concentrations exceeding the human health screening criteria. Benzo(a)anthracene, benzo(a)pyrene,

benzo(b)fluoranthene, dibenz(a,h)anthracene and indeno(1,2,3-cd)pyrene were identified as COPCs in IB-

3.

PCBs were detected in two of the subsurface soil samples collected in IB-3. PCBs were not detected in

IBs 1, 2, or 4. The detected concentrations were less than the human health screening criteria, and

therefore, PCBs are not considered to be COPCs on the Site. Figure 4-7 presents the locations and results

of the subsurface soil samples analyzed for PCBs. The following table presents a summary of the PCB

results for subsurface soils.

Range of PCB Detections RSL(1) IB-1 IB-2 IB-3 IB-4

Compounds (mg/kg) (µg/kg) (µg/kg) (µg/kg) (µg/kg) PCB-1248 -- ND ND 1 370 370 ND PCB-1254 -- ND ND 1 28 28 ND PCB-1260 0.74 ND ND 2 86.5 150 ND


4.3 Sediment

Sixty-three sediment samples were collected from the Site. Thirty-one of the sediment samples were

collected in IB-1, 10 were collected in IB-3 and 22 were collected in IB-4. IB-2 does not contain wet

areas or standing water and no sediment samples were collected there. Table 4-4 presents a summary of

the detected compounds in sediment. The following subsections present a summary of the sediment data

collected at the Site.


4.3.1 Metals


nickel, selenium, silver, thallium, vanadium and zinc were detected in the sediment samples collected on

the Site. Figure 4-8 provides the locations of the sediment samples and the metals results for each

sample. The list of detected metals was consistent from one IB to another; and the concentration ranges

were similar. The following table provides a summary of the metals detected in the sediment samples.

Range of Metals Detections

Metals IB-1

(mg/kg) IB-3

(mg/kg) IB-4

(mg/kg) No. Avg Max No. Avg Max No. Avg Max

Aluminum 29 81748 119,000 10 51350 192,000 22 53398 123,000 Antimony ND 6 3.45 5.31 3 2.65 3.34 Arsenic 29 23.1 38.7 10 61.7 141 22 46.7 119 Barium 29 106 189 10 202 441 22 126 176 Cadmium 6 1.28 2.25 9 4.62 16.5 21 1.73 4.45 Chromium 29 895 1,310 10 112 371 22 138 776 Cobalt 29 3.24 8.74 10 7.82 19.5 22 3.24 6.92 Copper 29 44.1 159 10 90.6 337 22 27.8 95.7 Lead 29 151 568 10 171 695 22 248 976 Manganese 29 296 528 10 395 546 22 279 851 Mercury 29 0.269 0.55 10 0.267 1.14 22 0.215 0.563 Nickel 29 12.8 43.4 10 38.6 105 22 13.1 24 Selenium 17 4.73 8.72 8 3.13 11.3 19 3.95 11.6 Silver 8 2.65 3.79 4 2.24 5.85 2 1.24 1.89 Thallium 10 4.21 8.0 1 6.15 6.15 1 3.11 3.11 Vanadium 29 870 1,270 10 230 1,170 22 184 451 Zinc 29 216 1,030 10 519 2,620 22 239 879 ND indicates not detected.

The human health risk assessment will further assess the significance of the metals detected in sediment.

4.3.2 Fluoride, Cyanide, pH

Sediment pH, fluoride and total cyanide were analyzed in all of the sediment samples collected at the Site.

Figure 4-9 provides the results of the sediment samples analyzed for pH, fluoride, and cyanide on the Site

map. The following table provides a summary of the results of these parameters in sediment samples.


Range of Detections

Wet Chemistry IB-1

(mg/kg) IB-3

(mg/kg) IB-4

(mg/kg)

No. Avg Max No. Avg Max No. Avg Max

pH (s.u.) 29 7.66 10.2 10 8.13 10.7 22 7.31 11.7 Fluoride 29 77.5 373 10 465 2,790 22 75.2 205 Cyanide 5 0.786 1.3 6 22.9 53.6 10 3.58 8.9

The pH values in IB-1 ranged from 6.6 to 10.2. The average pH in IB-1 was 7.66; however, this value

was pulled down by the pH in IB-1b, which had an average of 7.27. IB-1a and IB-1c had average

sediment pH values of 10.03 and 8.57 respectively. The difference is believed to be related to the

presence of a significant amount of vegetation surrounding the surface water in IB-1b, which appears to

keep the pH circumneutral. Similar conditions appear to be present in IB-4b, which also has an average

pH that is circumneutral at 6.75. IB-4a and IB-4d have higher average pHs at 9.85 and 8.85 respectively.

Fluoride was detected in all of the IBs in concentrations ranging from 14.9 to 2,790 mg/kg. The highest

concentrations of fluoride were detected in IB-3b, with two samples exceeding 1,000 mg/kg. The human

health risk assessment will further assess the significance of the fluoride detected in sediment. Cyanide

was detected in sediment samples all of the IBs in concentrations ranging from 0.25 to 53.6 mg/kg. IB-3b

was the only area where total cyanide in sediment exceeded 10 mg/kg, with three samples ranging from

27.9 to 53.6 mg/kg. Cyanide was identified as a COPC in sediment only in IB-3. The human health risk

assessment will further assess the significance of the cyanide detected in sediment.

4.3.3 Organics

Nine sediment samples collected at the Site were analyzed for organics. Of the samples selected for

organics analysis, all were analyzed for VOCs. Figure 4-10 presents the locations and results of the

sediment samples analyzed for VOCs. The following table provides a summary of the results for the

VOCs in sediment samples.


Range of VOC Detections

Compounds IB-1 (µg/kg)

IB-3 (µg/kg)

IB-4 (µg/kg)

No. Avg Max No. Avg Max No. Avg Max Benzene ND ND 1 2.0 2.0 Toluene ND ND 1 2.0 2.0 Xylene 2 4.0 6.0 ND ND Acetone 1 33 33 ND ND MTBE ND 1 5.0 5.0 2 9.5 16 Methylene Chloride 2 5.0 6.0 ND ND


VOCs were detected infrequently in IBs 1, 3, and 4. Benzene, toluene, xylene, acetone, MTBE and

methylene chloride were detected in at least one of the three IBs. Xylene, acetone and methylene chloride

were detected in samples collected in IB 1. MTBE was detected in one sample in IB-3 and benzene,

toluene and MTBE were detected in IB-4. The concentrations of the VOCs detected in the sediment

samples were below the applicable screening criteria, and the VOCs were not identified as COPCs in the

sediment samples.

Nine sediment samples were analyzed for SVOCs. Figure 4-10 presents the locations and results of the

sediment samples analyzed for SVOCs. The following table presents a summary of the SVOC results for

each IB.

Range of SVOC Detections


IB-3 (µg/kg)

IB-4 (µg/kg)

No. Avg Max No. Avg Max No. Avg Max 2-Methylnaphthalene ND ND 1 550 550 Bis(2-ethylhexyl)phthalate 1 790 790 ND ND Dibenzofuran 1 79 79 ND 1 230 230 PAHs Acenaphthene 1 130 130 ND ND Anthracene 1 110 110 ND 1 95 95 Benzo(a)anthracene 1 130 130 ND 2 220 320 Benzo(a)pyrene 1 87 87 ND 2 200 300 Benzo(b)fluoranthene 1 140 140 1 93 93 3 204 390 Benzo(k)fluoranthene ND ND 1 150 150 Benzo(g,h,i)perylene 1 77 77 ND 2 141 210 Chrysene 1 130 130 1 71 71 3 210 370 Dibenz(a,h)anthracene ND ND 1 65.0 65 Fluoranthene 1 370 370 1 90 90 3 310 630 Fluorene 1 150 150 ND ND Indeno(1,2,3-cd)pyrene ND ND 2 141 220 Naphthalene ND ND 1 180 180 Phenanthrene 1 660 660 ND 3 500 1,000 Pyrene 1 330 330 1 110 110 3 340 640



The SVOCs were detected relatively infrequently with 12 PAHs and bis(2ethylhexyl)phthalate and

dibenzofuran detected in one sample in IB-1, four PAHs detected in one sample in IB-3 and 13 PAHs, 2-

methylnaphthaline and dibenzofuran detected in IB-4. The human health risk assessment will further

assess the significance of the SVOCs detected in sediment.

PCBs were detected in sediment samples collected in IBs 1, 3 and 4. The PCB Aroclors detected

included 1254 and 1260. Figure 4-10 presents the locations and results of the sediment samples analyzed

for PCBs. The following table presents a summary of the PCBs detected in sediments at the Site.

Range of PCB Detections


IB-3 (µg/kg)

IB-4 (µg/kg)

No. Avg Max No. Avg Max No. Avg Max PCB-1254 3 66.0 89 1 70 70 1 21 21 PCB-1260 2 58.5 71 1 32 32 1 20 20

The concentrations of PCBs detected were below the human health screening criteria, and PCB was not

identified as a COPC in sediment samples.

4.4 Surface Water

Thirty-eight surface water samples were collected from IBs 1, 3, and 4 on the Site. No surface water was

present in IB-2. Fourteen surface water samples were collected in IB-1, four were collected in IB-3 and

20 were collected in IB-4. All of the surface water samples were analyzed for total and dissolved metals,

pH, fluoride, total cyanide, sulfate and TDS. Turbidity was measured in the field. Additionally, five

samples were analyzed for VOCs and five were analyzed for SVOCs. Table 4-5 presents a summary of

the detected compounds in subsurface soils.

4.4.1 Metals

The surface water samples were analyzed for both total and dissolved (filtered) metals. Figure 4-11

provides the locations of the surface water samples and both the total and dissolved metals results for

each sample. The following subsections present the results of the total and dissolved metals in surface

water at the Site.


4.4.1.1 Total Metals

Total aluminum, antimony, arsenic, barium, cadmium, calcium, chromium, cobalt, copper, lead,

magnesium, manganese, mercury, nickel, selenium, silver, thallium, vanadium, and zinc were detected in

the surface water samples collected on the Site. The list of detected metals was consistent from one IB to

another with the exception of mercury, which was not detected in surface water in IB-3. The following

table provides a summary of the total metals results in the surface water.

Range of Total Metals Detections

Metals IB-1 (mg/l)

IB-3 (mg/l)

IB-4 (mg/l)

No. Avg Max No. Avg Max No. Avg Max Aluminum 14 41.2 208 4 1.14 2.04 20 37.4 156 Antimony 15 0.001 0.0049 4 0.002 0.0041 20 0.003 0.0092 Arsenic 10 0.037 0.0893 4 0.015 0.0281 19 0.097 0.203 Barium 15 0.067 0.228 4 0.026 0.0402 20 0.008 0.0152 Cadmium 11 0.013 0.0295 4 0.001 0.0016 13 0.001 0.0025 Calcium 15 73.3 187 4 212 473 20 98.8 434 Chromium 11 1.07 3.79 2 0.005 0.0059 8 0.008 0.0121 Cobalt 7 0.003 0.0061 2 0.002 0.0029 5 0.003 0.0037 Copper 15 0.011 0.0329 4 0.017 0.0285 20 0.01 0.0248 Lead 15 0.049 0.204 4 0.019 0.0317 20 0.011 0.0418 Magnesium 15 3.72 7.16 4 5.12 12.8 20 0.479 1.29 Manganese 15 0.366 0.798 4 0.077 0.106 20 0.02 0.0543 Mercury 2 0.0002 0.00017 ND 1 0.0003 0.00034 Nickel 15 0.007 0.0226 4 0.018 0.0278 20 0.007 0.0192 Selenium 15 0.012 0.0895 4 0.006 0.0085 20 0.019 0.0409 Silver 10 0.002 0.0048 2 0.002 0.0035 6 0.0003 0.00046 Thallium 5 0.0001 0.00012 2 0.0000375 0.000038 18 0.00004 0.00011 Vanadium 15 0.899 3.16 4 0.017 0.0358 20 0.146 0.426 Zinc 13 0.028 0.0882 3 0.067 0.101 20 0.026 0.0825


4.4.1.2 Dissolved Metals

Dissolved aluminum, antimony, arsenic, barium, cadmium, calcium, chromium, cobalt, copper, lead,

magnesium, manganese, nickel, selenium, silver, thallium, vanadium, and zinc were detected in the

surface water samples collected on the Site. The list of detected metals was consistent from one IB to

another throughout the Site. The following table provides a summary of the dissolved metals results in

the surface water samples.

Range of Dissolved Metals Detections

Metals IB-1 (mg/l)

IB-3 (mg/l)

IB-4 (mg/l)

No. Avg Max No. Avg Max No. Avg Max Aluminum 11 2.48 6.84 4 1.07 1.72 20 35.4 149


Range of Dissolved Metals Detections

Metals IB-1 (mg/l)

IB-3 (mg/l)

IB-4 (mg/l)

No. Avg Max No. Avg Max No. Avg Max Antimony 15 0.001 0.0047 4 0.002 0.0039 20 0.003 0.0084 Arsenic 9 0.025 0.0673 3 0.016 0.0309 18 0.101 0.213 Barium 15 0.013 0.0381 4 0.02 0.0221 20 0.005 0.0134 Cadmium 10 0.0003 0.00083 4 0.0007 0.0013 14 0.0003 0.00059 Calcium 15 60.6 188 4 219 463 20 100 445 Chromium 10 0.041 0.062 1 0.004 0.0043 5 0.004 0.0047 Cobalt 8 0.002 0.0039 3 0.003 0.0036 4 0.003 0.0042 Copper 15 0.004 0.0157 4 0.015 0.0197 20 0.013 0.0242 Lead 13 0.001 0.0019 4 0.005 0.0067 20 0.004 0.0094 Magnesium 15 2.44 7.11 4 4.92 12 16 0.527 1.29 Manganese 15 0.159 0.606 4 0.066 0.108 20 0.013 0.0527 Mercury ND ND ND Nickel 15 0.002 0.0049 4 0.018 0.0266 20 0.007 0.0186 Selenium 15 0.012 0.0874 4 0.004 0.0065 20 0.018 0.0389 Silver 7 0.0001 0.00026 2 0.001 0.002 4 0.0001 0.00014 Thallium 1 0.000033 0.000033 1 0.000053 0.000053 14 0.00004 0.000057Vanadium 15 0.296 1.23 4 0.009 0.0112 20 0.144 0.418 Zinc 15 0.011 0.0193 3 0.040 0.0705 15 0.017 0.0683


The dissolved metals results showed concentrations that were generally lower than the total metals.

Mercury was not detected in the dissolved metals samples, but was detected in total metals samples

collected in IB-1 and IB-4. Additionally, comparison of the total and dissolved metals results generally

showed a larger difference in samples with high turbidity values. The higher metals concentrations in the

total metals analyses appear to be driven by the particulate matter in the water.

4.4.2 Fluoride, Cyanide, Sulfide, pH

Water pH, fluoride, total cyanide, sulfate, TDS and turbidity were analyzed in all of the surface water

samples collected at the Site. Figure 4-12 provides the results of the surface water samples analyzed for

pH, fluoride, cyanide sulfate, TDS and turbidity on the Site map. The following table presents a summary

of the detections in surface water samples.

Range of Detections Wet Chemistry IB-1 IB-3 IB-4

No. Avg Max No. Avg Max No. Avg Max pH (s.u.) 15 7.82 9.9 4 7.90 9.3 20 6.80 11.4 Fluoride (mg/l) 15 14.3 55.2 4 151 302 20 27.2 43.5 Cyanide (mg/l) ND 2 7.45 9.8 11 0.138 0.73 Sulfate (mg/l) 15 298 633 4 1723 3,550 20 2055 3,920


Range of Detections Wet Chemistry IB-1 IB-3 IB-4

No. Avg Max No. Avg Max No. Avg Max TDS (mg/l) 15 1013 2,430 4 4003 5,700 20 4159 6,210 Turbidity (NTU) 15 4260 17,100 4 17.2 26.9 20 38.9 170

ND – Indicates not detected.

The pH of the surface water ranged from 5.8 to 11.4 in IB-4; however, all but one sample, collected in IB-

4b and its duplicate had pH values above 8.3. The IB-4b sample had a pH of 5.8. This mirrors the

sediment sample results for this area. The pH values in IBs 1 and 3 were closer to neutral, with average

pH values of 7.82 and 7.90 respectively.

Fluoride was detected in the surface water samples in concentrations ranging from 2.3 to 302 mg/l. In IBs

1 and 4, the maximum fluoride concentration was 55.2 mg/l. The higher fluoride concentrations were

detected in IB-3b with two of the four samples collected in the area showing concentrations of 283 and

302 mg/l.

Cyanide was detected in IB-4 in low concentrations ranging from 0.083 and 0.73 mg/l. In IB-3, cyanide

was detected in two samples at concentrations of 5.1 and 9.8 mg/l. Cyanide was not detected in surface

water in IB-1.

Sulfate was detected in all of the surface water samples collected at the Site. The sulfate concentrations

ranged from 5.5 to 3,920 mg/l. The sulfate concentrations in IB-1c were significantly lower than in the

other IBs ranging from 5.5 to 6.2 mg/l. Sulfate in IB-1a and 1b was approximately two orders of

magnitude higher, and IBs 3b, 4a, 4b, and 4d were between one and three orders of magnitude higher than

the samples from IB-1c.

TDS concentrations in surface water ranged from 299 to 6,210 mg/l. The TDS concentrations in IB-1c

were significantly lower than in the other IBs ranging from 299 to 530 mg/l. TDS in IBs 1a, 1b, 3b, 4a,

4b, and 4d ranged from 1,040 to 6,210 mg/l.

The turbidity in the surface water samples ranged from 1.7 nephelometric turbidity units (n.t.u.) to 17,100

n.t.u. The turbidity of the samples collected in IB-1c was higher than any of the other samples collected

from the Site. Surface water samples collected in IB-1b had the lowest turbidity of the samples collected

on the Site.


The human health and ecological risk assessments further assess the significance of the water pH,

fluoride, total cyanide, sulfate, TDS and turbidity detected in surface water.

4.4.3 Organics

Five surface water samples collected at the Site were analyzed for organics. Of the samples selected for

organics analysis, all were analyzed for VOCs. Figure 4-13 presents the VOC results on the Site map.

The following table presents for a summary of the detections of VOCs in the surface water samples.

Range of VOC Detections

Compounds IB-1 (µg/l)

IB-3 (µg/l)

IB-4 (µg/l)

No. Avg Max No. Avg Max No. Avg Max Acetone 3 5.43 6.8 ND 1 9.6 9.6 Carbon Disulfide 1 1 1.0 ND 2 0.55 0.9 MEK 2 1.35 1.5 ND 1 1.7 1.7

ND – Indicates not detected.

Acetone, carbon disulfide and methylethyl ketone (MEK) were detected in samples collected in IB-1 and

IB-4. No VOCs were detected in the samples collected in IB-3. The concentrations of VOCs detected in

the surface water samples were slightly above the respective detection limits. VOCs were not identified

as COPCs in surface water.

Of the samples selected for organics analysis, all were analyzed for SVOCs. Figure 4-13 presents the

SVOC results on the Site map. The following table presents the frequency of detection for the SVOCs in

the surface water samples.

Range of SVOC Detections Compounds IB-1 (µg/l) IB-3 (µg/l) IB-4 (µg/l)

No. Avg Max No. Avg Max No. Avg MaxBis(2-ethylhexyl)phthalate ND ND 1 32 32 Phenol ND ND 1 1.0 1.0


Bis(2-ethylhexyl)phthalate and phenol were detected in one sample each in IB-4. No other SVOCs were

detected and no SVOCs were detected in IBs 1 and 3. The SVOC detections in IB-4 were only slightly

above the detection limit. No VOCs were identified as COPCs in surface water.


4.5 Groundwater

The potentiometric surface of the American Bottoms Aquifer generally around 20 ft-bgs in the vicinity of

the Site. Four monitoring wells (MW-1 through MW-4; Figure 2-6) were installed around the perimeter

of the Site to obtain groundwater samples and groundwater levels. A fifth, existing well (Upchurch MW-

2S) was also used to collect a groundwater sample. MW-1 is located on the eastern perimeter of the Site

and wells MW-2, MW-3 and MW-4 are located along the northwestern perimeter of the Site. The

groundwater levels measured on July 26, 2004 indicate that groundwater flows from southeast to

northwest across the Site. MW-1 is located up gradient of the Site, while MW-2, MW-3 and MW-4 are

located down gradient of the Site. The Upchurch property is located at the northwestern corner of the Site

and MW-2S is located approximately 200 feet from MW-2.

Groundwater samples were collected from the five monitoring wells in July 2004 and analyzed for

alkalinity, total and amenable cyanide, chloride, fluoride, sulfate, TDS, gross alpha/beta and gamma

spectroscopy. Additionally, the groundwater samples were analyzed for both total and dissolved metals

including antimony, arsenic, cadmium, chromium, iron, lead, manganese, mercury, molybdenum,

selenium, thallium and uranium (total only). Field parameters included pH, conductivity,

oxidative/reductive potential (ORP), dissolved oxygen temperature. The groundwater chemistry results

of the samples are tabulated and presented on Table 4-6. The locations of the monitoring wells, including

the sample results and the spatial variations in groundwater chemistry are presented on Figure 4-14. The

assessment of risk from the groundwater pathway will be described in Section 3.1.3 of the BHHRA.

The field parameters were measured to monitor the progress of well purging during sampling. The final

values obtained from the wells prior to sample collection were as follows: The pH measurements of

groundwater samples ranged from 6.71 in MW-2 to 7.89 in well MW-4. The conductivity of the

groundwater samples ranged from 966 micromhos per centimeter (µmhos/cm) in well MW-1 to 3,626

µmhos/cm in well MW-3. ORP values of groundwater samples ranged from -96 electron volts (ev) in

well MW-2 to -245 ev in well MW-1. Dissolved oxygen values of groundwater samples ranged from

0.03 mg/l in well MW-3 to 0.14 mg/l in well MW-2S. The water temperature values ranged from 15.59

degrees Celsius (°C) in MW-1 to 17.76 °C in MW-2. The groundwater samples collected from

monitoring wells during the RI are circumneutral, and do not exhibit the high pH values characteristic of

caustic as would be expected if leachate from residue were impacting groundwater.


The results of the groundwater samples showed detections for all of the parameters analyzed except

mercury and antimony (Figure 4-14, Table 4-6). Additionally, chromium and lead were detected in the

total sample, but not in the dissolved sample. The pH values of the groundwater samples are

circumneutral and do not exhibit the high pH values characteristic of caustic. The human health risk

assessment will further assess the significance of the parameters detected in groundwater. Figure 4-14

presents the locations and analytical results of the groundwater samples.

4.6 Geotechnical Samples

Eighty-eight geotechnical samples were collected from borings in the RI. These samples were analyzed

for water content (84 samples), Atterberg limits (53 samples), soil classification (53 samples),

compression (four samples), dry unit weight (31 samples), a sieve test (78 samples) and permeability (five

samples). Sixty-one geotechnical samples were collected from IB-1, 25 were collected from IB-2 and

two were collected from IB-4a. No geotechnical samples were collected from IB-3. The locations of the

geotechnical samples are presented on Figure 2-3. The purpose of the geotechnical samples was to

provide data on soil properties that may be needed for the development and screening of remedial

alternatives. Table 4-7 provides a summary of the results of the geotechnical samples. A summary of the

results of the geotechnical samples is presented below for each IB.

4.6.1 IB-1 – Residue Disposal Areas

Sixty-one geotechnical samples were collected in IB-1. These samples were analyzed for water content

(57 samples) Atterberg limits (45 samples), soil classification (45 samples), compression (two samples),

dry unit weight (25 samples), a sieve test (52 samples) and permeability (five samples). These samples

were collected primarily from the residue and were very fine-grained in nature.

The water content is calculated by dividing the weight of water in the sample by the weight of dry solids.

The water content of the samples collected in IB-1 ranged from 29 to 123 percent. As would be expected,

the water content of the shallow samples was generally less than that of the deeper samples.

The percent passing a #200 sieve in IB-1 ranged from 10.7 to 99.9. The Atterberg limits results showed

liquid limits ranging from 32 to 112 percent moisture, the plastic limits ranged from 17 to 84 percent

moisture and the plastic indices ranged from zero to 53. Atterberg limits varied widely throughout the


samples and was often related to the content of fine-grained materials. Samples comprised predominantly

of fine-grained material generally had high Atterberg limits. In general, where the material was classified

as sand, the Atterberg limits test was performed on finer-grained portions of the sample (i.e., clay or silt

bands within the sand matrix). With the exception of borings 1bUP003 and 1bUP005, the in-situ water

content of the samples exceeded the liquid limits, which, in theory, suggests that the soils have zero

strength. Given that the alumina extraction process changed over time and that there was variability in

the deposition of the waste from the process, certain areas of the RDAs appear to have significantly more

stable soil than others. The reported soil classifications for soils in IB-1 ranged from CL to MH.

The results of the permeability samples from IB-1 ranged from 3.8 x 10-7 to 2.0 x 10-6 centimeters per

second (cm/sec). These samples had between 62 and 99 percent passing a #200 sieve, and were classified

as MH to ML. The measured permeabilities are consistent with the material types observed and

geotechnical measurements of bauxite at other facilities.

4.6.2 IB-2 – Gypsum Dike Areas

Twenty-five geotechnical samples were collected from IB-2. Seven of these were analyzed for Atterberg

limits and soil classification, two were subjected to a compression test, four were tested for dry unit

weight and all 25 were analyzed for water content and subjected to a sieve test. The water content of the

samples collected in IB-2 ranged from 13 to 58 percent. The water contents in the IB-2 samples were

significantly lower than in the IB-1 samples.

The percent passing a #200 sieve ranged from 10.0 to 99.9 percent. The Atterberg limits results in IB-2

showed liquid limits ranging from 39 to 73 percent moisture, the plastic limits ranged from 25 to 46

percent moisture and the plastic indices ranged from zero to 48. In general, where the material was

classified as sand, the Atterberg limits test was performed on finer-grained portions of the sample (i.e.,

clay or silt bands within the sand matrix). Five of the seven samples tested for Atterberg limits had in-

situ water contents lower than the liquid limits; four of these had water contents above the plastic limit.

The reported soil classifications for soils in IB-2 ranged from CH to MH. It should be noted that in

samples with less than 50% passing the #200 sieve (five samples), the soil classification is not

representative of the material as a whole. The material in IB-2 is generally hard, cementicious material

and was characterized by the geotechnical lab as being similar to slag, containing large, angular grains of

gravel size.


4.6.3 IB-4 – Areas with No Known Alcoa Activities

Two geotechnical samples were collected in IB-4. These samples were analyzed for water content (2

samples) Atterberg limits (1 sample), soil classification (2 samples), dry unit weight (2 samples) and a

sieve test (2 samples). The content of these samples was primarily bauxite residue and they were very

fine-grained in nature. The water content of the samples collected in IB-4 was 54 and 74 percent. The

sample that was 54 percent water was a surface soil sample collected from zero to 2 feet in depth. The

sample with a water content of 74 percent was collected from 9-11 feet in depth.

The percent passing a #200 sieve in IB-1 ranged from 90.3 percent (shallow sample) and 99.5 percent

(deep sample). Atterberg limits were only run on the deep sample and the liquid limit was 63 percent

moisture, the plastic limit was 45 percent moisture and the plastic index was 18. The in-situ water content

of the deep sample exceeded the liquid limits, meaning that the soil has zero strength. The shallow

sample was listed as non-plastic. The reported soil classification for the shallow sample was CH.

4.7 Agronomic Samples

One hundred and thirty-nine samples were collected from IBs 1, 2, and 4 for agronomic parameters. No

agronomic samples were collected from IB-3. The agronomic samples were collected from three

intervals on the Site including zero to one ft-bgs, one to two ft-bgs, and nine to 11 ft-bgs. The agronomic

parameters included nitrogen, sulfur, calcium, magnesium, sodium, potassium, boron, zinc, manganese,

copper, iron, phosphorus, soil pH, water content, and soil bulk density in IBs 1, 2, and 4, and nitrate

nitrogen, sulfate sulfur, cation exchange capacity (CEC) and exchangeable sodium capacity (ESP) in IBs

1 and 4. The locations of the agronomic samples are presented on Figure 2-3. An analysis of the

agronomic data is provided under separate cover in the FS. Table 4-8 provides the results of the

agronomic samples; the following table provides a summary of the data including the number of samples

analyzed in each IB and the range of detections for each parameter.

Range of Detections for Agronomic Parameters

Parameters IB-1 (mg/kg)

IB-2 (mg/kg)

IB-4 (mg/kg)

No. Min Max No. Min Max No. Min Max Nitrogen 118 49 2276 17 26 355 4 152 218 Sulfur 118 501 206757 17 1336 205755 4 16701 21141 Calcium 118 61080 362520 17 5368 217129 4 201066 293373 Magnesium 118 187 17613 17 5 4701 4 3488 3813 Sodium 118 1027 368675 17 50 4998 4 391573 279677


Range of Detections for Agronomic Parameters

Parameters IB-1 (mg/kg)

IB-2 (mg/kg)

IB-4 (mg/kg)

No. Min Max No. Min Max No. Min Max Potassium 118 3 2039 17 39 2618 4 1045 1521 Boron 118 4 269 17 1 381 4 122 136 Zinc 118 32 1181 17 20 454 4 79 184 Manganese 118 23 7359 16 3 462 4 783 1174 Copper 118 18 1087 17 15 400 4 36 73 Iron 118 2817 265025 17 145 185068 4 59544 83216 Phosphorus 118 7 3416 17 3 1184 4 1754 2611 Nitrate 83 2 26 NA 4 6 10 Sulfate 118 168 3044 NA 4 840 2247 CEC 118 2.4 76.3 NA 4 77.5 90.9 ESP 118 4.38 59.43 NA 4 7.52 19.96 pH 118 7.3 10.6 17 5.9 7.9 4 10.4 10.5 Water Content 118 2.4 41.7 17 1.33 30.01 4 26.72 35.77 Bulk Density 118 1.01 2.62 17 1.46 2.41 4 1.41 1.71

4.8 Phase 2 Ecological Data Collection

Ninety-one samples were collected from IBs 1, 2, and 3 to assess the uptake of Site-related metals into

plant and terrestrial invertebrate tissues as outlined in the Phase 2 Ecological Field Sampling Plan (Alcoa,

2004b). These samples consisted of 31 surface soil, 32 plant tissue and 28 terrestrial invertebrate samples

that were collocated from IB-1a, IB-1b, IB-1c, IB-2, and IB-3b on of the Site. The locations of the

samples are presented on Figure 4-15.

The purpose of the Phase 2 data collection was to reduce the uncertainty in the assessment of ecological

risk described in the BERA. The evaluation of the Phase 2 data is presented in the ecological risk

assessment. The results of all of the samples collected as part of the Phase 2 data collection are presented

in the following subsections.

4.8.1 Surface Soil Samples

Thirty one (31) surface soil samples were collected from the Site as part of the Phase 2 ecological data

collection. The samples were analyzed for cadmium, chromium (total and hexavalent), lead, selenium,

vanadium, zinc, cyanide, fluoride and pH. The chromium VI data were all rejected by the data validator

due to extremely low matrix spike recovery. The documentation of the data validation for the chrome VI

samples is provided in Appendix F. The fluoride data is also suspect because of the variability observed

between the Phase 1 and 2 data. The Phase 2 fluoride concentrations were significantly lower than the

Phase 1 data. The data discrepancy is still being evaluated and will be resolved in the FS. The results of


the surface soil samples collected for the ecological evaluation are presented in Table 4-9; the following

table provides a summary of the results.

Range of Constituents Detected in Phase 2 Surface Soil Samples Parameters IB-1 IB-2 IB-3

No. Avg Max No. Avg Max No. Avg Max Cadmium (mg/kg) 16 6.2 10.7 5 4.23 7.6 10 3.84 10 Chromium (mg/kg) 16 683 1,900 5 99.1 216 10 180 413 Lead (mg/kg) 16 382 3,650 5 873 1360 10 278 1,110 Selenium (mg/kg) 12 3.33 5.7 4 3.03 5.1 10 3.18 17 Vanadium (mg/kg) 16 7.36 1,270 5 278 631 10 243 898 Zinc (mg/kg) 16 143 756 5 153 307 10 328 1,290 Fluoride (mg/kg)1 16 10.1 33.8 5 3.86 4.7 10 7.85 23.1 Cyanide (mg/kg) 4 5.08 9.7 3 3.03 5.9 5 11.3 53.2 pH (s.u.) 16 6.96 9.2 5 7.49 7.8 10 7.71 8.8

The metals concentrations detected in the Phase 2 surface soil samples were similar to those detected in

the Phase 1 surface soil samples. The maximum lead detection in IB-1 was higher than the previous

maximum; however, the next highest lead concentration in IB-1 was 1,040 mg/kg, and all of the other

lead concentrations were less than 200 mg/kg. The maximum detection of zinc was higher in IB-3 than in

the Phase 1 RI; however, all of the other zinc concentrations in IB-3 were within the range of the Phase 1

data. The metals detected in these samples will not be directly evaluated in the human health risk

assessment because the Phase 1 effort yielded a statistically adequate data set for human health risk

assessment. The ranges of detections are similar to those of the Phase 1 data and the samples were

collected in support of the ecological evaluation. The results of the samples will be further evaluated in

the ecological risk assessment.

The Phase 2 surface soil sample results for pH, fluoride and cyanide are also presented in the above table.

The pH ranges of the samples were generally similar to those in Phase 1. The average pH in IB-1 was

nearly neutral at 6.96, IB-2 was slightly above neutral at 7.49, and IB-3 was also slightly above neutral at

7.71. Cyanide was detected in 12 of the 31 Phase 1I samples within the ranges observed in the Phase 1 RI

in IB-1 and IB-2. The maximum detection of cyanide in IB-3 was approximately one order of magnitude

higher than the maximum in the Phase 1 RI. This result appears to be a high outlier; the other

concentrations observed in IB-3 in the Phase 1I investigation were less than 1.0 mg/kg.

1 Note that the concentration ranges of the Phase 2 fluoride data are not consistent with the ranges of concentrations observed in the Phase 1 set. The Phase 2 fluoride data are suspect and will be confirmed as part of an FS data need, and are not discussed further in the RI.


4.8.2 Vegetation Samples

Thirty-two samples were collected of vegetation growing in IB-1, IB-2, and IB-3. The vegetation

samples were analyzed for cadmium, chromium (total only), lead, selenium, vanadium, zinc, cyanide and

fluoride. Like the soil data, the fluoride data in the vegetation samples are suspect and will be confirmed

as an FS data need. The results of the vegetation samples collected for the ecological evaluation are

presented on Table 4-10; the following table provides a summary of the results.

Range of Constituents Detected in Phase 2 Vegetation Samples

Metals IB-1 (mg/kg)

IB-2 (mg/kg)

IB-3 (mg/kg)

No. Avg Max No. Avg Max No. Avg Max Cadmium 14 0.3 1.7 5 0.386 0.95 10 0.263 0.53 Chromium 17 1.83 5.0 5 1.31 2.6 10 0.688 1.7 Lead 17 3.95 41.5 5 19.7 42.3 10 1.4 1.8 Selenium 17 1.44 1.8 5 1.38 1.7 10 1.5 2.0 Vanadium 13 1.76 5.5 5 8.34 3.1 6 0.375 0.46 Zinc 17 59.6 234 5 62.9 98.8 10 45.4 94.5 Fluoride2 17 1054 2,050 5 514 1,060 10 922 1,270 Cyanide 1 0.75 0.75 1 0.94 0.94 ND


All of the metals except cadmium and vanadium were detected in all of the samples collected. Cadmium

was detected in all but three samples and vanadium was detected in all but eight samples. Cadmium, lead

and zinc all appear to have one high outlying concentration in the sample set from IB-1. Sample

1bVG002 had cadmium, chromium, and lead concentrations at 1.7, 41.5, and 234 mg/kg respectively. All

of these concentrations are nearly one order of magnitude higher than the next highest concentration in

the data set for IB-1.

The Phase 2 vegetation sample results for cyanide are also presented in the above table. Cyanide was

detected in only one sample in each of IB-1 and IB-2. The cyanide detections were only slightly above

the detection limit.

4.8.3 Terrestrial Invertebrate Samples

Twenty-eight terrestrial invertebrate samples were collected from the Site during Phase 2. These included

14 samples from IB-1, five from IB-2 and nine from IB-3. The terrestrial invertebrate samples were

2 The Phase 2 fluoride data in vegetation are suspect and will be confirmed as an FS data need.


analyzed for cadmium, chromium (total only), lead, selenium, vanadium, zinc, cyanide and fluoride. The

results of the terrestrial invertebrate samples collected for the ecological evaluation are presented on

Table 4-11; the following table provides a summary of the analytical results.

Range of Constituents Detected in Phase 2 Invertebrate Samples

Metals IB-1 (mg/kg)

IB-2 (mg/kg)

IB-3 (mg/kg)

No. Avg Max No. Avg Max No. Avg Max Cadmium 13 0.362 0.92 5 1.05 2.2 9 0.61 1.4 Chromium 14 51.5 191 5 94.3 241 9 27.8 102 Lead 14 5.03 34.4 5 86 260 9 1.15 2.9 Selenium 14 0.428 0.79 4 0.478 0.98 9 0.539 1.1 Vanadium 14 7.22 33.2 4 8.15 22.2 6 0.386 1.7 Zinc 14 84.9 161 5 124 195 9 87.3 128 Fluoride3 4 75.7 99.7 1 14.7 14.7 2 136 210 Cyanide 5 4.58 10.5 1 2.1 2.1 3 2.77 3.8

The metals results for the terrestrial invertebrates had detections of all of the metals analyzed. Chromium,

lead and zinc were detected in all of the samples analyzed. Cadmium and selenium were detected in all

but one sample each, and vanadium was detected in all but four samples.

The Phase 2 terrestrial invertebrate sample results for fluoride and cyanide are also presented in the above

table. Fluoride and cyanide were detected at a relatively low frequency in the invertebrate samples.

Fluoride was detected in seven of the 28 samples and cyanide was detected in nine of the 28 samples. As

with the soil and vegetation, the fluoride invertebrate data from the Phase 2 investigation will be

evaluated in the FS. The significance of all of the detections (except fluoride) in the invertebrate samples

will be evaluated in the ecological risk assessment.

4.9 Off-Site Boring Investigation

The off-site boring investigation was performed to verify the location of bauxite residue placement and

other fill materials at the northwestern perimeter of the Site and within the footprint of the former

Pittsburg Lake. Historically, fill was placed in the former Pittsburg Lake, but the geographic extent of the

lake was not accurately defined in the early 20th century when infilling occurred. This information is

germane to the definition of the Site Boundary as set forth in the AOC. The borings were placed in the

residential area to the north of Lake Drive and in two parallel lines along the southern property line of the

3 The Phase 2 fluoride data in invertebrates are suspect and will be confirmed as an FS data need.


adjacent residences and along the Louisiana Boulevard/Lake Drive right of way to the north of the

residences (Figure 4-15). The borings were documented in accordance with TETRA TECH SOP No. 4:

Supervision of Exploratory Borings, using a detailed lithologic log. The field procedures were conducted

in accordance with the drilling and logging procedures outlined in sections 2.6.2.2 and 2.6.2, respectively,

of the Field Sampling Plan in Appendix G-2 of the RI/FS Work Plan (Alcoa and the City of East St.

Louis, 2003). No samples were collected for chemical analysis. The results of the investigation indicate

that residue is present in the four borings nearest the Site (Borings 4cUP014, 4cUP015, 4cUP016, and

4cUP017) between at least two and eight feet deep. No observable bauxite residue was present in the

other six borings. It should be noted that the borings containing residue were all within the Site as

defined by the AOC.

Based on the results of the off-site boring investigation, the residue may be present on the southern

portion of the residential properties but does not appear to extend as far northward as Louisiana Blvd. All

of the residue observed in the borings along the northwestern corner of the Site was greater than two feet

in depth. Figure 4-16 presents the limit of the bauxite residue in the area.


5.0 CONTAMINANT FATE AND TRANSPORT

This section provides an evaluation of the fate and transport of constituents identified in the soil at the

North Alcoa Site. The fate and transport analysis is an evaluation of how Site-related constituents

migrate, degrade and dilute in the environment. This section identifies the primary potential migration

routes of Site-related constituents and provides an evaluation (where necessary) of the potential for

movement of constituents to offsite areas.

5.1 Potential Migration Routes

There are three potential migration routes for Site-related constituents to move to offsite locations. These

include surface soils migrating offsite via windborne particulates, migration of Site-related constituents

via surface water and migration of Site-related constituents via leaching from soil to groundwater and

transport to offsite areas via groundwater. The following sections address each of these pathways.

5.1.1 Windborne Migration

Site-related constituents could potentially migrate offsite via wind erosion, dispersion and deposition.

Migration via the wind erosion pathway applies principally to the barren areas of the Site since wind

erosion is significantly reduced by the presence of vegetation. The wind erosion pathway is not

quantitatively evaluated in this section; however, it will be addressed in the human health risk assessment

(Alcoa and the City of East St. Louis, 2005a).

5.1.2 Surface Water Migration

The potential for migration of Site-related constituents via surface water runoff from the Site is very low.

An evaluation of the surface water runoff pathways in the vicinity of the Site indicated that no surface

water exits the Site. No direct drainage pathways including open drainage swales, creeks or storm water

sewers are present on the Site. The evaluation of the surface water pathways is presented in Section 3.5

above.


5.1.3 Soil to Groundwater Migration

The potential for migration of constituents from soil to groundwater was evaluated in Technical

Memorandum No. 5 “Identification of Phase 1 Groundwater Chemicals of Interest, North Alcoa Site, East

St. Louis, IL” (Appendix A). The Phase 1 soils data were compared to the USEPA soil screening levels,

and those exceeding were considered COIs for the groundwater investigation. Additional COIs were

added to the groundwater analyte list based on discussions between the agency and Respondents. The

groundwater analytes are included in TM-5 in Appendix A.

5.2 Constituent Persistence

The only constituent present in groundwater exceeding a MCL is fluoride. The presence of fluoride is

likely associated with the waste streams and byproducts of the hydrofluoric acid plants that were present

in the plant. The gypsum dikes around the RDAs were constructed from waste produced in the acid

plants.

Fluoride is relatively persistent in the environment. Sodium fluoride has a solubility of approximately

50,000 mg/l. In certain conditions where calcium carbonate is present and the pH is near neutral, sodium

fluoride (NaF) can react to form the less soluble calcium fluoride (CaF; solubility of approximately 16

mg/l). It is also possible that under normal conditions in groundwater, fluoride can be present as free F-.

Given the physical characteristics of the potential species of fluoride and the current concentrations in

groundwater, the downgradient concentrations of fluoride likely will be controlled by hydrodynamic

dispersion. Solutes are transported in groundwater by the bulk motion of flowing groundwater known as

advection. Mechanical mixing during fluid advection, and to a lesser extent, molecular diffusion, result in

the solute spreading out from the flow path that would be expected if only advection were considered.

This spreading effect due to mechanical motion of the fluid is termed hydrodynamic dispersion (Freeze

and Cherry, 1979). The spreading effect of hydrodynamic dispersion results in an attenuation of peak

concentrations as groundwater migrates downgradient from a source. Therefore hydrodynamic

dispersion, (as well as recharge from infiltration), can be expected to reduce the concentrations of fluoride

measured on-Site as groundwater flows in the downgradient direction.

Metals are also relatively persistent in the environment. Metals do not degrade per se, but the solubility

of metals in water varies depending on the valence state of the metal, pH, ORP and the specific

compounds present. If metals migrate to groundwater, they may attenuate via adsorption or precipitation


mechanism, or hydrodynamic dispersion. Based on the observed low concentrations of metals in

groundwater down gradient of the Site, it does not appear that significant migration of metals to

groundwater is occurring.


6.0 OVERVIEW OF CONCEPTUAL SITE MODEL

This section presents a Conceptual Site Model (CSM) of the North Alcoa facility that was developed

using the physical and chemical data previously available for the IBs as well as that generated in the

remedial investigation. The purpose of the CSM is to provide a summary description of the relevant

physical and chemical processes at the Site. Conceptual exposure models, which assess the quantitative

relationships of potential sources, release mechanisms, migration pathways, and exposure to receptors

will be presented in the baseline human health and ecological risk assessments (summarized in Section

7.0),

As described in Section 2.2.1, the Site consists of five IBs, which are further subdivided as appropriate

based on the wastes present, physical location and/or historic activities. Figure 2-1 shows the locations of

the IBs and the associated sub-areas.

The entire area of the Site is located in the former flood plain of the Mississippi River. Historically, a

portion of Pittsburg Lake, an oxbow lake left from a former channel of the river, occupied the

northeastern portion of the Site. The natural geologic material underlying the Site consists of the Cahokia

and Henry Formations. The Cahokia Formation is a 30 to 50 foot thick alluvial deposit laid down by the

ancestral Mississippi River, consisting of clay and silt at the top and coarsening downward to a sand. The

Henry Formation consists of approximately 120 feet of reworked glacial outwash with well-sorted sand

and gravel units that coarsen with depth. The American Bottoms Aquifer is present in the Henry

Formation, extending into the bottom of the Cahokia Formation.

The surface elevation of the entire site has been modified by the placement of various fill materials

through time. In the area of the RDAs (IB-1), the fill is up to 30 feet above the surrounding grade. The

former Pittsburg Lake, where it existed on the Site, appears to have been filled, in part, with bauxite

residue and other fill materials.

The perimeter of the RDAs was maintained by the placement of gypsum from the former Acid Plant

processes to form dikes (IB-2). The cementicious nature of the gypsum material caused it to consolidate

into a relatively stable dike structure.


In areas outside of the RDAs, the fill material consists of cinders, bauxite residue and various soils

imported into the area. These areas (IBs 3 and 4) are at an elevation approximately 20 to 40 feet below

the top elevation of the RDAs.

The potential exposure pathways for each of the IBs are discussed in the human health and ecological risk

assessments. The following sections provide IB-specific information relevant to the CSM.

6.1 Investigative Block 1 – Residue Disposal Areas

Investigative Block 1 includes the three bauxite RDAs, of approximately 40-acres each, located in the

central portion of the Site. These include the Old Pond (RDA 1), the Brown Mud Lake (RDA 2) and the

Red Mud Lake (RDA 3). These units were used for the disposal of process wastes in the manufacture of

alumina from bauxite. The mud was pumped to the RDAs in slurry, which was allowed to decant.

Currently, the mud is semisolid, but in some cases the moisture content exceeds the liquid limits of the

material, which suggests the soil has no shear strength and acts as a liquid.

The three RDAs are composed primarily of bauxite residue, which is the major waste stream from the

alumina production process. Typical composition of bauxite residue (inclusive of red and brown mud) is

30 to 60% ferric oxide (Fe2O3), 10 to 20% aluminum oxide (alumina; Al2O3), 2 to 50% quartz (SiO2), 2 to

10% sodium monoxide (Na2O), 2 to 8% quicklime (CaO), and trace to 10% titanium dioxide (TiO2). The

bauxite residue is typically fine-grained, generally with >90% passing a #200 sieve and alkaline in nature,

with a typical pH above 10.5.

6.1.1 Investigative Block 1a

IB-1a, located on the northwest corner of the RDAs, is the oldest of the RDAs and was used for the

disposal of bauxite residue. Gypsum dikes originally surrounded the Old Pond; however, the western

dike was breached (likely in the 1930s) to mine approximately five acres of the bauxite residue for

reprocessing. The mined area of RDA 1 contains a highwall left after the mining ceased. The mined area

has, over time, led to the creation of a dendritic drainage “canyon” that stretches approximately halfway

into the RDA. Based on review of the November 2003 aerial photograph, RDA 1 is approximately 70%

vegetated, 20% barren residue and 10% standing water. Some of residue in RDA 1 has been removed for

Site treatability testing, per approval by USEPA.


The surface water within RDA-1 is located primarily in the deeply incised, mined area at the western end

of the RDA. During the remedial investigation, 20 borings were drilled in RDA 1. The boring logs

indicate that the waste material is approximately 36 feet thick in the RDA.

6.1.2 Investigative Block 1b

RDA 2, located on the southern corner of the RDAs, is the most recent of the RDAs and is referred to as

the “Brown Mud” lake, likely due to the presence of waste from sinter plant, which reprocessed bauxite

residue from RDA 1 into alumina powder. The amount of brown mud in the lake is small relative to the

amount of red mud. It is believed that RDA 2 may have also received “Black Mud” from the former

spent potliner cryolite recovery operation. Based on review of the November 2003 aerial photograph,

RDA 2 is approximately 85% vegetated, 10% barren residue and 5% standing water. The surface water

within RDA-2 is located primarily in the eastern end of the RDA in the shallow, low-lying area.

During the remedial investigation, 14 borings were drilled in RDA 2. The boring logs indicate that the

waste material averages approximately 20 feet thick and is underlain by the Cahokia Formation. Waste

materials encountered in RDA 2 consisted primarily of bauxite residue. Brown mud was encountered in

several of the borings. In some areas of RDA 2, gypsum was present at the bottom of the borings. No

black mud was readily identifiable in the borings.

6.1.3 Investigative Block 1c

RDA 3, located on the northeast corner of the RDAs is intermediate in age relative to RDAs 1 and 2 and

received red mud waste from the extraction of alumina powder from bauxite. After the lake was drained,

a layer of gypsum was placed on the southeastern perimeter of the RDA 3 for dust suppression. Based on

review of the November 2003 aerial photograph, RDA 3 is approximately 30% vegetated, 60% bare

residue and 10% standing water.

The surface water within RDA-3 is located primarily in the central portion of the RDA. The area covered

by surface water fluctuates significantly in RDA 3 due precipitation and evaporation. The water, when

present, is extremely turbid, with the fine-grained bauxite residue suspended in it.


During the remedial investigation, 20 borings were drilled in RDA 3. The boring logs indicate that the

waste material averages approximately 30 feet thick. Waste materials encountered in RDA 3 consisted

primarily of bauxite residue.

6.2 Investigative Block 2 – Gypsum Dike Areas

The Gypsum Dike Areas include the gypsum dikes around the perimeter of the RDAs. The dikes were

built from gypsum that was a byproduct of the Acid Plants. The gypsum was transported via rail car to

the dike areas and a clamshell bucket was used to place the material. Lead measured in the gypsum dike

material ranges up to approximately 2,250 mg/kg in concentration, based on the Phase 1 data. The

gypsum is cementicious in nature and has consolidated into a hardened mass, except where breached

either intentionally or by a dike failure. The geotechnical testing on the material describes it as having the

physical characteristics of slag. No standing water is present in IB-2.

Some of the gypsum has been mined for its commercial value, although mining has now ceased. The

mined area is located on the southern and southeast borders of the RDAs where vertical high walls

remain.

6.3 Investigative Block 3 – Other Areas of Alcoa Activity

IB 3 consists of four former Alcoa operations including the Brick Works; Childs Property (former Sinter

Plant), the Redevelopment Area (former Stockpile Area) and the Spent Potlining Stockpiling Area. These

areas are located on the southern perimeter of the Site and in a narrow band along the western and

northern portions of the Old Pond (RDA 1).

The majority of IB-3 is vegetated with approximately 20% containing standing water or wetlands and

some small areas (<5%) of bare soil. The soil in IB-3 is predominantly fill consisting of bauxite residue,

cinders and imported natural soils of various types. The following subsections provide information on the

units included in IB 3.


6.3.1 IB-3a Brick Works/Childs Property

The Brick Works/Childs Property was the former location of the Sinter Plant. During World War II, the

demand for alumina exceeded the bauxite supply. In order to boost the production of alumina, the US

Government constructed the sintering plant to reprocess bauxite residue. The sintering plant used bauxite

residue, limestone and soda ash, heated in rotary kilns, to produce clinker, which was sent back to the

digestion process. The rotary kilns were, at first, coal fired, and later fired by natural gas.

The soil in this area is fill made up of bauxite residue, cinders and natural soils. IB-3a currently contains

the remnants of the sinter plant. The significance of data from IB-3a will be evaluated in the risk

assessments.

6.3.2 IB-3b Redevelopment Area

The Redevelopment Area is located on the south and southwestern perimeter of the Site with a small band

extending along the northwestern perimeter of RDA-1. This area contains various fill materials including

bauxite residue, cinders and natural soil materials. The area is almost entirely vegetated (75%) except for

areas of standing water (20+%) and very small areas of bare soil (<5%).

The eastern portion of the East Side Partners, Inc. property is currently being filled with soil imported

from off-site. This fill operation is presumably being conducted by the East Side Partners and is not

associated with the RI project. Because the fill operation commenced after the completion of the RI field

work, no information is available on the current or planned extent of fill, but an aerial photography survey

has been commissioned. Standing water is present in approximately 20% of IB-3b. The significance of

data from IB-3b will be presented in the risk assessments.

6.3.3 IB-3c Spent Potlining Stockpile Area

The SPL Stockpile Area is believed to be the storage area for SPL that was brought on-site in the late

1930s for the cryolite recovery process. This area appeared to have small amounts of SPL present on the

ground surface during the RI. The identification of the SPL was visual based on process knowledge by

project personnel. Records of the actual storage location of SPL on the Site were not identified.


Tetra Tech excavated nine test pits in the former SPL storage area in 2003. A total of 22 soil samples

were collected and submitted to Lancaster Laboratories for total cyanide analysis. The visibly identifiable

SPL material at the surface was removed in 2006.

Following the SPL removal, a geotextile filter material was placed on the entire graded surface of IB-3c,

and the majority of the area was covered with 2,500 cubic yards of clean soil, spread, and graded to

achieve a minimum six-inch thick layer and allow positive drainage. The soil was then fertilized and

seeded to provide for a vegetative cover.

A supplemental investigation was conducted to characterize subsurface conditions in this area. The

investigation consisted of seven soil borings to a depth of 10 feet each. This investigation was conducted

in 2007 and results are presented in Technical Memorandum 10 (Appendix A).

Review of the boring logs for the area indicates that the fill is between 3 and 6 feet thick. IB-3c is

predominantly fill, consisting of gypsum and bauxite residue, cinders, slag, bottom ash and imported

natural soils of various types. The underlying material is fine sands and clays likely in the Cahokia

formation. The significance of data from IB-3c will be evaluated in the risk assessments.

6.4 Investigative Block 4 – Areas with No Known Alcoa Activity

IB-4 consists of five subareas on the Site for which, although owned by Alcoa, no known specific activity

occurred during the operation of the plant. Three of the subareas are wet areas that contain wetland

vegetation and hydraulics and are known to contain standing water most of the year. One of the five

subareas is currently used as community ball fields. The final subarea is currently used as an active

commercial area. The following subsections provide a summary of each of the IB-4 subareas.

6.4.1 IB-4a North Wet Area

The North Wet Area is located along the northern border of the Site and consists of approximately 40

acres. IB-4a is approximately 50% vegetated, 10% bare soil and 40% standing water.

Review of the boring logs for the area indicates that the fill is between 8 and 10 feet thick. The

underlying material is fine sand likely in the Cahokia formation. The fill consists of cinders, bauxite


residue and some imported natural material. The significance of the analytical data from IB-4a will be

presented in the risk assessments.

6.4.2 IB-4b Triangle Wet Area

The Triangle Wet Area is located along the northeastern border of the Site and consists of approximately

15 acres. IB-4b is approximately 95% vegetated and 5% bare soil and standing water. Much of the area

of IB-4b is wet, but little standing water is present. No soil samples were collected in IB-4b. The

significance of the analytical data from IB-4b will be presented in the risk assessments.

6.4.3 IB-4c Ball Fields

The Ball Fields Area is located on the northwestern corner of the Site and consists of approximately 40

acres. IB-4c is mostly vegetated with bare soil in the infields. No standing water is normally present in

IB-4c. The soil in the area of the ball fields consists of brown clay fill, although cinders are present on

the surface in areas.

The boring logs for the area include only the 0-2-foot depth interval and indicate that the fill is cinders

and brown clay. Bauxite residue is present in the northern portion of the area at a depth below two feet

and extends offsite into the residential area to the north. Off-site borings indicate that the bauxite residue

does not extend as far north as Lake Drive, ending between the City right-of-way, south of the houses and

Lake Drive.

6.4.4 IB-4d Berm Wet Area

The Berm Wet Area is located between IB-1c and IB-4b, and is approximately three acres. The area

consists of a low-lying wetland. No surface or subsurface soil samples were collected in the area. The

surface water samples collected in IB-4d show the area to be similar in nature to the North Wet Area.

The relevance of the analytical data collected in IB 4d will be discussed in the risk assessments.


6.4.5 IB-4e Active Commercial Area

The Active Commercial Area is located on the western corner of the Site and is currently used for

industrial purposes. The area is several feet above the surrounding topography due to fill placed in the

area. No surface soil samples were collected from IB-4e due to the presence of fill placed after Alcoa

sold the property. Subsurface investigations in the area indicate that it is mostly underlain by bauxite

residue. The data from IB-4e will be evaluated in the risk assessments.

6.5 Groundwater

Groundwater occurs at approximately 8 to 16 feet below ground surface in the monitoring wells located

on the perimeter of the Site. The local groundwater occurs in the American Bottoms Aquifer, which was

historically used as a source of industrial groundwater in the vicinity of the Site. Currently, there is no

documented residential or municipal use of groundwater in the area. Industrial use of groundwater occurs

on the Site in the form of a pumping well on the Upchurch Redi-Mix Concrete property. Water from this

well is used in the manufacture of concrete. The completeness of the groundwater exposure pathway will

be evaluated in the human health risk assessment.


7.0 SUMMARY AND CONCLUSIONS

The Remedial Investigation at the North Alcoa Site, located in East St. Louis, Illinois was completed in

two phases. Phase 1 consisted of the majority of sampling of Site media including soil, surface water,

sediment and groundwater. Phase 2 consisted of a focused evaluation of the Site-specific exposure

concentrations of COPECS needed to reduce uncertainty in the ecological risk assessment.

In order to characterize the nature and extent of contamination on the Site, samples were collected of soil

(surface and subsurface), sediment and surface water from the 11 of the 12 subareas on the Site.

Investigative Block (IB) -3c, the Spent Potliner (SPL) Stockpiling Area was not sampled during the initial

Phase work, but test pits were dug to visually identify the extent of wastes. SPL was removed from this

area and subsurface characterization was conducted after the removal.

Most of the data were collected during the Phase 1 sampling efforts performed in the Fall of 2003.

Additional data needed to reduce uncertainty in the ecological risk assessment were collected as Phase 2

efforts in the Fall of 2004. The methods of sample collection, data validation and presentation of

analytical results are included in this report. The data have been submitted as an electronic deliverable to

the agency under separate cover as required by the AOC/SOW. The analytical results are presented in

tables and maps, and summary statistics of the results are also provided.

The data collected during the RI have identified the nature and extent of constituents related to the

alumina extraction and other processes carried out by Alcoa on the Site. The extent of the waste is based

primarily on visual observations of the presence of bauxite residue. The results of the RI indicate that

bauxite residue is present throughout the site area and may extend off-site approximately 100 feet at the

northwest corner of the Site. Other materials including cinders are present above and below the ground

surface throughout the Site. Gypsum material is present within IB-2, although IB-2 may be larger than

originally depicted in the vicinity of borings 1aUP016 and 1cU0020, which are just inside IB-1 near IB-2.

Maps of the nature and extent of contamination are provided in Figures 4-1a through 4-1e, 4-3, and 4-4.

Potential risks to human health and the environment are evaluated in the companion documents yet to be

submitted, Draft Revised Baseline Human Health Risk Assessment, Alcoa Former East St. Louis

Operations, East St. Louis, IL and Draft Revised Baseline Ecological Risk Assessment.


The FS will analyze various methods of providing containment of the wastes and evaluate each option or

combination of options, relative to the FS screening criteria, including the threshold criteria of protection

of human health and the environment.


8.0 REFERENCES

Alcoa Inc. and the City of East St. Louis, 2003. Remedial Investigation and Feasibility Study Work Plan,

North Alcoa Site, East St. Louis, Illinois. July 24. ———, 2004a. Draft Baseline Ecological Risk Assessment (BERA). Alcoa Former East St. Louis

Operations, East St. Louis, Illinois. ———, 2004b. Phase 2 Ecological Field Sampling Plan, North Alcoa Plant. East St. Louis, Illinois.

September. ———, 2009b. Draft Baseline Human Health Risk Assessment, Alcoa Former East St. Louis Operations,

East St. Louis, Illinois. (yet to be submitted) ———, 2009b. Draft Baseline Ecological Risk Assessment (BERA). Alcoa Former East St. Louis

Operations, East St. Louis, Illinois. (yet to be submitted) Burlington Environmental, 1992. Hydrogeologic Investigation Diesel-Fuel Release East St. Louis

Service Facility – ESDA Incident Number 913422. July 21. Eisler, R., 1987. Polycyclic aromatic hydrocarbon hazards to fish, wildlife, and invertebrates: a synoptic

review. Biological Report 85(1.11) U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, Laurel, MD.

Illinois Environmental Protection Agency (IEPA), 1997. IEPA, Bureau of Land. CERCLA Integrated

Site Assessment: Childs Property. ———, 1999. IEPA, Bureau of Land CERCLA Redevelopment Assessment for the Former Alcoa

Property. Illinois State Water Survey (ISWS), 1995. (Draft figures from an unpublished document showing

potentiometric surface and pumping data for East St. Louis), transmitted via email to Tetra Techon March 11, 2003 by Ken Hlinka (ISWS).

Schicht, 1965. Groundwater Development in East St. Louis Area, Illinois, Illinois State Water Survey,

Report of Investigation 51. United States Environmental Protection Agency (USEPA), 1988. Guidance for Conducting Remedial

Investigations and Feasibility Studies Under CERCLA. ———, 1996. Soil Screening Guidance: Technical Document, USEPA Document Number:

USEPA/540/R-95/128. July. ———, 1997. Ecological Risk Assessment Guidance for Superfund: Process for Designing and

Conducting Ecological Risk Assessments. Interim Final. June. ———, 1998. Guidelines for Ecological Risk Assessment. USEPA/630/R-95/002F. April.


———, 1999b. USEPA Contract Laboratory Program Functional Guidelines for Organic Data Review. Office of Emergency and Remedial Response. OSWER 9240.1-05A-P, PB99-963506, USEPA 540/R-99/008. October.

Zambrana Inc., 1999. American Bottoms Interior Flood Control Project; Biological Analysis of the

Former Alcoa Site. Prepared for U.S. Army Corps of Engineers. June 14. Freeze, R.A., and Cherry, J.A., 1979. Groundwater, Prentice-Hall Inc., Englewood Cliffs, N.J., 604 p. TIC#3476

TABLES

TABLE 2-1

MASTER LIST OF SAMPLESNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Geotechnical Suite(8)

Northing EastingModified

TAL(2)Other

inorganics(3) TCL(4) PAHs(5) Residue Suite(6)

Gypsum Suite(7) UW-MC UC SC SA TC CT PT MD

1a soil veg UP 1aUP001 705803 2309000 ag 1aUP001-1000 0-1.0 X1a soil veg UP 1aUP001 705803 2309000 ag 1aUP001-1001 1.0-2.0 X1a soil veg UP 1aUP001 705803 2309000 geotech 1aUP001-2000 0.0-2.0 X X X1a soil veg UP 1aUP001 705803 2309000 geotech 1aUP001-2001 2.0-4.0 X X1a soil veg UP 1aUP001 705803 2309000 geotech, agand -1125 9.0-11.0 X X X1a soil veg UP 1aUP001 705803 2309000 geotech 1aUP001-2003 16-18 X X1a soil veg UP 1aUP001 705803 2309000 geotech 1aUP001-2004 23-25 X X1a soil veg UP 1aUP001 705803 2309000 geotech 1aUP001-2005 30-32 X X1a soil veg UP 1aUP001 705803 2309000 chem 1aUP001-3000 0.0-2.0 X X1a soil veg UP 1aUP001 705803 2309000 chem 1aUP001-3001 2.0-10.0 X X1a soil veg UP 1aUP002 705814.37 2309598.854 ag 1aUP002-1002 0-1.0 X1a soil veg UP 1aUP002 705814.37 2309598.854 ag 1aUP002-1003 1.0-2.0 X1a soil veg UP 1aUP002 705814.37 2309598.854 chem 1aUP002-3002 0.0-2.0 X X1a soil veg UP 1aUP002 705814.37 2309598.854 chem 1aUP002-3003 2.0-10.0 X X1a soil veg UP 1aUP003 705823.822 2310000.499 ag 1aUP003-1004 0-1.0 X1a soil veg UP 1aUP003 705823.822 2310000.499 ag 1aUP003-1005 1.0-2.0 X1a soil veg UP 1aUP003 705823.822 2310000.499 geotech 1aUP003-2006 0.0-2.0 X X X X1a soil veg UP 1aUP003 705823.822 2310000.499 geotech 1aUP003-2007 2.0-4.0 X X1a soil veg UP 1aUP003 705823.822 2310000.499 chem 1aUP003-3004 0.0-2.0 X X X1a soil veg UP 1aUP003 705823.822 2310000.499 chem 1aUP003-3005 2.0-10.0 X X1a soil veg UP 1aUP004 705797.406 2310403.935 ag 1aUP004-1006 0-1.0 X1a soil veg UP 1aUP004 705797.406 2310403.935 ag 1aUP004-1007 1.0-2.0 X1a soil veg UP 1aUP004 705797.406 2310403.935 chem 1aUP004-3006 0.0-2.0 X X1a soil veg UP 1aUP004 705797.406 2310403.935 chem 1aUP004-3007 2.0-10.0 X X1a soil veg UP 1aUP005 705598 2308600 ag 1aUP005-1008 0-1.0 X1a soil veg UP 1aUP005 705598 2308600 ag 1aUP005-1009 1.0-2.0 X1a soil veg UP 1aUP005 705598 2308600 chem 1aUP005-3008 0.0-2.0 X X1a soil veg UP 1aUP005 705598 2308600 chem 1aUP005-3009 2.0-10.0 X X1a soil non veg UP 1aUP006 705609.041 2309190.113 ag 1aUP006-1010 0-1.0 X1a soil non veg UP 1aUP006 705609.041 2309190.113 ag 1aUP006-1011 1.0-2.0 X1a soil non veg UP 1aUP006 705609.041 2309190.113 chem 1aUP006-3010 0.0-2.0 X X1a soil non veg UP 1aUP006 705609.041 2309190.113 chem 1aUP006-3011 2.0-10.0 X X1a soil non veg UP 1aUP007 705692.335 2309358.869 ag 1aUP007-1012 0-1.0 X1a soil non veg UP 1aUP007 705692.335 2309358.869 ag 1aUP007-1013 1.0-2.0 X1a soil non veg UP 1aUP007 705692.335 2309358.869 chem 1aUP007-3012 0.0-2.0 X X1a soil non veg UP 1aUP007 705692.335 2309358.869 chem 1aUP007-3013 2.0-10.0 X X X1a soil non veg UP 1aUP008 705673.241 2309599.475 ag 1aUP008-1014 0-1.0 X1a soil non veg UP 1aUP008 705673.241 2309599.475 ag 1aUP008-1015 1.0-2.0 X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech 1aUP008-2008 0.0-2.0 X X X X X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech 1aUP008-2009 2.0-4.0 X X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech, agand -1126 9.0-11.0 X X X X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech 1aUP008-2011 16-18 X X X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech 1aUP008-2012 23-25 X X1a soil non veg UP 1aUP008 705673.241 2309599.475 geotech 1aUP008-2013 30-32 X X1a soil non veg UP 1aUP008 705673.241 2309599.475 chem 1aUP008-3014 0.0-2.0 X X1a soil non veg UP 1aUP008 705673.241 2309599.475 chem 1aUP008-3015 2.0-10.0 X X

AgronomyCoordinates Chemical AnalysesStation ID Sample

Type Sample ID(1) Sample Depth (ft)

Investigative Block Matrix Habitat Land Use

J:\East St. Louis RFS\RI\Tables\Table 2-1.xls 1 of 14

TABLE 2-1




TAL(2)Other






1a soil non veg UP 1aUP009 705600 2309800 ag 1aUP009-1016 0-1.0 X1a soil non veg UP 1aUP009 705600 2309800 ag 1aUP009-1017 1.0-2.0 X1a soil non veg UP 1aUP009 705600 2309800 chem 1aUP008-3014 0.0-2.0 X X1a soil non veg UP 1aUP009 705600 2309800 chem 1aUP008-3015 2.0-10.0 X X1a soil non veg UP 1aUP010 705399 2308400 ag 1aUP010-1018 0-1.0 X1a soil non veg UP 1aUP010 705399 2308400 ag 1aUP010-1019 1.0-2.0 X1a soil non veg UP 1aUP010 705399 2308400 chem 1aUP009-3016 0.0-2.0 X X1a soil non veg UP 1aUP010 705399 2308400 chem 1aUP009-3017 2.0-10.0 X X1a soil non veg UP 1aUP011 705400 2309200 ag 1aUP011-1020 0-1.0 X1a soil non veg UP 1aUP011 705400 2309200 ag 1aUP011-1021 1.0-2.0 X1a soil non veg UP 1aUP011 705400 2309200 chem 1aUP010-3018 0.0-2.0 X X1a soil non veg UP 1aUP011 705400 2309200 chem 1aUP010-3019 2.0-10.0 X X1a soil veg UP 1aUP012 705422.515 2309399.02 ag 1aUP012-1022 0-1.0 X1a soil veg UP 1aUP012 705422.515 2309399.02 ag 1aUP012-1023 1.0-2.0 X1a soil veg UP 1aUP012 705422.515 2309399.02 chem 1aUP012-3022 0.0-2.0 X X1a soil veg UP 1aUP012 705422.515 2309399.02 chem 1aUP012-3023 2.0-10.0 X X1a soil non veg UP 1aUP013 705400 2309800 ag 1aUP013-1024 0-1.0 X1a soil non veg UP 1aUP013 705400 2309800 ag 1aUP013-1025 1.0-2.0 X1a soil non veg UP 1aUP013 705400 2309800 chem 1aUP013-3024 0.0-2.0 X X X1a soil non veg UP 1aUP013 705400 2309800 chem 1aUP013-3025 2.0-10.0 X X1a soil non veg UP 1aUP014 705400 2310000 ag 1aUP014-1026 0-1.0 X1a soil non veg UP 1aUP014 705400 2310000 ag 1aUP014-1027 1.0-2.0 X1a soil non veg UP 1aUP014 705400 2310000 chem 1aUP014-3026 0.0-2.0 X X1a soil non veg UP 1aUP014 705400 2310000 chem 1aUP014-3027 2.0-10.0 X X1a soil veg UP 1aUP015 705400 2310200 ag 1aUP015-1028 0-1.0 X1a soil veg UP 1aUP015 705400 2310200 ag 1aUP015-1029 1.0-2.0 X1a soil veg UP 1aUP015 705400 2310200 chem 1aUP015-3028 0.0-2.0 X X1a soil veg UP 1aUP015 705400 2310200 chem 1aUP015-3029 2.0-10.0 X X1a soil veg UP 1aUP016 705199 2308600 ag 1aUP016-1030 0-1.0 X1a soil veg UP 1aUP016 705199 2308600 ag 1aUP016-1031 1.0-2.0 X1a soil veg UP 1aUP016 705199 2308600 chem 1aUP016-3030 0.0-2.0 X X1a soil veg UP 1aUP016 705199 2308600 chem 1aUP016-3031 2.0-10.0 X X1a soil non veg UP 1aUP017 705199 2309000 ag 1aUP017-1032 0-1.0 X1a soil non veg UP 1aUP017 705199 2309000 ag 1aUP017-1033 1.0-2.0 X1a soil non veg UP 1aUP017 705199 2309000 chem 1aUP017-3032 0.0-2.0 X X1a soil non veg UP 1aUP017 705199 2309000 chem 1aUP017-3033 2.0-10.0 X X1a soil veg UP 1aUP018 705200 2309200 ag 1aUP018-1034 0-1.0 X1a soil veg UP 1aUP018 705200 2309200 ag 1aUP018-1035 1.0-2.0 X1a soil veg UP 1aUP018 705200 2309200 geotech 1aUP018-2014 0.0-2.0 X X1a soil veg UP 1aUP018 705200 2309200 geotech 1aUP018-2015 2.0-4.0 X X1a soil veg UP 1aUP018 705200 2309200 geotech, agand -1127 9.0-11.0 X X X1a soil veg UP 1aUP018 705200 2309200 geotech 1aUP018-2017 16-18 X X1a soil veg UP 1aUP018 705200 2309200 geotech 1aUP018-2018 23-25 X X1a soil veg UP 1aUP018 705200 2309200 geotech 1aUP018-2019 30-32 X X1a soil veg UP 1aUP018 705200 2309200 chem 1aUP018-3034 0.0-2.0 X X1a soil veg UP 1aUP018 705200 2309200 chem 1aUP018-3035 2.0-10.0 X X X


TABLE 2-1




TAL(2)Other






1a soil veg UP 1aUP019 705200 2309800 ag 1aUP019-1036 0-1.0 X1a soil veg UP 1aUP019 705200 2309800 ag 1aUP019-1037 1.0-2.0 X1a soil veg UP 1aUP019 705200 2309800 chem 1aUP019-3036 0.0-2.0 X X1a soil veg UP 1aUP019 705200 2309800 chem 1aUP019-3037 2.0-10.0 X X1a soil non veg UP 1aUP020 705205.586 2310008.019 ag 1aUP020-1038 0-1.0 X1a soil non veg UP 1aUP020 705205.586 2310008.019 ag 1aUP020-1039 1.0-2.0 X1a soil non veg UP 1aUP020 705205.586 2310008.019 chem 1aUP020-3038 0.0-2.0 X X1a soil non veg UP 1aUP020 705205.586 2310008.019 chem 1aUP020-3039 2.0-10.0 X X1b soil veg UP 1bUP001 705004.438 2309681.422 ag 1bUP001-1040 0-1.0 X1b soil veg UP 1bUP001 705004.438 2309681.422 ag 1bUP001-1041 1.0-2.0 X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech 1bUP001-2020 0.0-2.0 X X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech 1bUP001-2021 2.0-4.0 X X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech, agand -1128 9.0-11.0 X X X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech 1bUP001-2023 16-18 X X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech 1bUP001-2024 23-25 X X1b soil veg UP 1bUP001 705004.438 2309681.422 geotech 1bUP001-2025 30-32 X X1b soil veg UP 1bUP001 705004.438 2309681.422 chem 1bUP001-3040 0.0-2.0 X X1b soil veg UP 1bUP001 705004.438 2309681.422 chem 1bUP001-3041 2.0-10.0 X X1b soil veg UP 1bUP002 705001 2310000 ag 1bUP002-1042 0-1.0 X1b soil veg UP 1bUP002 705001 2310000 ag 1bUP002-1043 1.0-2.0 X1b soil veg UP 1bUP002 705001 2310000 chem 1bUP002-3042 0.0-2.0 X X1b soil veg UP 1bUP002 705001 2310000 chem 1bUP002-3043 2.0-10.0 X X1b soil veg UP 1bUP003 704800 2309000 ag 1bUP003-1044 0-1.0 X1b soil veg UP 1bUP003 704800 2309000 ag 1bUP003-1045 1.0-2.0 X1b soil veg UP 1bUP003 704800 2309000 geotech 1bUP003-2026 0.0-2.0 X X1b soil veg UP 1bUP003 704800 2309000 geotech 1bUP003-2027 2.0-4.0 X X1b soil veg UP 1bUP003 704800 2309000 geotech, agand -1129 9.0-11.0 X X X1b soil veg UP 1bUP003 704800 2309000 geotech 1bUP003-2029 16-18 X X1b soil veg UP 1bUP003 704800 2309000 geotech 1bUP003-2030 23-25 X X1b soil veg UP 1bUP003 704800 2309000 geotech 1bUP003-2031 30-32 X X1b soil veg UP 1bUP003 704800 2309000 chem 1bUP003-3044 0.0-2.0 X X1b soil veg UP 1bUP003 704800 2309000 chem 1bUP003-3045 2.0-10.0 X X1b soil veg UP 1bUP004 704600 2309200 ag 1bUP004-1046 0-1.0 X1b soil veg UP 1bUP004 704600 2309200 ag 1bUP004-1047 1.0-2.0 X1b soil veg UP 1bUP004 704600 2309200 chem 1bUP004-3046 0.0-2.0 X X1b soil veg UP 1bUP004 704600 2309200 chem 1bUP004-3047 2.0-10.0 X X1b soil veg UP 1bUP005 704600 2309600 ag 1bUP005-1048 0-1.0 X1b soil veg UP 1bUP005 704600 2309600 ag 1bUP005-1049 1.0-2.0 X1b soil veg UP 1bUP005 704600 2309600 geotech 1bUP005-2032 0.0-2.0 X X X1b soil veg UP 1bUP005 704600 2309600 geotech 1bUP005-2034 2.0-4.0 X X1b soil veg UP 1bUP005 704600 2309600 geotech, agand -1130 9.0-11.0 X X X X X X1b soil veg UP 1bUP005 704600 2309600 geotech 1bUP005-2036 16-18 X X1b soil veg UP 1bUP005 704600 2309600 geotech 1bUP005-2037 23-25 X X1b soil veg UP 1bUP005 704600 2309600 geotech 1bUP005-2038 30-32 X X1b soil veg UP 1bUP005 704600 2309600 chem 1bUP005-3048 0.0-2.0 X X1b soil veg UP 1bUP005 704600 2309600 chem 1bUP005-3049 2.0-10.0 X X


TABLE 2-1




TAL(2)Other






1b soil non veg UP 1bUP006 704600 2309800 ag 1bUP006-1050 0-1.0 X1b soil non veg UP 1bUP006 704600 2309800 ag 1bUP006-1051 1.0-2.0 X1b soil non veg UP 1bUP006 704600 2309800 chem 1bUP006-3050 0.0-2.0 X X1b soil non veg UP 1bUP006 704600 2309800 chem 1bUP006-3051 2.0-10.0 X X1b soil non veg UP 1bUP007 704400 2309600 ag 1bUP007-1052 0-1.0 X1b soil non veg UP 1bUP007 704400 2309600 ag 1bUP007-1053 1.0-2.0 X1b soil non veg UP 1bUP007 704400 2309600 chem 1bUP007-3052 0.0-2.0 X X1b soil non veg UP 1bUP007 704400 2309600 chem 1bUP007-3053 2.0-10.0 X X X1b soil veg UP 1bUP008 704199 2309400 ag 1bUP008-1054 0-1.0 X1b soil veg UP 1bUP008 704199 2309400 ag 1bUP008-1055 1.0-2.0 X1b soil veg UP 1bUP008 704199 2309400 chem 1bUP008-3054 0.0-2.0 X X1b soil veg UP 1bUP008 704199 2309400 chem 1bUP008-3055 2.0-10.0 X X1b soil non veg UP 1bUP009 704199 2309600 ag 1bUP009-1056 0-1.0 X1b soil non veg UP 1bUP009 704199 2309600 ag 1bUP009-1057 1.0-2.0 X1b soil non veg UP 1bUP009 704199 2309600 geotech 1bUP009-2039 0.0-2.0 X X1b soil non veg UP 1bUP009 704199 2309600 geotech 1bUP009-2040 2.0-4.0 X X1b soil non veg UP 1bUP009 704199 2309600 geotech, agand -1131 9.0-11.0 X X X1b soil non veg UP 1bUP009 704199 2309600 geotech 1bUP009-2042 16-18 X X X X1b soil non veg UP 1bUP009 704199 2309600 geotech 1bUP009-2043 23-25 X X1b soil non veg UP 1bUP009 704199 2309600 geotech 1bUP009-2044 30-32 X X1b soil non veg UP 1bUP009 704199 2309600 chem 1bUP009-3056 0.0-2.0 X X1b soil non veg UP 1bUP009 704199 2309600 chem 1bUP009-3057 2.0-10.0 X X X1b soil non veg UP 1bUP010 704000 2310400 ag 1bUP010-1058 0-1.0 X1b soil non veg UP 1bUP010 704000 2310400 ag 1bUP010-1059 1.0-2.0 X1b soil non veg UP 1bUP010 704000 2310400 chem 1bUP010-3058 0.0-2.0 X X1b soil non veg UP 1bUP010 704000 2310400 chem 1bUP010-3059 2.0-10.0 X X1b soil non veg UP 1bUP011 703800 2310000 ag 1bUP011-1060 0-1.0 X1b soil non veg UP 1bUP011 703800 2310000 ag 1bUP011-1061 1.0-2.0 X1b soil non veg UP 1bUP011 703800 2310000 geotech 1bUP011-2045 0.0-2.0 X X X1b soil non veg UP 1bUP011 703800 2310000 geotech 1bUP011-2046 2.0-4.0 X X1b soil non veg UP 1bUP011 703800 2310000 geotech, agand -1132 9.0-11.0 X X X1b soil non veg UP 1bUP011 703800 2310000 geotech 1bUP011-2048 16-18 X X1b soil non veg UP 1bUP011 703800 2310000 geotech 1bUP011-2049 23-25 X X1b soil non veg UP 1bUP011 703800 2310000 geotech 1bUP011-2050 30-32 X X X1b soil non veg UP 1bUP011 703800 2310000 chem 1bUP011-3060 0.0-2.0 X X X1b soil non veg UP 1bUP011 703800 2310000 chem 1bUP011-3061 2.0-10.0 X X1b soil non veg UP 1bUP012 703800 2310200 ag 1bUP012-1062 0-1.0 X1b soil non veg UP 1bUP012 703800 2310200 ag 1bUP012-1063 1.0-2.0 X1b soil non veg UP 1bUP012 703800 2310200 chem 1bUP012-3062 0.0-2.0 X X1b soil non veg UP 1bUP012 703800 2310200 chem 1bUP012-3063 2.0-10.0 X X1b soil veg UP 1bUP013 703800 2310400 ag 1bUP013-1064 0-1.0 X1b soil veg UP 1bUP013 703800 2310400 ag 1bUP013-1065 1.0-2.0 X1b soil veg UP 1bUP013 703800 2310400 chem 1bUP013-3064 0.0-2.0 X X X1b soil veg UP 1bUP013 703800 2310400 chem 1bUP013-3065 2.0-10.0 X X1b soil veg UP 1bUP014 703600 2310000 ag 1bUP014-1066 0-1.0 X1b soil veg UP 1bUP014 703600 2310000 ag 1bUP014-1067 1.0-2.0 X


TABLE 2-1




TAL(2)Other






1b soil veg UP 1bUP014 703600 2310000 chem 1bUP014-3066 0.0-2.0 X X1b soil veg UP 1bUP014 703600 2310000 chem 1bUP014-3067 2.0-10.0 X X1c soil veg UP 1cUP001 705800 2310600 ag 1cUP001-1068 0-1.0 X1c soil veg UP 1cUP001 705800 2310600 ag 1cUP001-1069 1.0-2.0 X1c soil veg UP 1cUP001 705800 2310600 geotech 1cUP001-2051 0.0-2.0 X X1c soil veg UP 1cUP001 705800 2310600 geotech 1cUP001-2052 2.0-4.0 X X1c soil veg UP 1cUP001 705800 2310600 geotech, agand -1133 9.0-11.0 X X X1c soil veg UP 1cUP001 705800 2310600 geotech 1cUP001-2054 16-18 X X1c soil veg UP 1cUP001 705800 2310600 geotech 1cUP001-2055 23-25 X X1c soil veg UP 1cUP001 705800 2310600 geotech 1cUP001-2056 30-32 X X1c soil veg UP 1cUP001 705800 2310600 chem 1cUP001-3068 0.0-2.0 X X1c soil veg UP 1cUP001 705800 2310600 chem 1cUP001-3069 2.0-10.0 X X1c soil veg UP 1cUP002 705800 2310800 ag 1cUP002-1070 0-1.0 X1c soil veg UP 1cUP002 705800 2310800 ag 1cUP002-1071 1.0-2.0 X1c soil veg UP 1cUP002 705800 2310800 chem 1cUP002-3070 0.0-2.0 X X1c soil veg UP 1cUP002 705800 2310800 chem 1cUP002-3071 2.0-10.0 X X1c soil veg UP 1cUP003 705791.644 2311167.268 ag 1cUP003-1072 0-1.0 X1c soil veg UP 1cUP003 705791.644 2311167.268 ag 1cUP003-1073 1.0-2.0 X1c soil veg UP 1cUP003 705791.644 2311167.268 chem 1cUP003-3072 0.0-2.0 X X1c soil veg UP 1cUP003 705791.644 2311167.268 chem 1cUP003-3073 2.0-10.0 X X1c soil veg UP 1cUP004 705600 2310600 ag 1cUP004-1074 0-1.0 X1c soil veg UP 1cUP004 705600 2310600 ag 1cUP004-1075 1.0-2.0 X1c soil veg UP 1cUP004 705600 2310600 chem 1cUP004-3074 0.0-2.0 X X1c soil veg UP 1cUP004 705600 2310600 chem 1cUP004-3075 2.0-10.0 X X1c soil non veg UP 1cUP005 705600 2310800 ag 1cUP005-1076 0-1.0 X1c soil non veg UP 1cUP005 705600 2310800 ag 1cUP005-1078 1.0-2.0 X1c soil non veg UP 1cUP005 705600 2310800 chem 1cUP005-3076 0.0-2.0 X X1c soil non veg UP 1cUP005 705600 2310800 chem 1cUP005-3077 2.0-10.0 X X1c soil non veg UP 1cUP006 705600 2311000 ag 1cUP006-1079 0-1.0 X1c soil non veg UP 1cUP006 705600 2311000 ag 1cUP006-1080 1.0-2.0 X1c soil non veg UP 1cUP006 705600 2311000 geotech 1cUP006-2057 0.0-2.0 X X X1c soil non veg UP 1cUP006 705600 2311000 geotech 1cUP006-2058 2.0-4.0 X X1c soil non veg UP 1cUP006 705600 2311000 geotech, agand -1134 9.0-11.0 X X X X1c soil non veg UP 1cUP006 705600 2311000 geotech 1cUP006-2060 16-18 X X1c soil non veg UP 1cUP006 705600 2311000 geotech 1cUP006-2061 23-25 X X1c soil non veg UP 1cUP006 705600 2311000 geotech 1cUP006-2062 30-32 X X1c soil non veg UP 1cUP006 705600 2311000 chem 1cUP006-3078 0.0-2.0 X X1c soil non veg UP 1cUP006 705600 2311000 chem 1cUP006-3079 2.0-10.0 X X X1c soil veg UP 1cUP007 705600 2311400 ag 1cUP007-1081 0-1.0 X1c soil veg UP 1cUP007 705600 2311400 ag 1cUP007-1082 1.0-2.0 X1c soil veg UP 1cUP007 705600 2311400 chem 1cUP007-3080 0.0-2.0 X X1c soil veg UP 1cUP007 705600 2311400 chem 1cUP007-3081 2.0-10.0 X X1c soil veg UP 1cUP008 705400 2310400 ag 1cUP008-1083 0-1.0 X1c soil veg UP 1cUP008 705400 2310400 ag 1cUP008-1084 1.0-2.0 X1c soil veg UP 1cUP008 705400 2310400 chem 1cUP008-3082 0.0-2.0 X X X1c soil veg UP 1cUP008 705400 2310400 chem 1cUP008-3083 2.0-10.0 X X


TABLE 2-1




TAL(2)Other






1c soil non veg UP 1cUP009 705400 2310600 ag 1cUP009-1085 0-1.0 X1c soil non veg UP 1cUP009 705400 2310600 ag 1cUP009-1086 1.0-2.0 X1c soil non veg UP 1cUP009 705400 2310600 chem 1cUP009-3084 0.0-2.0 X X1c soil non veg UP 1cUP009 705400 2310600 chem 1cUP009-3085 2.0-10.0 X X1c soil non veg UP 1cUP010 705400 2311200 ag 1cUP010-1087 0-1.0 X1c soil non veg UP 1cUP010 705400 2311200 ag 1cUP010-1088 1.0-2.0 X1c soil non veg UP 1cUP010 705400 2311200 chem 1cUP010-3086 0.0-2.0 X X1c soil non veg UP 1cUP010 705400 2311200 chem 1cUP010-3087 2.0-10.0 X X1c soil veg UP 1cUP011 705200 2310200 ag 1cUP011-1089 0-1.0 X1c soil veg UP 1cUP011 705200 2310200 ag 1cUP011-1090 1.0-2.0 X1c soil veg UP 1cUP011 705200 2310200 chem 1cUP011-3088 0.0-2.0 X X1c soil veg UP 1cUP011 705200 2310200 chem 1cUP011-3089 2.0-10.0 X X1c soil non veg UP 1cUP012 705200 2310600 ag 1cUP012-1091 0-1.0 X1c soil non veg UP 1cUP012 705200 2310600 ag 1cUP012-1092 1.0-2.0 X1c soil non veg UP 1cUP012 705200 2310600 chem 1cUP012-3090 0.0-2.0 X X1c soil non veg UP 1cUP012 705200 2310600 chem 1cUP012-3091 2.0-10.0 X X1c soil non veg UP 1cUP013 705200 2311400 ag 1cUP013-1093 0-1.0 X1c soil non veg UP 1cUP013 705200 2311400 ag 1cUP013-1094 1.0-2.0 X1c soil non veg UP 1cUP013 705200 2311400 geotech 1cUP013-2063 0.0-2.0 X X X X1c soil non veg UP 1cUP013 705200 2311400 geotech 1cUP013-2064 2.0-4.0 X X X1c soil non veg UP 1cUP013 705200 2311400 geotech, agand -1135 9.0-11.0 X X X X1c soil non veg UP 1cUP013 705200 2311400 geotech 1cUP013-2066 16-18 X X X1c soil non veg UP 1cUP013 705200 2311400 geotech 1cUP013-2067 23-25 X X1c soil non veg UP 1cUP013 705200 2311400 geotech 1cUP013-2068 30-32 X X1c soil non veg UP 1cUP013 705200 2311400 chem 1cUP013-3092 0.0-2.0 X X X1c soil non veg UP 1cUP013 705200 2311400 chem 1cUP013-3093 2.0-10.0 X X1c soil veg UP 1cUP014 705200 2311600 ag 1cUP014-1095 0-1.0 X1c soil veg UP 1cUP014 705200 2311600 ag 1cUP014-1096 1.0-2.0 X1c soil veg UP 1cUP014 705200 2311600 chem 1cUP014-3094 0.0-2.0 X X1c soil non veg UP 1cUP014 705200 2311600 chem 1cUP014-3095 2.0-10.0 X X1c soil non veg UP 1cUP015 705001 2310400 ag 1cUP015-1097 0-1.0 X1c soil non veg UP 1cUP015 705001 2310400 ag 1cUP015-1098 1.0-2.0 X1c soil non veg UP 1cUP015 705001 2310400 geotech 1cUP015-2069 0.0-2.0 X X X1c soil non veg UP 1cUP015 705001 2310400 geotech 1cUP015-2070 2.0-4.0 X X1c soil non veg UP 1cUP015 705001 2310400 geotech, ag1cUP015-2071 9.0-11.0 X X X1c soil non veg UP 1cUP015 705001 2310400 geotech 1cUP015-2072 16-18 X X1c soil non veg UP 1cUP015 705001 2310400 geotech 1cUP015-2073 23-25 X X1c soil non veg UP 1cUP015 705001 2310400 geotech 1cUP015-2074 30-32 X X1c soil non veg UP 1cUP015 705001 2310400 chem 1cUP015-3096 0.0-2.0 X X1c soil non veg UP 1cUP015 705001 2310400 chem 1cUP015-3097 2.0-10.0 X X1c soil non veg UP 1cUP016 705001 2311400 ag 1cUP016-1099 0-1.0 X1c soil non veg UP 1cUP016 705001 2311400 ag 1cUP016-1100 1.0-2.0 X1c soil non veg UP 1cUP016 705001 2311400 chem 1cUP016-3098 0.0-2.0 X X1c soil non veg UP 1cUP016 705001 2311400 chem 1cUP016-3099 2.0-10.01c soil veg UP 1cUP017 704990.881 2311608.63 ag 1cUP017-1101 0-1.0 X1c soil veg UP 1cUP017 704990.881 2311608.63 ag 1cUP017-1102 1.0-2.0 X


TABLE 2-1




TAL(2)Other






1c soil veg UP 1cUP017 704990.881 2311608.63 chem 1cUP017-3100 0.0-2.0 X X1c soil veg UP 1cUP017 704990.881 2311608.63 chem 1cUP017-3101 2.0-10.0 X X1c soil non veg UP 1cUP018 704800 2311000 ag 1cUP018-1103 0-1.0 X1c soil non veg UP 1cUP018 704800 2311000 ag 1cUP018-1104 1.0-2.0 X1c soil non veg UP 1cUP018 704800 2311000 chem 1cUP018-3102 0.0-2.0 X X1c soil non veg UP 1cUP018 704800 2311000 chem 1cUP018-3103 2.0-10.0 X X1c soil non veg UP 1cUP019 704800 2311200 ag 1cUP019-1105 0-1.0 X1c soil non veg UP 1cUP019 704800 2311200 ag 1cUP019-1106 1.0-2.0 X1c soil non veg UP 1cUP019 704800 2311200 chem 1cUP019-3104 0.0-2.0 X X1c soil non veg UP 1cUP019 704800 2311200 chem 1cUP019-3105 2.0-10.0 X X1c soil veg UP 1cUP020 704795.8 2311442.44 ag 1cUP020-1107 0-1.0 X1c soil veg UP 1cUP020 704795.8 2311442.44 ag 1cUP020-1108 1.0-2.0 X1c soil veg UP 1cUP020 704795.8 2311442.44 chem 1cUP020-3106 0.0-2.0 X X1c soil veg UP 1cUP020 704795.8 2311442.44 chem 1cUP020-3107 2.0-10.0 X X X

2 soil non veg UP 2UP001 706073 2309600 ag 2UP001-1109 0-1.0 X2 soil non veg UP 2UP001 706073 2309600 ag 2UP001-1110 1.0-2.0 X2 soil non veg UP 2UP001 706073 2309600 geotech 2UP001-2075 0.0-2.0 X X2 soil non veg UP 2UP001 706073 2309600 geotech 2UP001-2076 2.0-4.0 X X X2 soil non veg UP 2UP001 706073 2309600 geotech, chand -3360 9.0-11.0 X X X X2 soil non veg UP 2UP001 706073 2309600 geotech, chand -3361 16-18 X X X X X2 soil non veg UP 2UP001 706073 2309600 geotech 2UP001-2079 23-25 X X X2 soil non veg UP 2UP001 706073 2309600 geotech, chand - 3362 30-32 X X X X2 soil non veg UP 2UP001 706073 2309600 chem 2UP001-3108 0.0-2.0 X X2 soil non veg UP 2UP002 705911.086 2311097.259 ag 2UP002-1111 0-1.0 X2 soil non veg UP 2UP002 705911.086 2311097.259 ag 2UP002-1112 1.0-2.0 X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech 2UP002-2081 0.0-2.0 X X X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech 2UP002-2082 2.0-4.0 X X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech, chand -3363 9.0-11.0 X X X X X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech, chand - 3364 16-18 X X X X X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech 2UP002-2085 23-25 X X2 soil non veg UP 2UP002 705911.086 2311097.259 geotech 2UP002-2086 30-32 X X2 soil non veg UP 2UP002 705911.086 2311097.259 chem 2UP002-3109 0.0-2.0 X X2 soil non veg UP 2UP003 705490.276 2311545.073 ag 2UP003-1113 0-1.0 X2 soil non veg UP 2UP003 705490.276 2311545.073 ag 2UP003-1114 1.0-2.0 X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech 2UP003-2086 0.0-2.0 X X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech 2UP003-2087 2.0-4.0 X X X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech, chand -3365 9.0-11.0 X X X X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech, chand -3366 16-18 X X X X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech 2UP003-2090 23-25 X X X2 soil non veg UP 2UP003 705490.276 2311545.073 geotech, ch2091and -3367 30-32 X X X X2 soil non veg UP 2UP003 705490.276 2311545.073 chem 2UP003-3110 0.0-2.0 X X2 soil non veg UP 2UP004 704663.912 2311635.675 ag 2UP004-1115 0-1.0 X2 soil non veg UP 2UP004 704663.912 2311635.675 ag 2UP004-1116 1.0-2.0 X2 soil non veg UP 2UP004 704663.912 2311635.675 geotech 2UP004-2092 0.0-2.0 X X2 soil non veg UP 2UP004 704663.912 2311635.675 geotech 2UP004-2093 2.0-4.0 X X2 soil non veg UP 2UP004 704663.912 2311635.675 geotech, chand -3368 9.0-11.0 X X X X X


TABLE 2-1




TAL(2)Other






2 soil non veg UP 2UP004 704663.912 2311635.675 geotech, chand -3369 16-18 X X X X X2 soil non veg UP 2UP004 704663.912 2311635.675 geotech 2UP004-2096 23-25 X X X2 soil non veg UP 2UP004 704663.912 2311635.675 geotech 2UP004-2097 30-32 X X2 soil non veg UP 2UP004 704663.912 2311635.675 chem 2UP004-3111 0.0-2.0 X X2 soil non veg UP 2UP005 704550.224 2309011.348 ag 2UP005-1117 0-1.0 X2 soil non veg UP 2UP005 704550.224 2309011.348 ag 2UP005-1118 1.0-2.0 X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech 2UP005-2098 0.0-2.0 X X X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech 2UP005-2099 2.0-4.0 X X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech, chand -3370 9.0-11.0 X X X X X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech, chand -3371 16-18 X X X X X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech 2UP005-2102 23-25 X X X2 soil non veg UP 2UP005 704550.224 2309011.348 geotech, chand -3372 30-32 X X X X2 soil non veg UP 2UP005 704550.224 2309011.348 chem 2UP005-3112 0.0-2.0 X X2 soil non veg UP 2UP006 704243 2311220 ag 2UP006-1119 0-1.0 X2 soil non veg UP 2UP006 704243 2311220 ag 2UP006-1120 1.0-2.0 X2 soil non veg UP 2UP006 704243 2311220 geotech 2UP006-2104 0.0-2.0 X X X2 soil non veg UP 2UP006 704243 2311220 geotech 2UP006-2105 2.0-4.0 X X X2 soil non veg UP 2UP006 704243 2311220 geotech, chand -3373 9.0-11.0 X X X X X X2 soil non veg UP 2UP006 704243 2311220 geotech, chand -3374 16-18 X X X X X2 soil non veg UP 2UP006 704243 2311220 geotech 2UP006-2108 23-25 X X X X2 soil non veg UP 2UP006 704243 2311220 geotech 2UP006-2109 30-32 X X2 soil non veg UP 2UP006 704243 2311220 chem 2UP006-3113 0.0-2.0 X X X2 soil non veg UP 2UP007 703796.645 2309697.39 ag 2UP007-1121 0-1.0 X2 soil non veg UP 2UP007 703796.645 2309697.39 ag 2UP007-1122 1.0-2.0 X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech 2UP007-2120 0.0-2.0 X X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech 2UP007-2121 2.0-4.0 X X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech, chand -3375 9.0-11.0 X X X X X X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech, chand -3376 16-18 X X X X X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech 2UP007-2124 23-25 X X X2 soil non veg UP 2UP007 703796.645 2309697.39 geotech, chand -3377 30-32 X X X X2 soil non veg UP 2UP007 703796.645 2309697.39 chem 2UP007-3114 0.0-2.0 X X2 soil non veg UP 2UP008 703558 2310440 ag 2UP008-1123 0-1.0 X2 soil non veg UP 2UP008 703558 2310440 ag 2UP008-1124 1.0-2.0 X2 soil non veg UP 2UP008 703558 2310440 geotech 2UP008-2126 0.0-2.0 X X2 soil non veg UP 2UP008 703558 2310440 geotech 2UP008-2127 2.0-4.0 X X2 soil non veg UP 2UP008 703558 2310440 geotech, chand -3378 9.0-11.0 X X X X X X X X2 soil non veg UP 2UP008 703558 2310440 geotech, chand -3379 16-18 X X X X2 soil non veg UP 2UP008 703558 2310440 geotech 2UP008-2130 23-25 X X X X2 soil non veg UP 2UP008 703558 2310440 geotech 2UP008-2131 30-32 X X2 soil non veg UP 2UP008 703558 2310440 chem 2UP008-3115 0.0-2.0 X X

3a soil ind UP 3aUP001 703655.906 2308801.463 chem 3aUP001-3116 0.0-2.0 X X X3a soil ind UP 3aUP002 703449.992 2308598.945 chem 3aUP002-3117 0.0-2.0 X X X X3a soil ind UP 3aUP003 703200 2308400 chem 3aUP003-3118 0.0-2.0 X X X3a soil ind UP 3aUP004 703200 2308800 chem 3aUP004-3119 0.0-2.0 X X X3a soil ind UP 3aUP005 703234.666 2309214.168 chem 3aUP005-3120 0.0-2.0 X X X3a soil ind UP 3aUP006 703000 2309000 chem 3aUP006-3121 0.0-2.0 X X X


TABLE 2-1




TAL(2)Other






3a soil ind UP 3aUP007 702800 2308800 chem 3aUP007-3122 0.0-2.0 X X X3a soil ind UP 3aUP008 702800 2309200 chem 3aUP008-3123 0.0-2.0 X X X3a soil ind UP 3aUP009 702800 2309600 chem 3aUP009-3124 0.0-2.0 X X X3a soil ind UP 3aUP010 702411.617 2309172.477 chem 3aUP010-3125 0.0-2.0 X X X3a soil ind UP 3aUP001 703655.906 2308801.463 chem 3aUP001-3126 2.0-10.0 X X X3a soil ind UP 3aUP002 703449.992 2308598.945 chem 3aUP002-3127 2.0-10.0 X X X3a soil ind UP 3aUP003 703200 2308400 chem 3aUP003-3128 2.0-10.0 X X X3a soil ind UP 3aUP004 703200 2308800 chem 3aUP004-3129 2.0-10.0 X X X3a soil ind UP 3aUP005 703234.666 2309214.168 chem 3aUP005-3130 2.0-10.0 X X X3a soil ind UP 3aUP006 703000 2309000 chem 3aUP006-3131 2.0-10.0 X X X3a soil ind UP 3aUP007 702800 2308800 chem 3aUP007-3132 2.0-10.0 X X X3a soil ind UP 3aUP008 702800 2309200 chem 3aUP008-3133 2.0-10.0 X X X X3a soil ind UP 3aUP009 702800 2309600 chem 3aUP009-3134 2.0-10.0 X X X3a soil ind UP 3aUP010 702411.617 2309172.477 chem 3aUP010-3135 2.0-10.0 X X X3b soil veg UP 3bUP001 705865.355 2308999.415 chem 3bUP001-3136 0.0-2.0 X X X X3b soil veg UP 3bUP002 705898.14 2309573.046 chem 3bUP002-3137 0.0-2.0 X X X3b soil veg UP 3bUP003 705921.6 2310000.266 chem 3bUP003-3138 0.0-2.0 X X X3b soil veg UP 3bUP004 705800 2308600 chem 3bUP004-3139 0.0-2.0 X X X3b soil veg UP 3bUP005 705400 2308200 chem 3bUP005-3140 0.0-2.0 X X X3b soil veg UP 3bUP006 705200 2307600 chem 3bUP006-3141 0.0-2.0 X X X3b soil veg UP 3bUP007 705001 2308000 chem 3bUP007-3142 0.0-2.0 X X X X3b soil veg UP 3bUP008 704751.737 2307174.19 chem 3bUP008-3143 0.0-2.0 X X X3b soil veg UP 3bUP009 704637.55 2308001.365 chem 3bUP009-3144 0.0-2.0 X X X3b soil veg UP 3bUP010 704400 2308400 chem 3bUP010-3145 0.0-2.0 X X X3b soil veg UP 3bUP011 704394.987 2308702.741 chem 3bUP011-3146 0.0-2.0 X X X3b soil veg UP 3bUP012 704195.857 2307570.378 chem 3bUP012-3147 0.0-2.0 X X X3b soil veg UP 3bUP013 704000 2308000 chem 3bUP013-3148 0.0-2.0 X X X3b soil veg UP 3bUP014 704001.016 2308466.644 chem 3bUP014-3149 0.0-2.0 X X X3b soil veg UP 3bUP015 704019.229 2308969.616 chem 3bUP015-3150 0.0-2.0 X X X3b soil veg UP 3bUP016 703817.509 2308658.343 chem 3bUP016-3151 0.0-2.0 X X X3b soil veg UP 3bUP017 703769.683 2311226.989 chem 3bUP017-3152 0.0-2.0 X X X3b soil veg UP 3bUP018 703600 2308200 chem 3bUP018-3153 0.0-2.0 X X X3b soil veg UP 3bUP019 703600 2309000 chem 3bUP019-3154 0.0-2.0 X X X3b soil veg UP 3bUP020 703588.061 2309370.383 chem 3bUP020-3155 0.0-2.0 X X X3b soil veg UP 3bUP021 703496.076 2309771.22 chem 3bUP021-3156 0.0-2.0 X X X3b soil veg UP 3bUP022 703400 2310800 chem 3bUP022-3157 0.0-2.0 X X X X3b soil veg UP 3bUP023 703200 2309400 chem 3bUP023-3158 0.0-2.0 X X X3b soil veg UP 3bUP024 703200 2309800 chem 3bUP024-3159 0.0-2.0 X X X3b soil veg UP 3bUP025 703218.027 2310391.699 chem 3bUP025-3160 0.0-2.0 X X X3b soil veg UP 3bUP026 703000 2310600 chem 3bUP026-3161 0.0-2.0 X X X3b soil veg UP 3bUP027 703000 2311000 chem 3bUP027-3162 0.0-2.0 X X X3b soil veg UP 3bUP028 702800 2309800 chem 3bUP028-3163 0.0-2.0 X X X3b soil veg UP 3bUP029 702600 2310200 chem 3bUP029-3164 0.0-2.0 X X X X3b soil veg UP 3bUP030 702600 2310600 chem 3bUP030-3165 0.0-2.0 X X X3b soil veg UP 3bUP001 705865.355 2308999.415 chem 3bUP001-3166 2.0-10.0 X X X3b soil veg UP 3bUP002 705898.14 2309573.046 chem 3bUP002-3167 2.0-10.0 X X X


TABLE 2-1




TAL(2)Other






3b soil veg UP 3bUP003 705921.6 2310000.266 chem 3bUP003-3168 2.0-10.0 X X X3b soil veg UP 3bUP004 705800 2308600 chem 3bUP004-3169 2.0-10.0 X X X3b soil veg UP 3bUP005 705400 2308200 chem 3bUP005-3170 2.0-10.0 X X X3b soil veg UP 3bUP006 705200 2307600 chem 3bUP006-3171 2.0-10.0 X X X3b soil veg UP 3bUP007 705001 2308000 chem 3bUP007-3172 2.0-10.0 X X X3b soil veg UP 3bUP008 704751.737 2307174.19 chem 3bUP008-3173 2.0-10.0 X X X3b soil veg UP 3bUP009 704637.55 2308001.365 chem 3bUP009-3174 2.0-10.0 X X X3b soil veg UP 3bUP010 704400 2308400 chem 3bUP010-3175 2.0-10.0 X X X X3b soil veg UP 3bUP011 704394.987 2308702.741 chem 3bUP011-3176 2.0-10.0 X X X3b soil veg UP 3bUP012 704195.857 2307570.378 chem 3bUP012-3177 2.0-10.0 X X X3b soil veg UP 3bUP013 704000 2308000 chem 3bUP013-3178 2.0-10.0 X X X3b soil veg UP 3bUP014 704001.016 2308466.644 chem 3bUP014-3179 2.0-10.0 X X X3b soil veg UP 3bUP015 704019.229 2308969.616 chem 3bUP015-3180 2.0-10.0 X X X3b soil veg UP 3bUP016 703817.509 2308658.343 chem 3bUP016-3181 2.0-10.0 X X X X3b soil veg UP 3bUP017 703769.683 2311226.989 chem 3bUP017-3182 2.0-10.0 X X X3b soil veg UP 3bUP018 703600 2308200 chem 3bUP018-3183 2.0-10.0 X X X3b soil veg UP 3bUP019 703600 2309000 chem 3bUP019-3184 2.0-10.0 X X X3b soil veg UP 3bUP020 703588.061 2309370.383 chem 3bUP020-3185 2.0-10.0 X X X X3b soil veg UP 3bUP021 703496.076 2309771.22 chem 3bUP021-3186 2.0-10.0 X X X3b soil veg UP 3bUP022 703400 2310800 chem 3bUP022-3187 2.0-10.0 X X X3b soil veg UP 3bUP023 703200 2309400 chem 3bUP023-3188 2.0-10.0 X X X3b soil veg UP 3bUP024 703200 2309800 chem 3bUP024-3189 2.0-10.0 X X X X3b soil veg UP 3bUP025 703218.027 2310391.699 chem 3bUP025-3190 2.0-10.0 X X X3b soil veg UP 3bUP026 703000 2310600 chem 3bUP026-3191 2.0-10.0 X X X3b soil veg UP 3bUP027 703000 2311000 chem 3bUP027-3192 2.0-10.0 X X X3b soil veg UP 3bUP028 702800 2309800 chem 3bUP028-3193 2.0-10.0 X X X3b soil veg UP 3bUP029 702600 2310200 chem 3bUP029-3194 2.0-10.0 X X X3b soil veg UP 3bUP030 702600 2310600 chem 3bUP030-3195 2.0-10.0 X X X4a soil veg UP 4aUP001 706615.24 2309384.764 chem 4aUP001-3196 0.0-2.0 X X4a soil veg UP 4aUP002 706600 2309800 chem 4aUP002-3197 0.0-2.0 X X4a soil veg UP 4aUP003 706600 2310200 chem 4aUP003-3198 0.0-2.0 X X X4a soil veg UP 4aUP004 706600 2310600 geotech 4aUP004-2132 0.0-2.0 X X4a soil veg UP 4aUP004 706600 2310600 chem 4aUP004-3199 0.0-2.0 X X4a soil veg UP 4aUP005 706400 2311000 chem 4aUP005-3200 0.0-2.0 X X4a soil veg UP 4aUP006 706400 2311400 chem 4aUP006-3201 0.0-2.0 X X X4a soil veg UP 4aUP007 706400 2311800 chem 4aUP007-3202 0.0-2.0 X X4a soil veg UP 4aUP008 706239.634 2308980.086 chem 4aUP008-3203 0.0-2.0 X X4a soil veg UP 4aUP009 706200 2309400 chem 4aUP009-3204 0.0-2.0 X X4a soil veg UP 4aUP010 706200 2309800 geotech 4aUP010-2133 0.0-2.0 X X4a soil veg UP 4aUP010 706200 2309800 geotech 4aUP010-2134 9.0-11.0 X X4a soil veg UP 4aUP010 706200 2309800 chem 4aUP010-3205 0.0-2.0 X X4c soil veg UP 4cUP001 706600 2307600 chem 4cUP001-3206 0.0-2.0 X X4c soil veg UP 4cUP002 706600 2308000 chem 4cUP002-3207 0.0-2.0 X X4c soil veg UP 4cUP003 706600 2308400 chem 4cUP003-3208 0.0-2.0 X X4c soil veg UP 4cUP004 706600 2308800 chem 4cUP004-3209 0.0-2.0 X X4c soil veg UP 4cUP005 706200 2307600 chem 4cUP005-3210 0.0-2.0 X X


TABLE 2-1




TAL(2)Other






4c soil veg UP 4cUP006 706200 2308000 chem 4cUP006-3211 0.0-2.0 X X4c soil veg UP 4cUP007 706200 2308400 chem 4cUP007-3212 0.0-2.0 X X X4c soil veg UP 4cUP008 706200 2308800 chem 4cUP008-3213 0.0-2.0 X X4c soil veg UP 4cUP009 705800 2308000 chem 4cUP009-3214 0.0-2.0 X X4c soil veg UP 4cUPO10 705800 2308400 chem 4cUPO10-3215 0.0-2.0 X X4e soil ind UP 4eUP001 706000 2307400 chem 4eUP001-3216 0.0-2.0 X X4e soil ind UP 4eUP002 705600 2307000 chem 4eUP002-3217 0.0-2.0 X X4e soil ind UP 4eUP003 705600 2307400 chem 4eUP003-3218 0.0-2.0 X X X4e soil ind UP 4eUP004 705600 2307800 chem 4eUP004-3219 0.0-2.0 X X4e soil ind UP 4eUP005 705200 2306600 chem 4eUP005-3220 0.0-2.0 X X4e soil ind UP 4eUP006 705200 2307000 chem 4eUP006-3221 0.0-2.0 X X X4e soil ind UP 4eUP007 705336 2307600 chem 4eUP007-3222 0.0-2.0 X X4e soil ind UP 4eUP008 704897 2307100 chem 4eUP008-3223 0.0-2.0 X X1a SW ow ow 1aOW001 705300 2308300 chem 1aOW001-3224 surface X X X1a SW ow ow 1aOW002 705300 2308550 chem 1aOW002-3225 surface X X1a SW ow ow 1aOW003 705300 2308800 chem 1aOW003-3226 surface X X1a SW ow ow 1aOW004 705400 2308600 chem 1aOW004-3227 surface X X1a SW ow ow 1aOW005 705450 2308800 chem 1aOW005-3228 surface X X1a SW ow ow 1aOW006 705200 2308900 chem 1aOW006-3229 surface X X1b SW ow ow 1bOW001 704450 2310500 chem 1bOW001-3230surface X X1b SW ow ow 1bOW002 704500 2310550 chem 1bOW002-3231surface X X X1b SW ow ow 1bOW003 704600 2310600 chem 1bOW003-3232surface X X1c SW ow ow 1cOW001 705100 2310650 chem 1cOW001-3233 surface X X1c SW ow ow 1cOW002 705150 2310800 chem 1cOW002-3234 surface X X1c SW ow ow 1cOW003 705200 2310950 chem 1cOW003-3235 surface X X1c SW ow ow 1cOW004 704950 2310750 chem 1cOW004-3236 surface X X1c SW ow ow 1cOW005 705001 2310850 chem 1cOW005-3237 surface X X X1c SW ow ow 1cOW006 705100 2311000 chem 1cOW006-3238 surface X X4a SW ow ow 4aOW001 706673 2309950 chem 4aOW001-3239 surface X X4a SW ow ow 4aOW002 706671 2310400 chem 4aOW002-3240 surface X X4a SW ow ow 4aOW003 706684 2310850 chem 4aOW003-3241 surface X X4a SW ow ow 4aOW004 706650 2311300 chem 4aOW004-3242 surface X X X4a SW ow ow 4aOW005 706550 2311750 chem 4aOW005-3243 surface X X4a SW ow ow 4aOW006 706350 2312050 chem 4aOW006-3244 surface X X4a SW ow ow 4aOW007 706300 2310850 chem 4aOW007-3245 surface X X4a SW ow ow 4aOW008 706250 2311151 chem 4aOW008-3246 surface X X4a SW ow ow 4aOW009 706250 2311450 chem 4aOW009-3247 surface X X4a SW ow ow 4aOW010 706250 2311700 chem 4aOW010-3248 surface X X1a SD ow ow 1aOW001 705300 2308300 chem 1aOW001-3249 0.0-0.5 X X X1a SD ow ow 1aOW002 705300 2308550 chem 1aOW002-3250 0.0-0.5 X X1a SD ow ow 1aOW003 705300 2308800 chem 1aOW003-3251 0.0-0.5 X X1a SD ow ow 1aOW004 705400 2308600 chem 1aOW004-3252 0.0-0.5 X X1a SD ow ow 1aOW005 705450 2308800 chem 1aOW005-3253 0.0-0.5 X X1a SD ow ow 1aOW006 705200 2308900 chem 1aOW006-3254 0.0-0.5 X X1b SD ow ow 1bOW001 704450 2310500 chem 1bOW001-32550.0-0.5 X X1b SD ow ow 1bOW002 704500 2310550 chem 1bOW002-32560.0-0.5 X X X


TABLE 2-1




TAL(2)Other






1b SD ow ow 1bOW003 704600 2310600 chem 1bOW003-32570.0-0.5 X X1c SD ow ow 1cOW001 705100 2310650 chem 1cOW001-3258 0.0-0.5 X X1c SD ow ow 1cOW002 705150 2310800 chem 1cOW002-3259 0.0-0.5 X X1c SD ow ow 1cOW003 705200 2310950 chem 1cOW003-3260 0.0-0.5 X X1c SD ow ow 1cOW004 704950 2310750 chem 1cOW004-3261 0.0-0.5 X X1c SD ow ow 1cOW005 705001 2310850 chem 1cOW005-3262 0.0-0.5 X X X1c SD ow ow 1cOW006 705100 2311000 chem 1cOW006-3263 0.0-0.5 X X4a SD ow ow 4aOW001 706673 2309950 chem 4aOW001-3264 0.0-0.5 X X4a SD ow ow 4aOW002 706671 2310400 chem 4aOW002-3265 0.0-0.5 X X4a SD ow ow 4aOW003 706684 2310850 chem 4aOW003-3266 0.0-0.5 X X4a SD ow ow 4aOW004 706650 2311300 chem 4aOW004-3267 0.0-0.5 X X X4a SD ow ow 4aOW005 706550 2311750 chem 4aOW005-3268 0.0-0.5 X X4a SD ow ow 4aOW006 706350 2312050 chem 4aOW006-3269 0.0-0.5 X X4a SD ow ow 4aOW007 706300 2310850 chem 4aOW007-3270 0.0-0.5 X X4a SD ow ow 4aOW008 706250 2311151 chem 4aOW008-3271 0.0-0.5 X X4a SD ow ow 4aOW009 706250 2311450 chem 4aOW009-3272 0.0-0.5 X X4a SD ow ow 4aOW010 706250 2311700 chem 4aOW010-3273 0.0-0.5 X X1b SW wl wl 1bWL001 704300 2309800 chem 1bWL001-3274 surface X X1b SW wl wl 1bWL002 704500 2310001 chem 1bWL002-3275 surface X X X1b SW wl wl 1bWL003 704700 2310200 chem 1bWL003-3276 surface X X1b SW wl wl 1bWL004 704100 2310001 chem 1bWL004-3277 surface X X1b SW wl wl 1bWL005 704400 2310200 chem 1bWL005-3278 surface X X1b SW wl wl 1bWL006 704700 2310400 chem 1bWL006-3279 surface X X1b SW wl wl 1bWL007 704000 2310100 chem 1bWL007-3280 surface X X1b SW wl wl 1bWL008 704199 2310300 chem 1bWL008-3281 surface X X1c SW wl wl 1cWL001 705300 2310700 chem 1cWL001-3282 surface X X1c SW wl wl 1cWL002 705400 2310900 chem 1cWL002-3283 surface X X1c SW wl wl 1cWL003 704900 2310700 chem 1cWL003-3284 surface X X1c SW wl wl 1cWL004 704900 2310900 chem 1cWL004-3285 surface X X X1c SW wl wl 1cWL005 705001 2311100 chem 1cWL005-3286 surface X X3b SW wl wl 3bWL001 705153 2307798 chem 3bWL001-3287 surface3b SW wl wl 3bWL002 705058 2307886 chem 3bWL002-3288 surface X X3b SW wl wl 3bWL003 704899 2307772 chem 3bWL003-3289 surface3b SW wl wl 3bWL004 704855 2307962 chem 3bWL004-3290 surface3b SW wl wl 3bWL005 704399 2307931 chem 3bWL005-3291 surface X X3b SW wl wl 3bWL006 704195 2308180 chem 3bWL006-3292 surface X X3b SW wl wl 3bWL007 704652 2308283 chem 3bWL007-3293 surface3b SW wl wl 3bWL008 704752 2308518 chem 3bWL008-3294 surface3b SW wl wl 3bWL009 704563 2308712 chem 3bWL009-3295 surface X X3b SW wl wl 3bWL010 704157 2309178 chem 3bWL010-3296 surface X X X3b SW wl wl 3bWL011 703814 2309505 chem 3bWL011-3297 surface3b SW wl wl 3bWL012 703861 2309208 chem 3bWL012-3298 surface X X3b SW wl wl 3bWL013 703768 2309046 chem 3bWL013-3299 surface3b SW wl wl 3bWL014 703091 2310070 chem 3bWL014-3300 surface X X3b SW wl wl 3bWL015 703072 2310494 chem 3bWL015-3301 surface3b SW wl wl 3bWL016 705765 2308468 chem 3bWL016-3302 surface X X


TABLE 2-1




TAL(2)Other






4a SW wl wl 4aWL001 706300 2310001 chem 4aWL001-3303 surface X X4a SW wl wl 4aWL002 706300 2310200 chem 4aWL002-3304 surface X X4a SW wl wl 4aWL003 706300 2310500 chem 4aWL003-3305 surface X X X4a SW wl wl 4aWL004 706300 2310700 chem 4aWL004-3306 surface X X4b SW wl wl 4bWL001 706000 2311499 chem 4bWL001-3307 surface X X4b SW wl wl 4bWL002 705700 2311700 chem 4bWL002-3308 surface X X X4b SW wl wl 4bWL003 706000 2311800 chem 4bWL003-3309 surface X X4b SW wl wl 4bWL004 705500 2311800 chem 4bWL004-3310 surface X X4b SW wl wl 4bWL005 705700 2311900 chem 4bWL005-3311 surface X X4b SW wl wl 4bWL006 706100 2312100 chem 4bWL006-3312 surface X X4d SW wl wl 4dWL001 706000 2311000 chem 4dWL001-3313 surface X X4d SW wl wl 4dWL002 705800 2311400 chem 4dWL002-3314 surface X X4d SW wl wl 4dWL003 705500 2311600 chem 4dWL003-3315 surface X X4d SW wl wl 4dWL004 705100 2311700 chem 4dWL004-3316 surface X X X1b SD wl wl 1bWL001 704300 2309800 chem 1bWL001-3317 0.0-0.5 X X1b SD wl wl 1bWL002 704500 2310001 chem 1bWL002-3318 0.0-0.5 X X X1b SD wl wl 1bWL003 704700 2310200 chem 1bWL003-3319 0.0-0.5 X X1b SD wl wl 1bWL004 704100 2310001 chem 1bWL004-3320 0.0-0.5 X X1b SD wl wl 1bWL005 704400 2310200 chem 1bWL005-3321 0.0-0.5 X X1b SD wl wl 1bWL006 704700 2310400 chem 1bWL006-3322 0.0-0.5 X X1b SD wl wl 1bWL007 704000 2310100 chem 1bWL007-3323 0.0-0.5 X X1b SD wl wl 1bWL008 704199 2310300 chem 1bWL008-3324 0.0-0.5 X X1c SD wl wl 1cWL001 705300 2310700 chem 1cWL001-3325 0.0-0.5 X X1c SD wl wl 1cWL002 705400 2310900 chem 1cWL002-3326 0.0-0.5 X X1c SD wl wl 1cWL003 704900 2310700 chem 1cWL003-3327 0.0-0.5 X X1c SD wl wl 1cWL004 704900 2310900 chem 1cWL004-3328 0.0-0.5 X X X1c SD wl wl 1cWL005 705001 2311100 chem 1cWL005-3329 0.0-0.5 X X3b SD wl wl 3bWL001 705153 2307798 chem 3bWL001-3330 0.0-0.53b SD wl wl 3bWL002 705058 2307886 chem 3bWL002-3331 0.0-0.5 X X3b SD wl wl 3bWL003 704899 2307772 chem 3bWL003-3332 0.0-0.53b SD wl wl 3bWL004 704855 2307962 chem 3bWL004-3333 0.0-0.53b SD wl wl 3bWL005 704399 2307931 chem 3bWL005-3334 0.0-0.5 X X3b SD wl wl 3bWL006 704195 2308180 chem 3bWL006-3335 0.0-0.5 X X3b SD wl wl 3bWL007 704652 2308283 chem 3bWL007-3336 0.0-0.53b SD wl wl 3bWL008 704752 2308518 chem 3bWL008-3337 0.0-0.53b SD wl wl 3bWL009 704563 2308712 chem 3bWL009-3338 0.0-0.5 X X3b SD wl wl 3bWL010 704157 2309178 chem 3bWL010-3339 0.0-0.5 X X X3b SD wl wl 3bWL011 703814 2309505 chem 3bWL011-3340 0.0-0.53b SD wl wl 3bWL012 703861 2309208 chem 3bWL012-3341 0.0-0.5 X X3b SD wl wl 3bWL013 703768 2309046 chem 3bWL013-3342 0.0-0.53b SD wl wl 3bWL014 703091 2310070 chem 3bWL014-3343 0.0-0.5 X X3b SD wl wl 3bWL015 703072 2310494 chem 3bWL015-3344 0.0-0.53b SD wl wl 3bWL016 705765 2308468 chem 3bWL016-3345 0.0-0.5 X X4a SD wl wl 4aWL001 706300 2310001 chem 4aWL001-3346 0.0-0.5 X X4a SD wl wl 4aWL002 706300 2310200 chem 4aWL002-3347 0.0-0.5 X X4a SD wl wl 4aWL003 706300 2310500 chem 4aWL003-3348 0.0-0.5 X X X


TABLE 2-1




TAL(2)Other






4a SD wl wl 4aWL004 706300 2310700 chem 4aWL004-3349 0.0-0.5 X X4a SD wl wl 4bWL001 706000 2311499 chem 4bWL001-3350 0.0-0.5 X X4b SD wl wl 4bWL002 705700 2311700 chem 4bWL002-3351 0.0-0.5 X X X4b SD wl wl 4bWL003 706000 2311800 chem 4bWL003-3352 0.0-0.5 X X4b SD wl wl 4bWL004 705500 2311800 chem 4bWL004-3353 0.0-0.5 X X4b SD wl wl 4bWL005 705700 2311900 chem 4bWL005-3354 0.0-0.5 X X4b SD wl wl 4bWL006 706100 2312100 chem 4bWL006-3355 0.0-0.5 X X4d SD wl wl 4dWL001 706000 2311000 chem 4dWL001-3356 0.0-0.5 X X4d SD wl wl 4dWL002 705800 2311400 chem 4dWL002-3357 0.0-0.5 X X4d SD wl wl 4dWL003 705500 2311600 chem 4dWL003-3358 0.0-0.5 X X4d SD wl wl 4dWL004 705100 2311700 chem 4dWL004-3359 0.0-0.5 X X X3b GW UP veg 3bMW001 TBD chem TBD4c GW UP veg 4cMW001 TBD chem TBD4e GW UP ind 4eMW001 TBD chem TBD4e GW UP ind 4eMW002 TBD chem TBD

Notes:TBD = to be determinedMatrix: soil = soil or residue veg = vegetative cover wl = wetland

SW = surface water nonveg = bare ground ow = open waterSD = sediment ind = industrial up = uplandGW = groundwater

(1) Codes for sample types include: 1000-1999 for ag samples; 2000-2999 for Geotechnical samples; 3000-3999 for chemistry samples; 4000-4999 for SPL samples; and 9000-9999 for miscellaneous samples.(2) Modified TAL List includes: Al, Sb, As, Ba, Cd, Cr, Co, Cu, Mn, Pb, Hg, Se, Ag, Tl, V, and Zn(3) Other Inorganics includes: F- and CN- in soils and residues; in surface waters these include: SO4, Ca, Mg, TDS, and F-

(4) The TCL list includes VOCs, SVOCs, and PCBs(5) PAHs include those listed as part of SW-846 Method 8310.(6) The agronomic residue suite includes: N, S, Ca, Mg, Na, K, B, Zn, Mn, Cu, Fe, P, NO3, SO4, CEC, ESP, pH, bulk density, moisture content (7) The agronoomic gypsum suite includes: N, S, Ca, Mg, Na, K, B, Zn, Mn, Cu, Fe, P, pH (8) Geotechnical Analyses include:UW-MC Unit weight (ASTM D2937) & moisture content (ASTM D2216)UC Unconfined compressive strength (ASTM D2166)SC Soil classification (ASTM 2487) (including Atterberg Limits (ASTM D2487) and minus 200 mesh sieve (ASTM D422))SA Sieve analysis (ASTM D422/D1140)TC Triaxial compression test (ASTM D4767)CT Consolidation test (ASTM D2435)PT Permeability test (ASTM D5084 or D2434)MD Moisture/density relationship (ASTM D 698)

All numbered Wetlands in IB 3b are included, yet only those randomly selected for assessment include chemical analyses.

Habitat or land use :


J:\East St. Louis RFS\RI\Tables\Table 3-1 Aq Testing.doc

TABLE 3-1

RESULTS OF AQUIFER TESTING

NORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Monitoring Well Test Type Hydraulic conductivity

(ft/min) Hydraulic Conductivity

(gpd/ft2) Hydraulic Conductivity

(cm/sec)

MW-2 Rising Head 0.0373 401 1.89E-02

MW-3 Falling Head 0.0375 403 1.90E-02

MW-3 Rising Head 0.0345 371 1.75E-02

MW-4 Falling Head 0.0125 135 6.38E-03

MW-4 Rising Head 0.0410 442 2.08E-02

Average Hydraulic Conductivity: 350 1.65E-02

TABLE 3-2FIELD VERIFICATION RECORDS

WATER WELL SURVEYNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

DECEMBER 2003

Well Number Northing Easting Township Range Section Plot Owner Address Driller Date DrilledWell

DepthWell

StatusWell Use

Pump (gpm) Data Source Contact / Phone

#1st Quarter 2003

Well Survey ResultsDecember 2003

Well Survey Results

121630173900 ISGS Wells

Talked to Superintendent. He stated that he had no knowledge of any wells on the site. Could not locate well. No further action taken.

383552090073501 2N 9W 29 8F UNK USGS_NWIS 500 line railroad track. Could not locate well.

704211 2311395 3201 Missouri Ave. (Site). 54.5 Active

On-site. The well is a 2" PVC monitoring well 54.5' deep and 3.2' stickup and cap in good condition.

134961 2N 9W 30 1H Al Ore Co. 30-Jun-25 115 IC ISWS_Private Road closed down. Could not locate well.134963 2N 9W 30 1H Al Ore Co. 01-Jan-43 121 IC ISWS_Private Road closed down. Could not locate well.134964 2N 9W 30 1H Al Ore Co. 01-Jan-43 118 IC ISWS_Private Road closed down. Could not locate well.134965 2N 9W 30 1H Al Ore Co. 01-Jan-43 112 IC ISWS_Private Road closed down. Could not locate well.244655 2N 9W 30 7G Alton & Southern Railway 01-Aug-44 IC ISWS_Private Vacant lot. Could not locate well.134968 2N 9W 20 8A Alton & Southern Railway 01-Jan-44 100 IC ISWS_Private Vacant lot. Could not locate well.244653 2N 9W 29 7E Aluminum Ore Co. H. L. Watson 01-Oct-40 122 IC 938 ISWS_Private Vacant lot. Could not locate well.121630190000 2N 9W 29 NW SE NW Aluminum Ore Co. Harold L. Watson 01-Oct-40 ISGS Update Vacant lot. Could not locate well.121630191800 2N 9W 17 NW SW SW Brichler & Co. Harold L. Watson 01-Dec-45 ISGS Update Residential area. Could not locate well.241157 2N 9W 29 8E Casper Sickmann 01-Oct-43 30 DO ISWS_Private Vacant lot. Could not locate well. No further action taken.135016 2N 9W 19 8F Certainteed Products Corp. 106 IC ISWS_Private Vacant lot. Could not locate well.

135017 2N 10W 24 1E Certainteed Products Corp. 01-Jan-43 106 IC ISWS_Private


135018 2N 9W 19 8F Certainteed Products Corp. 110 IC ISWS_Private Vacant lot. Could not locate well.121630189800 2N 9W 19 NW SW NW Certainteed Products Corp. Harold L. Watson 01-Dec-42 ISGS Update Vacant lot. Could not locate well.

244665 2N 10W 24 1E Certainteed Products Corp. Watson (Fink) 01-Oct-50 118 IC ISWS_Private


135021 2N 9W 29 8F Chem Teck Products 01-Jan-72 98 IC ISWS_Private Vacant lot. Could not locate well.134953 2N 9W 17 8B Drug Store 01-Jan-49 84 IC ISWS_Private Vacant lot. Could not locate well.135066 2N 9W 19 3H Home Ice Cream Co 01-Jan-33 115 IC ISWS_Private Junk yard. Could not locate well.

246118 2N 9W 19 Illinois Power Company #101 29th St. (near Missouri Ave.) Bignal 02-Apr-92 26 Plugged MO ISWS_PrivateObserved three monitoring wells on site. Wells placed around gas pumps. Wells were abandoned in 2003.



246117 2N 9W 19Illinois Power Company RW-101 29th St. (near Missouri Ave.) Bignal 03-Apr-92 33 Plugged MO ISWS_Private

Observed three monitoring wells on site. Wells placed around gas pumps. Wells were abandoned in 2003.

121632622700 2N 9W 29 NE NW Industrial Track Supply Inc. (Koppers) 3901 Missouri Ave Clarence Kohnen 19-Jan-81 75 UNK ISGS Update

Kopper Industries - Barry Hample stated that the well was backfilled in 1998. Confimed no well on site.

Well abandoned in 4/22/1999.

253460 2N 9W 19 3H Jul Fischer Distributor Co. #1 Burlington Envir. Inc 11-Sep-92 24 MO ISWS_Private Junk yard. Could not locate well.





135085 2N 9W 30 6H Key Co. 01-Jan-43 100 IC ISWS_PrivateNew home construction on and around the site. Could not locate well.

135086 2N 9W 30 5H Key Co. Watson 01-Jan-43 118 IC ISWS_Private Vacant lot. Could not locate well.121630190100 2N 9W 30 NE NW Key Co. Harold L. Watson 01-Jul-43 UNK ISGS Update Vacant lot. Could not locate well.135095 2N 9W 19 8G Lemp Brewing Co 01-Jan-46 720 IC ISWS_Private Vacant lot. Could not locate well.135199 2N 9W 19 8F Obear Nester Co 01-Jan-43 104 IC ISWS_Private Vacant lot. Could not locate well.

135200 2N 9W 19 8E Obear Nester Co 01-Jan-43 104 IC ISWS_PrivateNew construction of Orwells Apartments. Could not locate well.

135226 2N 9W 19 Prestressed Slabs 2400 McCasland Ave St Ch Drill 29-Oct-86 100 IC ISWS_Private Vacant lot. Could not locate well.

A vacant lot was found at the coordinates from the ISGS report. These coordinates may be inaccurate as an inactive cement slab fabrication facility appears to be across the street. No phone number or company listing could be found. The facility appeared abandoned and no well was located.

121632590300 2N 9W 19 SW SW SE Prestressed Slabs, Inc. 2400 McCasland Ave Alfred Hampton Miller 29-Oct-86 ISGS Update Industrial lot. Could not gain access to property.16338890 2N 9W 29 8F Solvay Fluorides, Inc 3500 Missouri Ave. 20 UNK ISWS_PICs Vacant lot. Could not locate well.


TABLE 3-2FIELD VERIFICATION RECORDS

WATER WELL SURVEYNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

DECEMBER 2003

Well Number Northing Easting Township Range Section Plot Owner Address Driller Date DrilledWell

DepthWell

StatusWell Use

Pump (gpm) Data Source Contact / Phone

#1st Quarter 2003

Well Survey ResultsDecember 2003

Well Survey Results

121632379800 2N 9W 17 SW State of Illinois Luhr Brothers, Inc. 26-Mar-74 DW ISGS Update

David Walker 619-346-3274 or 618-304-2082 Vacant lot. Could not locate well.

Spoke with IDOT and was shown the well locations at the intersection of I-64 and Missouri Avenue. There are three wells at this location, they are part of a dewatering network of 52 wells that pump approx. 15.9 mill gpd. Wells are sampled quarterly for Fe. Water discharges into Cahokia Canal.

121632396000 714535 2298113 2N 9W 17 State of Illinois I-64 Intersection of I-64 and Missouri Ave Luhr Brothers, Inc. 11-Jul-75 DW 1500 ISGS Update Same as above

IDOT. Could not locate wells. Interstate Highway 64 off ramp in this location. Same as above

121632396100 2N 9W 17 State of Illinois I-64 Luhr Brothers, Inc. 16-Jul-75 DW ISGS Update Same as aboveIDOT. Could not locate wells. Interstate Highway 64 off ramp in this location. Same as above

121632396900 2N 9W 17 State of Illinois I-64 Luhr Brothers, Inc. 10-Jul-75 DW ISGS Update Same as aboveIDOT. Could not locate wells. Interstate Highway 64 off ramp in this location. Same as above

121632970700 2N 9W 20 NE NW NW State Street Shell Midwest Drilling, Inc. 15-Sep-99 25 ISGS UpdateNew East St. Louis school building being built on the block. Could not locate well.

325934 2N 9W 20 7H State Street Shell #MW5-16 Midwest Drilling, Inc. 25 MO ISWS_PrivateNew Walgreen's being built on this site. Could not locate well.

Located and verified the Walgreen's Store, but no well was visible.

241156 2N 9W 29 8D Theo. Taycoski3703 Walnut Street, East St. Louis, IL 01-Sep-37 91 DO ISWS_Private

Met with property owner who showed the location of the well. Well was not in use. No further action taken.

349430 696753 2315725 2N 9W 33 1F Beelman Ready Mix, Inc0.5 miles south of the I-255 and Missouri Ave intersection Kohnen Concrete Products 5/15/2003 IC ISWS_Private

526-0260 or Sam Beelman 618-972-5370

Water from well is used to mix with concrete and aggregate. Pump is in a locked pumphouse.

241443 713881 2310721 City of East St. Louis, IL 2950 Casyville Ave 10/00/1972 Park ISWS_PrivateLynard Johnson 618-874-3600

Water is used to fill the pond at Jones Park. They said that there were two wells but, we only saw one. Fishing is allowed. Swimming is posted as prohibited. Pump is in a pumphouse surrounded by a locked gate.

AKZO Nobel 2904 Missouri Ave Door-to-DoorCharles Harbough 618-271-6601

No water wells, but they have one monitoring well that will be abandoned next year.

Upchurch Ready Mix Concrete Corner of 29th & Missouri Ave. ~1980 110 Active IC 250 Door-to-DoorJim Upchurch 618-332-2954

Active water well in investigation area. Water used to prepare concrete.

Metro East Industries Adjacent to site on Missouri Ave Door-to-DoorWalter Andrews 618-271-7210

No water wells, but they had some monitoring wells that have been abandoned.

Lowry Electric Co. Adjacent to site on Missouri Ave Door-to-Door 618-274-1600 No water wells.

195199 2N 10W 25 Lefton Iron Metal Co. Former Moss-American Site Roberts 75Plugged-

1989 IC ISWS

Could not locate owners, property, or well. Plugged in 1989. Well diameter listed as 8" (0-15'), 6" (15-75').

16338890 2N 9W 29 8F Solvay Fluorides Inc 3500 Missouri Ave ISWSChristine Warta 618-274-0755

They had a well in the past but, it was sealed in the 1970s.

16338935 2N 10W 25 Trade Waste IncinerationDennis Warsal 618-271-2804

Ownership changed to Onex Environmental. They had some wells that were used for process water. The process was shutdown in 1992 and the wells were abandoned.

135179 2N 10W 25 Monsanto Barbato 4/5/1984 68 IC ISWSMark Peel 618-482-6556

Ownership changed from Monsanto to Solutia. They had some wells in the past in the main facility in Soget, but they have all been abandoned.

331777 713327 2308510 2N 9W 17 6FJackie-Joiner Kursee Boys & Girls Club 101 JJK Circle Kohnen Concrete Products 6/15/2001 90 Active IR ISWS

Robert Blachard 618-274-5437

Active water well. Water used for irrigation of sports fields.

349431 698382 2300624 2N 10W 36 4G Stellar Manufacturing Inc. 1647 Sauget Business Blvd Kohnen Concrete Products 8/7/2003 92 Active IC 250 ISWSAndre Marino 618-337-1700

Well installed to provide water for fire protection system.

Notes on Well Use: DO DomesticDW Drinking WaterIC Industrial/CommercialIR Irrigation

Park Park FountainMO Monitoring

UNK Unknown


TABLE 4-1

SUMMARY OF DETECTED CONSTITUENTS IN SURFACE SOILSNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:

Depth (feet bgs):Sample Date:

Metals UnitsAluminum mg/kg 64100 73200 J 91100 49200 75800 JAntimony mg/kg 0.94 UJ 1.9 L 1.05 J 4.31 L 1.44 LArsenic mg/kg 39.2 20.3 L 9.89 45.5 L 21 LBarium mg/kg 115 109 J 149 H 72.4 108 JCadmium mg/kg 0.0769 UJ 1.04 0.106 J 0.27 J 1.59Chromium mg/kg 49.1 J 90.7 J 113 H 41.6 J 77.8 JCobalt mg/kg 1.47 1.33 2.56 0.978 1.22Copper mg/kg 4.58 8.34 13.3 16.8 11.4Lead mg/kg 70 61.4 J 68.6 49.8 65.5 JManganese mg/kg 539 J 432 J 497 1480 441 JMercury mg/kg 0.358 0.504 0.0987 J 0.385 0.693Nickel mg/kg 3.66 4.61 7.2 3.66 5.66Selenium mg/kg 0.669 U 0.644 U 0.723 U 3.21 0.618 USilver mg/kg 3.23 0.206 U 0.231 U 0.175 U 0.197 UThallium mg/kg 1.32 U 1.28 U 2.34 J 3.83 J 1.22 UVanadium mg/kg 244 177 J 125 206 153 JZinc mg/kg 32.3 42.3 J 32.5 34.1 83.1 J

VOCsAcetone ug/kg NA NA 11 U NA NABenzene ug/kg NA NA 2 J NA NACarbon Disulfide ug/kg NA NA 2 U NA NAChloroform ug/kg NA NA 2 U NA NAEthylbenzene ug/kg NA NA 2 J NA NAIsopropylbenzene ug/kg NA NA 2 U NA NAMethyl Tertiary Butyl Ether ug/kg NA NA 24 NA NAMethylene Chloride ug/kg NA NA 3 U NA NAToluene ug/kg NA NA 9 NA NAXylene (Total) ug/kg NA NA 9 NA NA

SVOCs1,1'-Biphenyl ug/kg NA NA 52 U NA NA2,4,5-Trichlorophenol ug/kg NA NA 52 U NA NA2-Methylnaphthalene ug/kg NA NA NA NA NA4-Nitrophenol ug/kg NA NA 260 U NA NAAcenaphthene ug/kg NA NA NA NA NAAcenaphthylene ug/kg NA NA NA NA NAAnthracene ug/kg NA NA NA NA NABenzaldehyde ug/kg NA NA 52 U NA NABenzo(a)anthracene ug/kg NA NA NA NA NABenzo(a)pyrene ug/kg NA NA NA NA NABenzo(b)fluoranthene ug/kg NA NA NA NA NABenzo(g,h,i)perylene ug/kg NA NA NA NA NABenzo(k)fluoranthene ug/kg NA NA NA NA NAbis(2-Ethylhexyl)phthalate ug/kg NA NA 360 J NA NACarbazole ug/kg NA NA 52 U NA NAChrysene ug/kg NA NA NA NA NADibenz(a,h)anthracene ug/kg NA NA NA NA NADibenzofuran ug/kg NA NA 52 U NA NADi-n-butylphthalate ug/kg NA NA 100 U NA NAFluoranthene ug/kg NA NA NA NA NAFluorene ug/kg NA NA NA NA NAIndeno(1,2,3-cd)pyrene ug/kg NA NA NA NA NANaphthalene ug/kg NA NA NA NA NAN-Nitrosodiphenylamine ug/kg NA NA 52 U NA NAPhenanthrene ug/kg NA NA NA NA NAPhenol ug/kg NA NA 52 U NA NAPyrene ug/kg NA NA NA NA NA

PCBsPCB-1248 ug/kg NA NA 6.1 U NA NAPCB-1254 ug/kg NA NA 9.3 U NA NAPCB-1260 ug/kg NA NA 8.5 U NA NA

Wet ChemistryFluoride mg/kg 20.5 L 22.9 L 37.4 L 15.3 J 24.5 LMoisture percent 31.8 28.5 36.3 16 27.6pH pH units 8.6 8.9 8.9 8.3 8.8Total Cyanide mg/kg 0.25 U 0.5 U 6.8 1 0.5 UNotes:mg/kg - milligrams per kilogram or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.L - value is biased low.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzed.R - result rejected in validation.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.PCBs - Polychlorinated Biphenylsbgs - below ground surface.

9/5/2003 9/6/2003 9/6/2003 9/7/2003 9/6/20030 - 2 0 - 2 0 - 2 0 - 2 0 - 21a 1a 1a 1a 1a

1aUP001-090503SO01 1aUP002-090603SO01 1aUP003-090603SO01 1aUP004-090703SO01 1aUP005-090603SO01

J:\East St. Louis RFS\RI\Tables\Table 4-1 Draft.xls 1 of 28

TABLE 4-1


Sample No:IB:


Metals UnitsAluminum mg/kgAntimony mg/kgArsenic mg/kgBarium mg/kgCadmium mg/kgChromium mg/kgCobalt mg/kgCopper mg/kgLead mg/kgManganese mg/kgMercury mg/kgNickel mg/kgSelenium mg/kgSilver mg/kgThallium mg/kgVanadium mg/kgZinc mg/kg

VOCsAcetone ug/kgBenzene ug/kgCarbon Disulfide ug/kgChloroform ug/kgEthylbenzene ug/kgIsopropylbenzene ug/kgMethyl Tertiary Butyl Ether ug/kgMethylene Chloride ug/kgToluene ug/kgXylene (Total) ug/kg

SVOCs1,1'-Biphenyl ug/kg2,4,5-Trichlorophenol ug/kg2-Methylnaphthalene ug/kg4-Nitrophenol ug/kgAcenaphthene ug/kgAcenaphthylene ug/kgAnthracene ug/kgBenzaldehyde ug/kgBenzo(a)anthracene ug/kgBenzo(a)pyrene ug/kgBenzo(b)fluoranthene ug/kgBenzo(g,h,i)perylene ug/kgBenzo(k)fluoranthene ug/kgbis(2-Ethylhexyl)phthalate ug/kgCarbazole ug/kgChrysene ug/kgDibenz(a,h)anthracene ug/kgDibenzofuran ug/kgDi-n-butylphthalate ug/kgFluoranthene ug/kgFluorene ug/kgIndeno(1,2,3-cd)pyrene ug/kgNaphthalene ug/kgN-Nitrosodiphenylamine ug/kgPhenanthrene ug/kgPhenol ug/kgPyrene ug/kg

PCBsPCB-1248 ug/kgPCB-1254 ug/kgPCB-1260 ug/kg

Wet ChemistryFluoride mg/kgMoisture percentpH pH unitsTotal Cyanide mg/kgNotes:mg/kg - milligrams per kilogram or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.L - value is biased low.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzed.R - result rejected in validation.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.PCBs - Polychlorinated Biphenylsbgs - below ground surface.

77800 85000 78400 J 83600 690001.4 L 1.01 UJ 0.935 L 0.975 UJ 0.894 UJ

26.7 35.8 15.4 L 32.5 31.2140 185 121 J 147 120

0.0855 UJ 0.083 UJ 0.924 0.0797 UJ 0.0731 UJ379 254 110 J 370 92.21.77 2.15 1.3 2.05 2.157.94 7.34 9.08 7.22 13.389.1 113 67.6 J 98.9 80.1405 384 299 J 347 746

0.406 H 0.303 H 0.233 0.423 H 0.52 H6.54 6.12 5.76 6.12 5.69

1.5 J 0.723 U 0.666 U 0.821 J 2.222.48 2.19 0.212 U 2.82 2.23.96 3.37 1.32 U 4.38 4.77426 357 159 J 434 27822.9 21.3 31 J 18.6 81.1

NA 11 U NA NA NANA 2 U NA NA NANA 2 U NA NA NANA 2 U NA NA NANA 2 U NA NA NANA 2 U NA NA NANA 2 U NA NA NANA 3 U NA NA NANA 2 U NA NA NANA 2 U NA NA NA

NA 52 U NA NA NANA 52 U NA NA NANA NA NA NA NANA 260 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 52 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 100 J NA NA NANA 52 U NA NA NANA NA NA NA NANA NA NA NA NANA 52 U NA NA NANA 100 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 52 U NA NA NANA NA NA NA NANA 52 U NA NA NANA NA NA NA NA

NA 6.1 U NA NA NANA 9.2 U NA NA NANA 8.4 U NA NA NA

57.3 J 90.9 J 76.8 L 94.9 J 14.1 J38.7 35.6 30.1 35.5 27.6

11 11.7 10.4 12 8.80.29 U 0.27 U 0.52 U 1.1 0.24 U

9/5/2003 9/5/20039/5/2003 9/5/2003 9/6/20030 - 2 0 - 20 - 2 0 - 2 0 - 21a 1a1a 1a 1a

1aUP009-090503SO01 1aUP010-090503SO011aUP006-090503SO01 1aUP007-090503SO01 1aUP008-090603SO01


TABLE 4-1


Sample No:IB:







74300 62800 67100 87300 89800 J0.909 UJ 0.93 U 1.39 L 0.966 UJ 1.34 L

15.3 10.1 14.9 L 9.91 12.4 L128 111 J 100 118 132 J2.13 J 1.35 0.893 0.0791 UJ 1.48151 86.9 J 80.8 J 101 J 99.2 J2.09 1.94 1.18 1.57 1.3623.3 15.9 9.48 10.7 19.983.3 73 56.8 59.7 81.1 J388 373 425 348 J 306 J

0.194 0.131 J 0.154 0.11 J 0.26218.4 12 4.79 5.14 6.96

0.647 U 0.662 U 0.658 U 0.719 J 0.736 U2.22 2.44 0.21 U 2.28 0.235 U1.48 J 3.02 3.71 J 1.36 U 1.46 U188 104 J 146 127 112 J125 102 37.2 32.7 61.3 J

NA NA 10 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 3 U NA NANA NA 1 U NA NANA NA 1 U NA NA

NA NA 48 U NA NANA NA 48 U NA NANA NA NA NA NANA NA 240 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 48 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 96 U NA NANA NA 48 U NA NANA NA NA NA NANA NA NA NA NANA NA 48 U NA NANA NA 96 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 48 U NA NANA NA NA NA NANA NA 48 U NA NANA NA NA NA NA

NA NA 5.6 U NA NANA NA 8.5 U NA NANA NA 7.8 U NA NA

37.2 L 17.1 L 85.9 J 38.2 L 47.6 J27.4 J 29.7 30.6 31.7 36.8

8.5 8.4 11.6 11.6 8.711.9 4.8 1.3 6.2 10.4

9/9/2003 9/5/2003 9/8/20039/9/2003 9/7/20030 - 2 0 - 2 0 - 20 - 2 0 - 21a 1a 1a1a 1a

1aUP013-090703SO01 1aUP014-090503SO01 1aUP015-090803SO011aUP011-090903SO01 1aUP012-090703SO01


TABLE 4-1


Sample No:IB:







7550 J 63500 J 46900 34800 684000.793 UJ 3.32 L 2.51 L 1.66 L 1.99 L

5.04 L 40.2 L 21.4 L 19.3 L 12.5 L69.8 J 86.5 J 86.9 69.2 107

0.894 0.567 J 1 0.808 0.528 J14.3 J 83.9 J 68.5 J 36.7 J 270 J

0.626 0.278 J 0.922 1.3 0.8735.4 2.57 10.2 9.7 6.88

1290 J 54.7 J 41.7 31.6 59.773.4 J 531 J 507 517 400

0.0553 J 0.265 0.125 J 0.184 0.5343.22 2.77 5.81 5.03 4.82

0.863 J 4.11 0.602 U 0.601 U 0.72 U0.334 J 0.188 U 0.192 U 0.192 U 0.23 U

1.12 U 5.82 U 2.19 J 1.69 J 3.92 J28.3 J 405 J 212 163 21842.3 J 16.4 J 47.1 50.2 16.3

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NA

27.5 J 44.7 J 36.4 J 28.1 J 54.1 J19.2 23.2 24.2 22.6 36

7.6 10.5 8.3 8.1 11.60.45 U 0.47 U 2.7 0.62 J 0.31 J

9/8/2003 9/7/2003 9/7/2003 9/7/20039/8/20030 - 2 0 - 2 0 - 2 0 - 20 - 21a 1a 1a 1a1a

1aUP017-090803SO01 1aUP018-090703SO01 1aUP019-090703SO01 1aUP020-090703SO011aUP016-090803SO01


TABLE 4-1


Sample No:IB:







34700 31700 81500 99200 1270009.46 L 8.13 L 4.58 U 2.56 L 1.63 L24.6 24.9 58.8 76.2 27.328.3 24.4 249 504 79423.7 19.2 0.374 U 0.265 J 0.0765 U375 H 362 H 461 512 H 520 H2.36 2.53 4.12 12.8 4.4913.3 H 12.8 H 34.2 41.7 H 33.4 H

60 54.9 367 678 608464 212 317 260 254

0.363 L 0.372 L 0.291 0.426 L 0.844 L3.5 5.21 18.8 23.2 16.7

0.529 U 0.547 U 3.26 U 0.708 U 0.666 U1.36 1.22 1.11 J 3.21 2.261.05 U 1.08 U 6.45 U 1.4 U 1.32 U1090 H 974 H 969 H 967 H 651 H23.2 J 23.2 J 201 227 J 92.9 J




6 J 6.7 J 114 J 118 J 67.5 J13.7 15 29.3 34.9 31.58.3 9.2 8.7 8.4 8.5

0.21 U 0.21 U 0.75 1.2 0.4 J

9/11/20039/11/2003 9/11/2003 9/10/2003 9/11/20030 - 20 - 2 0 - 2 0 - 2 0 - 21b1b 1b 1b 1b

1bUP005-091103SO011bUP001-091103SO01 1bUP002-091103SO01 1bUP003-091003SO01 1bUP004-091103SO01


TABLE 4-1


Sample No:IB:







75300 72000 49900 59000 590001.97 L 4.64 U 4.82 J 0.991 J 4.1 L27.3 22.1 34.6 17.4 20.2111 84 26 78.5 62.1

0.079 U 0.379 U 0.342 U 1.82 3.44499 H 847 413 960 930 H2.42 3.2 J 1.34 J 1.85 2.2715.9 H 17.2 9.49 18.2 18.7 H137 115 44.5 91.9 83.7386 247 475 301 235

0.364 L 0.287 0.148 0.222 0.217 L7.95 10 4.57 J 7.58 7.89

0.687 U 3.3 U 4.87 J 3.37 U 0.7 U2.06 1.05 U 0.951 U 1.62 1.611.36 U 6.53 U 5.89 U 1.44 J 1.39 U536 H 813 H 1220 H 893 H 924 H46.9 J 27.3 19.7 19 59.3 J




126 J 109 J 8.5 UJ 161 J 26.3 J33.6 30.9 21.9 30.3 32.910.3 9.5 9.3 10.7 9.70.27 U 0.27 J 0.22 U 0.25 U 0.26 U

9/10/2003 9/11/20039/11/2003 9/10/2003 9/10/20030 - 2 0 - 20 - 2 0 - 2 0 - 21b 1b1b 1b 1b

1bUP009-091003SO01 1bUP010-091103SO011bUP006-091103SO01 1bUP007-091003SO01 1bUP008-091003SO01


TABLE 4-1


Sample No:IB:







72500 64600 58700 50400 J 465004.76 UJ 0.938 UJ 4.5 UJ 5.22 L 4.17 UJ30.3 20.6 25.9 23.6 L 3573.4 68 54.2 33.3 J 26.54.88 J 0.0768 UJ 6.11 J 0.0743 U 7.93 J1100 907 723 433 J 4692.15 J 1.91 1.7 J 0.193 U 0.885 U22.9 21.5 14.1 6 9.693.8 85.7 69.2 45.3 J 54.4272 228 230 180 J 138

0.185 0.19 0.157 0.539 0.3119.85 8.02 6.5 J 4.16 3.32 J3.39 U 0.668 U 3.2 U 6.67 3.49 J2.65 J 1.78 2.43 J 0.678 J 2.11 J6.71 U 3.68 6.34 U 6.39 U 5.88 U1030 881 977 797 J 122012.6 J 18.5 14.2 0.248 UJ 1.14 U

10 U 10 U NA 10 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA3 U 3 U NA 3 U NA1 U 1 U NA 1 U NA1 U 1 U NA 1 U NA

50 U 49 U NA 47 U NA50 U 49 U NA 47 U NA

NA NA NA NA NA250 U 240 U NA 230 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NA50 U 49 U NA 47 U NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA99 U 98 U NA 94 U NA50 U 49 U NA 47 U NA

NA NA NA NA NANA NA NA NA NA50 U 49 U NA 47 U NA99 U 98 U NA 94 U NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA50 U 49 U NA 47 U NA

NA NA NA NA NA50 U 49 U NA 47 U NA

NA NA NA NA NA

5.8 U 5.7 U NA 5.5 U NA8.8 U 8.6 U NA 8.3 U NA10 J 12 J NA 7.6 U NA

113 L 111 L 15.7 L 17.5 J 6.7 L32.7 J 31.7 J 28.1 J 28.7 20.9 J

11 11 8.8 8.7 8.90.71 J 0.51 J 0.24 U 0.5 U 0.23 U

9/9/2003 9/8/2003 9/9/20039/9/2003 9/9/20030 - 2 0 - 2 0 - 20 - 2 0 - 21b 1b 1b1b 1b

1bUP012-090903SO01 1bUP013-090803SO01 1bUP014-090903SO011bUP011-090903SO01 1bUP011-090903SO01FD


TABLE 4-1


Sample No:IB:







50500 60300 45600 72800 908005.19 4.09 5.77 3.07 1.09 UJ23.1 15.8 23.6 14.9 19.353.3 52.7 J 27.3 H 86.4 H 143 J2.93 14.2 3.24 1.12 0.0893 UJ894 830 J 491 H 725 H 461 J

0.214 J 1.23 3.43 3.24 2.036.81 0.912 J 10.8 21.9 31 J80.3 76.7 76.6 72.1 86.8185 158 118 237 296 J

0.151 0.165 0.427 0.113 J 0.2046.95 6.78 5.54 8.44 9.1416.1 H 3.49 U 0.586 U 0.628 U 2.651.07 2.04 0.187 U 0.2 U 2.821.37 J 6.91 U 19.8 10.3 1.7 J974 826 J 1130 680 477 J34.4 J 7.84 25.1 46 27.8 J




10.1 UJ 19.1 L 15.5 L 24.4 L 419 J27.7 35.3 22.9 26.6 39.5

8.2 8.8 7.6 8.2 9.30.24 U 0.27 U 0.23 U 10.3 15.1

9/7/2003 9/9/2003 9/9/2003 9/7/20039/10/20030 - 2 0 - 2 0 - 2 0 - 20 - 21c 1c 1c 1c1c

1cUP002-090703SO01 1cUP003-090903SO01 1cUP004-090903SO01 1cUP005-090703SO011cUP001-091003SO01


TABLE 4-1


Sample No:IB:







69300 45900 31500 47100 658003.18 4.9 5.85 4.71 L 4.0516.5 22.3 21.6 17.7 L 17.563.8 J 41.2 34 H 48.8 97.611.2 1.91 3.15 0.0772 U 1.21840 J 523 427 H 746 J 7141.23 0.27 J 3.05 0.2 U 0.9046.24 J 6.47 9.43 8.59 19.484.2 53.4 186 66.6 71.1204 246 203 262 239

0.179 0.127 J 0.638 0.167 0.139 J7.24 4.76 4.45 5.73 9.763.33 U 13.1 H 0.564 U 2.32 1.35 H2.39 0.898 0.18 U 0.214 U 0.75510.6 J 1.39 J 15.1 1.33 UJ 1.53 J846 J 793 1130 699 58315.6 J 0.701 J 41.5 2.5 J 16.3 J

NA NA NA 10 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 3 U NANA NA NA 1 U NANA NA NA 1 U NA

NA NA NA 49 U NANA NA NA 49 U NANA NA NA NA NANA NA NA 240 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 49 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 660 U NANA NA NA 49 U NANA NA NA NA NANA NA NA NA NANA NA NA 49 U NANA NA NA 97 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 49 U NANA NA NA NA NANA NA NA 49 U NANA NA NA NA NA

NA NA NA 5.7 U NANA NA NA 8.6 U NANA NA NA 7.9 U NA

38.1 J 50.5 UJ 10.7 L 16.2 J 87.3 L29.5 22.7 19.1 31.4 32.99.7 9.8 7.6 8.6 9.3

0.25 U 0.23 U 0.22 U 0.56 J 29.4

9/10/20039/7/2003 9/10/2003 9/9/2003 9/11/20030 - 20 - 2 0 - 2 0 - 2 0 - 21c1c 1c 1c 1c

1cUP009-091003SO011cUP005-090703SO01FD 1cUP006-091003SO01 1cUP007-090903SO01 1cUP008-091103SO01


TABLE 4-1


Sample No:IB:







69600 28900 58800 56100 379003.31 8.39 J 5.26 4.83 6.1417.9 38.6 21.9 21.7 25.953.9 J 16.5 58.9 57.5 19.2 H11.4 0.313 U 2.41 1.99 2.821100 J 371 878 927 406 H1.27 2.42 J 0.216 U 0.308 J 2.9510.3 11.3 9.54 9.08 9.4589.2 40.1 75.1 77.6 61.3222 237 315 228 147

0.239 0.415 0.144 J 0.175 0.2377.82 5.92 7.59 7.85 3.83.39 U 10.1 13.7 H 13.8 H 0.582 U2.29 0.87 U 1.19 1.01 0.186 U10.8 5.39 U 2.3 J 1.27 U 18.7967 J 1100 H 826 838 12005.99 1.04 U 2.6 J 1.69 J 13.6

NA NA NA 10 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 3 U NANA NA NA 1 U NANA NA NA 1 U NA

NA NA NA 45 U NANA NA NA 45 U NANA NA NA NA NANA NA NA 230 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 45 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 540 U NANA NA NA 45 U NANA NA NA NA NANA NA NA NA NANA NA NA 45 U NANA NA NA 91 U NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA 45 U NANA NA NA NA NANA NA NA 45 U NANA NA NA NA NA

NA NA NA 5.3 U NANA NA NA 13 J NANA NA NA 7.4 U NA

88.9 L 5.2 J 57.2 L 77.9 L 12 L33.3 14.6 36.6 26.6 20

10 8.4 10.9 9.9 7.70.27 J 0.2 U 0.28 U 0.24 U 0.22 U

9/10/2003 9/9/20039/7/2003 9/11/2003 9/10/20030 - 2 0 - 20 - 2 0 - 2 0 - 21c 1c1c 1c 1c

1cUP013-091003SO01 1cUP014-090903SO011cUP010-090703SO01 1cUP011-091103SO01 1cUP012-091003SO01


TABLE 4-1


Sample No:IB:







48800 67200 33800 J 66200 637001.99 J 2.68 J 3.89 L 0.987 U 3.45

15 16.1 19.5 L 14.1 18.351.9 54.7 J 19.4 J 61.3 60.8 J3.95 0.0812 U 0.557 J 1.14 11.5604 849 J 348 J 1050 859 J1.75 1.43 2.93 1.94 1.628.63 24.6 19.8 19.5 9.5366.5 115 519 J 82.8 84.1413 214 60.2 J 265 336

0.184 0.195 0.273 0.244 0.2054.78 11.2 8.95 7.22 7.413.18 U 3.53 U 5.25 J 3.51 U 3.41 U1.57 2.18 0.591 J 1.66 2.431.26 U 8.72 5.96 U 1.39 U 12.3819 H 761 J 531 J 831 H 803 J14.3 223 197 J 24.7 20




39 J 51.3 L 33.5 J 71.9 J 75.1 L26.2 33.5 23.5 33.1 33

10 10.1 7.3 9.9 100.24 U 0.27 U 0.47 U 0.29 J 0.26 U

9/7/20039/11/2003 9/7/2003 9/8/2003 9/11/20030 - 2 0 - 2 0 - 20 - 1 0 - 21c 1c 1c1c 1c

1cUP017-090803SO01 1cUP018-091103SO01 1cUP019-090703SO011cUP015-091103SO01 1cUP016-090703SO01


TABLE 4-1


Sample No:IB:







50500 1800 1900 12100 7070.899 UJ 0.797 U 0.954 U 3.18 0.796 U

18 J 1.75 1.51 12.4 0.603 U69.9 J 77.5 J 81.3 J 68.6 38.4

0.499 J 0.603 J 0.452 J 0.0673 U 0.345 J710 J 7.36 J 4.13 J 107 5.11.69 J 0.293 J 0.204 J 0.175 U 0.169 U28.8 J 7.07 4.93 9.36 1.41738 J 747 632 877 555147 J 46.5 24 71.8 12.20.91 J 0.0602 J 0.12 J 0.155 0.0416 J10.1 J 1.26 1.43 J 3.48 0.241 U2.03 J 0.568 U 0.679 U 3.42 H 0.567 U1.34 J 0.42 J 0.217 U 0.597 J 0.181 U4.58 J 1.12 U 1.34 U 10.4 J 1.12 U643 J 15.5 J 6.85 J 301 8.89166 J 60.3 37.7 162 J 7.17 H




37.8 J 8.3 L 28.7 L 38.2 L 31.1 L26.6 J 17.2 32.8 20.6 18.77.6 6.7 6.9 7.6 7.5

0.24 UJ 0.21 U 0.26 U 0.23 U 0.22 R (8)

9/8/2003 9/6/2003 9/7/2003 9/11/2003 9/12/20030 - 2 0 - 2 0 - 2 0 - 2 0 - 21c 02 02 02 02

1cUP020-090803SO01 02UP001-090603SO01 02UP002-090703SO01 02UP003-091103SO01 02UP004-091203SO01


TABLE 4-1


Sample No:IB:







61100 531 12600 552 1580 J3.19 0.776 U 1.23 J 0.804 U 0.83 UJ43.7 0.588 U 13.8 0.609 U 0.629 U184 H 30.8 61.8 41 2922.13 0.322 J 0.182 J 0.871 0.215 J93.1 H 1.85 9.62 1.17 0.666 H2.69 0.165 U 0.254 J 0.171 U 0.176 UJ138 0.805 J 20.4 1.04 J 1.52557 1170 862 498 660127 5.08 48.5 2.52 1.14

0.515 0.103 J 0.0575 J 0.657 0.038 J25 0.394 J 2.66 0.386 J 0.371 J

3.58 0.553 U 2.35 0.572 U 0.591 U0.191 U 0.212 J 0.259 J 0.914 U 0.189 U

1.18 U 1.09 U 1.19 U 1.13 U 1.17 U126 2.93 19.3 0.945 H 5.19 H361 8.97 H 45.2 10.8 J 38.3 J

NA 8 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 2 U NA NA NANA 1 U NA NA NANA 1 U NA NA NA

NA 40 U NA NA NANA 40 U NA NA NANA NA NA NA NANA 200 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 40 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 140 U NA NA NANA 40 U NA NA NANA NA NA NA NANA NA NA NA NANA 40 U NA NA NANA 79 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA 40 U NA NA NANA NA NA NA NANA 40 U NA NA NANA NA NA NA NA

NA 4.6 U NA NA NANA 71 NA NA NANA 6.4 U NA NA NA

65.7 L 51 L 71.1 J 156 J 33.1 J22.9 15.8 22.4 17.9 21.37.3 7.5 7.3 6 6.8

21.4 0.2 U 10.4 0.22 U 3.6

9/7/20039/9/2003 9/12/2003 9/12/2003 9/9/20030 - 20 - 2 0 - 2 0 - 2 0 - 20202 02 02 02

02UP009-090703SO0102UP005-090903SO01 02UP006-091203SO01 02UP007-091203SO01 02UP008-090903SO01


TABLE 4-1


Sample No:IB:







693 J 111 J 117 J 256 J 4610 J0.807 UJ 0.814 UJ 0.778 UJ 0.796 UJ 0.852 UJ0.977 J 0.617 U 0.589 U 0.603 U 3.88

274 288 277 263 1160.412 J 0.197 J 0.671 0.397 J 1.06

1.14 H 0.662 H 0.417 H 3.83 H 55.7 H0.171 UJ 0.173 UJ 0.165 UJ 0.169 UJ 0.741 J

3.51 1.46 0.527 J 3.27 12.7522 638 502 1230 60413.2 1.11 1.44 3.08 44.2

0.0479 J 0.115 J 0.103 J 0.135 0.0529 J1.08 J 0.247 U 0.236 U 0.301 J 2.42

0.575 U 0.58 U 0.554 U 0.567 U 0.606 U0.236 J 0.264 J 0.227 J 0.457 J 0.363 J

1.14 U 1.15 U 1.1 U 1.12 U 1.2 U1.25 H 0.334 H 0.189 U 5.1 H 81.3 H37.1 J 5.23 J 6.55 J 16.4 J 112 J




57.9 J 58.9 J 49.8 J 49.4 27 J19.8 20.5 19.2 21 22.55.7 4.7 6.1 4.6 6.6

1 0.22 U 0.22 U 0.22 U 0.23 U

9/7/2003 9/7/20039/7/2003 9/7/2003 9/7/20030 - 2 0 - 20 - 2 0 - 2 0 - 202 0202 02 02

02UP013-090703SO01 02UP014-090703SO0102UP010-090703SO01 02UP011-090703SO01 02UP012-090703SO01


TABLE 4-1


Sample No:IB:







302 J 567 J 1800 J 33900 J0.832 UJ 0.811 UJ 0.82 UJ 4.62 L1.34 0.614 U 0.621 U 27.9150 29.1 15.8 38.3

0.518 J 0.474 J 0.595 J 7.254.05 H 2.96 H 14.3 H 306 H

0.177 UJ 0.172 UJ 0.174 UJ 2.64 J1.63 1.78 2.37 17.1379 886 927 1722.95 3.65 8.23 259

0.316 0.102 J 0.482 0.6520.59 J 0.512 J 0.598 J 7.7

0.593 U 0.578 U 0.584 U 0.588 U0.198 J 0.306 J 0.339 J 0.18 U1.17 U 1.14 U 1.16 U 1.12 U4.29 H 2.86 H 20.8 H 950 H11.3 J 9.55 J 15.2 J 370 J

NA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NA

NA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NANA NA NA NA

NA NA NA NANA NA NA NANA NA NA NA

55.9 24.8 J 13 61.620.7 21 20.3 20.84.7 5.4 7.1 7

0.22 U 0.23 U 0.22 U 0.23 U

9/7/2003 9/7/20039/7/2003 9/7/20030 - 2 0 - 20 - 2 0 - 202 0202 02

02UP017-090703SO01 02UP018-090703SO0102UP015-090703SO01 02UP016-090703SO01


TABLE 4-1


Sample No:IB:


Metals UnitAluminum mg/kg 85600 66500 17500 25400 14100Antimony mg/kg 1.06 U 0.941 UJ 0.809 UJ 1.37 J 0.961 JArsenic mg/kg 24.7 18 9.55 13.5 6.24Barium mg/kg 121 177 214 195 220Cadmium mg/kg 2.62 5.28 6.04 5.7 2.54Chromium mg/kg 978 J 522 23.1 107 L 21.3Cobalt mg/kg 1.61 3.45 7.57 6.17 4.17Copper mg/kg 10.4 H 62.8 44.3 110 64 HLead mg/kg 113 J 94.7 J 68.9 J 114 189Manganese mg/kg 238 236 470 313 607Mercury mg/kg 0.206 J 0.258 H 0.0363 H 0.101 J 1.08 JNickel mg/kg 7.8 16.7 19.4 19.4 12.1Selenium mg/kg 0.752 U 0.67 U 0.576 U 0.532 U 0.718 JSilver mg/kg 1.71 1.29 0.869 1.4 0.824Thallium mg/kg 8.79 5.52 2.01 J 1.05 U 1.55 JVanadium mg/kg 738 H 412 39 125 23Zinc mg/kg 21.8 J 297 J 379 J 440 496

VOCsAcetone ug/kg NA NA NA NA NABenzene ug/kg NA NA NA NA NACarbon Disulfide ug/kg NA NA NA NA NAChloroform ug/kg NA NA NA NA NAEthylbenzene ug/kg NA NA NA NA NAIsopropylbenzene ug/kg NA NA NA NA NAMethyl Tertiary Butyl Ether ug/kg NA NA NA NA NAMethylene Chloride ug/kg NA NA NA NA NAToluene ug/kg NA NA NA NA NAXylene (Total) ug/kg NA NA NA NA NA

SVOCs1,1'-Biphenyl ug/kg NA NA NA NA NA2,4,5-Trichlorophenol ug/kg NA NA NA NA NA2-Methylnaphthalene ug/kg 130 U 460 J 100 J 930 U 2300 U4-Nitrophenol ug/kg NA NA NA NA NAAcenaphthene ug/kg 140 J 320 J 85 J 1300 J 3900 JAcenaphthylene ug/kg 64 U 190 J 50 U 470 U 1200 UAnthracene ug/kg 91 12 7.6 260 1200Benzaldehyde ug/kg NA NA NA NA NABenzo(a)anthracene ug/kg 95 26 28 1000 J 6300 JBenzo(a)pyrene ug/kg 90 36 37 1100 J 8900 JBenzo(b)fluoranthene ug/kg 67 33 36 990 J 6600 JBenzo(g,h,i)perylene ug/kg 110 73 65 1500 14000Benzo(k)fluoranthene ug/kg 40 17 18 570 3500bis(2-Ethylhexyl)phthalate ug/kg NA NA NA NA NACarbazole ug/kg NA NA NA NA NAChrysene ug/kg 88 45 37 960 5600Dibenz(a,h)anthracene ug/kg 17 7.2 J 6.4 J 130 J 1200Dibenzofuran ug/kg NA NA NA NA NADi-n-butylphthalate ug/kg NA NA NA NA NAFluoranthene ug/kg 260 57 67 2700 9900Fluorene ug/kg 60 20 J 6 J 100 J 340 JIndeno(1,2,3-cd)pyrene ug/kg 73 J 43 35 1000 J 8900Naphthalene ug/kg 75 U 69 U 58 U 540 U 1300 UN-Nitrosodiphenylamine ug/kg NA NA NA NA NAPhenanthrene ug/kg 340 J 130 49 1400 J 4400 JPhenol ug/kg NA NA NA NA NAPyrene ug/kg 290 82 81 2300 11000PCB-1248 ug/kg NA NA NA NA NAPCB-1254 ug/kg NA NA NA NA NAPCB-1260 ug/kg NA NA NA NA NA

Wet ChemistryFluoride mg/kg 36.5 L 46.8 L 38.7 L 22.6 L 9.5 JMoisture percent 37.5 31.9 19.2 14.3 30.6pH pH units 8.3 8 7.1 7.9 12.5Total Cyanide mg/kg 0.29 U 0.26 U 0.22 U 0.24 J 0.25 UNotes:mg/kg - milligrams per kilogram or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.L - value is biased low.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedR - result rejected in validation.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.PCBs - Polychlorinated Biphenylsbgs - below ground surface.

9/3/2003 9/4/2003 9/4/2003 9/12/2003 9/4/20030 - 20 - 2 0 - 2 0 - 2 0 - 2

3a 3a 3a 3a 3a3aUP005-090403SO013aUP001-090303SO01 3aUP002-090403SO01 3aUP003-090403SO01 3aUP004-091203SO01


TABLE 4-1


Sample No:IB:


Metals UnitAluminum mg/kgAntimony mg/kgArsenic mg/kgBarium mg/kgCadmium mg/kgChromium mg/kgCobalt mg/kgCopper mg/kgLead mg/kgManganese mg/kgMercury mg/kgNickel mg/kgSelenium mg/kgSilver mg/kgThallium mg/kgVanadium mg/kgZinc mg/kg


SVOCs1,1'-Biphenyl ug/kg2,4,5-Trichlorophenol ug/kg2-Methylnaphthalene ug/kg4-Nitrophenol ug/kgAcenaphthene ug/kgAcenaphthylene ug/kgAnthracene ug/kgBenzaldehyde ug/kgBenzo(a)anthracene ug/kgBenzo(a)pyrene ug/kgBenzo(b)fluoranthene ug/kgBenzo(g,h,i)perylene ug/kgBenzo(k)fluoranthene ug/kgbis(2-Ethylhexyl)phthalate ug/kgCarbazole ug/kgChrysene ug/kgDibenz(a,h)anthracene ug/kgDibenzofuran ug/kgDi-n-butylphthalate ug/kgFluoranthene ug/kgFluorene ug/kgIndeno(1,2,3-cd)pyrene ug/kgNaphthalene ug/kgN-Nitrosodiphenylamine ug/kgPhenanthrene ug/kgPhenol ug/kgPyrene ug/kgPCB-1248 ug/kgPCB-1254 ug/kgPCB-1260 ug/kg

Wet ChemistryFluoride mg/kgMoisture percentpH pH unitsTotal Cyanide mg/kgNotes:mg/kg - milligrams per kilogram or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.L - value is biased low.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedR - result rejected in validation.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.PCBs - Polychlorinated Biphenylsbgs - below ground surface.

34600 12500 11100 16500 243001.33 J 0.764 UJ 0.745 U 0.78 U 11 J13.1 13.3 9.01 5.6 10.5179 153 221 247 183

0.874 19.6 0.237 J 0.0638 U 29.4107 L 17.9 16.4 L 21.7 L 359

5.66 7.87 6.43 7.41 7.42228 43.8 15.1 21.8 738141 78 J 18.1 15.9 2170 J355 340 308 229 275

0.216 0.0494 H 0.0301 J 0.0293 J 0.377 H37.3 16.7 14.6 18.5 65.1

0.541 U 0.544 U 0.531 U 0.555 U 2.470.173 U 0.653 0.169 U 0.177 U 0.879

1.07 U 2.04 J 1.38 J 1.1 U 2.87113 30 27.9 42.7 58.9227 701 J 81.4 67.2 566 J


NA NA NA NA NANA NA NA NA NA930 U 190 J 92 U 840 2000 UNA NA NA NA NA

1600 J 140 J 110 J 480 240 U470 U 94 J 46 U 410 300 J230 11 3.3 J 26 61NA NA NA NA NA

1500 J 45 16 28 982400 J 62 20 36 1002000 J 57 25 31 1203400 120 43 45 1501100 30 11 15 58

NA NA NA NA NANA NA NA NA NA

1400 54 19 25 130310 J 13 3.2 J 30 U 7.9 UNA NA NA NA NANA NA NA NA NA

2900 95 42 75 290100 J 9 J 6 J 55 24 U

2300 J 59 18 31 74 J540 U 55 U 54 U 56 U 280 UNA NA NA NA NA

1300 J 74 25 170 270NA NA NA NA NA

2800 120 36 100 310NA NA NA NA NANA NA NA NA NANA NA NA NA NA

29.4 L 16.1 L 20.7 L 25 L 18.4 L14 15.3 13.2 16.2 15.6

8 7.9 7.3 7.5 8.90.21 U 0.21 U 0.2 U 0.21 U 1.6

9/12/2003 9/12/2003 9/4/20039/12/2003 9/4/20030 - 2 0 - 20 - 2 0 - 2 0 - 2

3a 3a 3a3a 3a3aUP009-091203SO01 3aUP010-090403SO013aUP006-091203SO01 3aUP007-090403SO01 3aUP008-091203SO01


TABLE 4-1


Sample No:IB:






29400 J 19800 J 30900 J 11400 J 16300 J1.65 L 0.82 L 2.27 L 7.04 L 4.9416.4 11.3 17.5 26.2 9.63247 152 184 62 84.3

1.65 1.33 2.5 3.45 1.0750.2 J 119 J 37.9 J 28.8 J 18.6 J5.23 4.5 3.39 4.83 4.9929.1 58.2 48.4 38.2 219367 J 407 J 577 J 298 J 117 J263 J 559 J 261 J 183 J 184 J

0.249 H 0.53 H 0.774 H 0.138 H 0.0401 H22.8 24.5 13.3 19.6 21.23.63 0.905 J 1.3 1.95 2.44

0.2 U 0.174 U 0.179 U 0.19 J 0.507 J2.25 J 1.08 U 1.11 U 1.15 U 2.7485.8 J 56.6 J 69.3 J 60.7 J 36.5 J232 187 274 281 167

25 J NA NA NA NA1 U NA NA NA NA1 J NA NA NA NA1 U NA NA NA NA1 U NA NA NA NA1 U NA NA NA NA1 U NA NA NA NA

16 NA NA NA NA1 U NA NA NA NA1 U NA NA NA NA

75 J NA NA NA NA46 U NA NA NA NA

4800 J 1600 J 330 J 9200 J 9200 J230 U NA NA NA NA

2800 1200 J 250 J 4300 74002600 610 J 140 J 4000 3900

100 130 2.6 J 520 9447 J NA NA NA NA

270 450 27 1200 200330 450 22 1400 240360 440 34 1600 210450 660 35 1700 390190 240 14 830 95150 J NA NA NA NA100 J NA NA NA NA440 470 48 1300 370130 U 48 1.6 U 340 U 190 U370 J NA NA NA NA

92 U NA NA NA NA660 1200 41 2900 600190 100 J 12 J 500 360230 380 12 J 980 250500 J 280 U 57 U 390 J 310 U

46 U NA NA NA NA1300 1000 76 3300 2000

46 U NA NA NA NA690 1200 42 2500 8205.4 U NA NA NA NA12 J NA NA NA NA22 J NA NA NA NA

38.4 L 27 L 30.6 L 42 L 51.1 L27.8 15.7 18.6 20.9 25.8

8.8 7.2 7.3 9.2 7.60.24 U 0.21 U 0.22 U 0.22 U 0.23 U

9/5/2003 9/5/2003 9/5/2003 9/5/20039/5/20030 - 2 0 - 2 0 - 20 - 2 0 - 2

3b 3b 3b 3b3b3bUP003-090503SO01 3bUP004-090503SO01 3bUP005-090503SO013bUP001-090503SO01 3bUP002-090503SO01


TABLE 4-1


Sample No:IB:






46700 53200 43200 59300 928000.978 UJ 1.74 J 0.87 UJ 1.05 UJ 1.03 U

15.4 23.6 15.1 19.4 23.1170 128 121 104 156

0.08 UJ 3.17 0.951 L 0.0863 UJ 0.084 U69.1 J 208 33.8 J 81.6 J 3841.13 4.55 7.03 0.816 2.6313.5 43.5 H 18.8 4.87 13 H61.5 142 98.3 41.1 88.4116 J 439 301 J 250 J 470

0.0947 J 0.341 J 0.128 J 0.147 J 0.462 J4.79 14 33.1 3.02 7.03

0.696 U 0.677 J 1.61 0.751 U 0.731 U1.77 0.21 U 1.16 1.74 0.233 U1.38 U 1.3 U 1.23 U 1.49 U 1.45 U156 277 85.4 191 385

68.7 514 159 29.2 35.2

NA 10 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 16 NA NA NANA 1 U NA NA NANA 1 U NA NA NA


5900 UJ 350 J 780 J 130 U 120 UNA NA NA NA NA

4800 J 300 J 650 J 64 U 130 J3000 U 56 U 340 J 64 U 62 U1800 19 27 J 1.1 J 3.7 J

NA NA NA NA NA3200 J 59 J 96 4.4 J 22 J3000 J 54 J 110 6.4 J 29 J2500 J 58 J 95 7.6 J 33 J3600 68 150 12 J 551500 29 60 3.7 J 16


3100 69 110 7.7 J 30200 J 6.8 J 41 U 3.1 J 5.5 JNA NA NA NA NANA NA NA NA NA

9200 140 210 11 46520 J 20 J 50 J 6.4 U 6.2 U

2300 J 40 100 5.8 J 283500 U 65 U 310 U 75 U 73 U

NA NA NA NA NA7700 J 130 J 280 7.1 J 21 J

NA NA NA NA NA8300 140 210 12 J 52


15.6 L 65.8 J 25.5 L 21.9 L 48.8 J32.5 28.5 24.9 37.4 35.710.8 8.6 8.1 10 9.50.25 U 1.3 0.24 U 0.83 0.88

9/4/20039/5/2003 9/4/2003 9/5/2003 9/5/20030 - 2 0 - 2 0 - 2 0 - 20 - 2

3b3b 3b 3b 3b3bUP007-090403SO01 3bUP008-090503SO01 3bUP009-090503SO01 3bUP010-090403SO013bUP006-090503SO01


TABLE 4-1


Sample No:IB:






1630 13800 37700 21400 825001.89 J 1.97 L 3.99 0.81 UJ 0.983 UJ1.92 13.8 31.8 10.9 29.479.1 85 88.6 207 172

0.626 J 1.52 1.56 2.85 1.589.33 26.3 292 76.2 228

0.314 J 9.23 2.52 6.9 2.338.78 31.7 14.5 35.2 13.22330 J 56.3 237 67.4 J 71.4 J15.8 148 404 362 365

0.106 H 0.092 J 0.367 0.0706 H 0.331 H1.88 25.9 10.5 19.6 6.87

0.619 U 3.08 6.55 H 0.577 U 0.7 U1.37 0.214 U 0.335 J 0.73 2.741.23 U 1.32 U 2.62 J 2.13 J 4.6411.3 34.3 487 98.7 33531.5 J 214 117 J 216 J 50.5 J


NA NA NA NA NANA NA NA NA NA170 J 1100 UJ 1700 J 98 U 120 JNA NA NA NA NA120 J 570 U 530 U 67 J 79 J

75 J 570 U 530 U 49 U 71 J3.2 J 24 J 27 J 3.6 J 4.6 JNA NA NA NA NA8.6 J 68 J 110 J 17 1611 J 94 J 170 J 29 20 J12 J 110 J 81 J 29 2121 190 J 750 54 42

6 J 50 J 35 J 15 9.8 JNA NA NA NA NANA NA NA NA NA15 J 85 J 120 J 23 20

2 J 75 UJ 97 J 3.9 J 3.6 JNA NA NA NA NANA NA NA NA NA23 170 190 34 30

9.5 J 57 U 53 U 5.1 J 8.7 J10 J 88 J 140 J 31 2363 U 660 U 620 U 57 U 71 U

NA NA NA NA NA43 230 J 380 J 25 36

NA NA NA NA NA33 J 200 J 310 J 45 44


4.3 L 197 J 52.3 L 36.5 L 68.9 L25.6 29.8 24.7 18.5 34.2

6 8.3 8 8.6 8.80.24 U 0.36 J 0.24 U 0.21 U 0.96

9/4/2003 9/4/20039/4/2003 9/12/2003 9/11/20030 - 20 - 2 0 - 2 0 - 2 0 - 2

3b 3b3b 3b 3b3bUP015-090403SO013bUP011-090403SO01 3bUP012-091203SO01 3bUP013-091103SO01 3bUP014-090403SO01


TABLE 4-1


Sample No:IB:






69400 4180 12700 96400 142000.98 UJ 0.811 U 0.943 J 0.771 U 0.773 U21.5 1.77 7.03 5.81 5.3129 110 66.9 90.4 75.2

1.85 1.2 0.0674 U 0.878 0.539 J625 12.6 J 67.9 14 J 21.1 J

1.37 2.08 7.24 4.96 6.9417.6 15.3 H 14 14.1 H 13.7 H78.2 J 454 J 42.1 39.8 J 14.3 J201 37.3 149 399 300

0.261 H 0.198 J 0.114 J 0.0328 J 0.0204 J7.29 8.58 26 12.3 14.8

0.698 U 0.577 U 1.94 H 1.48 0.702 J1.21 0.5 J 0.187 U 0.175 U 0.253 J5.84 1.14 U 2.14 J 1.38 J 1.76 J656 17.2 H 61.8 27.7 H 38.7 H

39.6 J 73 J 93.7 J 63.5 J 41.4 J


NA NA NA NA NANA NA NA NA NA120 U 500 U 1500 J 3100 J NANA NA NA NA NA61 U 450 J 760 6500 NA

290 J 250 U 710 480 U NA2.6 J 9.5 J 50 1500 NANA NA NA NA NA13 22 J 40 7100 J NA24 23 J 31 5800 J NA25 24 J 24 5900 J NA45 30 J 27 8100 NA13 11 J 10 3300 NA

NA NA NA NA NANA NA NA NA NA29 36 J 54 7100 NA

2.3 J 8.3 U 1.7 U 510 J NANA NA NA NA NANA NA NA NA NA36 58 110 16000 NA

6.1 U 34 J 90 520 NA25 19 J 19 4800 J NA71 U 290 U 59 U 560 U NA

NA NA NA NA NA31 95 J 330 8100 J NA

NA NA NA NA NA42 78 J 210 15000 NA


43.9 L 16.2 J 35.5 L 8.2 L 2.2 L34.6 19.4 21.5 16.1 15.5

8.4 5.7 7.7 7.7 8.20.27 U 0.22 U 0.25 J 0.21 U 0.21 U

9/11/2003 9/3/2003 9/3/20039/4/2003 9/3/20030 - 2 0 - 20 - 2 0 - 2 0 - 2

3b 3b 3b3b 3b3bUP019-090303SO01 3bUP020-090303SO013bUP016-090403SO01 3bUP017-090303SO01 3bUP018-091103SO01


TABLE 4-1


Sample No:IB:






16200 54400 10800 78000 495000.867 U 0.92 U 0.78 U 2.73 J 0.849 U

15.4 28.6 7.39 19.8 13.7102 326 122 147 1821.2 2.44 0.611 0.275 J 2.22

17.9 J 79.5 J 18.8 J 976 463 J1.65 9.79 6.96 2.85 6.9421.9 H 51.4 H 14.4 H 18.2 H 14.6 H687 J 109 J 9.34 J 151 61.3 J144 200 555 225 395

0.428 J 0.062 J 0.0179 J 0.282 J 0.119 J6.9 33.8 16.7 8.95 17.91.1 J 0.891 J 0.556 U 0.709 U 0.605 U

0.724 0.438 J 0.177 U 0.226 U 0.7541.22 U 2.36 J 1.56 J 1.4 U 4.6731.4 H 151 H 36.1 H 813 333 H71.7 J 541 J 43.5 J 87.9 366 J

NA 10 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 1 U NA NA NANA 4 J NA NA NANA 1 U NA NA NANA 1 U NA NA NA

NA NA NA NA NANA NA NA NA NA530 U 110 U 95 U 120 U 100 UNA NA NA NA NA380 J 92 J 47 U 60 U 52 U260 U 56 U 47 U 60 U 52 U

34 J 5.5 J 1.6 J 9.5 6.6 UNA NA NA NA NA170 23 5.8 J 40 J 4.9 J220 30 7.3 J 59 J 7.1 J240 31 6.7 J 51 J 7.7 J370 50 12 J 120 14 J120 16 3.5 J 27 3.8 JNA NA NA NA NANA NA NA NA NA210 28 6.2 J 51 8.1 J

29 J 4.6 J 1.9 J 5 J 1.9 JNA NA NA NA NANA NA NA NA NA350 60 10 85 12

29 J 5.6 U 4.7 U 7.9 J 5.2 U220 J 30 J 6.6 J 59 6.4 J310 U 66 U 55 U 70 U 61 UNA NA NA NA NA150 J 34 J 4.9 J 53 J 8 JNA NA NA NA NA410 59 12 J 96 13 JNA NA NA NA NANA NA NA NA NANA NA NA NA NA

31.6 J 244 J 2.2 L 23.2 L 85 J23.9 29 15.4 33.7 23.8

7.6 5.1 8.1 7.8 8.10.42 J 6.4 0.21 U 0.26 U 0.23 U

9/3/2003 9/3/2003 9/3/2003 9/3/20039/3/20030 - 2 0 - 2 0 - 20 - 2 0 - 2

3b 3b 3b 3b3b3bUP023-090303SO01 3bUP024-090303SO01 3bUP025-090303SO013bUP021-090303SO01 3bUP022-090303SO01


TABLE 4-1


Sample No:IB:






21700 8250 62100 21200 54200.849 U 0.794 U 2.62 J 1.21 J 1.2 J

10.2 3.9 20.3 10.5 5.21257 69.3 126 404 137

0.508 J 0.39 J 0.0718 U 1.28 0.587 J31.3 39.1 375 35.4 12.77.22 5.68 2.81 8.68 1.1725.3 H 19.9 H 39.6 H 115 H 40.9 H97.4 129 113 351 662371 105 271 540 18.8

0.058 J 0.116 J 0.587 J 1.53 J 0.445 J20.4 18.7 8.04 26.1 3.63

0.871 J 0.645 J 0.625 U 1.31 0.641 J0.193 U 0.18 U 0.199 U 0.193 U 0.448 J

1.2 U 1.12 U 1.24 U 1.2 J 1.22 U72 30.8 646 67.1 13.3

124 66.2 80.9 332 28.3

NA NA NA 9 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 1 U NANA NA NA 4 J NANA NA NA 1 U NANA NA NA 1 U NA

NA NA NA 43 U NANA NA NA 45 J NA100 U 1800 J 230 J 2500 J 290 JNA NA NA 210 U NA100 J 980 J 300 J 4200 J 52 U

51 U 740 J 100 J 1300 J 52 U13 45 31 1100 9.2

NA NA NA 43 U NA53 J 46 J 140 J 4700 J 42 J63 J 51 J 160 J 4500 J 40 J52 J 54 J 140 J 1 R 45 J

100 59 J 250 5400 5029 21 J 75 2000 21

NA NA NA 130 J NANA NA NA 970 NA57 71 J 150 4100 54

7.5 33 J 16 420 J 3.1 JNA NA NA 330 J NANA NA NA 86 U NA120 120 290 10000 905.7 J 87 J 19 J 290 J 5.2 U65 47 J 150 3600 J 2460 U 290 U 62 U 1200 U 61 U

NA NA NA 43 U NA69 J 420 J 200 J 5700 J 87 J

NA NA NA 43 U NA120 210 300 9100 110NA NA NA 5 U NANA NA NA 32 NANA NA NA 61 J NA

95 L 43.7 L 29 L 10.3 L 24.2 L22.3 19.3 24.8 22.4 23.7

8.3 6 7.8 10.6 5.80.23 U 0.22 U 0.24 U 0.28 J 0.23 U

9/3/20039/3/2003 9/3/2003 9/3/2003 9/3/20030 - 2 0 - 2 0 - 2 0 - 20 - 2

3b3b 3b 3b 3b3bUP027-090303SO01 3bUP028-090303SO01 3bUP029-090303SO01 3bUP030-090303SO013bUP026-090303SO01


TABLE 4-1


Sample No:IB:






56300 J 40500 J 58000 J 88700 J 851005.16 L 2.37 L 2 L 1.29 L 1.05 UJ48.5 33.2 34 17.4 17.589.2 77.8 86.7 172 140

0.063 U 0.684 1.52 0.154 J 0.0861 UJ55.7 J 31 J 34.9 J 100 H 84.3 J1.23 1.86 1.4 2.93 J 2.2710.1 13.7 15.6 18.8 20.1

32 J 40.9 J 60.9 J 81.6 90.92110 J 1310 J 1580 J 284 356 J

0.257 H 0.153 H 0.227 H 0.17 0.2194.28 10.4 5.93 5.29 6.372.74 U 0.557 U 0.576 U 0.752 U 0.749 U

0.175 U 0.178 U 0.184 U 0.24 U 2.955.71 1.1 U 4.75 1.49 U 1.48 U419 J 212 J 241 J 122 H 129

20.7 89.3 107 25.9 J 67.7

NA NA 9 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 1 U NA NANA NA 3 U NA NANA NA 1 U NA NANA NA 3 J NA NA

NA NA 42 U NA NANA NA 42 U NA NANA NA NA NA NANA NA 210 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 42 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 200 J NA NANA NA 42 U NA NANA NA NA NA NANA NA NA NA NANA NA 42 U NA NANA NA 83 U NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA 42 U NA NANA NA NA NA NANA NA 42 U NA NANA NA NA NA NANA NA 4.9 U NA NANA NA 7.4 U NA NANA NA 7.8 J NA NA

10.3 L 10 L 9.7 L 93.9 25 L15.1 18.9 20 38.7 39.1

8.3 8 8.4 10.6 9.22.1 0.44 J 0.22 U 0.28 U 0.29 U

9/6/2003 9/5/20039/5/2003 9/5/2003 9/5/20030 - 20 - 2 0 - 2 0 - 2 0 - 2

4a 4a4a 4a 4a4aUP005-090503SO014aUP001-090503SO01 4aUP002-090503SO01 4aUP003-090503SO01 4aUP004-090603SO01


TABLE 4-1


Sample No:IB:






70000 75000 48600 10900 116000 J0.839 U 4.12 UJ 4.13 UJ 0.841 UJ 1.16 UJ

34 20.4 20.3 17.5 16116 129 79.5 96.5 138

2.04 0.0673 UJ 0.0676 UJ 3.66 L 0.1 J65.9 59.1 J 41.9 J 26.8 J 90.3 H2.21 J 1.24 J 2.99 7.82 2.83 J14.4 10.2 18.7 39.3 38.346.5 42.7 33.4 64.7 79.71200 1320 J 1420 J 221 J 317

0.197 0.164 0.17 0.0519 J 0.423.69 2.74 10.5 31.6 8.032.27 J 4 J 4.77 2.18 1.942.16 1.7 0.84 0.191 U 0.264 U

7.3 1.16 U 1.16 U 1.19 U 1.64 U248 245 209 44 125 H

37.9 J 45.5 60.3 218 59.8 J

9 U 9 U NA NA NA1 U 1 U NA NA NA1 U 1 U NA NA NA1 U 1 U NA NA NA1 U 1 U NA NA NA1 U 1 U NA NA NA1 U 1 U NA NA NA3 U 6 J NA NA NA1 U 1 U NA NA NA1 U 5 J NA NA NA

43 U 42 U NA NA NA43 U 42 U NA NA NA

NA NA NA NA NA220 U 210 U NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA43 U 42 U NA NA NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA86 U 97 J NA NA NA43 U 42 U NA NA NA

NA NA NA NA NANA NA NA NA NA43 U 42 U NA NA NA86 U 84 U NA NA NA

NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA43 U 42 U NA NA NA

NA NA NA NA NA43 U 42 U NA NA NA

NA NA NA NA NA5.1 U 4.9 U NA NA NA7.7 U 7.4 U NA NA NA

7 U 6.8 U NA NA NA

9.7 8.7 L 9.2 L 21.4 L 10222.9 20.6 20.1 23.1 43.2

8.5 8.5 7.9 8.2 8.40.23 U 0.37 J 0.52 J 0.24 U 0.55 J

9/5/2003 9/5/2003 9/6/20039/5/2003 9/5/20030 - 2 0 - 20 - 2 0 - 2 0 - 2

4a 4a 4a4a 4a4aUP008-090503SO01 4aUP009-090603SO014aUP006-090503SO01 4aUP006-090503SO01FD 4aUP007-090503SO01


TABLE 4-1


Sample No:IB:






91400 95500 117000 46600 446001.09 UJ 1.06 J 1.05 U 0.897 UJ 2.27 L21.4 22 21.3 11.6 L 23.8 L141 146 H 153 H 260 578

0.0892 U 0.0908 J 0.0857 U 6.81 8.2994.1 103 H 138 H 46.9 J 30.5 J

2.6 2.9 2.93 9.91 6.529.41 17.1 23.7 47.5 84.877.5 86.4 102 101 1050342 409 391 286 255

0.325 0.292 0.189 0.0827 J 0.6885.17 6.37 7.65 60.9 30.9

0.989 J 0.711 U 0.746 U 0.693 J 1.860.248 U 0.227 U 0.238 U 0.204 U 0.319 J

1.54 U 1.53 J 4.81 3.21 J 3.71 J137 136 124 79.4 51.7

18.3 47.1 51 582 1210


NA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NA

71.3 J 158 L 171 L 39.8 J 38.2 J41.2 35.2 38.8 26.4 1910.7 11.4 11.8 7.3 7.60.35 J 0.57 J 5.6 0.23 U 0.21 U

9/9/2003 9/9/2003 9/8/2003 9/8/20039/12/20030 - 2 0 - 2 0 - 20 - 2 0 - 2

4a 4a 4c 4c4a4aUP012-090903SO01 4cUP001-090803SO01 4cUP002-090803SO014aUP010-091203SO01 4aUP011-090903SO01


TABLE 4-1


Sample No:IB:






76600 116000 11100 5930 135000 J1.64 L 1.09 L 1.16 L 1.5 L 3.52 J

19 L 14.9 L 8.5 L 22 L 25 J130 139 130 190 85.8 J

0.822 1.04 0.0842 J 0.0712 U 0.156 J39.7 J 85.1 J 25.5 J 33.9 J 24.4 J1.71 1.05 6.23 1.57 1.07 J70.6 7.77 17 13.5 3.45 J67.2 65.8 19.4 77.6 47.5 J532 348 442 15.1 1410 J

0.109 J 0.152 0.031 J 0.126 J 0.174 J6.11 7.32 21 13.1 2.38

0.725 U 0.661 U 1.95 15.3 2.16 J0.231 U 0.211 U 0.171 U 0.466 J 0.181 U

1.43 UJ 3.2 J 2.59 J 2.9 J 1.12 UJ112 114 41.4 34.4 238 J

92.1 63.3 75.7 34.3 35.1 J

NA NA NA NA 9 UNA NA NA NA 1 UNA NA NA NA 1 UNA NA NA NA 1 UNA NA NA NA 1 UNA NA NA NA 1 UNA NA NA NA 1 UNA NA NA NA 3 JNA NA NA NA 1 UNA NA NA NA 1 J

NA NA NA NA 41 UNA NA NA NA 41 UJNA NA NA NA NANA NA NA NA 210 UNA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA 41 UNA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA 82 UJNA NA NA NA 41 UNA NA NA NA NANA NA NA NA NANA NA NA NA 41 UNA NA NA NA 82 UJNA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA NANA NA NA NA 41 UNA NA NA NA NANA NA NA NA 41 UNA NA NA NA NANA NA NA NA 4.8 JNA NA NA NA 7.3 UNA NA NA NA 6.7 J

13.8 J 45.6 J 7.1 J 7.2 J 17.5 J35.8 31.6 13 25.6 18.9 J

8.6 10.8 7.7 3.5 8.2 J0.28 U 0.26 U 0.2 U 0.24 U 0.22 UJ

9/8/20039/8/2003 9/8/2003 9/8/2003 9/8/20030 - 2 0 - 2 0 - 2 0 - 20 - 2

4c4c 4c 4c 4c4cUP004-090803SO01 4cUP005-090803SO01 4cUP006-090803SO01 4cUP007-090803SO014cUP003-090803SO01


TABLE 4-1


Sample No:IB:






46600 72200 655000.87 UJ 1.12 L 1.36 L13.8 L 21.7 L 22.9 L160 140 176

1.74 0.754 1.7633.3 J 35.8 J 38.3 J4.34 1.98 2.3124.5 10.7 14.3

79 54.4 191258 302 321

0.108 J 0.104 J 0.15223.3 7.95 7.451.14 J 1.04 J 0.703 J

0.198 U 0.209 U 0.219 U4.29 J 2.5 J 2.38 J69.3 117 122309 61.9 181

NA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NA

NA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NANA NA NA

13.1 J 35.2 J 139 J24.9 31.1 32.8

7.8 8 7.90.24 U 0.26 U 0.27 U

9/8/2003 9/8/2003 9/8/20030 - 2 0 - 2 0 - 24c 4c 4c

4cUP008-090803SO01 4cUP009-090803SO01 4cUP010-090803SO01


TABLE 4-2

SUMMARY OF RADIOLOGICAL RESULTS FOR SURFACE SAMPLESNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample Number:IB:

Depth (feet):Sample Date:

Parameter UnitsActinium 228 pCi/g 14.8 10 11.1 22.8 24.6 11.5 27.6Bismuth 212 pCi/g 9.5 6.2 10.2 16.1 16 8.5 16.2Bismuth 214 pCi/g 5.36 6.5 5.1 5.8 9.7 5.11 4.14Cesium 137 pCi/g 0.22 U 1.04 1.13 0.43 U 0.4 U 0.36 U 0.38 UEuropium 155 pCi/g 0.93 0.75 U 0.82 1.55 1.01 0.84 1.9Lead 210 pCi/g NA 11 6 NA NA NA NALead 212 pCi/g 14.8 12.1 12 25.3 28.1 13.6 29.2Lead 214 pCi/g 5.16 6.1 5.08 7.3 9.4 5.43 5.48Potassium 40 pCi/g 2.5 U 9.9 6.3 4.6 U 4.3 U 5.2 4 URadium 226 pCi/g 5.36 6.5 5.1 5.8 9.7 5.11 4.14Radium 224 pCi/g NA NA NA NA NA NA NARadium 228 pCi/g 14.8 10 11.1 22.8 24.6 11.5 27.6Thallium 208 pCi/g 4.98 4.05 3.76 8.3 8.8 4.28 9.4Thorium 232 pCi/g NA NA NA NA NA NA NAThorium 234 pCi/g 11.1 13.2 11.6 26.4 26.4 12.2 21.2Uranium 238 pCi/g NA NA 11.6 NA NA NA 21.2

Sample Number:IB:


Parameter UnitsActinium 228 pCi/g 18.1 8.1 14.2 1.74 22.5 15.7 12.8Bismuth 212 pCi/g 8.8 4 8.1 1.26 15.2 11.4 9.2Bismuth 214 pCi/g 5.9 4.16 5.79 4.26 3.56 3.01 4.32Cesium 137 pCi/g 0.42 U 1.44 0.29 U 0.39 0.46 U 0.23 U 0.33 UEuropium 155 pCi/g 0.89 0.55 0.69 U 0.32 U 1.42 0.76 0.92Lead 210 pCi/g NA NA NA NA NA NA NALead 212 pCi/g 19.5 7.6 15.9 2.24 24.3 16.7 14.9Lead 214 pCi/g 6.4 4.92 5.7 4.08 3.42 2.96 3.93Potassium 40 pCi/g 3.6 U 9.5 3.4 U 11.4 4.7 U 2.1 U 3.5 URadium 226 pCi/g 5.9 4.16 5.79 4.26 3.56 3.01 4.32Radium 224 pCi/g NA NA NA NA NA NA NARadium 228 pCi/g 18.1 8.1 14.2 1.74 22.5 15.7 12.8Thallium 208 pCi/g 6 2.12 5.48 0.88 7.6 5.18 4.84Thorium 232 pCi/g NA NA NA NA NA NA NAThorium 234 pCi/g 18.7 7.2 16.8 4.9 17.4 12.2 11.9Uranium 238 pCi/g NA NA NA NA NA NA NANotes:pCi/g - picocuries per gram.U - not detectedJ - estimated value

9/21/20049/21/2004 9/22/2004

9/21/2004

0 - 6 0 - 61b 1b

1bUP001-092104SO01 1bUP002-092204SO01

9/22/2004 9/22/2004 9/22/2004 9/22/2004

9/21/2004 9/22/2004 9/21/2004 9/22/2004

0 - 60 - 6 0 - 6 0 - 6 0 - 6

0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/22/2004 9/22/2004

0 - 6 0 - 6

1b1a 1a 1a 1a

1a 1a 1a 1a

1bUP012-092104SO01

1bUP004-092104SO011a 1a 1b

1aUP013-092204SO01 1aUP015-092204SO01 1aUP017-092204SO01 1aUP019-092204SO01

1AUP001-092104SO01 1AUP003-092104SO01 1AUP005-092104SO01 1AUP007-092204SO01 1aUP009-092204SO01 1AUP012-092204SO01


TABLE 4-2


Sample Number:IB:


Parameter UnitsActinium 228 pCi/gBismuth 212 pCi/gBismuth 214 pCi/gCesium 137 pCi/gEuropium 155 pCi/gLead 210 pCi/gLead 212 pCi/gLead 214 pCi/gPotassium 40 pCi/gRadium 226 pCi/gRadium 224 pCi/gRadium 228 pCi/gThallium 208 pCi/gThorium 232 pCi/gThorium 234 pCi/gUranium 238 pCi/g

Sample Number:IB:


Parameter UnitsActinium 228 pCi/gBismuth 212 pCi/gBismuth 214 pCi/gCesium 137 pCi/gEuropium 155 pCi/gLead 210 pCi/gLead 212 pCi/gLead 214 pCi/gPotassium 40 pCi/gRadium 226 pCi/gRadium 224 pCi/gRadium 228 pCi/gThallium 208 pCi/gThorium 232 pCi/gThorium 234 pCi/gUranium 238 pCi/gNotes:pCi/g - picocuries per gram.U - not detectedJ - estimated value

28.1 40 NA 31.7 35.7 23.7 27.816.6 26.6 NA 23.4 24.1 14.8 18

4.3 5.1 0.17 U 5.2 5.9 4.13 5.70.37 U 0.44 U 0.071 U 0.43 U 0.36 U 0.32 U 0.36 U1.99 2.2 0.12 U 2.26 2.25 1.01 2.12NA NA NA NA NA NA NA

29.5 45 0.08 U 35.5 39.1 24.7 29.34.61 6.2 0.12 U 5.6 6.05 3.88 5.04

4.1 U 4.9 U 1.2 U 4.4 U 3.8 U 3.9 3.8 U4.3 5.1 0.17 U 5.2 5.9 4.13 5.7NA NA NA NA NA NA NA

28.1 40 0 31.7 35.7 23.7 27.89.7 14.3 0.08 U 11.1 12.4 8.1 9.4NA NA NA NA NA NA NA

23.8 34.7 0.64 U 28.3 21.7 15.9 23.4NA NA NA 28.3 NA NA NA

15.9 30.6 2.1 37.4 25.7 29.8 NA10.5 17.5 1.25 23.2 16.2 18.1 NA3.53 5.19 0.7 5.5 3.78 5.5 0.31 U0.22 U 0.43 U 0.18 U 0.41 U 0.38 U 0.34 U 0.320.96 1.65 0.24 U 2.03 1.25 2.14 0.15 UNA NA NA NA NA NA NA

16.5 31.2 1.99 42.1 27.7 30.8 0.354.04 4.78 0.52 5.8 3.78 5.99 0.24 U

2 U 4.7 U 1.5 U 4.1 U 3.2 U 3.6 1.4 U3.53 5.19 0.7 J 5.54 3.78 5.5 0.31 UNA NA NA NA NA NA NA

15.9 30.6 2.1 37.4 25.7 29.8 NA5.47 10 0.57 13.5 9 9.9 0.15 UNA NA NA NA NA NA NA

11.3 23.3 1.66 27.2 20.4 19.1 0.99 UNA NA NA NA NA NA 0.99 U

1c0 - 6

9/21/2004 9/21/20040 - 6 0 - 61c 1c

9/21/2004

9/21/2004

9/21/2004

9/21/2004 9/21/2004 9/24/2004

9/21/2004

0 - 69/24/2004

0 - 6 0 - 6

02UP001-092404SO01

9/21/2004 9/21/2004 9/21/2004 9/21/2004

0 - 6 0 - 6 0 - 6

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6

1b 1c 1c

1b 1b

1CUP019-092104SO0102

1c 1c1CUP007-092104SO01FD 1CUP009-092104SO011bUP010-092104SO01 1bUP011-092104SO01

1bUP014-092104SO01 1CUP001-092104SO01 1cUP003-092404SO01 1CUP005-092104SO01 1CUP007-092104SO01

1b 1b1bUP006-092104SO01

1b1bUP007-092104SO01 1bUP008-092104SO01


TABLE 4-2


Sample Number:IB:



Sample Number:IB:



18.5 37.5 29.5 4.3 NA NA NA14.7 25 21.4 2.8 NA NA NA4.12 5.5 5.8 0.95 0.3 U 0.35 0.18 U0.25 U 0.45 U 0.39 U 0.29 0.133 0.097 U 0.096 U0.86 1.98 1.74 0.37 U 0.15 U 0.18 U 0.13 UNA NA NA NA NA NA NA20 41.5 32.7 3.97 0.48 0.52 0.095 U

4.46 5 6.4 0.87 0.23 0.3 0.18 U2.6 U 4.4 U 3.7 U 2 U 1.2 U 1.6 U 1.3 U

4.12 5.5 5.8 0.95 J 0.3 U 0.35 J 0.18 UNA NA NA NA NA NA NA

18.5 37.5 29.5 4.3 NA 0 NA6.6 14.1 10.4 1.28 0.16 U 0.183 0.091 UNA NA NA NA NA NA NA

13.2 28.6 26.4 3.9 1 U 1 U 0.75 UNA NA NA NA 1 U NA NA

NA 2.2 NA 5.8 NA NA 1.52NA NA NA 3.3 NA NA 0.93

0.23 U 0.55 0.47 1.49 0.18 U 0.24 U 0.340.16 U 0.88 0.12 U 0.18 U 0.07 U 0.16 U 0.1170.14 U 0.26 U 0.17 U 0.36 U 0.11 U 0.15 U 0.23 UNA NA NA NA NA NA NA

0.32 2.09 0.59 5.77 0.087 U 0.24 1.360.2 U 0.66 0.43 1.66 0.13 U 0.23 U 0.281.6 U 1.7 U 1.8 U 2 U 0.96 U 1.3 U 1.4 U

0.23 U 0.55 J 0.47 J 1.49 0.18 U 0.24 U 0.34 JNA NA NA 8.1 NA NA NANA 2.2 NA 5.82 NA NA 1.52

0.13 U 0.79 0.23 1.95 0.067 U 0.15 U 0.45NA NA NA NA NA NA NA

0.87 U 1.4 U 1.2 U 5.2 0.62 U 1.1 U 1.310.87 U NA NA NA 0.62 U NA NA

9/21/20049/22/2004 9/21/2004 9/22/2004

9/21/20040 - 6 0 - 6

9/24/2004 9/21/2004

9/24/2004 9/21/2004 9/21/20040 - 60 - 6 0 - 6

9/24/2004 9/21/2004 9/21/2004

0 - 6 0 - 6 0 - 6

02UP002-092404SO01 02UP003-092104SO01 02UP004-092104SO01

0 - 6 0 - 6

1c 1c 1c 1c

02 02 02

0 - 6

1CUP015-092204SO01 1CUP017-092104SO01

02 02 02 02

1CUP011-092204SO01 1CUP013-092104SO01

02UP012-092404SO01 02UP013-092104SO01 02UP014-092104SO01

02

02UP005-092104SO01

02UP006-092404SO01 02UP007-092104SO01 02UP008-092104SO0102 02

0 - 6 0 - 60 - 69/21/2004


TABLE 4-2


Sample Number:IB:



Sample Number:IB:



1.12 NA NA NA NA NA 0.67NA NA NA NA NA NA NA

3.38 0.29 U 0.16 U 0.35 U 0.25 U 0.15 U 0.340.15 U 0.11 U 0.11 U 0.11 U 0.15 U 0.065 U 0.12 U0.28 U 0.16 U 0.1 U 0.17 U 0.14 U 0.1 U 0.18 UNA NA NA NA NA NA NA

1.17 0.14 U 0.13 U 0.41 0.17 U 0.096 U 0.614.06 0.17 U 0.15 U 0.52 0.21 U 0.11 U 0.31

8.1 1.5 U 1.1 U 1.8 U 1.1 U 1.1 U 1.4 U3.38 0.29 U 0.16 U 0.35 U 0.25 U 0.15 U 0.34 JNA NA NA NA NA NA NA

1.12 NA NA NA NA NA 0.670.46 0.14 U 0.082 U 0.19 U 0.11 U 0.064 U 0.2121.12 NA NA NA NA NA NA2.87 0.78 U 0.64 U 1.1 U 0.98 U 0.56 U 0.94 U2.87 0.78 U 0.64 U 1.1 U 0.98 U 0.56 U 0.94 U

NA NA 1.25 NA NA NA 10NA NA 1.6 NA NA NA 6.9

0.22 U 0.31 U 0.5 0.3 0.45 0.38 2.620.14 U 0.18 U 0.1 U 0.088 U 0.1 U 0.086 U 0.23 U0.13 U 0.16 U 0.21 U 0.18 U 0.17 U 0.16 U 0.57NA NA NA NA NA NA NA

0.32 0.23 U 1.42 0.43 0.6 0.46 11.60.19 U 0.25 U 0.32 0.31 0.38 0.3 2.46

1.1 U 1.5 U 1.3 U 1.8 U 1.7 U 2.3 2.6 U0.22 U 0.31 U 0.5 J 0.3 J 0.45 J 0.38 J 2.62NA NA NA NA NA NA 13.2NA NA 1.25 NA NA NA 10

0.13 0.13 U 0.54 0.146 0.23 0.14 U 3.44NA NA NA NA NA NA NA

0.73 U 0.98 U 1.2 U 0.9 U 1 U 0.92 U 8.6NA NA NA 0.9 U NA 0.92 U 8.6

9/24/2004 9/24/2004 9/24/2004 9/24/20049/21/2004 9/21/20049/21/2004

9/24/20040 - 6

0 - 6 0 - 6 0 - 6 0 - 6

9/24/2004 9/24/2004 9/24/2004 9/24/20040 - 6 0 - 6 0 - 6

9/24/2004

02 020 - 6

02

0 - 6 0 - 6 0 - 6

9/24/2004

02 02 02 02 02

0202

02 02

0 - 6 0 - 6

02UP024-092404SO01 02UP024-092404SO01FD 02UP025-092404SO01 02UP026-092404SO01

02 0202UP018-092404SO01 02UP019-092404SO01 02UP020-092404SO01 02UP021-092404SO0102UP009-092404SO01 02UP010-092404SO01 02UP011-092404SO01

02UP015-092104SO01 02UP016-092104SO01 02UP017-092104SO01


TABLE 4-2


Sample Number:IB:



Sample Number:IB:



NA NA NA NANA NA NA NA

0.38 0.2 U 0.17 U 0.480.16 U 0.058 U 0.12 U 0.16 U0.14 U 0.1 U 0.14 U 0.24 UNA NA NA NA

0.48 0.13 U 0.209 0.740.31 0.15 U 0.2 U 0.511.2 U 0.79 U 1.5 U 2.3 U

0.38 J 0.2 U 0.17 U 0.48 JNA NA NA NANA NA NA NA

0.223 0.092 U 0.11 U 0.22NA NA NA NA0.9 U 0.65 U 0.75 U 1.4 U0.9 U 0.65 U 0.75 U 1.4 U

NA 0.64NA NA

0.19 0.40.196 0.440.096 U 0.18 U

NA NA0.252 0.680.17 U 0.561.1 U 1.7 U

0.19 J 0.4 JNA NANA 0.64

0.107 0.26NA NA

0.73 U 1.1 U0.73 U 1.1 U

9/24/2004 9/24/2004

9/24/2004 9/24/2004

0 - 6 0 - 602 02

9/24/2004 9/24/2004

02 020 - 6 0 - 6 0 - 6 0 - 602 02

02UP029-092404SO01 02UP030-092404SO0102UP022-092404SO01 02UP023-092404SO01

02UP027-092404SO01 02UP028-092404SO01


TABLE 4-3

SUMMARY OF DETECTED CONSTITUENTS IN SUBSURFACE SOILNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:

Depth (feet bgs)Sample Date:

Metals UnitAluminum mg/kg 695 83.8 651 32200 407 4620 9880 20700 21600Antimony mg/kg 0.82 U 0.813 U 0.791 U 4.07 0.8 U 0.803 U 0.883 U 0.852 U 0.879 UJArsenic mg/kg 2.35 0.616 U 0.669 J 66.7 0.606 U 1.97 5.79 18.4 12.2Barium mg/kg 31 J 92.9 J 218 71.5 114 27.3 103 H 273 H 164Cadmium mg/kg 0.353 J 0.238 J 0.381 J 1.61 0.349 J 0.255 J 0.202 J 0.0697 U 0.0719 UJChromium mg/kg 8.16 J 0.654 J 4.59 30.4 1.19 L 5.1 L 15 H 42.6 H 26Cobalt mg/kg 0.468 J 0.172 U 0.183 J 0.722 0.17 U 0.17 U 1.47 5.3 14.5Copper mg/kg 4.2 0.575 J 2.38 2.5 2.12 5.15 10.1 25 27.6Lead mg/kg 2250 478 710 75.1 618 762 1590 27.1 56.5Manganese mg/kg 13.4 2.53 21.9 1660 5.31 41.1 41.5 149 800 JMercury mg/kg 0.0943 J 0.174 0.26 0.61 0.0478 J 0.034 J 0.102 J 0.0284 J 0.0281 JNickel mg/kg 2.41 0.53 J 0.443 J 2.17 0.242 U 0.587 J 6 16.6 35.6Selenium mg/kg 0.584 U 0.579 U 0.563 J 13.3 H 0.57 U 0.572 U 1.26 J 0.607 U 1.11 JSilver mg/kg 0.819 0.185 U 0.18 U 0.499 J 0.207 J 0.182 U 0.401 J 0.194 U 0.2 UThallium mg/kg 1.16 J 1.15 U 1.11 U 7.09 1.13 U 1.13 U 1.24 U 2.22 J 1.24 UVanadium mg/kg 23.8 J 0.251 J 8.24 326 1.22 11.8 26 71.2 42.4Zinc mg/kg 16 6.16 14.4 J 16.2 J 9.12 8.07 46.8 84.2 92.5

VOCsAcetone ug/kg NA NA NA NA NA NA NA NA NABenzene ug/kg NA NA NA NA NA NA NA NA NACarbon Disulfide ug/kg NA NA NA NA NA NA NA NA NAChloroform ug/kg NA NA NA NA NA NA NA NA NAEthylbenzene ug/kg NA NA NA NA NA NA NA NA NAIsopropylbenzene ug/kg NA NA NA NA NA NA NA NA NAMethyl Tertiary Butyl Ether ug/kg NA NA NA NA NA NA NA NA NAMethylene Chloride ug/kg NA NA NA NA NA NA NA NA NAToluene ug/kg NA NA NA NA NA NA NA NA NAXylene (Total) ug/kg NA NA NA NA NA NA NA NA NA

SVOCs1,1'-Biphenyl ug/kg NA NA NA NA NA NA NA NA NA2,4,5-Trichlorophenol ug/kg NA NA NA NA NA NA NA NA NA2-Methylnaphthalene ug/kg NA NA NA NA NA NA NA NA NA4-Nitrophenol ug/kg NA NA NA NA NA NA NA NA NAAcenaphthene ug/kg NA NA NA NA NA NA NA NA NAAcenaphthylene ug/kg NA NA NA NA NA NA NA NA NAAnthracene ug/kg NA NA NA NA NA NA NA NA NABenzaldehyde ug/kg NA NA NA NA NA NA NA NA NABenzo(a)anthracene ug/kg NA NA NA NA NA NA NA NA NABenzo(a)pyrene ug/kg NA NA NA NA NA NA NA NA NABenzo(b)fluoranthene ug/kg NA NA NA NA NA NA NA NA NABenzo(g,h,i)perylene ug/kg NA NA NA NA NA NA NA NA NABenzo(k)fluoranthene ug/kg NA NA NA NA NA NA NA NA NAbis(2-Ethylhexyl)phthalate ug/kg NA NA NA NA NA NA NA NA NACarbazole ug/kg NA NA NA NA NA NA NA NA NAChrysene ug/kg NA NA NA NA NA NA NA NA NADibenz(a,h)anthracene ug/kg NA NA NA NA NA NA NA NA NADibenzofuran ug/kg NA NA NA NA NA NA NA NA NADi-n-butylphthalate ug/kg NA NA NA NA NA NA NA NA NAFluoranthene ug/kg NA NA NA NA NA NA NA NA NAFluorene ug/kg NA NA NA NA NA NA NA NA NAIndeno(1,2,3-cd)pyrene ug/kg NA NA NA NA NA NA NA NA NANaphthalene ug/kg NA NA NA NA NA NA NA NA NAN-Nitrosodiphenylamine ug/kg NA NA NA NA NA NA NA NA NAPhenanthrene ug/kg NA NA NA NA NA NA NA NA NAPhenol ug/kg NA NA NA NA NA NA NA NA NAPyrene ug/kg NA NA NA NA NA NA NA NA NAPCB-1248 ug/kg NA NA NA NA NA NA NA NA NAPCB-1254 ug/kg NA NA NA NA NA NA NA NA NAPCB-1260 ug/kg NA NA NA NA NA NA NA NA NA

Wet ChemistryFluoride mg/kg 44.4 L 60.9 L 44.9 L 16.9 L 148 L 66 L 25.2 L 24.4 L 12 JMoisture percent 20.3 19.6 19 18 18.3 18.6 26 23.3 24.9pH pH units 5.4 5.1 7.3 7.4 6.6 8.3 7.2 4.8 7.1Total Cyanide mg/kg 0.22 U 0.22 U 0.66 0.96 0.21 U 1.7 3.8 0.23 J 0.24 UNotes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedL - value is biased low.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.bgs - below ground surface.

9/12/20039/12/2003 9/12/2003 9/9/2003 9/9/20039/6/2003 9/7/2003 9/11/2003 9/11/20039 - 119 - 10.5 16 - 18 9 - 11 11 - 139 - 11 9 - 11 9 - 11 16 - 18

0202 02 02 0202 02 02 0202UP007-091203SO0502UP004-091203SO05 02UP004-091203SO06 02UP005-090903SO05 02UP005-090903SO0602UP001-090603SO05 02UP002-090703SO05 02UP003-091103SO05 02UP003-091103SO06


TABLE 4-3


Sample No:IB:





Wet ChemistryFluoride mg/kgMoisture percentpH pH unitsTotal Cyanide mg/kgNotes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedL - value is biased low.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.bgs - below ground surface.

7660 7820 87900 64400 J 55400 J 55300 65100 J 78800 962000.828 U 0.837 U 1.13 UJ 4.34 L 2.38 L 2.7 L 2.96 L 1.05 UJ 0.988 UJ

6.71 2.65 23.2 52.2 L 43.4 L 26 L 40.6 L 32.8 30.9216 H 59.8 H 176 95.9 J 99.3 J 74 111 J 162 181

0.0678 U 0.0685 U 0.0923 UJ 0.35 J 0.575 J 0.513 J 0.498 J 0.0855 UJ 0.0809 UJ16.4 H 10.4 H 428 J 251 J 179 J 118 J 303 J 665 4892.75 3.09 1.7 0.608 J 0.619 J 0.756 0.868 1.92 1.8912.3 33.4 5.1 4.6 3.59 5.05 3.87 9.56 8.97

65 5.21 102 70.2 J 61.2 J 44.4 72 J 105 115103 55.7 362 J 531 J 473 J 802 478 J 413 389

0.0242 J 0.0183 J 0.415 0.289 0.31 0.208 0.515 0.685 H 0.757 H8.19 11.2 5.23 3.37 3.5 3.8 3.88 7.48 6.960.59 U 0.596 U 0.822 J 5.42 J 2.2 0.754 J 4.38 2.93 1.32 J

0.188 U 0.19 U 3.06 0.202 U 0.2 U 0.21 U 0.205 U 2.64 3.051.84 J 1.18 U 1.59 U 6.26 U 1.24 U 4.7 J 1.27 U 5.33 3.8922.9 20 423 708 J 508 J 295 615 J 619 49537.6 56.7 17.8 18.3 J 13.3 J 20 14 J 19.8 28.1

9 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA3 J NA NA NA NA NA NA NA NA3 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA

43 U NA NA NA NA NA NA NA NA43 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA210 U NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA43 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA85 U NA NA NA NA NA NA NA NA43 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA45 J NA NA NA NA NA NA NA NA85 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA43 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA43 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA5 U NA NA NA NA NA NA NA NA

7.6 U NA NA NA NA NA NA NA NA6.9 U NA NA NA NA NA NA NA NA

48.1 L 20.5 L 14.9 L 44.6 J 81 L 17.6 J 56.5 L 83.2 J 58.9 J21.9 21.9 41.5 26.5 28.5 30 29 39.3 36.4

5.5 7.6 11.5 11.5 11.3 11 11.5 11.8 11.80.22 U 0.23 U 0.29 U 0.49 U 0.5 U 0.25 U 0.51 U 0.93 0.27 U

9/5/2003 9/5/20039/6/2003 9/6/2003 9/7/2003 9/6/20039/9/2003 9/9/2003 9/5/20032 - 10 4 - 62 - 10 2 - 10 2 - 10 2 - 109 - 11 16 - 18 2 - 10

1a 1a1a 1a 1a 1a02 02 1a1aUP006-090503SO02 1aUP007-090503SO021aUP002-090603SO02 1aUP003-090603SO02 1aUP004-090703SO02 1aUP005-090603SO0202UP008-090903SO05 02UP008-090903SO06 1aUP001-090503SO02


TABLE 4-3


Sample No:IB:






87000 66100 J 68500 J 85400 81000 74900 79500 85200 64700 J1.05 UJ 1.51 J 2.81 J 1.04 UJ 1.03 UJ 1.06 U 2.69 L 1.09 UJ 1.86 L27.5 34.6 L 36 L 40.3 27.3 14.6 24.1 L 30.4 17.6 L169 112 J 153 J 223 197 106 J 138 180 115 J

0.0857 UJ 0.493 J 0.612 J 0.0854 UJ 0.0844 UJ 0.169 J 0.609 J 0.0894 UJ 0.888377 263 J 261 J 553 416 462 J 398 J 554 J 242 J

2.02 0.763 1.04 2.47 1.94 1.21 0.397 J 1.75 110.2 5.73 6 9.32 7.8 3.82 6.14 5.54 7105 81.7 J 86.4 J 117 113 77 97.8 118 56.7 J385 341 J 360 J 425 449 390 388 352 J 356 J

0.642 H 0.69 J 0.295 J 0.625 H 0.385 H 0.386 0.401 0.594 0.287.93 4.63 4.56 6.59 5.52 6.27 5.04 4.95 5.14

1.1 J 1.47 J 2.56 J 3.88 0.894 J 3.79 U 0.767 U 2.76 1.26 J2.96 0.218 U 0.213 U 3.36 3.25 2.64 0.245 U 2.78 0.232 U2.66 J 1.35 U 1.32 U 4.79 3.57 3.57 3.27 J 1.54 U 1.44 U453 458 J 464 J 667 438 421 J 375 576 333 J

33.7 12.4 J 15.7 J 15.9 20.2 21.8 14.8 16.8 16.3 J

25 J NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA9 NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA2 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA

48.9 J 85.1 L 80.6 L 44.3 J 73.5 J 41.7 L 57.6 J 24.7 L 56.6 J38.2 31.3 30.4 39.2 37.9 40.4 40.5 40.8 37.111.8 11.6 11.5 12.2 11.6 10.5 12 12.1 10.80.28 U 0.52 U 0.52 U 0.29 U 0.28 U 0.3 U 0.29 U 1.1 1.3 J

9/7/2003 9/5/2003 9/8/20039/6/2003 9/5/2003 9/5/2003 9/7/20039/5/2003 9/6/20032 - 10 2 - 10 2 - 102 - 10 2 - 10 10-Feb 6 - 102 - 10 2 - 10

1a 1a 1a1a 1a 1a 1a1a 1a1aUP013-090703SO02 1aUP014-090503SO02 1aUP015-090803SO021aUP008-090603SO02FD 1aUP009-090503SO02 1aUP010-090503SO02 1aUP012-090703SO021aUP007-090503SO02FD 1aUP008-090603SO02


TABLE 4-3


Sample No:IB:






1230 J 59100 J 33300 39600 69200 J 69300 44200 70100 635000.767 UJ 1.87 L 2.82 L 2.6 L 2.96 L 1.04 U 5.25 L 0.83 UJ 1.31 J0.581 UJ 25.6 L 15.1 L 16.7 L 25.4 19.4 27.8 10.1 35.3

30.6 J 109 J 32.7 47.8 127 136 J 24.6 156 84.30.426 J 1.7 0.253 J 0.407 J 0.81 0.132 J 9.35 0.0679 U 1.13

2.9 J 39.4 J 285 J 224 J 612 J 454 J 335 H 95.9 H 71.60.163 U 2.04 0.191 U 0.187 U 0.436 J 1.72 J 1.91 2.49 1.56

1.11 J 39.2 3.34 3.89 7.71 J 4.31 J 9.07 H 80.7 H 6.071280 J 309 J 32.5 37.6 92.2 J 78.7 42.6 55.9 52.719.2 J 375 J 381 454 392 J 418 187 205 2380

0.0034 U 0.213 0.16 0.216 0.526 H 0.563 0.189 L 0.0566 L 0.3010.716 J 12.7 2.83 3.09 5.97 6.16 20.4 26.8 2.580.546 U 0.96 J 1.9 0.642 J 0.733 U 3.7 U 0.554 U 2.15 0.565 U0.174 U 0.182 U 0.204 U 0.201 U 0.234 U 3.12 0.932 0.272 J 1.95

1.08 U 1.13 U 4.84 J 3.21 J 2.82 J 5.52 J 1.1 U 1.17 U 4.724.67 J 153 J 522 385 566 J 435 J 1120 H 230 H 343 H17.2 J 88.7 J 4.93 9.26 11.2 14.7 22.9 J 27.6 J 27.4

NA NA 10 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 9 NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NANA NA 1 U NA NA NA NA NA NA

NA NA 45 U NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 230 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 91 U NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA 91 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 45 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA 5.3 U NA NA NA NA NA NANA NA 8 U NA NA NA NA NA NANA NA 7.4 U NA NA NA NA NA NA

50.1 J 48.6 J 13.8 J 14.5 J 36.6 L 49.3 L 13.4 J 231 J 54.4 J17.3 18.4 26.6 26 37.1 37.2 17.6 21.3 16.8

7.6 7.9 10.9 10.9 12 11.9 10.7 9.1 10.40.44 U 9.8 0.41 J 0.49 J 0.63 J 0.35 J 0.22 U 41.9 1.2

9/7/2003 9/11/2003 9/11/2003 9/10/20039/8/2003 9/7/2003 9/7/2003 9/7/20039/8/20032 - 10 2 - 10 2 - 10 2 - 106 - 7 2 - 10 2 - 8 2 - 102 - 10

1a 1b 1b 1b1a 1a 1a 1a1a1aUP020-090703SO02FD 1bUP001-091103SO02 1bUP002-091103SO02 1bUP003-091003SO021aUP017-090803SO02 1aUP018-090703SO02 1aUP019-090703SO02 1aUP020-090703SO021aUP016-090803SO02


TABLE 4-3


Sample No:IB:






48400 71200 78700 82000 72400 38900 34700 69600 798004.69 L 1.41 L 2.08 L 1.26 L 0.977 U 5.65 J 6.48 J 0.932 U 1.59 L170 79.4 34.3 39.4 45 34.8 34.9 43.4 25.5

60.6 105 199 198 131 21.5 J 37.5 J 126 1639.52 0.0663 U 0.0898 U 0.0874 U 0.243 J 0.319 U 0.327 U 0.0918 J 0.093 U155 H 99.5 H 105 H 106 H 177 387 389 265 383 H

3.72 2.17 2.44 2.46 2.07 2.13 J 1.99 J 2.36 2.611.1 H 9.53 H 10.8 H 9.89 H 7.81 12.8 11.8 8.41 12.1 H60.1 102 91.6 98.7 70.7 54.6 42 76.6 89.7

1480 1040 439 483 901 146 155 1040 3530.405 L 0.353 L 0.284 L 0.279 L 0.3 0.249 0.244 0.401 0.309 L

5.98 4.39 4.11 4 3.53 3.93 J 5.85 J 4.66 4.970.525 U 1.07 J 1.59 J 1.89 2.05 2.78 U 2.85 U 0.664 U 0.983 J

1.37 2.06 J 3.68 3.81 3.14 0.886 U 0.909 U 3.03 4.11.23 J 1.14 U 1.55 U 1.5 U 1.94 J 5.49 U 5.64 U 3.03 1.6 U564 H 454 H 226 H 246 H 382 H 1190 H 1160 H 439 H 375 H

14.6 J 35.9 J 19.8 J 24.1 J 25.2 13.4 11.7 J 34.8 23.9 J

NA NA NA NA 11 U NA NA 10 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 3 U NA NA 3 U NANA NA NA NA 2 U NA NA 1 U NANA NA NA NA 2 U NA NA 1 U NA

NA NA NA NA 50 U NA NA 48 U NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA NA NA NA NA NANA NA NA NA 250 U NA NA 240 U NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA 100 U NA NA 95 U NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA 100 U NA NA 95 U NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA NA NA NA NA NANA NA NA NA 50 U NA NA 48 U NANA NA NA NA NA NA NA NA NANA NA NA NA 5.8 U NA NA 5.6 U NANA NA NA NA 8.8 U NA NA 8.4 U NANA NA NA NA 8.1 U NA NA 7.7 U NA

74.6 J 54.9 J 45.8 J 51.8 J 72.3 J 13.3 J 10.3 J 88.4 J 61.8 J14 19.4 41.6 40 33.1 17.8 19.1 29.9 43.6

8.9 10.8 11.9 11.9 11.6 10.7 10.7 11.6 11.81.7 1.4 0.3 U 0.3 U 0.26 U 0.22 U 0.22 U 0.25 U 0.3 U

9/11/20039/10/2003 9/10/2003 9/10/2003 9/10/20039/11/2003 9/11/2003 9/11/2003 9/11/20032 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 10

1b1b 1b 1b 1b1b 1b 1b 1b1bUP010-091103SO021bUP007-091003SO02 1bUP008-091003SO02 1bUP008-091003SO02FD 1bUP009-091003SO021bUP004-091103SO02 1bUP005-091103SO02 1bUP006-091103SO02 1bUP006-091103SO02FD


TABLE 4-3


Sample No:IB:






65600 66600 59100 J 65400 80900 82800 49100 49500 925000.92 UJ 1.02 UJ 1.37 L 1.03 UJ 2.21 J 1.06 U 4.96 5.32 1.04 U30.8 49.1 26.3 L 19 12.1 15.2 28.3 32.6 10.799.7 150 68.1 J 52.7 186 119 J 134 J 46.6 J 229 J3.04 J 0.135 J 0.168 J 4.46 J 0.0778 U 0.253 J 2.73 2.25 0.342 J451 63.8 453 J 710 107 508 J 293 H 278 H 135 J

1.71 2.21 0.301 J 1.65 2.53 1.57 2.78 3.06 1.3114.3 8.97 7.13 16.9 243 21.2 8.63 8.29 58.177.6 92.1 61.5 J 67.8 46.5 83.5 102 142 44.2445 479 269 J 216 263 279 410 646 194

0.447 0.385 0.25 0.313 0.0505 J 0.134 J 0.297 0.215 0.0261 J4.76 3.51 4.54 7.67 24.6 8.14 3.05 3.5 14.71.37 J 1.36 J 3.8 2.42 2.14 H 3.76 U 0.547 U 0.573 U 0.741 U2.17 4.05 0.392 J 1.21 0.257 J 3.49 0.175 U 0.183 U 0.7984.01 2.65 J 6.78 U 4.69 1.34 U 6.09 12.2 12 1.47 U606 294 625 J 859 145 394 J 852 891 123 J

22.6 22.3 10.8 J 52.9 42.3 J 23.3 10.8 15.6 32.2

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA

61.4 L 21.7 L 33.6 J 26.1 L 199 L 265 L 6.5 L 4.4 L 624 L29.7 J 35 J 34.1 37.5 J 31.3 37.5 17.4 18.8 37.811.7 12 11.8 11 10.8 10.1 9.1 8.8 8.60.26 U 0.27 U 0.55 U 0.28 U 143 88 0.21 U 0.22 U 112

9/9/2003 9/9/20039/9/2003 9/10/2003 9/7/2003 9/9/20039/9/2003 9/9/2003 9/8/20032 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10

1c 1c1b 1c 1c 1c1b 1b 1b1cUP003-090903SO02FD 1cUP004-090903SO021bUP014-090903SO02 1cUP001-091003SO02 1cUP002-090703SO02 1cUP003-090903SO021bUP011-090903SO02 1bUP012-090903SO02 1bUP013-090803SO02


TABLE 4-3


Sample No:IB:






53800 57900 58800 33300 77600 73400 74600 34100 8170031.4 5.65 5.49 4.01 UJ 0.997 U 2.57 J 1.08 U 6.41 J 2.88 J166 20 19.4 29.8 24.6 14 20.6 33.3 20.3274 67.8 73.2 29.7 215 196 87.6 J 36.3 169

3.54 1.66 1.78 6.02 J 0.299 J 0.0825 U 0.0887 U 0.344 U 0.585 J388 908 886 392 193 157 519 J 399 358

48.2 0.568 J 0.674 J 1.54 J 1.71 1.49 1.66 1.69 J 1.4542.8 12.7 14 10.5 87.5 64.7 5.55 10 42.2

99 85.6 87.1 137 45.9 50.5 74 44.6 77.6216 261 266 219 214 263 293 171 330

0.305 0.207 0.187 0.302 0.119 J 0.101 J 0.186 0.245 0.17952.1 8.11 8.26 3.85 J 19.1 18.7 6.35 6.67 12.5181 9.82 H 10.2 H 4.36 J 0.838 J 3.32 H 3.86 U 5.11 J 3.77 H

7.52 0.927 0.805 2.11 J 0.631 J 0.229 U 3.02 0.954 U 0.319 J195 1.61 J 2.86 J 5.65 U 1.4 U 2.11 J 1.53 U 5.92 U 3.56393 705 694 1020 269 H 174 448 J 1130 H 327

65.8 0.439 J 3.91 J 12.5 31.4 27.9 J 9.71 9.66 J 20.2 J

NA 11 U 11 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 3 U 3 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NANA 2 U 2 U NA NA NA NA NA NA

NA 53 U 53 U NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 270 U 270 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 1000 UJ 120 UJ NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA 110 U 110 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 53 U 53 U NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA 6.2 U 6.2 U NA NA NA NA NA NANA 9.5 U 9.4 U NA NA NA NA NA NANA 8.7 U 8.6 U NA NA NA NA NA NA

275 49.1 UJ 59.7 L 5.7 L 164 J 392 L 75.9 L 5.3 J 226 LNA 37.6 37.5 20.9 J 35.7 35.2 40.3 21.4 43.4NA 9.9 10 9.4 10.3 8.7 11.3 10.1 11

10.2 0.41 J 0.5 J 0.22 U 92.5 130 0.29 U 0.22 U 66.7

9/7/2003 9/11/2003 9/10/20039/10/2003 9/9/2003 9/11/2003 9/10/20039/7/2003 9/10/20032 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10

1c 1c 1c1c 1c 1c 1c1c 1c1cUP010-090703SO02 1cUP011-091103SO02 1cUP012-091003SO021cUP006-091003SO02FD 1cUP007-090903SO02 1cUP008-091103SO02 1cUP009-091003SO021cUP005-090703SO02 1cUP006-091003SO02


TABLE 4-3


Sample No:IB:






55100 46400 84400 78900 43800 J 79300 73000 58800 J 599004.49 5.93 1.13 U 1.13 U 5.88 L 1.3 J 1.12 U 1.03 UJ 5.2 UJ20.2 26.4 19.7 19.7 38.6 L 23.5 25.3 18.2 23.3

66 34.3 H 126 112 J 34.8 J 127 115 J 57.8 60.21.29 2.76 0.0926 U 0.154 J 0.0639 U 0.191 J 0.0914 U 0.156 J 4.74 J698 322 H 583 473 J 236 J 228 254 J 932 947

0.935 2.97 1.92 1.7 0.166 U 1.77 1.55 1.91 1.71 J8.95 10.7 15.9 14.1 11.1 40.7 7.56 12.8 11.475.2 51.6 92.7 85.8 106 J 88.4 85.3 92.1 91.6356 357 324 303 748 J 453 360 227 250

0.203 0.477 0.197 0.205 0.441 0.224 0.204 0.235 0.2427.52 3.58 5.86 5.54 4.3 5.11 4.43 6.74 6.83 J7.88 H 0.552 U 0.806 U 4.02 U 14.2 0.774 U 3.98 U 3.67 U 3.7 U

0.729 0.176 U 3.39 4.24 0.533 J 3.59 4.31 1.66 2.68 J7.64 16.2 2.21 J 5.43 5.5 U 2 J 3.8 4.68 7.33 U613 1000 522 H 395 J 828 J 230 H 312 J 906 974

5.39 J 0.211 U 19.4 14 23.8 J 19.7 20.4 14 J 4.98 J

NA NA NA NA NA NA NA 11 U 11 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 3 U 3 UNA NA NA NA NA NA NA 2 U 2 UNA NA NA NA NA NA NA 2 U 2 U

NA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 270 U 270 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 110 U 110 UNA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA 110 U 110 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 53 U 53 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA 6.2 U 31 UNA NA NA NA NA NA NA 9.4 U 47 UNA NA NA NA NA NA NA 8.6 U 43 U

73.7 L 2.8 L 110 J 62.5 L 7.5 J 79 J 74.9 L 10 J 9.6 J31.5 17.3 42.8 43.3 17.9 39.9 41.5 37.2 J 37.2 J10.3 9.6 12 11 8.4 11.4 11.8 8.3 8.20.25 U 0.21 U 1.1 0.32 U 0.44 U 0.3 U 0.3 U 0.28 U 0.28 U

9/11/2003 9/7/2003 9/8/2003 9/8/20039/9/2003 9/11/2003 9/7/2003 9/8/20039/10/20032 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10

1c 1c 1c 1c1c 1c 1c 1c1c1cUP018-091103SO02 1cUP019-090703SO02 1cUP020-090803SO02 1cUP020-090803SO02FD1cUP014-090903SO02 1cUP015-091103SO02 1cUP016-090703SO02 1cUP017-090803SO021cUP013-091003SO02


TABLE 4-3


Sample No.IB:


Metals UnitsAluminum mg/kg 75700 83600 9960 13500 86000 30200 14300 7240 11400Antimony mg/kg 0.986 U 1.03 UJ 0.748 UJ 0.805 U 1.19 J 0.8 U 0.792 UJ 0.733 U 0.78 UArsenic mg/kg 23.5 16.4 6.86 9.24 15.6 9.74 9.17 9.43 7.46Barium mg/kg 183 160 192 217 162 206 230 158 J 274Cadmium mg/kg 1.18 1.25 0.372 J 0.623 0.17 J 0.0654 U 3.93 0.14 J 0.0638 UChromium mg/kg 213 J 412 14.8 23.2 L 41.7 67.2 L 19.5 11.8 H 16.1 LCobalt mg/kg 3.02 2.1 6.2 7 2.57 5.71 7.9 6.79 7.19Copper mg/kg 9.27 H 11 9.82 36.1 11.5 H 11.1 14.9 9.73 13.4Lead mg/kg 60.2 J 81.8 J 9.46 J 24.1 75.6 24.3 11.2 J 8.41 9.32Manganese mg/kg 525 259 316 385 567 372 428 308 387Mercury mg/kg 0.215 J 0.226 H 0.0246 H 0.0594 J 0.449 J 0.0743 J 0.0248 H 0.0188 J 0.0271 JNickel mg/kg 8.38 7.98 17.1 23.4 4.63 15 22.3 16.8 19.4Selenium mg/kg 0.702 U 0.732 U 0.533 U 0.573 U 0.69 U 0.57 U 0.564 U 0.522 U 0.556 USilver mg/kg 2.36 1.89 0.17 U 0.183 U 0.22 U 0.182 U 0.18 U 0.185 J 0.177 UThallium mg/kg 3.01 4.74 1.3 J 1.13 U 1.79 J 1.13 U 2.05 J 1.29 J 1.92 JVanadium mg/kg 279 H 281 29.1 47.2 138 83.1 39 22.8 31.7Zinc mg/kg 35.3 J 39.9 J 43.1 J 104 54.4 53.5 170 J 41.5 49.7

VOCsAcetone ug/kg NA 11 U NA NA NA NA NA 8 U 8 UBenzene ug/kg NA 2 U NA NA NA NA NA 1 U 1 UCarbon Disulfide ug/kg NA 2 U NA NA NA NA NA 1 U 1 UChloroform ug/kg NA 2 U NA NA NA NA NA 1 U 1 UEthylbenzene ug/kg NA 2 U NA NA NA NA NA 1 U 1 UIsopropylbenzene ug/kg NA 2 U NA NA NA NA NA 1 U 1 UMethyl Tertiary Butyl Ether ug/kg NA 2 U NA NA NA NA NA 1 U 1 UMethylene Chloride ug/kg NA 5 J NA NA NA NA NA 2 U 2 UToluene ug/kg NA 2 U NA NA NA NA NA 1 U 1 UXylene (Total) ug/kg NA 2 U NA NA NA NA NA 1 U 1 U

SVOCs1,1'-Biphenyl ug/kg NA 52 U NA NA NA NA NA 38 U 39 U2,4,5-Trichlorophenol ug/kg NA 52 U NA NA NA NA NA 38 U 39 U2-Methylnaphthalene ug/kg 120 J 140 J 92 U 980 U 120 U 98 U 99 U 91 U 95 U4-Nitrophenol ug/kg NA 260 U NA NA NA NA NA 190 U 200 UAcenaphthene ug/kg 86 J 130 J 46 U 1000 J 120 J 62 J 49 U 45 U 47 UAcenaphthylene ug/kg 62 U 62 U 46 U 490 U 59 U 49 U 49 U 45 U 47 UAnthracene ug/kg 5 J 4.7 J 0.69 U 170 15 11 0.74 U 0.68 U 0.71 UBenzaldehyde ug/kg NA 52 U NA NA NA NA NA 38 U 39 UBenzo(a)anthracene ug/kg 16 13 1.5 U 650 J 63 J 24 1.6 U 1.5 U 1.6 UBenzo(a)pyrene ug/kg 19 J 20 J 2.3 U 840 J 79 J 85 2.5 U 2.3 U 2.4 UBenzo(b)fluoranthene ug/kg 23 25 3.1 U 710 J 73 J 81 3.3 U 3 U 3.2 UBenzo(g,h,i)perylene ug/kg 36 45 3.1 U 1400 140 110 3.3 U 3 U 3.2 UBenzo(k)fluoranthene ug/kg 8.8 J 11 1.5 U 410 36 34 1.6 U 1.5 U 1.6 Ubis(2-Ethylhexyl)phthalate ug/kg NA 100 U NA NA NA NA NA 76 U 79 UCarbazole ug/kg NA 52 U NA NA NA NA NA 38 U 39 UChrysene ug/kg 33 34 2.3 U 620 79 35 2.5 U 2.3 U 2.4 UDibenz(a,h)anthracene ug/kg 6.8 J 2.1 U 1.5 U 94 J 8.9 12 1.6 U 1.5 U 1.6 UDibenzofuran ug/kg NA 52 U NA NA NA NA NA 38 U 39 UDi-n-butylphthalate ug/kg NA 100 U NA NA NA NA NA 76 U 79 UFluoranthene ug/kg 49 34 1.5 U 1700 140 74 1.6 U 1.5 U 1.6 UFluorene ug/kg 8 J 9.7 J 4.6 U 73 J 7.8 J 4.9 U 4.9 U 4.5 U 4.7 UIndeno(1,2,3-cd)pyrene ug/kg 17 J 17 J 3.1 U 840 J 77 74 3.3 U 3 U 3.2 UNaphthalene ug/kg 72 U 73 U 54 U 570 U 69 U 57 U 58 U 53 U 55 UN-Nitrosodiphenylamine ug/kg NA 52 U NA NA NA NA NA 38 U 39 UPhenanthrene ug/kg 35 J 52 2 J 970 J 77 J 86 1.6 U 1.5 U 1.6 UPhenol ug/kg NA 52 U NA NA NA NA NA 38 U 39 UPyrene ug/kg 62 39 J 3.9 U 1500 160 99 4.1 U 3.8 U 3.9 UPCB-1248 ug/kg NA 6.1 U NA NA NA NA NA 4.4 U 4.6 UPCB-1254 ug/kg NA 9.2 U NA NA NA NA NA 6.7 U 7 UPCB-1260 ug/kg NA 8.4 U NA NA NA NA NA 6.1 U 6.4 U

Wet ChemistryFluoride mg/kg 67.3 L 88.8 L 3.4 L 29 L 25.6 J 32.7 L 39.2 L 9.9 J 4.1 LMoisture percent 35 35.8 13.5 18 32.6 18.3 19.1 11.7 15.4pH pH units 11.3 10.9 7.5 8.7 12.3 8.3 7.6 7.6 7.6Total Cyanide mg/kg 0.28 U 0.27 U 0.2 U 0.28 J 0.26 U 0.22 U 0.22 U 0.2 U 0.21 UNotes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.H - value is biased high.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedL - value is biased low.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.bgs - below ground surface.

9/3/2003 9/4/2003 9/4/2003 9/12/2003 9/4/2003 9/12/2003 9/4/2003 9/12/2003 9/12/20032 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 10

3a 3a 3a 3a 3a 3a 3a 3a 3a3aUP008-091203SO02FD3aUP005-090403SO02 3aUP006-091203SO02 3aUP007-090403SO02 3aUP008-091203SO023aUP001-090303SO02 3aUP002-090403SO02 3aUP003-090403SO02 3aUP004-091203SO02


TABLE 4-3


Sample No.IB:






9020 14100 31200 J 32000 J 11600 J 46000 J 37100 J 52900 681000.785 U 0.817 UJ 2.26 L 1.32 L 1.01 L 1.01 L 1.02 UJ 0.929 UJ 0.94 U

7.36 7.56 13.4 6.85 7.91 5.28 10 11.7 12191 256 238 82.2 136 98.1 56.2 96.3 86.6

0.0642 U 0.531 J 1.47 1.35 2.15 0.84 0.515 J 0.076 UJ 0.177 J13.5 L 21.4 26.5 J 28.3 J 57.2 J 31.2 J 31.2 J 45.5 J 68.66.82 7.71 4.76 5.11 2.73 6.68 0.422 J 0.598 J 2.1511.4 18.4 22.7 23.3 71.5 23.6 3.77 2.67 10.6 H8.32 21.3 J 155 J 561 J 260 J 15 J 28.7 J 41.9 37.3340 412 122 J 166 J 2050 J 106 J 155 J 124 J 433

0.0268 J 0.0338 H 0.182 H 0.165 H 0.172 H 0.0262 H 0.0232 H 0.0635 J 0.157 J18.4 23.5 20.2 26.8 21.5 31.7 3.82 3.26 6.87

0.559 U 0.582 U 2.56 2.1 0.783 J 1.39 J 0.724 U 0.661 U 1.31 J0.178 U 0.186 U 0.186 U 0.328 J 0.17 U 0.216 U 0.231 U 1.3 J 0.214 U

1.11 U 1.31 J 1.15 U 2.43 J 2.11 J 2.6 J 1.56 J 1.31 U 1.32 U26.2 38.3 47.9 J 36.6 J 32 J 37 J 93.5 J 98.5 16042.7 62.7 J 178 160 203 118 18.3 18.1 63.6


NA NA NA NA NA NA NA NA 48 UNA NA NA NA NA NA NA NA 48 U95 U 1900 J 3000 UJ 4500 J 2000 UJ 3000 J 630 J 180 J 120 U

NA NA NA NA NA NA NA NA 240 U48 U 4100 2000 2900 1100 J 1900 J 390 J 390 420 U48 U 280 J 1200 J 1900 340 J 1200 J 310 U 70 J 58 U

0.71 U 700 59 170 37 110 33 J 180 3.7 JNA NA NA NA NA NA NA NA 48 U1.6 U 690 J 120 370 160 100 250 260 12 J2.4 U 260 J 140 810 160 150 310 270 17 J3.2 U 280 J 120 940 190 120 300 210 19 J3.2 U 120 190 860 320 260 800 360 401.6 U 170 H 63 460 99 63 150 120 9 JNA NA NA NA NA NA NA NA 96 UNA NA NA NA NA NA NA NA 48 U2.4 U 670 190 630 200 230 330 260 221.6 U 41 J 99 U 250 U 31 160 U 54 17 3.3 JNA NA NA NA NA NA NA NA 48 UNA NA NA NA NA NA NA NA 96 U1.6 U 4000 280 660 400 300 540 740 234.8 U 2100 110 J 250 47 J 150 J 31 U 64 6.7 J3.2 U 110 J 130 560 110 130 250 240 2055 U 2900 300 U 320 U 270 U 350 U 360 U 68 U 67 U

NA NA NA NA NA NA NA NA 48 U1.6 U 7400 J 730 1200 370 900 430 670 19 JNA NA NA NA NA NA NA NA 48 U

4 U 3100 350 810 380 400 570 640 28 JNA NA NA NA NA NA NA NA 5.6 UNA NA NA NA NA NA NA NA 8.5 UNA NA NA NA NA NA NA NA 7.8 U

1.8 L 9.8 L 29.8 L 36.6 L 12.1 L 13.6 L 15.9 L 14.9 L 44.4 J15.9 20 23 28.2 13.6 32.7 35.1 31 30.5

7.2 9.2 10.4 9.1 7.3 12 10.4 12.4 8.60.21 U 0.22 U 0.23 U 0.24 U 0.2 U 0.26 U 0.27 U 0.25 U 0.25 U

9/4/20039/5/2003 9/5/2003 9/5/2003 9/5/20039/12/2003 9/4/2003 9/5/2003 9/5/20032 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10

3b3b 3b 3b 3b3a 3a 3b 3b3bUP006-090503SO02 3bUP007-090403SO023bUP002-090503SO02 3bUP003-090503SO02 3bUP004-090503SO02 3bUP005-090503SO023aUP009-091203SO02 3aUP010-090403SO02 3bUP001-090503SO02


TABLE 4-3


Sample No.IB:






98400 66200 85600 95500 13300 13400 53500 7830 189001.01 UJ 0.936 UJ 1.47 J 1.09 J 0.75 UJ 0.831 UJ 3.2 0.78 UJ 0.847 UJ

36 10.5 41.7 46.8 7.99 7.23 20.2 7.06 9.08129 92 200 234 233 204 155 200 219

0.0827 UJ 0.0766 UJ 3.72 5.3 0.614 0.068 U 0.0814 U 0.377 J 0.82387.4 J 43.3 J 371 294 18.2 17.3 170 13.7 25.91.68 0.58 J 5.02 5.33 7.49 7.07 3.01 5.82 13.44.15 2.63 137 J 76.1 J 12.2 12.4 16.2 9.28 19.3

70 22 456 J 214 J 40.6 J 9.14 205 7.76 J 15.7 J281 J 174 J 513 472 472 337 273 284 789

0.174 0.177 0.811 J 0.935 J 0.0263 H 0.0239 J 0.46 0.0149 H 0.037 H4.86 2.33 19.7 18.3 22.3 17.5 13.3 16.3 31.4

2.7 1.31 J 1.78 2.37 0.534 U 0.79 J 4.76 H 0.556 U 0.603 U3.61 1.44 0.232 U 0.239 U 0.171 U 0.189 U 0.229 J 0.177 U 0.192 U1.42 U 1.32 U 1.44 U 1.48 U 1.32 J 1.17 U 1.95 J 1.21 J 1.74 J288 126 313 327 36.3 32.5 244 32.5 49.4

39.2 12.5 230 330 92.1 J 50.8 166 J 38.6 J 70.7 J

NA NA 12 J 11 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 3 U 3 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NANA NA 2 U 2 U NA NA NA NA NA

NA NA 53 U NA NA NA NA NA NANA NA 53 J NA NA NA NA NA NA120 U 110 U 630 U 340 J 92 U 100 U 1200 UJ 95 U 100 UNA NA 260 U NA NA NA NA NA NA81 J 79 J 320 U 280 J 46 U 50 U 820 J 47 U 52 U61 U 57 U 320 U 180 J 46 U 50 U 610 U 47 U 52 U

6 J 0.86 U 36 J 33 0.69 U 0.76 U 31 J 0.71 U 0.79 UNA NA 53 U NA NA NA NA NA NA18 3.7 J 140 J 140 J 1.5 U 1.7 U 82 J 1.6 U 1.7 U14 J 2.9 U 150 J 200 J 2.3 U 2.5 U 96 J 2.4 U 2.6 U16 J 4.5 J 170 J 200 J 3.1 U 3.4 U 83 J 3.2 U 3.5 U26 4.2 J 270 380 3.1 U 3.4 U 160 J 4.5 J 5.9 J

8.5 J 2.1 J 83 87 1.5 U 1.7 U 34 J 1.6 U 1.7 UNA NA 110 U NA NA NA NA NA NANA NA 53 U NA NA NA NA NA NA25 7.1 J 170 200 2.3 U 2.5 U 120 J 2.4 U 2.6 U

2 U 1.9 U 21 J 44 J 1.5 U 1.7 U 20 UJ 1.6 U 1.7 UNA NA 53 U NA NA NA NA NA NANA NA 110 U NA NA NA NA NA NA52 6.5 J 350 370 1.5 U 1.7 U 220 1.7 J 3.3 J

6.4 J 5.7 U 32 U 26 J 4.6 U 5 U 62 J 4.7 U 5.2 U14 J 3.8 U 130 140 3.1 U 3.4 U 41 UJ 5.9 J 3.5 U71 U 120 J 370 U 74 U 54 U 59 U 710 U 55 U 61 U

NA NA 53 U NA NA NA NA NA NA70 14 J 230 J 240 J 1.5 U 1.7 U 310 J 2.5 J 2.2 J

NA NA 53 U NA NA NA NA NA NA45 9.7 J 410 440 3.8 U 4.2 U 330 J 3.9 U 4.6 J

NA NA 370 J NA NA NA NA NA NANA NA 47 U NA NA NA NA NA NANA NA 150 J NA NA NA NA NA NA

8.1 L 1.5 L 96.9 J 186 J 23.1 L 36.9 J 52.8 L 21.5 L 60.3 L34.7 30.2 36.7 37.3 12.9 20.6 34.3 15.4 23.6

12 12.1 8.8 8.6 6.5 7.5 10 9.1 8.50.27 U 12.7 12.3 8.4 0.2 U 0.22 U 0.26 U 0.21 U 0.52 J

9/4/2003 9/4/20039/4/2003 9/4/2003 9/12/2003 9/11/20039/5/2003 9/5/2003 9/4/20032 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10

3b 3b3b 3b 3b 3b3b 3b 3b3bUP013-091103SO02 3bUP014-090403SO02 3bUP015-090403SO023bUP010-090403SO02 3bUP010-090403SO02FD 3bUP011-090403SO02 3bUP012-091203SO023bUP008-090503SO02 3bUP009-090503SO02


TABLE 4-3


Sample No.IB:






69000 5750 76500 63700 50000 98000 27400 39700 173000.946 UJ 0.756 U 1.59 J 0.919 U 0.846 U 1.4 U 0.887 U 3.41 0.795 U

12.2 4.74 7.66 17.3 15.9 73.5 9.34 20 8.48150 113 133 184 227 226 216 243 211

0.858 0.264 J 0.0827 U 1.26 1.75 5.58 0.811 3.01 0.718362 10.2 J 445 36.9 J 46.8 J 135 J 34.3 J 32.6 J 59.6 J

2.86 3.1 2.25 4.12 5.42 5.88 7.37 5.35 6.318.34 7.02 H 5.77 7.86 H 24.4 H 153 H 18.7 H 190 H 11.7 H54.5 J 20.1 J 60.1 42.3 J 164 J 508 J 28.7 J 403 J 16.3 J284 102 191 786 557 504 239 597 372

0.226 H 0.0074 J 0.188 0.0693 J 0.211 J 0.435 J 0.0357 J 0.269 J 0.0346 J10 7.61 10.6 8.73 15.1 36.3 22.7 26.2 17.4

0.674 U 0.539 U 0.72 UJ 0.655 U 0.603 U 5.09 0.631 U 0.787 J 0.566 U0.617 J 0.172 U 0.234 J 1.81 1.74 1.56 0.258 J 1.55 0.181 U

2.12 J 1.07 U 2.73 J 4.07 3.24 4.48 2.08 J 2.52 1.81 J306 20 H 212 128 H 84 H 412 H 68.7 H 89.7 H 74.3 H

26.8 J 42.2 J 20.9 J 42 J 195 J 1140 J 152 J 566 J 52.8 J

10 U NA NA NA 9 U NA NA NA 9 U1 U NA NA NA 1 U NA NA NA 1 U1 U NA NA NA 1 U NA NA NA 1 U1 U NA NA NA 2 J NA NA NA 1 U1 U NA NA NA 1 U NA NA NA 1 U1 U NA NA NA 1 U NA NA NA 1 U1 U NA NA NA 1 U NA NA NA 1 U3 U NA NA NA 13 NA NA NA 81 U NA NA NA 1 U NA NA NA 1 U1 U NA NA NA 1 U NA NA NA 1 U

49 U NA NA NA 43 U NA NA NA NA49 U NA NA NA 43 U NA NA NA NA

120 U 93 U 130 UJ 110 U 1000 U 170 U 110 U 980 U 97 U250 U NA NA NA 210 U NA NA NA NA

59 U 51 J 110 J 110 J 510 U 1300 54 U 9900 49 U74 J 46 U 63 U 57 U 510 U 88 J 54 U 490 U 49 U

5.4 J 0.69 U 5.9 J 12 170 58 0.81 U 3500 0.98 J49 U NA NA NA 43 U NA NA NA NA15 2.2 J 13 43 610 J 84 1.8 U 14000 J 2.7 J23 3.2 J 23 42 600 J 77 2.7 U 16000 J 4.2 J25 3.1 U 23 40 490 J 96 3.6 U 16000 J 4.2 J33 3.2 J 23 72 920 120 6.6 J 20000 8.7 J12 1.5 U 11 22 290 50 1.8 U 7900 2.1 J98 U NA NA NA 12000 J NA NA NA NA49 U NA NA NA 220 J NA NA NA NA39 2.3 U 31 49 590 120 2.7 U 16000 3.3 J

2.4 J 1.5 U 2.1 U 3 J 75 J 11 U 6.8 U 3100 J 1.6 U49 U NA NA NA 140 J NA NA NA NA98 U NA NA NA 160 J NA NA NA NA66 4.9 J 74 110 1400 390 3.8 J 25000 711 J 4.6 U 8.8 J 8.8 J 62 J 46 J 5.4 U 1300 4.9 U

9.9 J 3.1 U 4.2 U 37 J 530 J 66 J 3.7 J 13000 J 5 J69 U 54 U 73 U 66 U 600 U 100 U 63 U 570 U 57 U49 U NA NA NA 43 U NA NA NA NA55 3.1 J 64 66 J 830 J 270 J 2.2 J 12000 J 5 J49 U NA NA NA 43 U NA NA NA NA75 5.5 J 75 100 1500 360 4.5 U 29000 7 J

5.8 U NA NA NA 5 U NA NA NA 4.7 U8.7 U NA NA NA 28 NA NA NA 7.2 U

8 U NA NA NA 23 NA NA NA 6.6 U

38.1 L 10 J 38 L 35.9 L 22.1 L 129 J 206 L 24 L 45.9 L32.3 13.6 36 29.6 22 53.3 26.3 18.3 17.811.5 4.5 11.8 10.6 8 7.6 5.3 10 8.60.26 U 0.2 U 0.28 U 0.25 U 0.23 U 0.79 J 0.24 U 0.22 U 0.21 U

9/3/2003 9/3/2003 9/3/20039/11/2003 9/3/2003 9/3/2003 9/3/20039/4/2003 9/3/20032 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10

3b 3b 3b3b 3b 3b 3b3b 3b3bUP021-090303SO02 3bUP022-090303SO02 3bUP023-090303SO02 3bUP024-090303SO023bUP017-090303SO02 3bUP018-091103SO02 3bUP019-090303SO02 3bUP020-090303SO023bUP016-090403SO02


TABLE 4-3


Sample No.IB:






16500 11400 9280 763 36800 13300 9630 60600 55200 J0.778 U 0.849 U 0.793 U 3.95 UJ 0.758 U 0.808 U 0.808 U 3.76 UJ 3.58 L

8.66 8.13 5.44 2.99 U 7.45 7.46 6.22 35 41.1201 294 162 124 189 210 93.2 64 73

0.838 0.44 J 0.107 J 0.964 J 0.062 U 0.133 J 1.67 0.0615 UJ 0.386 J78.7 J 17.8 J 17.2 2.08 J 27.8 26.7 23.1 37.6 J 37 J5.77 6.15 5.42 0.838 U 6.11 6.55 1.91 1.38 0.811.5 H 12.9 H 8.44 H 2.14 J 12.3 H 13.3 H 72.7 H 1.02 J 4.8620.6 J 9.63 J 14 514 J 14.6 14.2 612 44.8 46.1 J345 285 268 4.94 360 384 44.1 1960 J 1420 J

0.0461 J 0.0306 J 0.0101 J 0.0632 H 0.0556 J 0.0348 J 0.506 J 0.367 0.387 H16 17.4 13.1 1.67 J 15.1 18 7.97 2.12 3.55

0.554 U 0.605 U 0.565 U 2.81 U 0.54 U 0.575 U 0.769 J 12.5 0.54 U0.238 J 0.193 U 0.18 U 0.898 U 0.172 U 0.184 U 0.388 J 1.38 0.172 U

1.27 J 1.72 J 1.12 U 5.57 U 1.42 J 1.33 J 1.14 U 2.6 2.9187.9 H 33.2 H 30.2 1.33 J 76.4 57.2 28.3 292 304 J56.7 J 48.1 J 41.2 12.6 J 46.1 56.9 76.1 16 28.3

8 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA4 J NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA1 U NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA97 U 100 U 96 U 98 U 160 J 99 U 430 NA NA

NA NA NA NA NA NA NA NA NA49 U 52 U 71 J 49 U 47 U 150 J 250 J NA NA49 U 52 U 48 U 49 U 47 U 49 U 50 U NA NA

0.95 J 0.79 U 0.72 U 2 J 42 67 32 NA NANA NA NA NA NA NA NA NA NA3.7 J 1.7 U 1.6 U 7.5 J 74 J 31 J 76 J NA NA5.1 J 2.6 U 2.4 U 5.6 J 69 J 18 J 51 J NA NA5.7 J 3.5 U 3.2 U 10 J 53 J 20 J 70 J NA NA10 J 3.5 U 3.2 U 13 J 100 15 J 53 NA NA

2.6 J 1.7 U 1.6 U 4.8 J 31 10 33 NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA4.8 J 2.6 U 2.4 U 13 J 70 28 96 NA NA1.6 U 1.7 U 1.6 U 1.9 J 4.7 J 2.6 J 4.2 J NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA10 1.7 U 2.4 J 17 210 150 240 NA NA

4.9 U 5.2 U 4.8 U 4.9 U 17 J 71 27 J NA NA6 J 3.5 U 3.2 U 7.6 J 55 12 J 25 NA NA

57 U 61 U 56 U 57 U 55 U 58 U 59 U NA NANA NA NA NA NA NA NA NA NA5.8 J 1.7 U 1.9 J 26 210 J 270 J 240 J NA NANA NA NA NA NA NA NA NA NA10 J 4.4 U 4 U 15 J 210 120 240 NA NA

4.7 U NA NA NA NA NA NA NA NA7.2 U NA NA NA NA NA NA NA NA6.6 U NA NA NA NA NA NA NA NA

29.2 J 41.3 J 26.1 L 114 L 15.4 L 36.4 L 34.9 L 17.6 L 61.7 L17.6 23.8 16.8 18.1 14.6 19.1 20.7 13 17.1

8.7 7.8 9.3 5.4 7.9 9.9 6.6 8.6 10.40.21 U 0.23 U 0.21 U 0.22 U 0.21 U 0.22 U 0.23 U 1.3 0.36 J

9/3/2003 9/3/2003 9/5/2003 9/5/20039/3/2003 9/3/2003 9/4/2003 9/3/20039/3/20032 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 10

3b 3b 4a 4a3b 3b 3b 3b3b4aUP002-090503SO023bUP028-090303SO02 3bUP029-090303SO02 3bUP030-090303SO02 4aUP001-090503SO023bUP024-090303SO02FD 3bUP025-090303SO02 3bUP026-090303SO02 3bUP027-090403SO02


TABLE 4-3


Sample No.IB:






60100 J 80700 J 101000 92700 65700 J 40600 109000 93100 841003.06 L 1.08 UJ 1.19 UJ 1.13 UJ 1.67 L 1.01 UJ 1.16 J 1.2 UJ 1.74 J37.8 27.4 27.6 47.6 60.4 15.1 25 18.1 34.779.5 170 161 146 84.4 56.3 168 H 168 159 H

0.658 0.139 J 0.0976 UJ 0.0928 UJ 0.744 0.0828 UJ 0.138 J 0.0984 U 0.0858 U35.5 J 98 H 115 J 101 J 58.9 J 35.6 J 128 H 98.6 97.5 H

0.747 3.07 J 2.59 2.13 0.98 0.552 J 3.19 2.89 3.044.12 7.71 6.76 8.77 5.95 2.31 14.9 7.95 8.58

43 J 82.4 94.8 79.4 43.3 J 26 89.6 85.7 831060 J 310 310 J 384 J 669 J 97.1 J 347 361 364

0.241 H 0.356 0.482 0.237 2 H 0.163 0.246 0.279 0.3482.61 5.04 5.28 4.2 4.21 2.96 6.83 6.83 5.26

0.586 U 0.771 U 1.49 J 0.808 U 2.11 0.721 U 0.812 U 0.856 U 1.06 J0.187 U 0.246 U 3.88 3.88 0.217 U 1.62 0.259 U 0.273 U 0.238 U

2.36 J 1.52 U 1.68 U 1.6 U 1.94 J 1.43 U 2.92 J 1.69 U 1.86 J250 J 172 H 164 235 293 J 136 183 122 189

28.6 27 J 17.5 16.7 15.4 20.6 26.2 29.7 22


NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA100 U NA NA NA NA NA NA 320 J NANA NA NA NA NA NA NA NA NA51 U NA NA NA NA NA NA 73 U NA51 U NA NA NA NA NA NA 73 U NA13 NA NA NA NA NA NA 46 NA

NA NA NA NA NA NA NA NA NA86 NA NA NA NA NA NA 220 NA

100 NA NA NA NA NA NA 240 NA91 NA NA NA NA NA NA 260 NA

140 NA NA NA NA NA NA 260 NA54 NA NA NA NA NA NA 130 NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA91 NA NA NA NA NA NA 220 NA18 NA NA NA NA NA NA 47 NA

NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA170 NA NA NA NA NA NA 460 NA6.3 J NA NA NA NA NA NA 7.3 U NA93 NA NA NA NA NA NA 190 NA60 U NA NA NA NA NA NA 85 U NA

NA NA NA NA NA NA NA NA NA88 NA NA NA NA NA NA 260 NA

NA NA NA NA NA NA NA NA NA170 NA NA NA NA NA NA 380 NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA

55.4 L 125 80.1 L 105 L 105 L 10.5 L 114 L 98.5 J 39.8 L22.1 40.2 44.7 42.4 32.3 34.8 42.7 45.1 38.310.7 11.8 11.7 11.6 11.1 11.6 11.4 12 12.40.32 J 0.29 U 0.31 U 0.31 U 0.28 J 0.27 U 2.2 22.8 0.5 J

9/9/20039/5/2003 9/5/2003 9/6/2003 9/12/20039/5/2003 9/6/2003 9/5/2003 9/5/20032 - 10 2 - 102 - 10 2 - 10 2 - 10 2 - 102 - 10 2 - 10 2 - 10

4a4a 4a 4a 4a4a 4a 4a 4a4aUP010-091203SO02 4aUP011-090903SO024aUP006-090503SO02 4aUP007-090503SO02 4aUP008-090503SO02 4aUP009-090603SO024aUP003-090503SO02 4aUP004-090603SO02 4aUP005-090503SO02


TABLE 4-3


Sample No.IB:






102000 5670 J 59100 27900 J 32600 16500 J 83300 J 59500 J 79700 J1.6 J 0.727 UJ 0.99 J 0.926 UJ 0.915 UJ 0.843 UJ 0.918 UJ 0.993 L 0.919 UJ30 2.04 J 19.9 2.64 J 6.03 J 3.4 J 20.1 20.5 L 24.3

158 H 69.4 J 237 H 354 J 291 114 J 139 130 J 1580.0926 U 0.0595 UJ 0.074 U 0.495 J 0.168 J 0.0868 J 0.67 J 1.33 1.45

115 H 8.3 J 56.1 H 24.4 J 31.7 17.8 J 41.7 H 49.6 J 61.7 H3.15 3.07 J 6.66 10.1 J 9.69 3.39 J 1.75 J 1.63 J 4.63 J11.9 5.71 J 15.5 29.5 J 26.7 8.13 J 5.01 8.3 9.9293.9 5.23 J 63.4 14.9 J 19.7 11.9 J 166 335 J 187365 45.8 J 432 156 J 159 105 J 221 181 J 298

0.295 0.003 UJ 0.101 J 0.0272 J 0.0352 J 0.0213 J 0.382 0.147 0.1826.86 10.3 J 17.8 28.4 J 28.6 10.8 J 4.1 6.4 10.4

0.939 J 0.518 UJ 0.644 U 0.659 UJ 0.652 U 0.6 UJ 2.41 1.65 0.998 J0.257 U 0.165 UJ 0.206 U 0.282 J 0.244 J 0.211 J 0.209 U 0.206 U 0.209 U

3.12 J 1.04 J 3.22 1.3 UJ 1.76 J 1.19 UJ 1.29 U 1.28 U 1.3 U183 15.6 J 119 40.5 J 66.8 28.2 J 136 H 138 J 163 H

26.3 25.7 J 53.5 74.8 J 70.6 28.9 J 37.6 J 98.8 J 158 J

NA NA NA 1200 U 1200 U NA NA 38 47NA NA NA 180 U 180 U NA NA 1 U 1 UNA NA NA 180 U 180 U NA NA 1 U 1 UNA NA NA 180 U 180 U NA NA 2 J 2 JNA NA NA 8800 13000 NA NA 1 U 1 UNA NA NA 1400 2100 NA NA 1 U 1 UNA NA NA 180 U 180 U NA NA 1 U 1 UNA NA NA 350 U 350 U NA NA 18 18NA NA NA 3400 5700 NA NA 1 U 1 UNA NA NA 16000 24000 NA NA 1 U 1 U

NA NA NA 24000 36000 NA NA 47 U 47 UNA NA NA 470 UJ 480 U NA NA 47 U 47 UNA NA NA NA NA NA NA NA NANA NA NA 2300 U 2400 U NA NA 310 J 240 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA 470 U 480 U NA NA 47 U 47 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA 940 UJ 950 U NA NA 120 J 95 UNA NA NA 18000 26000 NA NA 47 U 47 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA 110000 130000 NA NA 47 U 47 UNA NA NA 940 UJ 950 U NA NA 94 U 95 UNA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NANA NA NA 7400 13000 NA NA 47 U 47 UNA NA NA NA NA NA NA NA NANA NA NA 470 U 480 U NA NA 54 J 58 JNA NA NA NA NA NA NA NA NANA NA NA 27 UJ 5.6 U NA NA 5.5 U 5.5 UNA NA NA 41 U 8.4 U NA NA 8.3 U 8.4 UNA NA NA 38 U 7.7 U NA NA 7.6 U 7.7 UJ

86.3 L 6.4 J 95.8 L 12.4 J 32.3 J 17.1 J 8.8 J 18.1 L 30.1 J42.8 10.1 J 28.5 28.7 30 J 21.7 J 30.2 29.2 29.612.4 9.1 9.8 12.2 12.2 10 10.5 10.4 10.512.5 0.19 UJ 0.24 U 0.25 UJ 0.25 U 0.23 UJ 0.25 U 0.51 U 0.25 U

9/6/2003 9/6/20039/8/2003 9/8/2003 9/8/2003 9/6/20039/9/2003 9/8/2003 9/9/20030 - 10 0 - 10 0 - 100.5 - 10 2 - 10 2 - 10 1 - 112 - 10 1 - 10

4e 4e4e 4e 4e 4e4a 4e 4e4eUP005-090603SO03 4eUP006-090603SO03 4eUP006-090603SO03FD4eUP002-090903SO03 4eUP003-090803SO03 4eUP003-090803SO03FD 4eUP004-090803SO034aUP012-090903SO02 4eUP001-090803SO03


TABLE 4-3


Sample No.IB:






82300 J 79800 J0.984 UJ 0.935 UJ

31.8 J 19.3252 J 173

0.544 J 0.931110 J 50.3 H

1.54 J 2.53 J14.8 J 6.24128 J 102 J178 J 265

0.129 J 0.1813.59 J 7.11

0.774 J 1.672.51 J 0.212 U2.06 J 1.32 U272 J 130 H

38.5 J 111 J

NA NANA NANA NANA NANA NANA NANA NANA NANA NANA NA

NA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NANA NA

8.3 J 16.8 J33.6 J 29.4

11 120.26 UJ 0.25 U

9/8/2003 9/6/20030 - 102 - 10

4e 4e4eUP008-090603SO034eUP007-090803SO03


TABLE 4-4

SUMMARY OF DETECTED CONSTITUENTS IN SEDIMENTNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:

Depth (feet)Sample Date:

Metals UnitsAluminum mg/kg 98200 68000 104000 61100 63700 90900 86400 81800Antimony mg/kg 1.09 U 0.961 U 1.22 U 0.932 U 0.931 U 1.3 U 1.44 U 1.51 UArsenic mg/kg 26.4 27.9 32.1 33.1 36 38.7 25.1 27.8Barium mg/kg 172 J 140 189 J 138 J 144 J 171 J 104 J 104 JCadmium mg/kg 0.0893 U 0.0786 U 0.1 U 0.0763 U 0.0762 U 0.107 U 0.249 J 1.84Chromium mg/kg 493 334 519 293 320 412 1220 1260Cobalt mg/kg 2.07 2.17 2.29 1.87 1.84 2.51 3.65 3.74Copper mg/kg 11.2 11.2 12.8 10.6 11.2 22 133 153Lead mg/kg 96.8 89.1 110 90.9 95 111 312 340Manganese mg/kg 383 425 423 482 473 528 258 235Mercury mg/kg 0.523 J 0.384 0.55 J 0.306 J 0.322 J 0.42 J 0.284 J 0.27 JNickel mg/kg 7.23 5.38 7.74 4.42 5.08 6.56 43.4 20.8Selenium mg/kg 0.906 J 2.45 4.94 3.72 4.07 5.11 6.96 8.72Silver mg/kg 3.54 0.218 U 3.79 2.13 2.21 3.01 2.05 2.15Thallium mg/kg 2.19 J 1.35 U 2.94 J 3.5 2.92 3.59 J 6.96 5.83Vanadium mg/kg 444 428 519 531 565 540 1150 1250Zinc mg/kg 24.7 J 31 30 J 29.7 J 30.6 J 42.3 J 685 J 997 J

VOCs Acetone ug/kg 33 J NA NA NA NA NA NA 16 UBenzene ug/kg 2 U NA NA NA NA NA NA 2 UMethyl Tertiary Butyl Ether ug/kg 2 U NA NA NA NA NA NA 2 UMethylene Chloride ug/kg 3 U NA NA NA NA NA NA 5 UToluene ug/kg 2 U NA NA NA NA NA NA 2 UXylene (Total) ug/kg 2 U NA NA NA NA NA NA 2 U

SVOCs 2-Methylnaphthalene ug/kg 56 U NA NA NA NA NA NA 76 UAcenaphthene ug/kg 56 U NA NA NA NA NA NA 130 JAnthracene ug/kg 56 U NA NA NA NA NA NA 110 JBenzo(a)anthracene ug/kg 56 U NA NA NA NA NA NA 130 JBenzo(a)pyrene ug/kg 56 U NA NA NA NA NA NA 87 JBenzo(b)fluoranthene ug/kg 56 U NA NA NA NA NA NA 140 JBenzo(g,h,i)perylene ug/kg 56 U NA NA NA NA NA NA 77 JBenzo(k)fluoranthene ug/kg 56 U NA NA NA NA NA NA 76 Ubis(2-Ethylhexyl)phthalate ug/kg 110 U NA NA NA NA NA NA 150 UChrysene ug/kg 56 U NA NA NA NA NA NA 130 JDibenz(a,h)anthracene ug/kg 56 U NA NA NA NA NA NA 76 UDibenzofuran ug/kg 56 U NA NA NA NA NA NA 79 JFluoranthene ug/kg 56 U NA NA NA NA NA NA 370 JFluorene ug/kg 56 U NA NA NA NA NA NA 150 JIndeno(1,2,3-cd)pyrene ug/kg 56 U NA NA NA NA NA NA 76 UNaphthalene ug/kg 56 U NA NA NA NA NA NA 76 UPhenanthrene ug/kg 56 U NA NA NA NA NA NA 660 JPyrene ug/kg 56 U NA NA NA NA NA NA 330 JPCB-1254 ug/kg 9.8 U NA NA NA NA NA NA 89PCB-1260 ug/kg 9 U NA NA NA NA NA NA 71

Wet ChemistryFluoride mg/kg 53.4 L 119 97.5 L 373 L 223 L 79 L 107 L 111 LMoisture percent 40.1 33.3 48.1 30.6 30.5 49.9 54.2 56.2pH pH units 9.8 10.1 10.1 10.2 10.1 10 7.2 7.2Total Cyanide mg/kg 0.3 U 0.27 U 0.33 U 0.64 J 0.74 0.35 U 0.39 U 0.41 UNotes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedL - value is biased low.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.

1aOW001-090603SE01 1aOW002-090603SE01 1aOW003-090603SE01 1aOW004-090603SE01 1aOW005-090603SE01 1aOW006-090603SE01 1bOW001-090603SE01 1bOW002-090603SE011a 1a 1a 1a 1a 1a 1b 1b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/6/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003


TABLE 4-4


Sample No:IB:


Metals UnitsAluminum mg/kg Antimony mg/kgArsenic mg/kgBarium mg/kgCadmium mg/kgChromium mg/kgCobalt mg/kgCopper mg/kgLead mg/kgManganese mg/kgMercury mg/kgNickel mg/kgSelenium mg/kgSilver mg/kgThallium mg/kgVanadium mg/kgZinc mg/kg

VOCs Acetone ug/kg Benzene ug/kgMethyl Tertiary Butyl Ether ug/kgMethylene Chloride ug/kgToluene ug/kgXylene (Total) ug/kg

SVOCs 2-Methylnaphthalene ug/kgAcenaphthene ug/kgAnthracene ug/kgBenzo(a)anthracene ug/kgBenzo(a)pyrene ug/kgBenzo(b)fluoranthene ug/kgBenzo(g,h,i)perylene ug/kgBenzo(k)fluoranthene ug/kgbis(2-Ethylhexyl)phthalate ug/kgChrysene ug/kgDibenz(a,h)anthracene ug/kgDibenzofuran ug/kgFluoranthene ug/kgFluorene ug/kgIndeno(1,2,3-cd)pyrene ug/kgNaphthalene ug/kgPhenanthrene ug/kgPyrene ug/kgPCB-1254 ug/kgPCB-1260 ug/kg

Wet ChemistryFluoride mg/kgMoisture percentpH pH unitsTotal Cyanide mg/kgNotes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.ug/kg - micrograms per kilogram or parts per billion.NA - not analyzedL - value is biased low.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.

90300 68700 106000 119000 90200 102000 87900 613001.63 U 0.976 U 0.996 U 1.48 U 1.09 U 1.26 U 1.4 U 1.01 U28.6 19.3 24.5 23.6 34.3 28.2 23.5 18.4119 J 112 136 130 176 125 108 60.42.25 0.0799 U 0.0815 U 0.684 J 0.0896 U 0.103 U 0.742 J 0.0824 U1270 805 743 993 595 605 960 8734.16 2.72 4.53 5.82 8.74 5.65 5.47 2.84159 22.7 42.8 110 43 61.2 86.1 19.9411 103 157 252 204 153 203 69.6270 308 250 285 341 268 256 2230.32 J 0.203 0.286 0.393 0.358 0.245 0.281 0.176

22 9.49 14.9 28.7 26.1 19.4 22.8 7.918.61 0.695 U 3.69 7.65 3.19 5.82 1.97 J 8.12 J2.35 0.222 U 0.226 U 0.337 U 0.249 U 0.286 U 0.318 U 0.229 U

8 1.38 U 1.4 U 2.09 U 1.54 U 1.77 U 2.8 J 3.321270 818 816 1090 656 823 911 899968 J 67.7 139 1030 200 488 541 39.9

NA NA 11 U NA NA NA NA NANA NA 2 U NA NA NA NA NANA NA 2 U NA NA NA NA NANA NA 6 J NA NA NA NA NANA NA 2 U NA NA NA NA NANA NA 2 J NA NA NA NA NA

NA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 100 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 51 U NA NA NA NA NANA NA 50 NA NA NA NA NANA NA 46 NA NA NA NA NA

130 L 27.5 L 46.1 L 108 L 46.4 L 78.9 L 78.7 L 62.3 J59.9 33.7 34.4 56.3 39.7 48.1 52.8 35.17.2 8 8.3 7.5 7.9 7.5 7.2 8.7

0.44 U 0.27 U 0.33 J 0.41 U 1.3 0.92 J 0.37 U 0.28 U

1bOW003-090603SE01 1bWL001-090503SE01 1bWL002-090503SE01 1bWL003-090503SE01 1bWL004-090503SE01 1bWL005-090503SE01 1bWL006-090503SE01 1bWL007-090503SE011b 1b 1b 1b 1b 1b 1b 1b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/6/2003 9/5/2003 9/5/2003 9/5/2003 9/5/2003 9/5/2003 9/5/2003 9/5/2003


TABLE 4-4


Sample No:IB:






88500 79200 77900 74300 82700 80100 NA 797001.58 U 1.01 U 1.03 U 1.03 U 1.07 U 1.03 U NA 1.02 U20.7 16.4 15 16.7 15.8 16.2 NA 17.265.8 71.1 68.1 66.1 73.3 69.7 NA 72.21.89 0.083 U 0.0839 U 0.0844 U 0.0874 U 0.0839 U NA 0.0835 U978 1180 1110 1120 1190 1170 NA 12203.08 2.99 1.3 2.63 2.68 2.79 NA 2.68128 18.3 16.3 15.4 17.5 16.6 NA 16.4568 89.8 81.4 81.7 88.3 87.6 NA 89.4113 259 224 209 239 217 NA 217

0.234 J 0.168 0.198 0.209 0.179 0.18 NA 0.20312.8 9.4 8.64 8.44 9.26 9 NA 8.461.21 J 3.61 U 3.65 U 0.734 U 0.76 U 3.65 U NA 3.63 U

0.359 U 0.23 U 0.233 U 0.234 U 0.243 U 0.233 U NA 0.232 U2.22 U 1.43 U 1.44 U 1.45 U 1.5 U 1.45 U NA 1.44 U987 997 934 980 974 984 NA 1030404 45.2 33.9 29.8 38.1 34.3 NA 33.2

NA NA NA NA NA NA 11 U NANA NA NA NA NA NA 2 U NANA NA NA NA NA NA 2 U NANA NA NA NA NA NA 3 U NANA NA NA NA NA NA 2 U NANA NA NA NA NA NA 2 U NA

NA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 790 NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 52 U NA NANA NA NA NA NA 9.3 U NA NANA NA NA NA NA 8.5 U NA NA

69.2 J 52.3 J 35 J 42.8 J 32.2 J 30.4 J NA 41.1 J58.6 36.2 37.5 36 38.8 36.3 NA 37.26.6 9.2 9.3 9.3 9.3 9.2 NA 9.3

0.43 U 0.28 U 0.29 U 0.28 U 0.28 U 0.27 U NA 0.28 U

1bWL008-090503SE01 1cOW001-090403SE01 1cOW002-090403SE01 1cOW003-090403SE01 1cOW004-090403SE01 1cOW005-090403SE01 1cOW005-090503SE01 1cOW006-090403SE011b 1c 1c 1c 1c 1c 1c 1c

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/5/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003 9/5/2003 9/4/2003


TABLE 4-4


Sample No:IB:






59900 67100 80700 82200 73600 65300 91000 346000.992 U 1 U 1.04 U 1.05 U 0.969 U 0.966 U 1.67 J 4.28 J18.6 18.1 15.8 15.8 16.5 19.1 20.8 14162.4 77.5 76.5 77.9 78.6 72.5 162 441

0.0812 U 0.0822 U 0.0847 U 0.0862 U 0.0793 U 0.0791 U 0.0829 U 16.5759 958 1290 1310 990 989 371 96.22.51 2.7 2.63 2.7 2.86 2.41 3 19.521.3 16.1 18.7 19 28.2 38.1 13 33767.4 78.6 98 99.2 85.5 74.3 94.1 223317 296 243 248 285 298 445 340

0.123 J 0.162 0.204 0.186 0.247 0.175 0.388 1.147.12 8.27 9.84 9.77 10.7 7.98 7.28 82.53.34 3.58 U 3.69 U 3.75 U 3.45 U 3.44 U 0.721 U 2.33

0.226 U 0.228 U 0.235 U 0.24 U 0.22 U 0.22 U 0.23 U 5.851.4 U 1.42 U 1.46 U 1.48 U 1.37 U 1.36 U 1.43 U 2.14 U834 886 1030 1040 888 969 347 86.556.3 46.9 45.4 44.4 57.1 62.1 45.4 763

NA NA NA NA 11 U NA NA NANA NA NA NA 2 U NA NA NANA NA NA NA 2 U NA NA NANA NA NA NA 4 J NA NA NANA NA NA NA 2 U NA NA NANA NA NA NA 6 J NA NA NA

NA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 100 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 51 U NA NA NANA NA NA NA 59 NA NA NANA NA NA NA 8.2 U NA NA NA

25.3 L 42.8 L 39.3 J 19.5 J 14.9 L 60.9 L 46.4 J 1340 J34.8 36.2 38.1 38.6 34.5 33.7 35.5 56.9

8 8.4 8.5 8.6 8.1 8.8 8.7 8.90.27 U 0.27 U 0.28 U 0.28 U 0.27 U 0.26 U 0.94 0.41 U

1cWL001-090503SE01 1cWL002-090503SE01 1cWL003-090403SE01 1cWL003-090403SE01FD 1cWL004-090503SE01 1cWL005-090503SE01 3bWL004-091003SE01 3bWL005-091003SE011c 1c 1c 1c 1c 1c 3b 3b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/5/2003 9/5/2003 9/4/2003 9/4/2003 9/5/2003 9/5/2003 9/10/2003 9/10/2003


TABLE 4-4


Sample No:IB:






53900 5950 7050 192000 40700 44400 26700 172004.89 J 1.26 U 1.31 U 5.31 0.844 U 1.31 J 0.889 U 3.21119 67.7 72.6 137 12.8 12.8 11.8 21383 128 J 47.5 J 51.9 160 178 359 10710.5 1.3 1.34 8.05 1.09 0.986 0.807 0.971211 25.1 28.7 163 51.5 58.5 35.2 84.314.7 0.963 0.896 J 9.54 6.62 6.92 6.78 9.26215 11.2 13.3 170 21.4 23.6 35 66.9167 117 136 695 73.9 81.4 37.1 85521 307 287 546 423 515 202 365

0.543 0.0344 J 0.0835 J 0.194 J 0.102 J 0.0739 J 0.0464 J 0.0607 J82.2 4.1 4.56 105 15.7 16.6 24.2 43.42.85 J 1.68 J 2.39 11.3 1.28 J 0.614 U 1.69 1.542.37 J 1.43 U 0.297 U 0.536 J 0.192 U 0.196 U 0.202 U 0.201 J6.15 J 1.77 U 1.84 U 1.95 U 1.19 U 1.22 U 1.25 U 1.21 U213 43.5 53.2 1170 111 119 86.8 71.5672 202 J 77.5 J 2620 157 152 206 297

NA NA NA 15 U NA NA NA NANA NA NA 2 U NA NA NA NANA NA NA 5 J NA NA NA NANA NA NA 4 U NA NA NA NANA NA NA 2 U NA NA NA NANA NA NA 2 U NA NA NA NA

NA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 93 J NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 140 U NA NA NA NANA NA NA 71 J NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 90 J NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 70 U NA NA NA NANA NA NA 110 J NA NA NA NANA NA NA 70 NA NA NA NANA NA NA 32 J NA NA NA NA

2790 J 53.2 L 43.5 J 140 J 74.8 J 62.1 J 58.2 J 39.7 J81.5 48.6 51 52.2 23.3 23.5 27.2 24.18.4 10.6 10.7 7.6 7.9 7.9 7.8 9.3

0.96 U 53.5 53.6 27.9 0.23 U 0.23 U 1 0.25 J

3bWL006-091003SE01 3bWL009-090903SE01 3bWL009-090903SE01FD 3bWL010-090903SE01 3bWL012-090903SE01 3bWL012-090903SE01FD 3bWL014-090903SE01 3bWL016-090903SE013b 3b 3b 3b 3b 3b 3b 3b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/10/2003 9/9/2003 9/9/2003 9/9/2003 9/9/2003 9/9/2003 9/9/2003 9/9/2003


TABLE 4-4


Sample No:IB:






123000 71500 80500 43500 41700 34000 82900 893003.34 J 1.14 U 1.8 J 1.02 U 1.53 U 1.51 U 1.07 U 1.09 U24.6 17.7 24.5 15.5 21.6 60.5 23 55.6141 114 142 176 122 J 68.8 J 128 148

0.655 J 1.59 2.01 1.16 1.24 4.45 0.183 J 0.825 J43.5 26.3 29.2 20.6 30.6 25.2 102 1275.14 3.61 4.52 6.23 6.92 2.63 2.59 2.7715.8 18.6 22.9 18.2 27.8 25 22 33.2125 165 278 90.6 118 369 92.3 123851 385 675 300 464 340 357 335

0.563 0.497 0.513 0.194 0.14 J 0.259 J 0.267 0.21613.7 16.7 24 18 22.6 18.2 6.64 8.663.74 J 4.8 J 11.6 J 1.58 J 7.37 2.34 1.47 J 3.46 J

0.312 U 0.26 U 0.283 U 0.231 U 0.348 U 1.72 U 0.243 U 0.248 U1.93 U 1.61 U 1.76 U 1.43 U 2.16 U 2.13 U 1.51 U 1.54 U168 140 219 93.2 139 78.6 123 193185 271 421 202 146 J 879 J 69.8 162

NA NA NA 11 U NA NA NA NANA NA NA 2 U NA NA NA NANA NA NA 2 U NA NA NA NANA NA NA 3 U NA NA NA NANA NA NA 2 U NA NA NA NANA NA NA 2 U NA NA NA NA

NA NA NA 52 U NA NA NA NANA NA NA 52 U NA NA NA NANA NA NA 95 J NA NA NA NANA NA NA 320 J NA NA NA NANA NA NA 300 J NA NA NA NANA NA NA 390 J NA NA NA NANA NA NA 210 J NA NA NA NANA NA NA 150 J NA NA NA NANA NA NA 100 U NA NA NA NANA NA NA 370 J NA NA NA NANA NA NA 65 J NA NA NA NANA NA NA 52 U NA NA NA NANA NA NA 630 NA NA NA NANA NA NA 52 U NA NA NA NANA NA NA 220 J NA NA NA NANA NA NA 52 U NA NA NA NANA NA NA 420 J NA NA NA NANA NA NA 640 NA NA NA NANA NA NA 9.2 U NA NA NA NANA NA NA 8.4 U NA NA NA NA

29.8 J 17.1 J 20.6 J 40.3 J 70.8 J 72.6 L 69.6 J 59.8 J51.9 44 48.1 35.7 57.7 57.7 38.3 39.611.7 11.3 11.1 9.8 9 10.9 10 10.20.37 U 0.31 U 0.35 U 0.27 U 0.42 U 1.1 J 2.3 0.29 U

4aOW001-090703SE01 4aOW002-090703SE01 4aOW003-090703SE01 4aOW004-090703SE01 4aOW005-090803SE01 4aOW006-090803SE01 4aOW007-090703SE01 4aOW008-090703SE014a 4a 4a 4a 4a 4a 4a 4a

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/7/2003 9/7/2003 9/7/2003 9/7/2003 9/8/2003 9/8/2003 9/7/2003 9/7/2003


TABLE 4-4


Sample No:IB:






79700 93600 32200 8280 68000 76900 16400 424001.02 U 1.05 U 2.82 J 1.14 U 1.11 U 1.57 U 1.88 U 1.07 U39.9 30.8 28.5 15.9 19.3 28.9 13.8 24.8135 176 81.4 171 J 124 175 J 116 J 117

0.212 J 0.568 J 3.17 0.0932 U 3.42 1.06 J 3.85 2.92117 114 179 155 776 588 92.8 4262.51 2.94 3.42 2.74 3.67 2.74 3.48 3.8322.2 32.7 25 95.7 32 78.3 55.8 26.292.3 93.9 106 258 143 280 155 106346 327 366 36.4 215 121 66.9 189

0.144 J 0.158 0.153 J 0.137 J 0.254 0.267 J 0.107 J 0.1756.43 8.6 14 13.3 18.2 16.9 20.4 16.91.12 J 1.62 J 4.43 J 6.55 2.01 J 3.99 3.32 3.08 J

0.232 U 0.239 U 0.25 U 0.587 J 0.253 U 1.89 0.428 U 0.242 U1.44 U 1.48 U 1.55 U 3.11 J 1.57 U 2.21 U 2.65 U 1.5 U159 123 404 156 437 401 162 45185.8 121 314 114 J 414 216 J 387 J 348

NA NA NA 12 U NA NA NA NANA NA NA 2 J NA NA NA NANA NA NA 16 NA NA NA NANA NA NA 4 U NA NA NA NANA NA NA 2 J NA NA NA NANA NA NA 2 U NA NA NA NA

NA NA NA 550 J NA NA NA NANA NA NA 59 U NA NA NA NANA NA NA 59 U NA NA NA NANA NA NA 120 J NA NA NA NANA NA NA 100 J NA NA NA NANA NA NA 130 J NA NA NA NANA NA NA 72 J NA NA NA NANA NA NA 59 U NA NA NA NANA NA NA 120 U NA NA NA NANA NA NA 150 J NA NA NA NANA NA NA 59 U NA NA NA NANA NA NA 230 J NA NA NA NANA NA NA 180 J NA NA NA NANA NA NA 59 U NA NA NA NANA NA NA 61 J NA NA NA NANA NA NA 180 J NA NA NA NANA NA NA 1000 NA NA NA NANA NA NA 240 J NA NA NA NANA NA NA 10 U NA NA NA NANA NA NA 9.5 U NA NA NA NA

88.4 J 60.9 J 142 J 54.1 J 151 L 97.1 J 205 J 102 L36.6 39 42.2 43.2 41.9 59.5 66.3 39.310.3 10.7 7.5 6.3 7.9 6.4 6.9 8.10.28 U 0.29 U 0.3 U 3.3 0.31 U 5.2 0.53 U 0.28 U

4aOW009-090703SE01 4aOW010-090703SE01 4bWL001-090703SE01 4bWL002-090803SE01 4bWL003-090703SE01 4bWL004-090803SE01 4bWL005-090803SE01 4bWL006-090703SE014a 4a 4b 4b 4b 4b 4b 4b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/7/2003 9/7/2003 9/7/2003 9/8/2003 9/7/2003 9/8/2003 9/8/2003 9/7/2003


TABLE 4-4


Sample No:IB:






9880 24200 27200 47300 30900 514001.12 U 1.27 U 1.1 U 1.11 U 1.44 U 1.32 U110 98.8 119 85.1 95.3 7432.6 J 50.7 J 132 J 131 J 168 124

0.594 J 0.664 J 1.34 1.42 2.94 2.1114.1 22.6 53.6 77.2 9.85 13.9

0.715 J 1.12 1.34 1.85 1.95 4.562.76 7.35 15.2 18.9 6.3 10.2146 205 242 348 953 97687.1 158 172 165 86.6 97.5

0.0443 J 0.21 J 0.0401 J 0.108 J 0.148 J 0.141 J1.95 5.06 9.77 13.9 4.78 9.37

0.798 U 0.902 U 0.783 U 1.19 J 3.55 7.791.27 U 1.44 U 1.25 U 1.26 U 0.327 U 0.3 U1.58 U 1.78 U 1.55 U 1.56 U 2.03 U 1.86 U

33 55.4 98.8 169 72.6 16457.3 J 80.9 J 144 J 176 J 292 177

NA NA 12 U NA NA NANA NA 2 U NA NA NANA NA 3 J NA NA NANA NA 3 U NA NA NANA NA 2 U NA NA NANA NA 2 U NA NA NA

NA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 91 J NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 120 U NA NA NANA NA 110 J NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 120 J NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 58 U NA NA NANA NA 79 J NA NA NANA NA 140 J NA NA NANA NA 21 J NA NA NANA NA 20 J NA NA NA

39.3 J 32.7 J 51.1 J 36 J 89.7 J 125 J41.1 48.4 42.3 42.8 54.1 50.910.4 10.4 11.6 11 8.2 8.78.9 1.7 2.1 0.5 J 6.3 4.4

4dOW001-090803SE01 4dOW002-090803SE01 4dOW003-090803SE01 4dOW004-090803SE01 4dOW005-090803SE01 4dOW006-090803SE014d 4d 4d 4d 4d 4d

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 69/8/2003 9/8/20039/8/2003 9/8/2003 9/8/2003 9/8/2003


TABLE 4-5

SUMMARY OF DETECTED CONSTITUENTS IN SURFACE WATERNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:

Sample Date:Metals Units

Aluminum (Total) mg/l 6.65 52.3 46.6 0.674 0.0957 J NA 0.045 J 0.0413 UAntimony (Total) mg/l 0.0049 0.003 0.003 0.00036 J 0.00039 J NA 0.00032 J 0.0004 JArsenic (Total) mg/l 0.0625 0.0893 0.0807 0.0049 U 0.0049 U NA 0.0049 U 0.0049 UBarium (Total) mg/l 0.0107 0.112 0.0995 0.0479 0.0402 NA 0.0362 0.0334Cadmium (Total) mg/l 0.0038 0.0295 0.0269 0.00019 J 0.000085 U NA 0.000085 U 0.000085 UCalcium (Total) mg/l 1.52 14.9 8.42 186 184 NA 187 155Chromium (Total) mg/l 0.0596 0.433 0.449 0.0079 0.0022 U NA 0.0022 U 0.0022 UCobalt (Total) mg/l 0.0016 U 0.0021 J 0.0016 U 0.0016 U 0.0016 U NA 0.0016 U 0.0016 UCopper (Total) mg/l 0.0108 0.0094 J 0.0081 J 0.0032 0.0027 NA 0.0025 0.0022Lead (Total) mg/l 0.0061 0.0694 0.0617 0.0069 0.0015 J NA 0.0022 J 0.0008 JMagnesium (Total) mg/l 0.181 1.29 1.04 7.16 6.86 NA 7.04 6.45Manganese (Total) mg/l 0.0232 0.255 0.264 0.555 0.548 NA 0.547 0.141Mercury (Total) mg/l 0.00016 U 0.00016 J 0.00017 J 0.00016 U 0.00016 U NA 0.00016 U 0.00016 UNickel (Total) mg/l 0.00086 0.0054 0.0048 0.0048 0.0045 NA 0.004 0.004Selenium (Total) mg/l 0.0895 H 0.0367 H 0.0336 H 0.0017 J 0.0014 J NA 0.0015 J 0.0016 JSilver (Total) mg/l 0.00055 0.0048 0.0042 0.000073 U 0.000073 U NA 0.000073 U 0.000073 UThallium (Total) mg/l 0.000031 J 0.00012 J 0.000098 J 0.000027 U 0.000027 U NA 0.000027 U 0.000027 UVanadium (Total) mg/l 1.3 J 0.84 J 0.848 J 0.0124 0.0061 NA 0.0053 0.0048 JZinc (Total) mg/l 0.0205 U 0.0763 J 0.0408 J 0.0147 J 0.0041 U NA 0.0135 J 0.0092 J

Aluminum (Dissolved) mg/l 4.5 6.84 6.33 0.0413 U 0.0413 U NA 0.0413 U 0.0581 JAntimony (Dissolved) mg/l 0.0047 0.0025 0.0026 0.00047 J 0.00044 J NA 0.00045 J 0.00052Arsenic (Dissolved) mg/l 0.0605 0.0673 0.0623 0.0049 U 0.0049 U NA 0.0049 U 0.0049 UBarium (Dissolved) mg/l 0.0037 H 0.0064 H 0.0033 H 0.0368 0.0381 NA 0.0335 0.0315Cadmium (Dissolved) mg/l 0.00083 0.00078 0.00062 0.000085 U 0.000085 U NA 0.000085 U 0.000085 UCalcium (Dissolved) mg/l 1.2 1.39 1.41 177 188 NA 185 154Chromium (Dissolved) mg/l 0.0322 0.0335 0.0274 0.0022 U 0.0022 U NA 0.0022 U 0.0022 UCobalt (Dissolved) mg/l 0.0016 U 0.0016 U 0.0016 U 0.0029 J 0.0025 J NA 0.0021 J 0.002 JCopper (Dissolved) mg/l 0.0157 J 0.0072 J 0.0072 J 0.0023 0.0017 NA 0.0028 0.0019Lead (Dissolved) mg/l 0.0011 J 0.0018 J 0.0014 J 0.00072 J 0.00056 U NA 0.00063 J 0.00058 JMagnesium (Dissolved) mg/l 0.0686 J 0.071 J 0.0588 J 6.91 7.06 NA 7.05 6.46Manganese (Dissolved) mg/l 0.0051 0.0085 0.0058 0.513 0.554 NA 0.525 0.129Nickel (Dissolved) mg/l 0.0005 J 0.00044 J 0.00045 J 0.0049 0.0046 NA 0.0045 0.0041Selenium (Dissolved) mg/l 0.0874 H 0.0406 H 0.0406 H 0.0014 0.0013 NA 0.0013 0.0016Silver (Dissolved) mg/l 0.00026 J 0.00018 J 0.00014 J 0.000073 U 0.000073 U NA 0.000073 U 0.000073 UThallium (Dissolved) mg/l 0.000033 J 0.000027 U 0.000027 U 0.000027 U 0.000027 U NA 0.000027 U 0.000027 UVanadium (Dissolved) mg/l 1.23 H 0.556 H 0.527 H 0.0052 0.0045 J NA 0.0051 0.0045 JZinc (Dissolved) mg/l 0.0105 J 0.0151 J 0.0145 J 0.0185 J 0.0135 J NA 0.0147 J 0.0129 J

VOCs 2-Butanone ug/l 1.5 J NA NA NA 1.2 J NA NA NAAcetone ug/l 6.2 NA NA NA 6.8 NA NA NACarbon Disulfide ug/l 0.1 U NA NA NA 1 NA NA NA

SVOCs bis(2-Ethylhexyl)phthalate ug/l 2 U NA NA NA NA 2 U NA NAPhenol ug/l 1 U NA NA NA NA 0.9 U NA NA

Wet ChemistryFluoride mg/l 55.2 46.6 47.1 2.7 2.8 NA 2.7 2.3pH pH units 9.9 9.9 9.8 7.3 7.3 NA 7.5 7.4Sulfate mg/l 621 405 400 613 633 NA 612 548Total Cyanide mg/l 0.004 U 0.004 U 0.004 U 0.004 U 0.004 U NA 0.004 U 0.004 UTotal Dissolved Solids mg/l 2430 1950 2010 1190 1210 NA 1190 1040Turbidity ntu 116 3730 3480 3.4 2.1 NA 3.1 1.7Notes:mg/l - milligrams per liter or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.H - value is biased high.ug/l - micrograms per liter or parts per billion.NA - not analyzedntu - nepheletometric turbidity units.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.

1aOW001- 1aOW003-090603WS01 1aOW006-090603WS01 1bOW001-090503WS01 1bOW002-090503WS01 1bOW002-090903WS01 1bOW003-090503WS01 1bWL003-090503WS011a 1a 1a 1b 1b 1b 1b 1b

9/6/2003 9/6/2003 9/6/2003 9/5/2003 9/5/2003 9/9/2003 9/5/2003 9/5/2003


TABLE 4-5


Sample No:IB:


Aluminum (Total) mg/l Antimony (Total) mg/lArsenic (Total) mg/lBarium (Total) mg/lCadmium (Total) mg/lCalcium (Total) mg/lChromium (Total) mg/lCobalt (Total) mg/lCopper (Total) mg/lLead (Total) mg/lMagnesium (Total) mg/lManganese (Total) mg/lMercury (Total) mg/lNickel (Total) mg/lSelenium (Total) mg/lSilver (Total) mg/lThallium (Total) mg/lVanadium (Total) mg/lZinc (Total) mg/l

Aluminum (Dissolved) mg/lAntimony (Dissolved) mg/lArsenic (Dissolved) mg/lBarium (Dissolved) mg/lCadmium (Dissolved) mg/lCalcium (Dissolved) mg/lChromium (Dissolved) mg/lCobalt (Dissolved) mg/lCopper (Dissolved) mg/lLead (Dissolved) mg/lMagnesium (Dissolved) mg/lManganese (Dissolved) mg/lNickel (Dissolved) mg/lSelenium (Dissolved) mg/lSilver (Dissolved) mg/lThallium (Dissolved) mg/lVanadium (Dissolved) mg/lZinc (Dissolved) mg/l

VOCs 2-Butanone ug/l Acetone ug/lCarbon Disulfide ug/l

SVOCs bis(2-Ethylhexyl)phthalate ug/lPhenol ug/l

Wet ChemistryFluoride mg/lpH pH unitsSulfate mg/lTotal Cyanide mg/lTotal Dissolved Solids mg/lTurbidity ntu Notes:mg/l - milligrams per liter or parts per million.J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection limit.H - value is biased high.ug/l - micrograms per liter or parts per billion.NA - not analyzedntu - nepheletometric turbidity units.VOCs - Volatile Organic Compounds.SVOCs - Semivolatile Organic Compounds.

0.0443 J 74 33.2 42.3 33.9 37.3 42.1 2080.0003 J 0.00043 J 0.00043 J 0.00036 J 0.00039 J 0.00035 J 0.00049 J 0.00032 J0.0049 U 0.0195 0.0133 0.0096 J 0.0166 0.0153 0.0168 0.04380.0407 0.0849 0.0484 0.0563 0.0489 0.0538 0.0588 0.228

0.000085 U 0.0124 0.0084 0.0083 0.0079 0.0093 0.0095 0.0222177 70 7.94 8.26 7.93 8.12 11 71.7

0.0022 U 1.47 1.02 1.16 1.06 1.15 1.22 3.790.0016 U 0.0023 J 0.0016 J 0.0016 U 0.0023 J 0.002 J 0.0021 J 0.00610.0026 0.0186 0.0122 0.0131 0.0124 0.0137 0.0142 0.03290.0012 J 0.0806 0.0559 0.0613 0.0553 0.0616 0.067 0.204

7.07 3.47 1.66 1.8 1.7 1.84 1.95 6.220.63 0.345 0.168 0.206 0.173 0.188 0.199 0.798

0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U0.0042 0.0107 0.0064 0.0071 0.0066 0.0072 0.0079 0.02260.0017 J 0.00071 J 0.0006 J 0.00048 J 0.0006 J 0.00061 J 0.00056 J 0.0016 J

0.000073 U 0.0024 0.0016 0.0017 0.0016 0.0018 0.002 0.00420.000027 U 0.000046 J 0.000027 U 0.000027 J 0.000027 U 0.000027 U 0.000027 U 0.00014 U

0.005 1.5 1.11 1.18 1.15 1.15 1.21 3.160.0046 J 0.0221 0.0151 J 0.0301 0.0161 J 0.0181 J 0.0154 J 0.0882

0.0413 U 1.88 1.27 1.28 1.14 1.6 1.37 0.9890.00054 0.00042 J 0.00038 J 0.00055 0.0004 J 0.00039 J 0.00049 J 0.00043 J

0.0049 U 0.0049 U 0.0055 J 0.0062 J 0.0055 J 0.0075 J 0.0063 J 0.0062 J0.0379 0.0023 J 0.0012 J 0.0014 J 0.00076 J 0.002 J 0.0011 J 0.0017 J

0.000085 U 0.00037 J 0.00018 J 0.00018 J 0.00028 J 0.00023 J 0.00018 J 0.00022 J177 2.83 2.28 3.97 3.06 2.66 2.2 6.88

0.0022 U 0.062 0.0385 0.047 0.0407 0.0569 0.0462 0.03050.0039 J 0.0021 J 0.0016 U 0.002 J 0.0016 U 0.0016 U 0.0016 U 0.0022 J0.0019 0.0037 0.0028 0.0027 0.0031 0.0028 0.0025 0.0031

0.00056 U 0.0019 J 0.0015 J 0.0015 J 0.0015 J 0.0019 J 0.0011 J 0.0016 J7.11 0.241 0.186 0.229 0.212 0.184 0.169 0.526

0.606 0.009 0.0036 J 0.0049 J 0.0039 J 0.006 0.0039 J 0.00790.0046 0.00051 0.00035 J 0.00041 J 0.0004 J 0.00042 J 0.00036 J 0.000510.0014 0.00085 J 0.00096 J 0.00088 J 0.00089 J 0.00094 J 0.00089 J 0.00084 J

0.000073 U 0.000081 J 0.000073 U 0.000073 U 0.000073 U 0.000075 J 0.0001 J 0.000077 J0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000027 U

0.0041 J 0.344 0.311 0.264 0.32 0.288 0.289 0.2840.0193 J 0.0074 J 0.0048 J 0.0069 J 0.0049 J 0.0067 J 0.0048 J 0.0123 J

NA NA NA NA NA 1 U NA NANA NA NA NA NA 3.3 J NA NANA NA NA NA NA 0.1 U NA NA

NA NA NA NA NA 2 U NA NANA NA NA NA NA 1 U NA NA

2.5 7.9 7.7 7.2 7.9 7.5 7.5 7.27.4 9 8.9 8.6 8.8 8.9 9 8.4599 6.2 6 5.5 5.9 5.5 5.6 8.2

0.004 U 0.004 U 0.004 U 0.004 U 0.004 U 0.004 U 0.004 U 0.004 U1150 299 443 487 474 530 415 371

2.5 6330 5900 7080 6900 6600 6650 17100

1bWL006-090503WS01 1cOW001-090403WS01 1cOW002-090403WS01 1cOW003-090403WS01 1cOW004-090403WS01 1cOW005-090403WS01 1cOW006-090403WS01 1cWL003-090403WS011b 1c 1c 1c 1c 1c 1c 1c

9/5/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003 9/4/2003


TABLE 4-5


Sample No:IB:







2.02 2.04 0.252 0.239 149 J 156 J 148 J 34.70.0018 0.003 0.0041 0.00071 0.0078 J 0.0074 J 0.0092 J 0.00850.0142 0.0281 0.0088 J 0.0095 J 0.203 J 0.191 J 0.185 J 0.1270.0402 0.0249 0.0184 0.0197 0.0025 J 0.0027 J 0.0034 J 0.0027 J0.0015 0.0016 0.00035 J 0.00021 J 0.000085 UJ 0.000085 UJ 0.000085 UJ 0.000085 U

9.2 5.24 362 473 2.44 3.15 2.99 2.070.0044 J 0.0059 0.0022 U 0.0022 U 0.0022 UJ 0.0022 UJ 0.0022 UJ 0.0022 U0.0016 U 0.0016 U 0.0029 J 0.0016 J 0.0016 UJ 0.0016 UJ 0.0018 J 0.0016 U0.0285 J 0.0173 J 0.0119 0.0105 J 0.0083 J 0.0073 J 0.007 J 0.0248 J0.0104 0.0081 0.0263 0.0317 0.0078 J 0.008 J 0.0074 J 0.0067

12.8 4.16 2.11 1.39 0.067 J 0.116 0.0826 J 0.190.0972 0.0587 0.0461 0.106 0.0051 J 0.0056 J 0.0048 J 0.0102

0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 UJ 0.00016 UJ 0.00016 UJ 0.000340.0214 0.0278 0.0123 0.0111 0.0192 0.0185 0.018 0.00880.0085 H 0.006 H 0.0074 J 0.0027 H 0.04 J 0.0375 J 0.0335 J 0.0409 H0.0035 0.00092 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U

0.000027 U 0.000037 J 0.000038 J 0.000027 U 0.000057 J 0.00006 J 0.00011 J 0.000039 J0.0113 0.0132 0.0358 0.0082 0.263 J 0.0965 J 0.196 J 0.324 J

0.101 0.0524 0.0041 U 0.0482 0.0391 J 0.0233 J 0.0226 J 0.0251 J

1.72 1.71 0.19 J 0.678 149 J 145 J 144 J 33.20.0023 0.0016 0.0039 0.00065 0.008 J 0.0076 J 0.0076 J 0.00840.0116 0.0309 0.0062 J 0.0049 U 0.213 J 0.192 J 0.185 J 0.133

0.022 0.0221 0.0156 0.0189 0.0017 J 0.002 J 0.0019 J 0.0015 J0.0013 0.0012 0.0002 J 0.00017 J 0.000085 UJ 0.000085 UJ 0.000085 UJ 0.000085 U

5.09 3.43 405 463 2.33 2.8 3.11 1.850.0022 U 0.0043 J 0.0022 U 0.0022 U 0.0022 UJ 0.0022 UJ 0.0022 UJ 0.0022 U0.0024 J 0.0016 U 0.0036 J 0.0031 J 0.0016 UJ 0.0016 UJ 0.0017 J 0.0016 U0.0197 0.0176 0.0137 J 0.0107 0.0173 J 0.0173 J 0.0171 J 0.0242 J0.0057 0.0067 0.00068 J 0.0063 0.0068 J 0.0062 J 0.0062 J 0.0045 J

12 3.92 2.34 1.42 0.0274 J 0.046 J 0.0619 J 0.1140.0714 0.0348 0.048 0.108 0.004 J 0.0049 J 0.0058 J 0.00520.0194 0.0266 0.0129 0.0132 0.0186 0.0181 0.0179 0.0078

0.002 0.002 0.0065 H 0.005 0.0389 J 0.0359 J 0.0311 H 0.0344 H0.002 0.00075 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000074 J

0.000027 U 0.000027 U 0.000053 J 0.000027 U 0.000048 J 0.000044 J 0.000035 J 0.000057 J0.0083 0.0106 0.0112 0.0042 J 0.279 J 0.19 J 0.0968 J 0.340.0705 0.0271 0.0041 U 0.0237 0.0069 J 0.0088 J 0.0094 J 0.0119 J

NA NA NA NA NA NA NA 1 UNA NA NA NA NA NA NA 3 UNA NA NA NA NA NA NA 0.2 J

NA NA NA NA NA NA NA 32NA NA NA NA NA NA NA 1 U

283 302 9.2 7.8 19.5 18.2 17.5 30.38.8 9.3 8.1 7.4 11.4 10.9 10.6 10.1

88.3 41.8 3210 3550 1740 1700 1680 10400.004 U 0.004 U 9.8 J 5.1 0.014 0.0083 0.004 U 0.004 U2500 2330 5480 5700 6210 6080 5880 382014.1 26.9 21.3 6.5 6.1 7.4 9 23.8

3bWL005-091003WS01 3bWL006-091003WS01 3bWL009-090903WS01 3bWLSEP-091003WS01 4aOW001-090703WS01 4aOW002-090703WS01 4aOW003-090703WS01 4aOW004-090703WS013b 3b 3b 3b 4a 4a 4a 4a

9/10/2003 9/10/2003 9/9/2003 9/10/2003 9/7/2003 9/7/2003 9/7/2003 9/7/2003


TABLE 4-5


Sample No:IB:







3.07 4.56 7.01 6.89 7.51 6.95 7.58 2.870.0012 0.0011 0.0017 0.0013 0.0014 0.0014 0.0014 0.000910.0068 J 0.0122 0.176 0.157 0.155 0.16 0.164 0.0049 U0.0114 0.0111 0.0089 0.0094 0.0101 0.0094 0.0103 0.014

0.00014 J 0.000085 U 0.0018 0.002 0.0025 0.0019 0.002 0.00064162 156 2.03 2.16 2.16 2.18 2.34 430

0.0022 U 0.0022 U 0.0115 0.0115 0.011 0.012 0.0121 0.003 J0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U0.0078 J 0.0074 J 0.0123 0.0092 0.0063 U 0.0096 0.0097 0.0086 J0.0033 J 0.0039 J 0.0072 0.008 0.008 0.0073 0.008 0.0162

1.29 1.2 0.153 0.153 0.16 0.153 0.172 1.140.0225 0.0175 0.0219 0.0231 0.0265 0.0231 0.0254 0.042

0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U0.0045 0.0044 0.00083 0.00071 0.00076 0.00074 0.00082 0.0111

0.006 H 0.0064 H 0.0368 J 0.03 J 0.0321 H 0.0305 J 0.0316 J 0.0017 H0.000073 U 0.000073 U 0.00046 J 0.00037 J 0.00029 J 0.00038 J 0.00037 J 0.000073 U0.000038 J 0.00004 J 0.000037 J 0.000027 J 0.00003 J 0.000031 J 0.000036 J 0.000042 J

0.0185 J 0.0185 J 0.426 0.32 0.311 J 0.317 0.329 0.0036 J0.0256 J 0.0208 J 0.0126 J 0.0128 J 0.0256 J 0.0116 J 0.015 J 0.071 J

2.59 4.21 3.25 2.76 2.88 2.66 2.76 2.80.0012 0.0013 0.0018 0.0015 0.0013 0.0013 0.0015 0.000990.0077 J 0.0113 0.176 0.154 0.155 0.152 0.158 0.0049 U0.0101 0.0104 0.0026 J 0.0015 J 0.0026 H 0.0018 J 0.002 J 0.0127

0.000085 U 0.00011 J 0.00027 J 0.00038 J 0.00042 J 0.0003 J 0.00036 J 0.00056166 164 1.06 1.11 1.22 1.09 1.31 445

0.0022 U 0.0022 U 0.0047 J 0.0037 J 0.0035 J 0.0035 J 0.0032 J 0.0022 U0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0042 J0.0114 J 0.0114 J 0.0096 0.0075 0.0083 J 0.0076 0.0086 0.0151 J0.0011 J 0.00072 J 0.00085 J 0.00092 J 0.0012 J 0.001 J 0.0013 J 0.0084

1.29 1.23 0.0183 U 0.0183 U 0.0375 J 0.0183 U 0.0183 U 1.140.0145 0.0073 0.0049 J 0.0052 0.0045 J 0.0037 J 0.0043 J 0.04550.0042 0.0043 0.00036 J 0.00039 J 0.00034 J 0.00028 J 0.00034 J 0.01090.0058 H 0.0061 H 0.0347 0.029 0.0283 H 0.0282 0.0304 0.0014 H

0.000073 U 0.000073 U 0.000073 U 0.000092 J 0.0001 J 0.000073 U 0.00014 J 0.000073 U0.000044 J 0.000035 J 0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000027 U 0.000028 J

0.0177 0.0164 0.418 0.309 0.303 H 0.304 0.314 0.0019 J0.0111 J 0.0041 U 0.0067 J 0.0069 J 0.0228 0.0077 J 0.011 J 0.0666

NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA

9.8 10.5 43.5 40 39.7 40 41 18.48.5 8.8 10.2 10.1 10.2 10.1 10.2 5.8

2900 2820 192 179 178 180 186 38100.004 U 0.004 U 0.004 UJ 0.004 UJ 0.004 U 0.004 UJ 0.004 UJ 0.0994200 4400 1340 1250 1250 1250 1320 5940

7.5 9.4 157 86.5 97.3 93.4 170 9.8

4aOW005-090703WS01 4aOW006-090703WS01 4aOW007-090603WS01 4aOW008-090603WS01 4aOW008-090603WS01FD 4aOW009-090603WS01 4aOW010-090603WS01 4bWL004-090803WS014a 4a 4a 4a 4a 4a 4a 4b

9/7/2003 9/7/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003 9/6/2003 9/8/2003


TABLE 4-5


Sample No:IB:







2.97 8.01 27 87.8 61.2 14.9 10.8 0.9750.00091 0.0012 0.0011 0.00094 0.0008 0.002 0.0024 0.00078

0.006 J 0.0237 0.0338 0.0842 0.0805 0.0361 0.026 0.01970.0148 0.0072 0.0061 0.0058 0.01 0.0075 0.0074 0.0152

0.00068 0.000085 U 0.000086 J 0.000085 U 0.0004 J 0.00033 J 0.00031 J 0.00015 J434 176 124 11.1 11.2 131 109 210

0.0035 J 0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0023 J 0.0022 U0.0035 J 0.0037 J 0.0016 U 0.0016 U 0.0016 U 0.0029 J 0.0027 J 0.0016 U0.0115 0.0044 0.014 J 0.0119 J 0.0132 J 0.0087 J 0.0082 J 0.0099 J0.0157 0.0052 0.0036 J 0.0037 J 0.0418 0.0384 0.0231 0.0025 J

1.15 0.452 0.54 0.212 0.345 0.466 0.449 1.090.0424 0.0241 0.0151 0.0098 0.0054 0.0131 0.0073 0.0543

0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U 0.00016 U0.0111 0.0061 0.0055 0.0103 0.0041 0.0055 0.0042 0.0060.0015 H 0.0074 0.0042 H 0.0072 H 0.0043 H 0.016 H 0.0167 H 0.0031 H

0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000079 J0.000027 U 0.000027 U 0.000032 J 0.000029 J 0.000034 J 0.000029 J 0.000032 J 0.000035 J

0.0022 J 0.0396 0.0238 0.0741 0.047 0.0526 J 0.0486 J 0.00910.0825 J 0.0295 0.0048 J 0.0058 J 0.0085 J 0.0293 J 0.0515 J 0.0116 J

2.93 7.97 26.8 91.2 60.1 13 9.5 0.9010.00091 0.0011 0.0011 0.00093 0.00085 0.0021 0.002 0.00073

0.0049 U 0.0197 0.0285 0.0831 0.076 0.0322 0.0233 0.01690.0134 0.0062 0.0037 J 0.0036 J 0.0039 J 0.006 0.0062 0.0133

0.00059 0.00018 J 0.00014 J 0.000085 U 0.00022 J 0.0002 J 0.00022 J 0.00032 J440 185 103 10.8 11.2 138 115 216

0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0022 U 0.0022 U0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0016 U 0.0028 J 0.003 J 0.0016 U0.0136 J 0.0123 J 0.0113 J 0.0115 J 0.0113 J 0.0131 J 0.014 J 0.0104 J0.0094 0.0017 J 0.0022 J 0.001 J 0.008 0.0062 0.0026 J 0.0029 J

1.14 0.444 0.538 0.0646 J 0.258 0.462 0.458 1.120.0417 0.0243 0.0097 0.0022 J 0.0015 J 0.0123 0.0058 0.05270.0102 0.0066 0.0061 0.0107 0.0035 0.0055 0.0043 0.00750.0013 H 0.007 H 0.0045 H 0.0078 H 0.0043 H 0.0148 H 0.0168 H 0.0027 H

0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U 0.000073 U0.000038 J 0.000027 U 0.000051 J 0.000034 J 0.00004 J 0.000034 J 0.000032 J 0.000043 J

0.0018 J 0.0397 0.0219 0.0757 0.0465 0.0519 0.0485 0.00720.0683 0.0041 U 0.0042 J 0.0041 U 0.0041 U 0.0053 J 0.0041 U 0.007 J

NA NA NA 1.7 J NA NA NA NANA NA NA 9.6 NA NA NA NANA NA NA 0.9 NA NA NA NA

NA NA NA 2 U NA NA NA NANA NA NA 1 J NA NA NA NA

17.9 24.8 25.3 L 38.2 L 33.4 L 31.4 29.8 14.6 L5.8 10.4 11.1 11.4 10 9.3 9.1 8.3

3920 3640 2920 2360 2370 3160 3200 29200.11 0.73 0.14 0.064 0.013 0.043 0.011 0.295850 6030 5020 4360 4300 5040 5030 4610

10 5.7 11.4 5 19.1 27.5 19.1 2.7

4bWL004-090803WS01FD 4dOW001-090903WS01 4dOW002-090903WS01 4dOW003-090903WS01 4dOW004-090903WS01 4dOW005-090803WS01 4dOW006-090803WS01 4dWLSEP-090903WS014b 4d 4d 4d 4d 4d 4d 4d

9/8/2003 9/9/2003 9/9/2003 9/9/2003 9/9/2003 9/8/2003 9/8/2003 9/9/2003


TABLE 4-6

SUMMARY OF DETECTED CONSTITUENTS IN GROUNDWATERNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Well No:Sample No:

IB:Sample Date:

Metals UnitsArsenic (Total) ug/l 3 U 6.2 U 3.3 U 3.6 U 3.6 UCadmium (Total) ug/l 5 U 0.16 U 0.15 U 0.16 U 0.58 UCalcium (Total) ug/l 103000 J 122000 J 115000 J 195000 J 28800 JChromium (Total) ug/l 10 U 10 U 10 U 10 U 2.8 UIron (Total) ug/l 4570 J 11400 J 10400 J 68200 J 4860 JLead (Total) ug/l 3 U 3 U 2.4 U 3 U 2.5 UMagnesium (Total) ug/l 38500 J 33700 J 31100 J 67400 J 6150 JManganese (Total) ug/l 162 J 1030 J 489 J 1910 J 202 JMolybdenum (Total) ug/l 0.76 U 62.7 74.3 15.5 193Potassium (Total) ug/l 3760 J 6340 J 4730 J 9530 J 3270 JSelenium (Total) ug/l 5 U 2.8 U 1.2 U 5 U 2.2 USodium (Total) ug/l 26800 196000 160000 599000 604000Thallium (Total) ug/l

Arsenic (Dissolved) ug/l 3.2 U 3.5 U 2.7 U 2.7 U 2.3 UCadmium (Dissolved) ug/l 5 U 0.2 U 0.15 U 5 U 0.36 UCalcium (Dissolved) ug/l 98400 J 130000 J 118000 J 197000 J 28200 JIron (Dissolved) ug/l 4540 J 891 J 10300 J 63500 J 1080 JLead (Dissolved) ug/l 3 U 3 U 3 U 3 U 2.4 UMagnesium (Dissolved) ug/l 38300 J 34900 J 31800 J 68700 J 6060 JManganese (Dissolved) ug/l 146 J 1030 J 495 J 1950 J 105 JMolybdenum (Dissolved) ug/l 1.1 U 69.6 75.6 13 183Potassium (Dissolved) ug/l 3650 J 6780 J 4830 J 9620 J 3170 JSelenium (Dissolved) ug/l 2.6 U 3.3 U 3.2 U 2.7 U 1.6 USodium (Dissolved) ug/l 25800 196000 160000 605000 607000Thallium (Dissolved) ug/l 0.5 U 0.49 U 0.5 U 0.5 U 0.5 U

RadiochemistryGross Alpha pci/l 6.2 U 9.3 7.7 U 20 U 18 UGross Beta pci/l 7.9 12 U 13 U 21 U 13 UBismuth 214 pci/l NA NA NA NA 47Radium 226 pci/l 0.37 J 0.22 U 0.24 J 0.25 J 0.49 URadium 228 pci/l 1.35 0.79 U 0.7 U 1.12 3.3 U

Wet ChemistryChloride mg/l 23.2 54.3 56.8 35.5 27Total Cyanide ug/l 5 J 19.6 J 36.6 J 28.8 J 5 JCyanide Amenable to Chlorination ug/l 5 U 19.6 5 U 5 U 5 UFluoride mg/l 0.27 4 5.7 8.3 9.6Sulfate mg/l 91 324 291 1830 889Total Alkalinity mg/l 396 518 445 488 487Total Dissolved Solids mg/l 610 1120 1050 3230 2070Notes:ug/l - micrograms per liter or parts per billion.U - not detected; value shown is the reporting limit.J - estimated value due to detection below reporting limit.pci/l - picocuries per liter.mg/l - milligrams per liter or parts per million.

MW-1 MW-2

4eMW-1N-072704WG01 MW-2N-072704WG01 MW-2SN-072704WG01 MW-3N-072704WG01

MW-3Upchurch Well

4e

MW-4MW-4N-072704WG01

7/27/20043b 4e

7/27/2004 7/26/2004 7/27/2004 7/26/20044c

J:\East St. Louis RFS\RI\Tables\Table 4-6 Draft.xls

LL PL PI Test TypeShear Strength

(tsf)Failure Strain

(%)1aUP001 090603 S001 0-2 65 86.91aUP001 090603 S004 2-4 51 52 88.91aUP001 090603 S005 9-11 551aUP001 090603 S006 16-18 591aUP001 090603 S007 23-25 611aUP001 090603 S008 30-32 611aUP003 090603 S001 0-2 65 54 46 8 MH 54 98.2 2.00E-061aUP003 090603 S004 2-4 63 40 35 5 ML 641aUP008 090603 S001 0-2 29 NP 93.61aUP008 090603 S004 2-4 671aUP008 090603 S005 9-11 701aUP008 090603 S006 16-18 81 Qu 0.18 12.6 54 3.80E-071aUP008 090603 S007 28-30 68 61 43 18 CH 991aUP008 090603 S008 30-32 66 62 45 17 CH 99.61aUP018 090703 S001 0-2 28 261aUP018 090703 S004 2-4 32 NP 68.41aUP018 090703 S006 16-18 65 51 45 6 MH 62 81.11aUP018 090703 S007 25-27 68 39 34 5 ML 91.91aUP018 090703 S008 32-34 67 54 44 10 MH 56 92.31bUP001 091103 S001 0-2 52 51 17 24 MH 10.71bUP001 091103 S004 2-4 55 45 38 7 ML 12.51bUP001 091103 S005 9-11 36 NP 11.41bUP001 091103 S006 18-20 27 NP 23.51bUP001 091103 S007 23-25 51 NP 13.81bUP003 091003 S001 0-2 90 103 71 32 CH 51 99.11bUP003 091003 S004 2-4 67 81 55 26 CH 43 45.21bUP003 091003 S005 11-13 43 37 34 3 ML1bUP003 091003 S006 18-20 123 89 53 36 MH 96.71bUP003 091003 S007 23-25 97 112 84 28 MH 45 99.31bUP003 091003 S008 30-32 40 67 31 36 CH 83 96.61bUP005 091103 S001 0-2 59 66 58 8 MH 72 99 5.30E-071bUP005 091103 S004 2-4 37 48 39 9 CL 53.91bUP005 091103 S005 11-13 36 52 25 27 CH 541bUP005 091103 S006 18-20 70 54 44 10 MH 97.71bUP005 091103 S007 23-25 47 81 28 53 CH 82 96.21bUP005 091103 S008 30-32 37 50 27 23 CH 79 87.31bUP009 091003 S001 0-2 58 43 35 8 ML 67 90.81bUP009 091003 S004 2-4 62 49 37 13 ML 63 62 1.60E-061bUP009 091003 S005 9-11 68 53 47 6 MH 82.41bUP009 091003 S005 12-15 59 38 34 4 ML 44.81bUP009 091003 S006 18-20 75 61 47 15 MH 991bUP009 091003 S007 23-25 86 59 47 12 MH 37 80.71bUP009 091003 S008 30-32 36 32 22 10 CL 87.31cUP001 091003 S001 0-2 55 49 31 18 ML 66.51cUP001 091003 S004 2-4 41 32 31 1 ML 83.61cUP001 091003 S005 9-11 81 52 52 0 MH 47.81cUP001 091003 S006 16-18 42 37 34 3 ML 83.11cUP006 091003 S001 0-2 31 44 35 9 ML 96.71cUP006 091003 S004 2-4 70 49 42 7 ML 70 91.41cUP006 091003 S005 9-11 67 52 44 8 MH 57 83.9

Sample Number Depth (Feet)Percent

Moisture

Unified Soil Classification

System

TABLE 4-7

SUMMARY OF GEOTECHNICAL TESTING RESULTSNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Dry Unit Weight (pcf)

Passing #200 Sieve (%)

Hydraulic Conductivity

(cm/sec)

Atterberg Limits Compression Test

J:\East St. Louis RFS\RI\Tables\Table 4-7 8 Draft.xls 1 of 2

LL PL PI Test TypeShear Strength

(tsf)Failure Strain

(%)Sample Number Depth (Feet)Percent

Moisture

Unified Soil Classification

System

TABLE 4-7

SUMMARY OF GEOTECHNICAL TESTING RESULTSNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Dry Unit Weight (pcf)

Passing #200 Sieve (%)

Hydraulic Conductivity

(cm/sec)

Atterberg Limits Compression Test

1cUP006 091003 S006 16-18 72 66 45 21 MH 99.91cUP006 091003 S007 23-25 83 59 46 13 MH 97.21cUP013 091003 S001 0-2 52 45 33 12 ML 72 66.61cUP013 091003 S004 2-4 63 42 37 5 ML 97.71cUP013 091003 S005 9-11 55 62 84.11cUP013 091003 S006 16-18 50 40 39 1 ML 50.11cUP015 091103 S001 0-2 38 34 31 3 ML 87.8 1.10E-061cUP015 091103 S004 2-4 45 39 33 6 ML 911cUP015 091103 S005 9-11 61 43 40 3 ML Qu 0.07 12.2 54 98.41cUP015 091103 S006 16-18 64 45 41 4 ML 89.51cUP015 091103 S007 23-25 85 62 49 13 MH 51 94.12UP001 090603 S001 0-2 23 99.52UP001 090603 S004 2-4 13 21.22UP001 090603 S005 9-11 25 40.22UP001 090603 S005 10-12 13 41.22UP002 090603 S004 2-4 59 48 46 2 ML 97.12UP002 090603 S005 9-11 20 99.92UP003 091103 S005 9-11 22 902UP003 091103 S006 16-18 22 19.32UP004 091203 S001 0-2 21 492UP004 091203 S004 2-4 19 43.32UP004 091203 S006 16-18 23 522UP004 091203 S007 51 17.32UP004 091203 S008 30-32 43 39 37 2 ML 43.52UP005 090903 S001 0-2 49 NP 472UP005 090903 S004 2-4 58 97.92UP005 090903 S005 9-11 41 98.82UP005 090903 S006 11-13 32 62 25 37 CH Qu 0.76 3.2 85 902UP006 091203 S001 0-2 18 54.82UP007 091203 S001 0-2 29 NP 29.72UP007 091203 S004 2-4 41 43 43 0 ML 46.62UP007 091203 S005 9-11 37 73 25 48 CH 81 12.82UP008 090903 S001 0-2 23 36.92UP008 090903 S004 2-4 17 33.42UP008 090903 S005 9-11 32 69 26 43 CH Qu 0.72 6 91 98.52UP008 090903 S006 16-18 34 45 29 16 ML 88 104aUP010 090603 S001 0-2 54 NP 59 90.34awl004 090903 S005 9-11 74 63 45 18 CH 55 99.5Notes:Qu - unconfined compressive strength test (ASTM D2166)


TABLE 4-8

SUMMARY OF AGRONOMIC SAMPLE RESULTSNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Depth N S Ca Mg Na K B Zn Mn Cu Fe P N03-N S04-S CEC ESP pH Percent BulkBauxite Residue (Feet) ---------------------------------------------------------------------------------------------------------------- mg / kg -------------------------------------------------------------------------------------------- meq/100g % s.u. Moisture Density

1cUP 002 090703 S001 1-2 360 3737 163424 3066 27303 369 227 85 403 40 217521 2141 4 252 20.8 8.27 8.5 30.15 1.691cUP 018 090703 S015 9-11 253 4037 347727 12120 19382 1627 75 40 1083 109 91895 1325 4 504 43.9 4.69 9.8 35.98 1.261cUP 101 090703 S001 1-2 157 7855 148789 5100 80068 474 165 52 523 85 166943 1544 6 735 52.3 8.54 10.0 34.79 1.551cUP 005 090703 S001 0-1 125 8691 208709 7748 90151 522 238 70 711 41 235750 1976 2 651 66.3 5.53 9.8 34.98 1.631cUP 002 090703 S001 0-1 365 4422 151918 3091 34518 237 233 80 393 47 265025 2118 2 714 21.4 7.90 8.6 29.14 2.221cUP 010 090703 S001 0-1 111 7171 138881 3711 72811 374 231 66 399 46 233931 2287 12 1365 47.2 14.14 10.2 30.64 1.591cUP 016 090703 S001 0-1 195 8241 133373 3035 89334 444 269 60 415 53 253945 2470 12 336 63.9 11.77 10.3 31.93 1.821cUP 018 090703 S001 0-1 110 7907 163942 5063 80296 435 227 76 658 41 219073 2139 10 987 15.1 35.37 10.1 29.11 1.741cUP 018 090703 S001 1-2 180 8101 180028 4086 73126 439 223 60 497 59 212884 2172 4 798 40.6 9.68 9.9 37.55 1.561cUP 005 090703 S001 1-2 203 8568 175694 6319 82678 498 250 79 618 37 236803 2130 2 1176 46.3 7.85 9.7 33.23 1.581aUP 012 090703 S001 1-2 212 5250 311755 5762 76643 161 65 96 1064 40 70905 2217 2 441 26.9 7.92 9.1 26.66 1.461aUP 012 090703 S001 0-1 1443 7482 173553 4045 102583 638 127 288 797 28 69203 2490 8 1302 37.6 4.47 8.2 32.23 1.231cUP 016 090703 S001 1-2 193 8471 131659 3180 88140 457 234 132 426 63 240339 2449 12 1785 56.3 14.84 10.4 31.68 1.411aUP 003 090603 S001 1-2 143 5776 306822 5753 123141 228 87 92 1157 33 86992 2022 2 504 37.7 6.22 8.9 37.71 1.181aUP 003 090603 S001 0-1 458 4829 340526 5735 71448 227 74 81 1153 38 71508 2430 2 420 26.6 11.25 8.7 35.55 1.311aUP 002 090603 S001 1-2 743 14918 177445 3165 142715 518 126 167 892 41 80805 1981 2 2310 46.8 4.38 8.6 34.48 1.271aUP 002 090603 S001 1-2 216 6826 279905 4593 110574 341 102 97 1007 47 95092 1674 2 1775 41.6 5.95 9.3 33.55 1.381aUP 005 090603 S001 0-1 856 12144 257796 3030 86402 307 114 127 1166 30 95072 2726 4 882 32.1 4.97 8.4 27.19 1.511aUP 005 090603 S001 1-2 521 11648 216949 3888 119996 360 115 195 1165 30 90768 2113 0 1407 43.1 5.12 9.0 31.53 1.301aUP 008 090603 S001 0-1 170 7656 202297 5324 296698 483 96 120 868 48 90782 1458 4 588 74.9 10.72 10.3 29.45 1.501aUP 008 090603 S001 1-2 127 7608 211970 5213 294844 472 85 104 839 35 79434 1402 6 630 76.3 7.31 10.4 30.62 1.391aUP 008 090603 S005 9-11 137 14661 210576 4723 152699 522 189 78 1227 29 179455 2626 4 1953 72.8 7.08 10.2 34.98 1.281aUP 001 090603 S005 9-11 164 11321 198573 4386 133128 424 132 76 1000 34 120270 2560 0 1302 68.2 8.27 10.3 39.94 1.101aUP 010 090703 S001 0-1 530 6495 110898 1791 19437 449 132 138 1640 59 119848 789 0 777 16.7 9.43 8.4 18.59 1.981aUP 010 090703 S001 1-2 269 7738 126010 2158 43013 293 152 92 2179 46 143279 1125 0 1281 15.3 11.64 8.7 21.77 1.961aUP 007 090703 S001 0-1 155 14769 298201 6640 351724 747 136 97 1031 21 115398 2997 2 1785 44.6 22.34 10.3 35.44 1.531aUP 007 090703 S001 1-2 380 15059 296508 7583 368675 669 175 90 1026 21 165738 3222 0 546 46.4 15.43 10.3 33.02 1.281aUP 009 090703 S001 0-1 93 12196 341974 6896 154495 469 142 76 1151 24 131726 3416 2 1869 41.1 24.37 10.3 31.43 1.981aUP 006 090703 S001 0-1 52 12999 274348 8358 353077 567 156 103 1269 19 145457 3239 0 1449 43.1 15.86 10.4 39.19 1.051aUP 006 090703 S001 1-2 147 12563 204838 5375 333818 562 169 87 964 21 169159 2863 0 1995 43.6 11.71 10.3 36.70 1.161aUP 009 090703 S001 1-2 144 11796 289432 6612 159427 475 152 87 1043 24 152202 3175 0 1659 35.7 24.97 10.4 35.04 1.011aUP 014 090703 S001 0-1 182 7600 227468 5602 327365 633 91 191 928 22 73036 1470 26 651 38.0 22.31 10.6 30.67 1.371aUP 014 090703 S001 1-2 253 8239 282137 6266 362921 556 89 161 1084 50 76287 1744 12 735 43.0 15.16 10.6 33.20 1.111aUP 018 090703 S001 1-2 577 3969 281910 3726 16204 259 67 93 1024 54 73288 3209 0 588 12.5 10.02 8.4 25.96 1.401aUP 019 090603 S001 0-1 539 3603 281338 4338 14786 343 69 94 1042 44 67063 1824 0 504 10.8 10.44 8.4 19.85 1.631aUP 018 090703 S001 0-1 1122 4420 250504 3899 17000 504 85 170 920 50 93246 2336 0 546 13.5 8.67 8.1 23.23 1.521aUP 002 090703 S001 0-1 137 5948 338408 5468 138641 595 81 155 1017 42 75996 1719 2 567 36.8 15.88 10.5 34.07 1.501aUP 019 090703 S001 1-2 244 4084 302320 4222 24482 188 69 70 1052 46 74275 1952 0 420 11.2 12.60 8.4 25.25 1.661aUP 004 090703 S001 1-2 124 3241 182143 2817 8844 95 91 43 1241 43 107360 1204 0 231 5.7 22.88 8.6 15.83 2.301aUP 020 090703 S001 1-2 49 6094 362520 11964 109485 268 155 65 1115 24 201163 1961 2 503 28.2 15.81 10.2 38.76 1.161aUP 013 090703 S001 1-2 96 3325 294693 3793 33724 108 45 50 809 28 64431 1904 2 545 14.1 29.37 10.5 22.99 1.721aUP 004 090703 S001 0-1 168 5461 202186 2226 7458 66 96 64 1425 32 110335 1052 2 168 6.0 19.98 8.4 14.96 2.231aUP 020 090703 S001 0-1 50 7305 303803 5602 338745 382 71 96 1043 28 91398 1294 10 252 41.9 14.02 10.6 36.47 1.721aUP 016 090803 S001 0-1 293 134112 150888 914 7010 439 41 106 247 34 32483 612 2 798 7.5 13.41 7.5 6.93 2.301aUP 016 090803 S001 1-2 179 181464 154253 435 2588 494 22 84 124 44 13362 270 4 672 3.4 26.00 7.6 4.52 2.241aUP 017 090803 S001 0-1 154 7471 188680 4597 37697 147 140 55 1259 27 150612 1827 6 945 11.6 22.33 8.4 20.56 1.791aUP 017 090803 S001 1-2 88 8228 202892 3376 40324 138 99 53 1048 24 117649 1613 2 777 11.4 23.56 9.6 18.01 2.431aUP 015 090803 S001 0-1 1718 15653 158656 4611 136178 1202 187 545 1057 87 124250 2481 12 2562 32.6 6.41 8.2 33.71 1.261aUP 015 090803 S001 1-2 625 6885 243169 5331 144480 699 91 157 1000 37 72843 2606 4 735 33.7 7.67 8.7 35.59 1.211bUP 011 090903 S001 0-1 196 10682 139624 4122 110753 509 247 77 429 98 232903 2245 26 3044 39.0 59.43 10.3 35.30 2.021bUP 011 090903 S001 1-2 110 8278 164852 4358 82653 459 207 65 428 55 217124 2499 14 1617 34.9 35.04 10.1 32.70 1.661bUP 012 090803 S001 0-1 195 6719 171475 4228 69939 338 231 67 416 53 251788 2521 6 945 27.3 10.77 9.2 33.11 1.541bUP 012 090803 S001 1-2 160 4715 206944 4095 39334 205 160 49 478 45 176822 1640 4 504 18.1 15.39 9.3 29.76 1.651bUP 013 090803 S001 0-1 159 3278 218940 3392 23818 204 173 50 373 27 193676 2116 4 483 14.9 14.17 8.7 29.62 1.991bUP 013 090803 S001 1-2 119 2439 236933 3031 8960 64 137 38 301 25 164721 1572 2 210 9.1 21.23 8.9 24.09 1.76


TABLE 4-8



1cUP 020 090803 S001 0-1 249 194281 159669 248 1027 215 11 110 43 34 17806 224 2 546 2.4 38.96 7.7 3.67 2.271cUP 020 090803 S001 1-2 190 39311 184917 2087 36374 485 216 313 405 49 239098 2464 4 2100 24.6 4.63 7.7 31.02 2.231cUP 017 090803 S001 0-1 291 168617 155000 476 2782 319 40 319 90 73 57390 540 9 525 6.1 15.11 7.3 4.33 1.991cUP 017 090803 S001 1-2 67 6872 88004 439 2003 35 159 82 234 35 155311 754 4 756 5.5 15.92 7.7 16.06 2.484aWL 004 090903 S001 0-1 218 18693 201066 3590 279677 1045 131 184 860 36 78770 2281 10 2184 79.7 9.27 10.4 34.23 1.414aWL 004 090903 S001 0-1 178 18299 212312 3640 353465 1101 132 182 865 54 73164 2549 8 2247 87.7 7.52 10.4 29.29 1.484aWL 002 090903 S001 0-1 203 16701 216357 3488 307229 1517 122 182 783 73 59544 1754 8 1365 77.5 19.96 10.5 26.72 1.624aWL 002 090903 S001 1-2 152 21141 293373 3813 391573 1521 136 79 1174 37 83216 2611 6 840 90.9 9.65 10.4 35.77 1.711aUP 011 090903 S001 0-1 1197 6375 228839 4658 94645 474 110 367 896 74 95776 3095 8 546 29.8 8.26 8.5 28.10 1.571aUP 011 090903 S001 1-2 659 4827 321352 5196 77152 198 70 172 948 53 66290 2334 6 336 21.5 13.45 8.9 28.25 1.781bUP 011 090903 S005 9-11 141 26811 279897 6387 328746 2016 152 79 1098 18 113480 2429 0 1722 75.1 13.89 10.3 38.33 1.361cUP 004 090903 S001 1-2 1205 5331 173037 4140 35074 968 198 121 476 66 201834 1983 10 609 25.2 5.49 7.8 25.35 1.541cUP 003 090903 S001 1-2 72 2736 108820 1052 4712 49 140 53 320 25 150481 809 0 651 6.9 13.15 7.6 23.05 2.051cUP 004 090903 S001 0-1 1205 5063 174313 4077 34054 939 184 130 475 62 195456 1906 4 777 22.7 5.68 7.9 25.87 1.711cUP 006 091003 S001 0-1 146 3261 222096 3203 28292 136 146 52 420 44 159004 1549 2 609 16.2 27.17 9.9 18.07 1.811cUP 006 091003 S001 1-2 87 2999 240496 3017 24514 109 132 46 396 34 152944 1521 2 189 14.5 27.07 9.8 21.21 2.161cUP 013 091003 S001 1-2 118 9166 172019 5477 98827 390 221 59 586 53 228417 2273 7 966 38.0 12.75 9.9 30.22 1.841bUP 009 090903 S001 0-1 117 8731 219973 4908 81265 419 197 58 517 35 213599 2254 10 798 35.1 18.60 9.9 31.31 1.701bUP 009 090903 S001 1-2 169 9062 201033 11619 95622 561 197 219 625 161 205059 2085 4 987 47.3 17.42 9.9 35.67 1.581cUP 013 091003 S001 0-1 111 7383 140632 4132 81367 347 212 63 419 38 226353 2102 12 1029 26.4 22.36 9.9 30.96 1.801bUP 009 091003 S005 9-11 122 15600 310302 4814 252703 305 125 53 879 20 75882 2064 12 1239 31.2 25.83 9.9 34.95 1.551bUP 014 090903 S001 0-1 76 206757 148590 187 2442 245 4 32 23 18 2817 53 16 462 3.2 41.75 7.8 2.40 2.161bUP 014 090903 S001 1-2 145 3937 189060 3315 20965 499 230 72 7359 43 247631 1753 0 672 13.1 9.01 8.1 32.49 1.791cUP 007 090903 S001 0-1 120 4724 85401 1693 3959 28 153 53 156 24 160069 779 3 1197 6.9 14.82 7.7 19.23 2.391cUP 003 090903 S001 0-1 744 182642 166531 507 1335 367 41 120 75 40 56773 498 2 714 4.9 16.91 7.3 4.97 2.221cUP 007 090903 S001 1-2 449 7288 182431 3614 32478 123 176 146 370 37 206186 1885 2 252 13.2 9.27 7.8 24.77 1.631cUP 014 090903 S001 1-2 67 12140 93935 1022 2453 42 133 61 200 33 143998 748 5 399 6.8 13.55 7.7 17.58 2.081cUP 014 090903 S001 0-1 1031 55659 217200 2600 12729 752 147 288 314 82 164627 1683 4 420 11.1 7.57 7.6 7.36 2.111cUP 001 091003 S001 1-2 397 4545 198745 3377 29810 201 222 91 395 28 238285 2132 2 441 15.3 9.22 8.2 30.86 1.721cUP 013 091003 S005 9-11 294 9267 206637 7019 91897 522 199 78 657 70 209093 2437 0 315 25.9 16.94 9.8 37.16 1.341cUP 006 091003 S005 9-11 517 8919 208469 7850 94247 613 214 91 603 113 230379 1785 0 399 28.3 17.94 9.9 41.87 1.111cUP 001 091003 S001 0-1 360 3764 192084 2840 24090 123 183 85 372 31 195203 1749 2 357 13.8 9.25 8.4 27.61 1.491cUP 003 091003 S001 0-1 747 6014 272437 17613 42432 530 221 821 810 99 255051 2868 0 420 24.7 6.35 8.4 40.90 1.601bUP 007 091003 S001 0-1 231 8612 269967 12373 80134 512 204 252 639 81 219585 2559 0 336 22.4 18.73 9.5 36.49 1.321aUP 003 091003 S001 1-2 326 6137 263209 14683 43790 402 177 1181 717 157 209030 2921 0 231 21.0 11.03 8.7 39.61 1.251bUP 007 091103 S001 1-2 140 13344 182174 5597 138445 681 241 103 579 43 252134 1990 7 1617 23.8 17.46 9.6 35.17 1.341bUP 008 091003 S001 1-2 953 5465 184549 3907 40816 418 223 73 470 38 236211 2323 10 210 16.5 8.98 8.2 30.85 1.531bUP 008 091003 S001 0-1 120 817 113175 1158 2995 39 152 44 206 30 156239 677 14 294 7.1 12.68 8.2 17.53 2.451cUP 009 091003 S001 1-2 171 5494 254646 5439 50378 269 161 71 585 55 176697 1795 5 252 14.9 29.22 9.7 28.96 2.151cUP 012 091003 S001 0-1 145 3512 198988 3379 32972 169 162 67 417 54 172670 1664 0 189 11.6 51.68 10.0 24.33 1.951cUP 009 091003 S001 0-1 243 5642 236068 5342 52440 314 158 73 594 55 176398 1818 4 210 14.8 32.05 9.8 27.65 1.761cUP 012 091003 S001 1-2 86 3358 197933 3258 31021 165 158 68 401 58 169763 1636 0 462 11.3 51.69 10.1 23.75 2.241bUP 003 091003 S005 9-11 98 12536 162419 2415 27998 152 104 53 1732 33 111125 876 0 441 12.5 33.10 9.4 16.50 2.301cUP 001 091003 S005 9-11 1638 1322 66093 10529 32643 834 29 108 682 1087 27109 0 0 651 10.1 60.47 9.9 32.91 1.321bUP 005 091103 S001 1-2 563 9070 214200 7894 86535 601 215 134 609 103 227945 2154 0 168 20.3 13.29 9.1 34.91 1.451bUP 005 091103 S005 9-11 94 9092 287978 4147 56626 167 84 49 1073 34 68183 1877 4 987 19.4 26.08 10.1 28.06 1.821bUP 005 091103 S011 0-1 743 4999 211103 6603 35359 417 168 183 471 81 180054 1977 4 441 24.4 8.61 8.5 31.18 1.581cUP 008 091103 S001 1-2 117 794 111491 1288 3179 12 157 40 183 39 155318 787 4 210 6.7 14.30 8.3 17.58 2.261bUP 002 091103 S001 1-2 107 674 72979 944 1877 17 141 84 410 50 148278 611 4 462 6.8 11.29 9.5 13.91 2.571bUP 001 091103 S001 0-1 155 501 71034 730 1384 3 142 46 345 39 151014 643 0 294 6.9 11.65 8.4 14.13 2.621bUP 002 091103 S001 0-1 500 541 61080 753 1528 97 169 80 258 55 156391 612 4 399 7.6 13.34 8.1 12.70 2.361bUP 006 091103 S001 0-1 210 9267 195734 9340 96414 486 198 142 539 71 207535 1923 0 189 30.1 15.72 9.8 35.57 1.481bUP 001 091103 S001 9-11 217 4195 232944 4202 21262 118 164 44 446 37 171537 1350 0 504 11.0 23.38 9.3 29.79 2.041bUP 001 091103 S001 1-2 160 2257 135533 2643 14064 141 198 54 839 27 210683 1471 0 357 12.1 8.86 8.4 29.20 1.871bUP 006 091103 S001 1-2 113 10753 260700 4562 109075 370 98 128 763 24 89438 2492 3 231 30.3 20.39 9.7 11.93 2.25


TABLE 4-8



1bUP 010 091103 S001 0-1 218 3985 180485 3164 32371 198 176 116 360 67 189214 1733 0 588 15.0 18.33 9.1 11.31 2.031cUP 015 091103 S001 0-1 113 11778 194203 4308 134591 371 157 50 618 96 145991 1981 0 672 40.4 24.09 10.3 36.74 1.741cUP 008 091103 S001 0-1 634 5151 219145 4691 38257 307 224 66 500 39 253090 2299 4 420 16.9 7.86 8.4 27.60 1.871cUP 015 091103 S001 1-2 97 4509 164666 3225 47605 142 198 50 550 32 214399 1871 2 462 19.0 26.44 10.1 41.49 1.631cUP 011 091103 S001 0-1 203 729 96707 883 2599 26 155 39 196 28 166587 749 0 525 8.0 13.84 8.3 31.83 1.941cUP 018 091103 S001 1-2 109 7905 150893 4022 84457 353 193 268 407 61 208429 1452 2 504 22.5 22.15 9.9 27.65 2.061cUP 018 091103 S001 0-1 2276 12628 186659 3866 34140 2039 234 264 454 65 244625 2421 2 546 21.9 6.28 7.8 16.73 1.821cUP 015 091103 S001 0-1 237 4786 152457 2915 52754 168 204 54 515 28 225862 1785 4 168 15.0 39.90 10.2 34.76 1.741cUP 011 091103 S001 1-2 77 3659 209754 4426 3696 40 151 36 508 32 158020 1164 4 252 6.2 16.81 9.0 20.00 2.211bUP 004 091103 S001 1-2 284 3272 190182 10370 22520 461 167 523 554 113 204561 2004 14 441 20.8 9.13 8.5 28.13 1.841bUP 004 091103 S001 0-1 738 3385 167527 6063 21612 518 186 384 426 98 207340 1829 0 1134 19.1 5.75 8.3 18.37 2.091bUP 010 091103 S001 1-2 184 6406 141613 3765 68030 320 194 59 409 40 231199 1850 0 903 20.8 19.42 9.5 36.94 1.65

Gypsum Residue2 UP 001 090603 S001 1-2 27 205755 207853 36 884 110 381 35 7 22 385 15 7.2 11.22 2.232 UP 001 090603 S001 0-1 355 201406 170344 257 585 634 234 200 85 81 9755 183 6.8 10.22 2.112 UP 002 090703 S001 0-1 243 202989 147900 75 51 163 7 61 23 34 2168 54 6.4 12.22 2.002 UP 002 090703 S001 1-2 27 195039 217129 5 50 55 18 24 0 17 145 3 6.1 12.9 1.832 UP 005 090903 S001 0-1 249 161874 172439 995 1566 796 26 262 164 202 14997 237 7.7 1.38 2.092 UP 005 090903 S001 1-2 173 156871 163761 361 625 358 13 122 72 156 11319 119 7.4 4.61 2.172 UP 008 090903 S001 0-1 214 1478 62852 838 1944 39 166 40 462 55 185068 657 7.9 17.82 2.332 UP 008 090903 S001 9-11 284 1336 5368 4701 1293 2618 22 121 405 76 25829 1184 5.9 21.31 1.872 UP 008 090903 S001 1-2 26 188578 167698 163 1400 353 1 24 14 18 1052 26 6.9 2.12 2.412 UP 003 091103 S001 1-2 153 117692 139266 410 1111 78 60 324 122 74 85252 434 7.6 30.01 1.552 UP 003 091103 S001 0-1 150 126608 155545 275 718 59 44 216 95 65 62142 324 7.7 37.9 1.462 UP 006 091203 S001 1-2 74 150813 167824 514 3435 966 13 38 55 36 12740 113 8.8 7.81 1.872 UP 006 091203 S001 0-1 80 142426 165324 919 4998 1235 27 69 89 47 22925 235 9.1 6.62 2.072 UP 004 091203 S001 0-1 191 182176 154858 60 342 174 189 31 10 21 1890 51 7.5 1.33 2.122 UP 004 091203 S001 0-1 27 166328 195768 9 213 74 179 20 3 15 352 6 7.0 2.89 2.062 UP 007 091203 S001 0-1 323 97596 159669 1332 1064 492 50 448 221 380 17162 253 7.7 6.06 1.892 UP 007 091203 S001 1-2 278 86719 162056 1445 1344 411 52 454 281 400 20222 284 7.7 9.77 2.19Notes:mg/kg - milligrams per kilogram or parts oer million.meq/100g - milliequivalents per 100 grams.s.u. - A104standard units of pH.


TABLE 4-9

SUMMARY OF PHASE 2 SURFACE SOIL SAMPLESNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample Number:IB:


Metals UnitsCadmium mg/kg 6.6 J 0.75 J 1.9 J 7.6 J 4.3 J 4.9 2.3Chromium, Total mg/kg 160 11.4 28.5 216 80 61.4 J 79.2 JLead mg/kg 544 803 1030 630 1360 73.7 105Selenium mg/kg 5.1 0.43 U 1.3 4.1 1.6 5.7 2.1Vanadium mg/kg 499 19.6 70.9 631 167 318 125Zinc mg/kg 85.1 49.8 157 168 307 114 J 107 J

General ChemistryCyanide mg/kg 0.58 U 0.7 2.5 0.59 U 5.9 0.52 U 9.7Fluoride* mg/kg 2.7 4.2 4.5 4.7 3.2 3.5 14.6pH pH units 7.7 7.1 7.8 7.6 7.7 8.1 8.5Solids, Percent % 84.9 82.9 76.8 85.1 89.2 93.5 68.2

0 - 6 0 - 6 0 - 6

02SU004-100404SO0102SU001-100404SO01 02SU002-100404SO01 02SU003-100404SO0102 02 02

02SU005-100404SO01 1ASU001-100604SO01 1ASU002-100604SO0102 02 1a 1a

0 - 6 0 - 6 0 - 6 0 - 610/4/2004 10/4/2004 10/4/2004 10/4/2004 10/4/2004 10/6/2004 10/6/2004

mg/kg - milligrams per kilogram or parts per million.Notes:

Confirmation of Phase 2 fluoride values will occur as a Feasibiltiy Study data need.*Comparison with Phase 1 soil fluoride values indicate that the Phase 2 fluoride values are of questionnable accuracy and should not be used. J - estimated value due to detection below reporting limit.U - not detected; value shown is the detection unit.

J:\East St. Louis RFS\RI\Tables\Table 4-9 10 11 Draft.xls 1 of 5

TABLE 4-9


Sample Number:IB:


Metals UnitsCadmium mg/kgChromium, Total mg/kgLead mg/kgSelenium mg/kgVanadium mg/kgZinc mg/kg

General ChemistryCyanide mg/kgFluoride* mg/kgpH pH unitsSolids, Percent %

2.6 2.9 10.3 J 5 J 10.7 J 6 J 5.3 J33.3 J 52.3 J 1900 387 745 716 73365.3 114 188 3650 110 85.8 88.5

2.7 1.5 3.6 4.1 5.4 0.55 U 0.53 U161 151 1010 692 1270 1090 642125 J 151 J 442 281 756 36.6 17.9

4.2 2.1 0.92 U 0.8 U 0.56 U 0.62 U 0.7 U5.2 4.5 12.4 33.8 6.5 20.1 19.8

8 7.6 6 6.2 7.8 8.7 9.286.3 89.8 51.7 59.4 87.7 78 70.6

1ASU003-100604SO01 1ASU004-100604SO01 1BSU001-100504SO01 1BSU002-100504SO01 1BSU003-100504SO01 1BSU004-100504SO01 1BSU005-100504SO011a 1a 1b 1b 1b 1b 1b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 610/6/2004 10/6/2004 10/5/2004 10/5/2004 10/5/2004 10/5/2004 10/5/2004

*Comparison with Phase 1 soil fluoride values indicate that the Phase 2 fluoride values are of questionnable accuracy and should not be used. Confirmation of Phase 2 fluoride values will occur as a Feasibiltiy Study data need.

Notes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection unit.J - estimated value due to detection below reporting limit.


TABLE 4-9


Sample Number:IB:




6.5 J 8.9 J 6.8 J 5.5 J 7.2 J 7.1 J 7.2 J893 1080 851 586 689 1030 1090102 109 90.4 1040 66.6 128 95.6

0.56 U 3.6 0.53 U 2.5 2.6 3.2 2.9895 1110 884 676 936 870 951

42.9 52.9 27.4 69.4 13.5 22.7 35.7

4.3 0.65 U 0.66 U 0.57 U 0.61 U 0.73 U 0.77 U9 1.5 8 1.7 2.8 3 14.8

8.3 8 8.8 7.7 8.5 8.5 8.476.3 76.1 74.6 85.5 75.5 68 65.3

1BSU006-100504SO01 1CSU001-100504SO01 1CSU002-100504SO01 1CSU003-100404SO01 1CSU004-100404SO01 1CSU005-100404SO01 1CSU006-100404SO011b 1c 1c 1c 1c 1c 1c

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 610/4/2004 10/4/200410/5/2004 10/4/2004 10/4/200410/5/2004 10/5/2004

Notes:mg/kg - milligrams per kilogram or parts per million.U - not detected; value shown is the detection unit.J - estimated value due to detection below reporting limit.*Comparison with Phase 1 soil fluoride values indicate that the Phase 2 fluoride values are of questionnable accuracy and should not be used. Confirmation of Phase 2 fluoride values will occur as a Feasibiltiy Study data need.


TABLE 4-9


Sample Number:IB:




2.3 4.8 J 8.3 0.66 0.65 2 3.4413 J 37.5 412 J 14 J 12.9 J 37.3 J 140 J

89.2 160 1110 13.6 12.8 425 88.61.6 1.9 1.5 0.83 1 1.2 1.6381 51.2 171 26 24.2 57.7 247

33.1 J 338 636 J 60.5 J 57.9 J 271 J 304 J

0.77 U 0.57 U 0.97 0.53 U 0.54 U 0.7 0.57 U14.4 5.6 5.2 1.6 1.7 4 23.1

8.8 8.1 8 8 8.1 7.5 8.261.5 86.2 89.5 91.2 91.4 91 84.9

3BSU001-100604SO01 3BSU002-100504SO01 3BSU003-100704SO01 3BSU004-100704SO01 3BSU004-100704SO01FD 3BSU005-100704SO01 3BSU006-100604SO013b 3b 3b 3b 3b 3b 3b

0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 6 0 - 610/7/2004 10/7/2004 10/7/2004 10/6/200410/7/200410/6/2004 10/5/2004




TABLE 4-9


Sample Number:IB:




4.1 2.2 10177 J 351 J 201 J

70.8 89.4 7203.1 2.1 17227 344 898252 J 38.5 J 1290 J

0.55 0.94 53.23.4 10 9.5

8 8 791.8 62.4 71

3BSU007-100604SO01 3BSU008-100604SO01 3BSU009-100604SO013b 3b 3b

0 - 6 0 - 6 0 - 610/6/2004 10/6/200410/6/2004




TABLE 4-10

SUMMARY OF PHASE 2 VEGETATION SAMPLESNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:


Cadmium mg/kg 0.17 B 0.5 0.14 B 0.17 B 0.95 0.24 B 0.3 BChromium, Total mg/kg 1 0.77 B 0.7 B 1.5 2.6 1 1.8Lead mg/kg 5.9 L 26.5 L 8.2 L 15.4 L 42.3 L 1.7 1.6Selenium mg/kg 1.3 1.1 1.7 1.6 1.2 1.7 L 1.4 LVanadium mg/kg 1.7 B 0.5 B 0.42 B 2.2 B 3.1 B 0.93 B 0.53 BZinc mg/kg 53.2 62.6 42.1 98.8 57.7 44.5 53

General ChemistryCyanide mg/kg 0.5 UJ 0.48 UJ 0.49 UJ 0.94 L 0.51 UJ 0.49 UJ 0.5 UJFluoride* mg/kg 1060 306 514 272 418 1340 1820Solids, Percent % 95 93.8 94.1 94.1 95.2 95.2 94.4

*Based on questionable accuracy of Phase 2 soil fluoride values, these vegetation fluoride concentrations may also be questionable. Confirmation of Phase 2 vegetation samples will occur as a Feasibility Study data need.

02VG001-100404TP01 02VG002-100404TP01 02VG003-100404TP01 02VG004-100404TP01 02VG005-100404TP01 1AVG001-100604TP01 1AVG002-100604TP0102 02 02 02 02 1a 1a

10/4/2004 10/4/2004 10/4/2004 10/4/2004 10/4/2004 10/6/2004 10/6/2004


TABLE 4-10


Sample No:IB:


Cadmium mg/kgChromium, Total mg/kgLead mg/kgSelenium mg/kgVanadium mg/kgZinc mg/kg

General ChemistryCyanide mg/kgFluoride* mg/kgSolids, Percent %

0.17 B 0.14 B 0.25 B 1.7 0.12 B 0.17 B 0.09 B0.75 B 3.9 0.48 B 0.61 B 2.3 3.1 0.82 B

1.2 1.7 0.89 41.5 2.7 2.7 11.6 L 1.5 L 1.3 L 1.5 L 1.3 L 1.3 L 1.2 L

0.51 B 0.63 B 0.39 U 0.41 B 1.9 B 3.3 B 0.58 B56.1 63.8 71.8 234 57.1 81.1 42.5

0.49 UJ 0.48 UJ 0.49 UJ 0.49 UJ 0.49 UJ 0.5 UJ 0.49 UJ1430 2050 437 296 1250 975 149093.2 94.3 96 94.8 95 94.8 94.7

(1) Based on questionable accuracy of Phase 2 soil fluoride values, these vegetation fluoride concentrations may also be questionable. Confirmation of Phase 2 vegetation samples will occur as a Feasibility Study data need.

1AVG003-100604TP01 1AVG004-100604TP01 1BVG001-100504TP01 1BVG002-100504TP01 1BVG003-100504TP01 1BVG003-100504TP01FD 1BVG004-100504TP011a 1a 1b 1b 1b 1b 1b

10/6/2004 10/6/2004 10/5/2004 10/5/2004 10/5/2004 10/5/2004 10/5/2004


TABLE 4-10


Sample No:IB:




0.049 U 0.16 B 0.3 B 0.086 B 0.29 B 0.17 B 0.048 U0.85 B 0.84 B 4.2 0.63 B 3.5 5 0.77 B0.72 1.6 2.4 0.71 3.6 1.7 0.74

1.8 L 1.6 L 1.4 L 1.3 L 1.2 L 1.3 L 1.7 L0.45 B 0.4 U 3.8 B 0.39 U 3.7 B 5.5 0.61 B24.5 47.6 54.7 30.1 58.7 33.5 29.4

0.47 UJ 0.49 UJ 0.48 UJ 0.48 UJ 0.49 UJ 0.46 UJ 0.5 UJ423 1290 1550 681 1220 598 867

95.6 94.7 93.9 94.4 93.6 93.9 95.3(1) Based on questionable accuracy of Phase 2 soil fluoride values, these vegetation fluoride concentrations may also be questionable. Confirmation of Phase 2 vegetation samples will occur as a Feasibility Study data need.

1BVG005-100504TP01 1BVG006-100504TP01 1CVG001-100504TP01 1CVG002-100504TP01 1CVG003-100404TP01 1CVG004-100404TP01 1CVG005-100404TP011b 1b 1c 1c 1c 1c 1c

10/5/2004 10/5/2004 10/5/2004 10/5/2004 10/4/2004 10/4/2004 10/4/2004


TABLE 4-10


Sample No:IB:




0.05 U 0.13 B 0.31 B 0.21 B 0.21 B 0.28 B 0.24 B0.54 B 0.58 B 0.49 B 0.42 B 0.79 B 0.57 B 1.70.68 1.3 1.3 1.6 1.8 L 1.7 L 0.89 L

1.3 L 2 L 1.9 L 1.3 L 1.5 1.2 1.20.4 U 0.4 U 0.39 U 0.4 U 0.29 U 0.33 B 0.41 B

30.6 40.6 51.4 41.2 39.5 46 39.1

0.75 L 0.47 UJ 0.5 UJ 0.49 UJ 0.5 UJ 0.49 UJ 0.5 UJ203 1270 731 994 840 903 1030

98.4 93.1 93 93.1 94.9 94.9 93.1(1) Based on questionable accuracy of Phase 2 soil fluoride values, these vegetation fluoride concentrations may also be questionable. Confirmation of Phase 2 vegetation samples will occur as a Feasibility Study data need.

1CVG006-100404TP01 3BVG001-100604TP01 3BVG002-100504TP01 3BVG003-100704TP01 3BVG004-100704TP01 3BVG005-100704TP01 3BVG006-100604TP011c 3b 3b 3b 3b 3b 3b

10/4/2004 10/6/2004 10/5/2004 10/7/2004 10/7/2004 10/7/2004 10/6/2004


TABLE 4-10


Sample No:IB:




0.22 B 0.34 B 0.16 B 0.530.61 B 0.54 B 0.62 B 0.56 B

1 L 1.2 L 1.7 L 1.5 L1.4 1.4 2 1.1

0.37 B 0.29 B 0.46 B 0.39 B39 39.4 23.7 94.5

0.5 UJ 0.49 UJ 0.49 UJ 0.49 UJ906 979 408 1160

92.7 94 94.8 93.4(1) Based on questionable accuracy of Phase 2 soil fluoride values, these vegetation fluoride concentrations may also be questionable. Confirmation of Phase 2 vegetation samples will occur as a Feasibility Study data need.

3BVG006-100604TP01FD 3BVG007-100604TP01 3BVG008-100604TP01 3BVG009-100604TP013b 3b 3b 3b

10/6/200410/6/2004 10/6/2004 10/6/2004


TABLE 4-11

SUMMARY OF PHASE 2 INVERTEBRATE SAMPLESNORTH ALCOA SITE, EAST ST. LOUIS, ILLINOIS

Sample No:IB:

Sample Date:Metals Unit

Cadmium mg/kg 0.041 B 2.2 0.23 B 1.1 B 1.7 0.59 B 0.33 BChromium, Total mg/kg 13.3 76.6 14.8 241 126 39.1 32.1Lead mg/kg 0.27 B 47.5 3.1 119 260 1.5 0.18 BSelenium mg/kg 0.19 B 0.98 B 0.27 B 0.43 U 0.47 B 0.45 B 0.23 BVanadium mg/kg 0.24 U 0.077 U 0.073 U 10.1 22.2 0.61 UJ 0.12 UJZinc mg/kg 60.7 174 67.5 125 195 110 52.4

General ChemistryCyanide mg/kg 1.2 U NA 2.1 NA NA 10.5 L 1.2 UJFluoride mg/kg 14.7 J NA 8.5 UJ NA NA NA 98.4 JSolids, Percent % NA NA 100 NA NA NA NANotes:B - Estimated value due to detection below reporting limit.U - Not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.NA - Not analyzed

02IV001-100404TA0102

10/4/2004

02IV002-100404TA01 02IV003-100404TA01 02IV004-100404TA01 02IV005-100404TA01 1AIV001-100604TA01 1AIV002-100604TA0102 02 02 02 1a 1a

10/4/2004 10/4/2004 10/4/2004 10/4/2004 10/6/2004 10/6/2004


TABLE 4-11


Sample No:IB:



General ChemistryCyanide mg/kgFluoride mg/kgSolids, Percent %Notes:B - Estimated value due to detection below reporting limit.U - Not detected; value shown is the detection limit.J - estimated value due to detection below reporting limit.NA - Not analyzed

0.17 B 0.42 B 0.51 0.3 B 0.068 B 0.24 B 0.044 B30.8 67 24.1 46.2 27.7 56.3 18.30.85 7.3 34.4 3.9 0.25 B 0.42 B 2.40.33 B 0.43 B 0.49 B 0.43 B 0.27 B 0.28 B 0.35 B

1.3 J 21.6 2.5 10 0.44 U 0.42 U 0.22 U97.4 93.2 87.4 65.6 59.6 70.7 55.8

4.8 L 3.2 L 2.1 L 5 UJ 2.3 L 1.7 UJ 1.2 UJ99.7 J 73.4 J 10 UJ NA 31.4 J NA 9.1 UJ69.2 NA NA NA NA NA 100

1AIV003-100604TA01 1BIV001-100504TA01 1BIV002-100504TA01 1BIV003-100504TA01 1BIV004-100504TA01 1BIV004-100704TA01 1BIV005-100504TA011a 1b 1b 1b 1b 1b 1b

10/6/2004 10/5/2004 10/5/2004 10/5/2004 10/5/2004 10/7/2004 10/5/2004


TABLE 4-11


Sample No:IB:




0.04 U 0.92 B 0.66 B 0.36 B 0.095 B 0.22 B 1.4 B40.7 191 52.7 56.1 38.3 18.2 J 102 J0.46 B 11 1.1 5.5 1.1 0.52 0.99 B0.29 B 0.79 B 0.5 B 0.52 B 0.63 B 1.1 0.57 B

1.3 U 20.7 1.6 33.2 7.1 0.024 U 0.096 U79 138 161 70.9 47.8 67.8 128

1.5 UJ NA NA 1.2 UJ 2 UJ 2.9 L NANA NA NA 10 UJ NA 33.9 UJ NANA NA NA NA NA NA NA

1BIV006-100504TA01 1CIV003-100404TA01 1CIV004-100404TA01 1CIV005-100404TA01 1CIV006-100404TA01 3BIV001-100604TA01 3BIV002-100504TA011b 1c 1c 1c 1c 3b 3b

10/5/200410/5/2004 10/4/2004 10/4/2004 10/5/2004 10/4/2004 10/6/2004


TABLE 4-11


Sample No:IB:




0.17 B 0.48 B 0.26 B 0.26 B 1.1 0.3 B 1.315 J 14.4 J 13.9 J 17.1 J 21.3 J 18.1 J 30.5 J

1.8 0.38 B 1.4 1.2 0.42 B 0.73 2.90.18 B 0.34 B 0.18 B 0.56 B 0.61 0.85 0.46 B0.15 U 0.025 U 0.051 U 0.2 U 0.12 U 0.025 U 1.7 U

53 78.9 83.3 76.3 117 68.3 113

1.2 UJ 1.2 UJ 1.2 UJ 3.6 U 3.8 1.6 1.2 U210 J 15.4 UJ 9.1 UJ NA 8.7 UJ 8.7 UJ 61 JNA NA NA NA 95 80.8 NA

3BIV003-100704TA01 3BIV004-100704TA01 3BIV005-100704TA01 3BIV006-100604TA01 3BIV007-100604TA01 3BIV008-100604TA01 3BIV009-100604TA013b 3b 3b 3b 3b 3b 3b

10/6/200410/7/2004 10/7/2004 10/7/2004 10/6/2004 10/6/2004 10/6/2004


FIGURES

APPENDIX A

Technical Memoranda and Work Plan Addenda

APPENDIX B

Soil Boring Logs

APPENDIX C

Geophysical Logs of Monitoring Well Borings

APPENDIX D

Monitoring Well Boring Logs and Well Construction Diagrams

APPENDIX E

Phase 2 Ecological Investigation Sampling Logs

APPENDIX F

Data Validation Checklists

APPENDIX G

Slug Test Data

new revised ri 021018 draft cml blm · 2020. 10. 14. · submitted by: alcoa inc. city of east...

Documents