sdms docld 2173170 third five-year review report for dorney road landfill superfund site ·...

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1111111111 SDMS DoclD 2173170

THIRD FIVE-YEAR REVIEW REPORT FOR DORNEY ROAD LANDFILL SUPERFUND SITE

BERKS AND LEHIGH COUNTIES, PENNS~LVAN~!GDNAl

Prepared by

U.S. Environmental Protection Agency Region III

Philadelphia, Pennsylvania

____5-j__:c:t_J-~13____K___ ---- ----------- -Ka~hy A. Hodgkiss Date Acting Director Hazardous Site Cleanup Division

TABLE OF CONTENTS

I. Introduction............................................................................................................................. 1 II. Site Chronology ............................................................ : ......................................................... 2

Table 1: Chronology of Site Events .....................................................................................2 III. Background .............................................................................................................................3

Physical Characteristics .......................................................................................................3 Land and Resource Use ............. : ......................................................................................... 3 History of Contamination ....................................................................................................3 Initial Response ...................................................................................................................3 Basis for Taking Action ........................................................................................................4

IV. Remedial Actions ....................................................................................................................4 Remedy Selection ................................................................................................................4 Remedy Implementation ........................................................ ~ .............................................5 System Operation/Operation and Maintenance ........ : .......................................................... 7 .

V. Progress Since the Last Review ..............................................................................................8 VI. Five-Year Review Process ......................................................................................................9

Administrative Components ................................................................................................9 Community Involvement .....................................................................................................9 Document Review ................. : ........................................................................................... 10 Data Review ....................................................................................................................... 11 Site Inspection ............................................................................... ; ...... · .............................. 12 Interviews .......................................................................................................................... 12

·VII. Technical Assessment. .......................................................................................................... 12 Technical Assessment Summary ................................................................................ , ...... 15

VIII. Issues ..................................................................................................................................... 16. IX. Recommendations and Follow-up Actions ......................... : ............ ; .................................... 16 X. ·Protectiveness Statement ...... ~ ............................................................................................... 16 XI. Next Review .................. : ...................................................................................................... 16

Figure 1 - Site Location Map (Residential and Landfill Sampling Locations) Figure 2 - Site Overview

Table 1 ,--- Chronology of Site Events Table 2 - Summary of Historical Analytical Data- VOCs - Landfill Monitoring Wells Table 3 - Summary of Historical Analytical Data- Metals - Landfill Monitoring Wells

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LIST OF ACRONYMS

ARAR CERCLA CIC coc COE EPA ESD HDPE HI MCL NAAQS NCP

NPL O&M OU PADEP PADER PAH PCE PRP RA RAO RD Ri/FS ROD RP RPM RSL TCE UAO voe

Applicable or Relevant and Appropriate Requirement Comprehensive Environmental Response, Compensation, and Liability Act Community Involvement Coordinator Contaminant of Concern U.S. Army Corps of Engineers United States Environmental Protection Agency Explanation of Significant Differences High Density Polyethylene Hazard Index Maximum Contaminant Level National Ambient Air Quality Standards National Contingency Plan (the "National Oil and Hazardous Substances Pollution Contingency Plan") National Priorities List Operation and Maintenance Operable Unit Pennsylvania Department of Environmental Protection Pennsylvania Department of Environmental Resources Poly Aromatic Hydrocarbons Perchloroethene Potentially Responsible Party Remedial Action Remedial Action Objective

· Remedial Design Remedial Investigation/Feasibility Study Record of Decision Responsible Party

·Remedial Project Manager Risk Screening Level Trichloroethylene Unilateral Administrative Order Volatile Organic Compound

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EXECUTIVE SUMMARY

The Dorney Road Landfill, also known as Oswald Landfill, is located along the southwest boundary of Upper Macungie Township in Lehigh County, Pennsylvania, with a small portion of the Site extending into Longswamp Township in Berks County. The Site consists of an abandoned iron mine pit that was used as a landfill, a surrounding soil berm, and adjacent land. Beginning in 1962, the Site was operated as an open dump, with the majority of waste disposed in the abandoned iron mine pit. Initially, R. Emory Mabry, and subsequently, Harold Oswald, gradually expanded the unpermitted landfill, accepting a variety of household and industrial waste from regional municipalities and local businesses, until operation ceased in · December 1978. The landfill itself is currently protected by an impermeable cap.

The landfill cap and replacement wetlands are operating as intended in the OUl ROD. Over the past five years, basic maintenance has been performed to maintain the cap and wetlands. The most recent and major issue was with settling on the landfill which required repairs to the cover system. The repairs were completed in October, 2012.

The landfill monitoring wells have been sampled quarterly for the past five years. The results of the sampling continue to be below the EPA action levels for the contaminants of concern.

The residential monitoring wells have also been sampled quarterly for the past five years. The results have indicated that no VOC contaminants have been above MCLs in any of the samples:·

The remedies in place at the Dorney Road Landfill Superfund Site are protective of human health and the environment. The cap provides a barrier to Site contamination and groundwater contaminants are belowMCLs in both landfill and residential wells. The Institutional Controls in place are adequate to protect the engineered remedy and prevent installation of drinking water wells on the landfill.

Government Performance Review Act (GPRA) Measure Review As part of this Five-Year Review, the GPRA Measures have also been reviewed. The GPRA Measures and their status are provided as follows:

Environmental Indicators Human Health: HEUC (Current Human Health Under Control) Groundwater Migration: GMUC (Groundwater Migration Under Control)

Site-wide Ready For Anticipated Use (RAU) . . The Site was determined to be Site-Wide Ready for Anticipated Use (SWRAU) in April 2012.

IV

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Five-Year Review Summary Form

; SITE IDENTIFICATION

Site Name: Dorney Road Landfill Superfund Site

EPAID: P AD980508832

Region: 3 State: PA City/County: Longswamp and Upper Macungie Townships/Berks and Lehigh Counties

SITE STATUS

NPL Status: Final

Multiple OUs? Has the site achieved construction completion?

Yes Yes

REVIEW STATUS

Lead agency: EPA

Author name (Federal or State Project Manager): Jill Lowe

Author affiliation: EPA

Review period: 8/2012- 5/2013

Date of site inspection: 10/11/12

Type of review: Statutory

Review number: 3

Triggering ac~ion date: 7/28/2008

Due date (five years after triggering_action date): 7/28/2013

Issues/Recommendations

Issues and Recommendations Identified in the Five-Year Review: None

Sitewide Protectiveness Statement (if applicable)

Protectiveness Statement: The remedies in place at the Dorney Road Landfill Superfund Site are protective of human health and the environment. The cap provides a barrier to Site contamination and groundwater contaminants are below MCLs in both landfill and residential wells. The Institutional Controls in place are adequate to protect the engineered remedy and prevent installation of drinking water wells on the landfill.

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Five-Year Review Report

I. Introduction

The purpose of the five-year review is.to determine whether the remedy at a Site is protective of human health and the environment. The methods, findings, and conclusions of reviews are documented in five-year review reports. In addition, five-year review reports identify issues found during the review, if any, and recommendations to address them.

The United States Environmental Protection Agency (EPA) is preparing this five-year review report pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) §121 and the National Oil and Hazardous Substances Poll~tion Contingency Plan (NCP). CERCLA §121 states:

Ifthe President selects a remedial action that results in any hazardous substances; pollutants, or contaminants remaining at the site, the President shall review such remedial action no less often than each five years after the initiation ofsuch remedial action to assure that human health and the environment are being protected by the remedial action being implemented. In addition, ifupon such review .it is the judgment ofthe President that action is appropriate at such site in accordance with section [J 04] or [J 06], the President shall take or require such action. The President shall report to the Congress a list offacilities for which such review is required, the results ofall such reviews, and any actions taken as a result ofsuch reviews.

The Agency interpreted this requirement further in the NCP; 40 Code of Federal· Regulations §300.430(f)(4)(ii) states:

Ifa remedial action is selected that results in hazardous substances, pollutants, or contaminants remaining at the site above levels that allow for unlimited use and unrestricted exposure, the lead agency shall review such action no less often than every five years after the initiation ofthe selected remedial action.

EPA Region 3 has conducted afive-year review of the remedial actions implemented at the Dorney Road Landfill Superfund Site, Upper Macungie Township in Lehigh County and Lonswamp Township in Berks County, Pennsylvania. This review was conducted from August 2012 through May 2013. The-purpose of the five-year review is to dete.rmine whether the remedy at the site is protective of human health and the environment. 1he methods, findings, and conclusions of the review are documented in this report.

This is the third five-year review for the Dorney Road Landfill Site. The triggering action for this review is the date of the second five-year review, as shown in EPA's WasteLAN database: July 28, 2008. The five-year reviews at this Site were specifically activated because the remedial actions at the Site leave waste in place.

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II. Site Chronology

The table below summarizes important events and relevant dates in the chronology of the Dorney Road Landfill Site.

Table 1: Chrono1oev o fS"tI e Even s t

Event Site began operating as a dump Site operated without permit Operation~ ceased EPA performed Preliminary Assessment Proposed to National Priorities List (NPL) NPL Listing EPA Removal Action to prevent waste from leaving property State-lead Remedial Investigation (RI)/ Feasibility Study (FS) conducted Record of Decision (ROD) signature for Operable Unit I (OUI) Liability notice letters sent to Potentially Responsible Parties (PRPs) EPA issued Unilateral Administrative Order (UAO) (EPA Docket No. III-90-45-DC) Explanation of Significant Differences (ESD) for OUl ROD signature for OU2 .Second UAO was issued (EPA Docket No. III-91-26DC) Remedial Design (RD) initiated for OUl Third UAO issued (EPA Docket No. III-92-33-DC) RD started for OU2 RD completed and approved for OUI RD for OU2 completed and Remedial Action (RA) initiated RA Site work commenced for OUl Pre-final inspection for OUI Preliminary Closeout Report issued RA for OU2 completed (quarterly sampling on~going) RA for OUI completed First Five-Year Review Report issued Final Inspection- of wetlands Second ESD for OUl Second Five-Year Review Report issued Property line survey conducted Institutional Control Implementation and Assessment Plan finalized Site-wide Ready for Anticipated Reuse determination

Date 1959 I 966-1978 December 1978 May21, 1980 September 8, 1983 September 2 I, I 984

June 1986

I 987-1988

September 29, I 988

September I 989

September 28, 1990

September I 8, I 99 I September 30, I 991

January 25, I 992

July I 992 August 13, I 992 May 11, 1993 June 1995

December 28, I 995

April I 3, I 998 September 20, I 999 September 28, 1999 March 24, 2000 September 27, 2000 July 1 I, 2003 August 10, 2005 March 20, 2007 July 28, 2008 April 2011

April 2012

April 26, 2012

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III. Background

Physical Characteristics

The Dorney Road Landfill, also known as Oswald Landfill, is located along the southwest boundary of Upper Macungie Township in Lehigh County, Pennsylvania, with a small portion of the Site extending into Longswamp Township in Berks County. The Site is one mile southwest of Breinigsville and 1.4 miles north-northwest of Mertztown. The Site is composed of approximately 27 acres and is surrounded by rural residences and farmland, although housing developments have been constructed near the Site in recent years. (Figure 1)

Land and Resource Use

The Site consists of an abandoned iron mine pit that was used as a landfill, a surrounding soil berm, and adjacent land. Beginning in 1962, the Site was operated as an open dump, with the majority of waste disposed in the abandoned iron mine pit. Initially, R. Emory Mabry, and subsequently, Harold Oswald, gradually expanded the unpermitted landfill, accepting a variety of household and industrial waste from regional municipalities and local businesses, uritil operation ceased in December 1978. The landfill itself is currently protected by an impermeable cap. The Responsible Parties (RPs) have indicated that there is no reuse anticipated with the Site.

The Site is surrounded by rural residences and farmland, some of which use the aquifer under the Site as the primary source of drinking water. Currently, there are 39 homes in in the residential monitoring program for the Site. New housing developments have been constructed in recent years; the closest is approximately 1,200 feet from the landfill (Figure 2). The new developments are using public water. Some of the farmland near the Site is used to grow crops for human and animal consumption.

History of Contamination

In 1986, pursuant to CERCLA, EPA undertook a removal action at the landfill to ensure , that landfill-related materials were not transported off of the property by storm water. EPA then divided the remedial work for the landfill into two operable units. Operable Unit 1 (OUl) addresses the landfill and Operable Unit.2 (OU2) addresses the groundwater.

Contaminants in the leachate and groundwater included ketones, vinyl chloride, trichloroethene (TCE), benzene, heavy metals, and arsenic. Soils contained the pesticide dieldrin, as well as lead and chromium. The apparent source of contamination was the waste buried .and dumped on the soil at the landfill.

Initial Response

In January 1970, the Pennsylvania State Health Center notified the landfill o\vner that the landfill constituted a public health threat and required him to compact the fill and apply cover to the Site. A follow-up letter stated that the owner did not comply with the directive.

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In June 1970, a representative from the Pennsylvania Department of Environmental Resources (PADER, formerly the Pennsylvania State Health Center) visited the Site and noted the approximate location of an on-site area used for the disposal of sludge. Other visits over the years identified the disposal of petroleum products, asbestos and battery casings.

EPA proposed the Site to the National Priorities List (NPL) on September 8, 1983 and added it to the final list on September 21, 1984. A Cooperative Agreement was signed between EPA and PADER, and PADER became the lead agency for work in the Remedial Investigation/Feasibility Study (RI/FS) phase.

An Emergency Removal Action was performed in June 1986 by EPA at the request of PAD ER. The objective of the removal action was to regrade the Site to collect and contain onsite surface runoff. The construction of on-site ponds allowed for controlled discharge of surface runoff via two major spillways. Although a soil cover was applied to portions of the Site, the landfill had never been graded and capped, and waste continued to be exposed in some areas.

An RI was performed from January to June 1988. Due to difficulties encountered during Phase I actiyities, additional data needs were identified and investigative activities were proposed as a Phase II RI effort. Results of the RI were presented in the Final Remedial Investigation Report for OUl dated August 11, 1988. A Feasibility Study for OUl, focusing on the landfill waste, was submitted in August 1988. A Record of Decision (ROD) was issued in September 1988 for OUl, the landfill.

The second RI/FS was performed by PADER from March to July 1991. The study focused on the groundwater. A ROD for OU2, site groundwater, was issued on September 30, 1991.

Basis for Taking Action

The apparent source of contamination was buried and dumped waste on the soil at the landfill. On-site soils exceeded EPA's cancer and non-cancer Hazard Index (HI) acceptable levels primarily due to PAH's, arsenic, lead, and chromium. Contaminants in leachate and groundwater included ketones, 1,1-dichloroethene, 1,2-dichloroethane, TCE, PCE, vinyl chloride, benzene, and arsenic. Both cancer and non-cancer groundwater risk substantially exceeds EPA' s acceptable criteria.

IV. Remedial Actions

Remedy Selection

The ROD for OUl was signed on September29, 1988. The ROD specified the following components:

• Elimination of on-site ponded water; • Regrading; • Multi-layer capping; • Run-on/off controls;

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• Groundwater monitoring; • Perimeter fencing; and, • Deed notice~

The Remedial Action objectives (RAOs) were.not explicitly stated in the ROD for OUl. The following RAOs were inferred:

• Control contaminant migration off-site by containment of contaminated landfill soil and waste material;

• Prevent dermal contact and incidental ingestion; and, • Prevent continued leaching of precipitation and ponded waters through the

contaminated landfill material.

An' Explanation of Significant Differences (ESD) for the ROD for OUl was issued on September 18, 1991. The ESD proposed mitigation for the wetlands located on top of the landfill with a 1 : 1 replacement.

A ROD for OU2 was issued on September 30, 1991. The ROD specified the following components:

• Wellhead treatment units to be provided to residences iflevels of site-related contaminants exceeded action levels;

• · Groundwater monitoring.

The RAO for OU2 was not explicitly stated in the ROD for OU2. The RAO is inferred to be to eliminate exposure to contaminated groundwa!er.

An ESD to establish requirements for the institutional controls for the landfill site was issued on March 20, 2007.

Remedy Implementation

Special notice letters were issued in September 1989 for OUl. In September 1990, EPA issued a Unilateral Administrative Order (UAO), EPA Docket No. 111-90-45-DC, to seven Potentially Responsible Parties (PRPs) after negotiations were unsuccessful. A second UAO, EPA Docket No. 111-91-26-DC, was issued to an eighth Respondent in January 25, 1991. The UAOs required the PRPs to implement the remedy described in the ROD for OUl. The remedial action specified in the September 18, 1991 ESD was incorporated into the UAOs. The Remedial Design (RD) was approved in June 1995.

The Remedial Action (RA) site work for OUl began in April 1998. The major components of the RA included the following:

• Site clearing which included removal of ponded water, clearing of vegetative cover, chipping woody vegetation, and relocation of fugitive surface debris under the cover system;

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• Well abandonment; • Gas trench construction, which was designed to minimize the lateral flow of

landfill gas outside the landfill limits below the surface. The design included a peripheral gas collection trench just beyond the laten1l extent of the landfill;

• Landfill regrading to achieve the grades and slopes for the acceptance of the cover system;

• Subgrade preparation which involved grading and placement of compacted general fill;

• Construction of a gas vent layer on top of the landfill. A geocomposite was used as a gas vent layer on the side slopes of the landfill.

• Gas vent collection piping system consisted of flexible 4-inch perforated High Density Polyethylene (HDPE) pipe along the top of the gas trench connected to seventeen 4-inch HDPE conveyance pipes which were connected to seventeen peripheral passive vents along the crest of the cap. On the surface of the cap, an additional fourteen passive vents were installed with four horizontal perforated flexible HDPE feeder pipes to collect the gas and vent it passively through vent pipes;

• A geotextile was placed over the gas venting layer prior to installation of the grading layer; ·

• Two types of geomembrane were installed. A 40-mil smooth HDPE geomembrane was installed where the slopes were minimal and a 40-mil textured HDPE geomembrane was installed on the embankment slopes along the periphery of the landfill; ·

·• On the top of the landfill, a geotextile cushion fayer was placed over the geomembrane to protect it from the overlying sand drainage layer; .

• A sand drainage layer was put in place and another separation geotextile was put on top of the drainage layer; ·

• An 18-inch layer of compacted general fill on the cover system and 24,.inches of general fill on the cover system slopes serve as protection layer over the underlying system;

• A vegetative layer was the final cover; • Surface drainage was designed with five basic drainage patterns. These patterns

were rough graded during initial landfill grading operations and incorporated as part of the temporary erosion sediment control plan. Permanent drainage incorporated the use of stormwater pipes, riprap channels and natural drainage systems; .

• A replacement wetlands was constructed, which also serves as a stormwater drainage area, and; ·

• A chain link security fence was installed with proper signage.

The contractor conducted the remedial activities basically as designed, with only minor modifications. One modification had to be made for the construction of the wetlands. The west pond contained a large rock which had to be excavated with a rock hammer and processed using a rock crusher. This generated approximately 30,000 cubic yards of fill to be used on the general fill layer of the landfill cap. Another discrepancy was with the placement of the fence on Dorney Road. A variance was needed from the Township to construct the fence closer to the street than

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allowed in order to avoid puncturing the cap with the fence posts. The variance was granted and the fence was installed according to the specifications. During the construction of the gas trench, several sink holes developed.

EPA, Pennsylvania Department of Environmental Protection (PADEP, formerly PADER) and the U.S. Army Corps of Engineers (COE) conducted a pre-final inspection on September 20, 1999. The inspection resulted in a schedule to correct some minor construction items by the contractor. The operation and maintenance plan for the Site was approved by EPA and P ADEP.

The baseline residential well sampling for OU2 was conducted during the first two weeks of March 1999. The ROD and RD required residential groundwater samples to be compared to Action Levels. If the sampling results were above the targeted Action Levels, wellhead treatment units would be required. The baseline results were below the regulated Action Levels.

The Preliminary Closeout Report was issued for the site on September 28, 1999. The Report documents that the EPA completed construction activities at the Dorney Road Landfill Superfund Site in accordance with Closeout Procedures For National Priorities Sites (OSWER Directive 9320.2-09A-P).

System Operation/Operation and Maintenance (

The RPs are conducting long-term monitoring and maintenance activities at the Site in accordance with the operations and maintenance (O&M) section of the EPA approved Remedial Action Work Plan developed inJanuary 1996. The primary activities associated with O&M include the following:

• Visual inspection of the cap with regard to vegetative cover, settlement, stability, and any need for corrective action. In addition, the cap is scheduled for periodic mowmg;

• Inspection of the drainage swales for blockage, erosion and instability, and any need for corrective action;

• Inspection of the condition of the groundwater monitoring wells; • Quarterly groundwater monitoring, which includes monitoring of the landfill

wells and residential wells; and • Engineered wetlands inspection and assessment: ·Inspections are conducted

primarily for the purposes of assessing both weed control needs and the survival of plantings. Assessments are performed to determine if engineered wetlands are meeting the performance standards regarding survival and density of the desired wetlands species.

The City of Allentown conducts t~e quarterly inspections of the landfill, as well as, the quarterly groundwater sampling of both the landfill wells and the residential wells. Over the last five years there have been few, if any, problems with the landfill.

The most recent and major issue was with settling on the landfill which required repairs· to the cover system. The repairs began during the week of October 1, 2012 and consisted of

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delivery, placement and grading of 120 tons of topsoil to fill-in and promote drainage from low spots that developed on the landfill cap. To stabilize these soils, the repaired areas were seeded to promote germination and establishment of grass before the end of the growing season. Areas disturbed by construction were restored prior to demobilization. Repair activities conformed to the material specifications for topsoil and seed mix used for the design and construction of the landfill cap. The topsoil was supplied by J&K Equipment of Sellersville, PA and came from the Blooming Glenn Quarry at located at Quarry Rd, Blooming Glen PA, operated by Haines & Kibblehouse, Inc. ,

As established in the ROD for OU2, long-term sampling is conducted on a quarterly basis on five residences selected based on the previous sampling results. The quarterly sampling is conducted by the City of Allentown. The quarterly sampling program may be modified by EPA, in such areas as the number of wells, location of wells, frequency of sampling, and analytical parameters. Ifquarterly sampling indicated there was a residential well th.at exceeded the action levels, a wellhead treatment system would be provided and maintained. There have been no quarterly residential samples which have been above action levels since sampling began in March 1999.

· V. Progress Since the Last Review

The protectiveness statement from the last Five-Year Review (July 2008) was as follows:

The remedies in place for the Site are protective ofhuman health and the environment in the short-term, because there is no evidence that there is a current unacceptable exposure to Site contaminants. The cap provides a barrier to Site contamination and groundwater contaminants are below MCLs in both the landfill and residential wells. However, to assess protectiveness for the entire Site for the long-term, institutional controls must be put into place to protect the engineered remedy and 1,4-dioxane needs to be ruled out as a Site contaminant ofconcern.

_, The issues and recommendations and follow-up actions identified in the 2008 Five-Year Review were as follows:

Issues Issue Affects Current Affects Future

Protectiveness .c

· Protectiveness· . (YIN) (YIN)

1. Determine if 1,4-dioxane is present in N y groundwater. · 2. Implement Institutional Controls N y

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R ecommen d f p C IOnSa 10ns andFll0 ow-U Af Issue · Recommendations Party Oversight Milestone ·Affects

And Responsible Agency Date Protectiveness Follow-up Actions

Current Future (YIN) (YIN)

1. Sample landfill and PRP EPA March N y residential wells for 1,4 2009 dioxane

2. Place institutional controls PRP, EPA July 30, N y on landfill property EPA, 2010

PADEP

Actions taken to resolve the issues identified above:

Issue# 1: Determine if1,4-dioxane is present in groundwater. Sampling for 1,4-dioxane was conducted in July 2010. Following E.PA's review of the sampling, it was noted that the detection limit needed to be lowered to account for EPA' s recently lowered Risk Screening Level (RSL ). Another round of sampling was performed in July 2011 at a lower detection limit. Eleven samples were analyzed for 1,4-dioxane, four monitoring wells with one duplicate and five

. residential wells with one duplicate. All the detections were below the EPA's RSL.

Issue # 2: Implement institutional controls. EPA surveyed the landfill property to determine the parcel boundaries and to confirm the current ·property owners in 2011. An assessment of the institutional controls already in place concluded that institutional controls to protect the integrity of the cap cover system and prevent the installation of di-inking water wells on the landfill property were implemented in the Unilateral Orders and Administrative Orders with the four Site owners (1996-1998). A complete description of the institutional controls is presented in the Institutional Control ~mplementation and Assurance Plan for the Site that was approved in 2012.

VI. Five-Year Review Process

Administrative Components

The Dorney Road Landfill Five-Year Review Team was led by Jill S. Lowe (EPA Remedial Project Manager (RPM)), with EPA technical support staffHerminio Conception (Hydrogeologist), Linda Watson (Toxicologist), and Ruth Weunschel (Community Involvement Coordinator (CIC)). Ron Schock, PADEP Project Officer, assisted in the review as the representative of the support agency.

Community Involvement

A notice announcing that EPA was conducting a five-year review for the Site was published in The Reading Eagle, on November 20, 2012. The notice solicited comments or concerns from the community ~m the Dorney Road Landfill Superfund Site. No comments were received.

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Document Review

Documents reviewed in the process of conducting this five-year review included the last five-year review, the two RODs, the Explanation of Significant Differences, and the past five years' worth of monitoring reports.

An assessment of the Applicable or Relevant and Appropriate Requirements (ARARs) was conducted during the document review. The assessment determined that the ARARs are being met and/or are still appropriate for the remedies in place.

The major ARARs include: • Section 404 of the Clean Water Act which establishes a program to regulate the

discharge of dredged or fill material into waters of the United States, including wetlands. This ARAR was followed during filling the wetlands and construction of the engineered wetlands.

• Executive Order No. 11990 was a "To Be Considered" ARAR. This Executive Order was issued to avoid, to the extent possible, the long and short term adverse impacts associated with the destruction or modification of wetlands. Although wetlands were destroyed during the capping process, replacement wetlands were constructed with a one-to-one replacement ratio.

• The State ARARs for the wetlands were the Dam Safety and Encroachment Act, 32 P.S. § 693.1 et seq. and the Dam Safety and Waterway Management Regulations, 25 PA Code Chapter 105. These ARARs were complied with during the capping of the landfill and the construction for the engineered wetlands.

• Clean Air Act: National Ambient Air Quality Standards (NAAQS), 40 CFR Part 50. This established air standards that were followed during the construction of the engineered remedy.

• Pennsylvania Hazardous Waste Management Regulations, 25 PA Code § § 264.90-264.100, specifically 25 PA Code §§ 264.97(i) and (j) and§ 264.1 OO(a)(9), which contain a requirement to remediate groundwater to background levels. In the OU2 ROD, EPA waived the requirement to remediate off-site groundwater to background. EPA also waived the requirement to remediate off-site groundwater to Maximum Contaminant Levels (MCLs). The references above no longer exist as written. Overall, the Site groundwater is currently at or below MCLs. Wellhead treatment units will be installed if residential well sampling identifies groundwater above MCLs or risk based standards. No contaminants have been above action levels in the residential wells since sampling began.

• Pennsylvania Solid Waste Management Act, o(July 7, 1980, P.L. Chapters 691.1 et seq. was incorrectly referenced in the ROD for OUl as an ARAR. The correct

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reference for 35 P.S. Chapters 691.1 et seq. is the Clean Streams Law, which relates to discharge to streams. There is no discharge associated with the· landfill cap (OUl) or the groundwater (OU2). The correct reference should have been Pennsylvania Solid Waste ManagementAct, of July 7, 1980, P.L. Chapters 6018.101 et seq., which regulates the closure of municipal waste landfills. Dorney Road Landfill was capped in accordance with these regulations.

Data Review

The groundwater monitoring reports for the groundwater sampling results show that no landfill-related Contaminants of Concern (COCs) were detected above the EPA established action levels in any of the samples collected over the past five years from the landfill groundwater monitoring wells. All of the detected Volatile Organic Compounds (VOC) concentrations are within the range of historical concentrations detected for the groundwater in the landfill area. The concentrations for the detected metals are generally within the historical range for metals. Table 2 contains the historical sampling results for the landfill monitoring wells for VOCs, and Table 3 contains the results for metals. Figure 1 identifies the well

· locations.

The groundwater monitoring reports for the residential sampling results also show that no landfill-related COCs were detected above the EPA established action levels in any of the. samples collected over the past five years from the residential monitoring wells. The residential sampling program samples the residential well closest to the landfill every quarter and selects four other residences based on a pseudo-random sampling from four different groupings, as

. determined in the sampling plan. There have been no quarterly residential samples which have been above action levels since sampling began in March 1999. Risk calculations are also conducted for any residential well that has a detection of a potential landfill related contaminant. No risk-based action levels have ever been exceeded.

Groundwater monitoring is a component of the RODs for the Site. However, based on the amount of data collected at the site on a quarterly basis since the implementation of this groundwater monitoring program, it is recommended that a Groundwater Monitoring Optimization Evaluation be conducted by the PRP, following EPA guidance, for both the landfill and residential monitoring programs. The groundwater optimization can be used to generate recommendations for changes in sampling frequency, changes in the number and location of monitoring points and changes to the analytical requirements.

The potential for vapor intrusion was evaluated prior to this Five-Year Review. EPA determined that the Site does not warrant a vapor intrusion evaluation for the following reasons: (1) voe detections in the groundwater are minimal to non.;.detect, (2) the concentrations of voes that exist in the plume are decreasing over time and are expected to continue to decrease in the future, (3) the soil permeability is low (silty clay and clayey silt), which prevents soil gas vapors from migrating easily, and ( 4) the contaminated groundwater occurs at depths of 65 feet and greater from the surface.

Sampling for 1,4-dioxane was conducted in July 2010 in accordance with the previous

11

Five-Year Review recommendation. EPA's review of the sampling data noted that the detection limit needed to be lowered to account for the recently lowered RSL.. Another round of sampling was performed in July 2011 at a lower detection limit. Eleven samples were analyzed and 1,4dioxane was detected in seven of the samples. All the detections were below the EPA's RSL. EPA has concluded that 1,4-dioxane is not a contaminant of concern for this Site.

EPA surveyed the landfill property in 2011 to determine the parcel boundaries and to confirm the current property owners. An assessment of the institutional controls already in place concluded that institutional controls to protect the integrity of the cap cover system and prevent the installation of drinking water wells on the landfill property were implemented in the Unilateral Orders and Administrative Orders with the four Site owners (1996-1998). A complete description of the institutional controls is presented in the Institutional Control Implementation and Assurance Plan for the Site that was approved in 2012.

Site Inspection

A site visit was conducted on October 11, 2012 as part of the Five-Year Review and to observe the required repairs due to the settling on the landfill. Representatives from the PRP Group and the PRP's contractor were on Site during the inspection. During the site visit, a thorough examination of the landfill was conducted. Other than the repairs previously noted, there were no other issues documented during the Site visit. The wetlands continue to thrive and storm water drainage areas that have had cover issues in the past were also thriving. The growth of the area around the landfill noted in the last Five-Year Review continues. The closest new housing development is located approximat~ly 1,200 feet from the landfill. The new homes being constructed in the area are using the public water supply for drinking water.

Interviews

An email interview was conducted in January 2013 with Ms. Ann Saurman, City of Allentown, Bureau of Recycling and Solid Waste by EPA's Site CIC. Ms. Saurman confirmed that the O&M is proceeding with no issues other than the ones noted above. She has no concerns regarding the Site.

VII. Technical Assessment

• Question A: Is the remedy functioning as intended by the decision documents?

The remedy is functioning as intended by the RODs and ESDs for the Site. The landfill cap is in good condition and meets the performance standards intended in the ROD. The groundwater contamination in the landfill monitoring wells continues to be well below MCLs. The quarterly monitoring of the residential wells continues to demonstrate that there are no detections ofVOC contaminants above MCLs.

• Question B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action objectives (RA Os) used at the time ofremedy selection still valid?.

Have standards identified in the ROD been revised; and does this call into question the

12

protectiveness ofthe remedy? Do newly promulgated standards call into question the protectiveness ofthe remedy? Have TCBs used in selecting cleanup levels at the site changed, and could this affect the protectiveness ofthe remedy?

The OUI ROD indicates "groundwater monitoring" as part of the selected remedy. The monitoring was required to detect any changes in groundwater quality due to leaching of landfill contaminants. The landfill wells are monitored in accordance with the approved Remedial Action Work Plan dated January I996. The groundwater is analyzed for Target Compound List/Drinking Water VOCs and Target Analyte List Dissolved Metals.

The OUI ROD identified the following groundwater contaminants and standards: benezene- 5 µg/L, chlorobenzene-not specified, ethylbenzene- not specified, toluene-not specified, vinyl chloride-2 µg/L, styrene-not specified, 4-methyl-2-pentnone-not specified, xylenes(total)-not specified, I ,2-dichloroethene (total)-not specified, I, I-dichloroethane-not specified, tetrachloroethene (PCE)-not specified; I, I, I-trichloroethane-2 µg/L, trichloroethene-5 µg/L, nickel-not specified, thallium-not specified, zinc-not specified, barium-I ,000 µg/L, manganese-not specified, beryllium-not specified, mercury-2 µg/L.

The I 988 OUI ROD identifies a few performance standards that remain in effect. These include, benzene - 5 µg/L, vinyl chloride - 2 µg/L, I, I, I-trichloroethane - 2 µg/L, trichloroethene - 5 µg/L and mercury- 2 µg/L. However, several of the contaminants did not have MCLs at the time and were identified as "not specified." Federal MCLs are now identified

. for the following: chlorobenzene - 100 µg/L, ethylbenzene - 70 µg/L, toluene - I ,000 µg/L, styrene - I 00 µg/L, xylene - I 0,000 µg/L, cis- I ,2-dichloroethene - 70 µg/L, I, 1-dichloroethane -5 µg/L, tetrachloroethene - 5 µg/L, thallium - 2 µg/L, beryllium - 4 µg/L. In addition, the MCL for barium increased to 2,000 µg/L. Zinc and manganese do not have federal MCLs and thus state derived secondary MCLs are reported for zinc - 5,000 µg/L and manganese - 50 µg/L.

The OU2 ROD does not provide a clear listing of the chemical of concern for the groundwater. Instead, the ROD discu~ses the contaminants that contributed to residential groundwater risk (trichloroethene, tetrachloroethene, vinyl chloride, carbon tetrachloride, I, I dichloroethane, 1,2-dichloroethene, cadmium, chromium) and indicates "EPA has waived the requirement to remediate off-site groundwater to MCLs since data indicates the groundwater contamination appears to be naturally attenuating and remediation to background and/or MCLs

. are technically impracticable. "

Although MCLs were identified as the performance standards for OU2,_the specified standards and contaminants of concern are not provided in the ROD. The residential wells are analyzed for Target Compound List/Drinking Water VOCs. The current Federal MCL standards are noted for the contaminants that were discussed in the ROD: trichloroethene-5 µg/L, tetrachloroethene-5 µg/L, vinyl chloride-2 µg/L, carbon tetrachloride-5 µg/L, 1,1dichloroethane-5 µg/L, 1,2-dichloroethene-70 µg/L, cadmium-5 µg/L, chromium-100 µg/L.

The current residential sampling results only detect PCE in the groundwater. The latest sampling identifies PCE at a range of 0.7 - l.Oµg/L, which does not exceed the MCL or the current screening criteria of 3.5 µg/L.

13

Changes in Exposure Pathways

Has land use or expected land use on or near the site changed?

Local land use still remains a mixture of rural residences and agricultural. Residential development continues to progress towards the landfill. The new developments are on public water systems.

Have human health or ecological routes ofexposure or receptors been newly identified or changed in a way that could affect the protectiveness ofthe remedy? Are there newly identified contaminants or contaminant sources? Are there unanticipated toxic byproducts ofthe remedy not previously addressed by the decision documents? Have physical site conditions or the understanding ofthese conditions changed in a way that could affect the protectiveness ofthe remedy?

The previous Five-Year Review identified the need to sample for 1,4-dioxane to identify if this contaminant was a contaminant of concern for the Site. Sampling for 1,4-dioxane was conducted in July 2010 in accordance with the previous Five-Year Review recommendation. EPA's review of the sampling noted that the·detection lirriit needed to be lowered to account for the recently lowered RSL. Another round of sampling was performed in July 2011 at a lower detection limit. Eleven samples were analyzed and 1,4-dioxane was detected in seven of the samples. All the detections were below the EPA's RSL. EPA has concluded that 1,4-dioxane is not a contaminant of concern for this Site

The potential for vapor intrusion was evaluated prior to this Five-Year Review. EPA determined that the Site does not warrant a vapor intrusion evaluation for the following reasons: (1) voe detections in the groundwater are minimal to non-detect, (2) the concentrations of voes that exist in the plume are decreasing over time and are expected to continue to decrease in the future, (3) the soil permeability is low (silty clay and clayey silt), which prevents soil gas vapors from migrating easily, and (4) the contaminated groundwater occurs at depths of 65 feet and greater from the surface.

Changes in Toxicity and Other Contaminant Characteristics

Have toxicity factors for contaminants ofconcern at the site changed in a way that could affect the protectiveness ofthe remedy? Have other contaminant characteristics changed in a way that could affect the protecriveness ofthe remedy? . · . .

Of the toxicity changes, some have increased while others have decreased, making it impossible to generalize about whether the risks would be higher or lower if recalculated today. However, it is important to note, the increase in the number of available inhalation toxicity values suggest that there would be an increase in risk from inhalation of voes during showering and through vapor intrusion since inhalation toxicity values were limited during the 1988 R1 Risk Assessment. In addition, EPA has determined certain contaminants to be carcinogenic via mutagenic mode of action and special adjustments are applied in estimating cancer risks. Therefore, cancer risk estimates are increased for contaminants that are considered mutagens.

14

Changes in Risk Assessment Methods

Have standardized risk assessment methodologies changed in a way that could affect the protectiveness ofthe remedy?

There have been significant changes in EPA' s risk assessment guidance since the original risk assessment was performed. These include changes in dermal guidance, inhalation methodologies, exposure factors, and a change in the way early-life exposure is assessed for vinyl chloride.

The current residential sampling results only detect PCE in the groundwater. The latest sampling identifies PCE at a range of 0.7 - l .Oµg/L, ·which does not exceed the MCL or the current screening criteria of 3.5µg/L.

Expected Progress Towards Meeting RAOs

Is remedy progressing as expected?

In general the remedy is progressing as expected. The groundwater sampling results, for the landfill, have been consistently below the EPA action levels. Quarterly residential monitoring has not identified any contaminants above MCLs.

Question C: Has any other information come to light that could call into question the protectiveness ofthe remedy?

No other information that has not already been discussed has come to light that would call into question the protectiveness of a remedy.

Technical Assessment Summary

The landfill cap and replacement wetlands are operating as intended in the OUl ROD. Over the past five years, basic maintenance has been performed to maintain the cap and wetlands. The most recent and major issue was with settling on the landfill which required repairs to the cover system. The repairs were completed in October 2012.

The landfill monitoring wells have been sampled quarterly for the past five years. The results of the sampling continue to be below the EPA action levels for the contaminants of concern.

The residential monitoring wells have also been sampled quarterly for the past five years. The results have indicated that no VOC contaminants have been above MCLs in any of the samples.

EPA recommends that a Groundwater Monitoring Optimization Evaluation be conducted by the PRP following EPA guidance based on the amount of data collected at the site .on a

15

quarterly basis since the implementation of this groundwater monitoring program .. The groundwater optimization can be used to generate recommendations for changes in sampling frequency, changes in the number and location of monitoring points and changes to the analytical requirements. These changes will not affect the protectiveness of the remedy.

VIII. Issues

No issues were identified during the Five-Year Review process. EPA recommends that a Groundwater Monitoring Optimization Evaluation be conducted by the PRP following EPA guidance. Optimization of the groundwater monitoring will not affect the protectiveness of the remedy.

IX. Recommendations and Follow-up Actions

There are no recommendations and follow-up actions as a result of this Five-Year Review.

X. Protectiveness Statement

The remedies in place at the Dorney Road Landfill Superfund Site are protective of human health and the environment. The cap provides a barrier to Site contamination and groundwater contaminants are below MCLs in both landfill and residential wells. The Institutional Controls in place are adequate to protect the engineered remedy and prevent installation of drinking water wells on the landfill.

XI. Next Review

EPA will conduct another five-year review within five years of the completion of this report. The completion date is the date of the signature on the front of this report.

16

~~~~------------------------------------..........-

LEGEND

- - -- - DORNEY ROAD (OSWALD) LANDFILL SITE

@ RESIDENTIAL WELL

PRE-EXISTING DEVELOPMENT

NEW DEVELOPMENT

LEHIGH COUNTY ZONING

SITE OVERVIEW DORNEY ROAD LANDFILL

LEHIGH COUNTY, PENNSYLVANIA 0

TABLE2 Summary of Historical Analytical Data - Volatile Organic Compounds

Landfill Monitoring Wells

Parameter MW-2S Dup Dup Dup Dup

05/17/90 06/19/90 03/10/99 03/10/99 03/27/00 09/28/00 03/26/01 09/13/01 03/18/02 03/18/02 09/11/02 03/24/03 09/25/03 03/23/04 10/04/04 03/31/05 09/28/05 03/16/06 03/16/06 09/28/06 03/22/07 10/18/07 03/27/08 09/25/08 09/25/08

I, I, I-Trichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND" ND ND ND ND ND I, 1-Dichloroethane 19.0 18.0 7.7 8.5 3.7 5.8 3.3 3.9 3.7 3.9 3.2 2.6 1.0 1.5 ND 1.8 2.5 1.1 1.4 1.1 1.1 2.2 J 0.7 0.6 0.6 I, 1-Dichloroethene ND ND 0.2JB 0.2JB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2,3-Trichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R R R ND ND ND 1,2,4-Trimethylbenzene ND ND 0.2J 0.5J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dibromo-3-chloropropane (DBCP) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R R R R R R

1,2-Dichlorobenzene ND ND 0.6 0.6 ND 0.7 ND 0.6 ND ND 0.6 ND ND ND ND ND 0.7 ND ND ND ND ND ND ND ND 1,2-Dichloroethane 3J 1.3J 1.5 1.6 0.7 1.2 0.7 0.7 0.7 0.7 0.7 ND ND ND ND 0.5 0.9 ND ND ND ND ND ND ND ND 1,2-Dichloropropane 3J I.SJ 1.8 1.9 0.8 1.5 0.9 1.1 1.0 1.0 1.2 0.7 ND . 0.9 ND 1.1 2.5 . 1.0 1.0 1.0 1.0 I. I 0.5 0.5 0.5 1,3,5-Trimethylbenzene ND ND ND O.IJ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,4-Dichlorobenzene ND ND . 6.2 5.6 1.5 3.8 0.6 1.8 ND ND 0.7 0.6 ND ND ND ND 2.3 ND ND ND ND ND ND ND ND Acetone ND ND 'ND ND ND ND ND ND ND ND ND ND ND ND ND R ND ND ND ND ND ND ND R R

Benzene 4J l.9J 0.6 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Disulfide ND ND ·ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Tetrachloride ND ND Nb ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND o.ND ND ND ND ND ND ND Chlorobenzene ND ND 0.5 0.5J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nb ND ND ND Chloroethane ND ND 1.8 1.7 0.6 1.1 0.6 I K 0.6 0.7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chloroform ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloromethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ND ND . 68.0 77.0 26.8 64.0 33.0 44 (5) 47 (5) 36 (5) 34 (I 0) 31.0 15.2 29.7 2.7 K 33.2 J 49.2 (5) 22.8 22.6 20.1 20.4 20.3 (5) 11.0 7.8 7.9 Ethylbenzene ND ND .. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylene Chloride 6B JOB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylethylketone (2"Butanone) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R ND ND ND R ND ND ND R R

n-Propylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Napthalene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND sec-Butylbenzene ND ND. 0.IJ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND ND Styrene ND .ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Tetrachloroethene 23.0 24.0 5.7 5.6 3.0 1.7 1.7 1.6 2.2 2.3 2.9 1.4 1.3 2.1 1.1 1.5 2.9 2.3 2.3 2.1 1.8 1.8 1.5 I.I 1.1

Toluene ND ND O.IJ 0.3J ND ND 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND 1.1 1.0 ND 1.2 0.5 0.8 0.8 0.7 0.7 ND ND ND ND 0.6 1.0 ND ND ND ND ND ND ND ND Trichloroethene 30.0 31.0 11.0 10.0 3.7 3.9 3.6 2.8 3.9 4.2 4.8 1.6 1.8 4.5 - 0.7 5.8 8.4 4.8 4.9 4.8 4.3 4.4 2.2 1.8 1.8 Vinyl Chloride 6.0 7.0J 6.3 6.1 1.4 4.6 1.9 5.2 K 2.7 K 2.9K 5.2 K 2.7 ND ND ND 2.3 3.4 1.3 1.1 ND ND ND ND ND ND Xylene, total ND ND 0.3J 0.7J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethene, total 94.0 99.0 "ND ND NA NA NA NA· NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

2,4-Dimethyl-3-Pentanone* ND ND -ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Butanal* Nb ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dichlorofluoromethane* 8.7J !OJ ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND . ND ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND· ND Unknown Substituted Benzene* ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown* l7J 12J ·ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb ).

* =Tentatively Identified Compound (TIC) R = rejected data.

K = Analyte present. Reported value may be biased high. Actual value is expected tci be lower. J = estimated concentration

NA= Not analyzed (See cis- and transcJ,2-Dichloroethene) N = tentative result

ND = not detected B = detected in blank

NS = not sampled

(5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I.

Data for historic siie wells MW-4, 5S, 6S, 6D, 7D, 8, 9S, 9D, I OS, and 1 OD can be found summarized in quarterly reports prior to September 2008.

Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. I 991.

2012-10_Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C1-VOAs Page 1 of 11 2/25/2013



Parameter MW-2S MW-2D Dup. Dup. Dup. Dup. Dup.

03/31/09 09/24/09 05/17/90 06/19/90 03/10/99 06/19/00 12/07/00 06/20/01 12/11/01 07/02/02 12/13/02 07/10/03 12/18/03 06/29/04 06/29/04 12/14/04 12/14/04 06/30/05 06/30/05 12/21105 07/12/06 07/12/06 12/28/06 12/28/06 07/26/07 12/18/07

I, I, I-Trichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND I, 1-Dichloroethane 0.5 0.6 4J 2J 1.4 1.2 ND ND ND ND ND 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND I, 1-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - ND 1,2,3-Trichloropropane ND ND ND ·ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R R ND R 1,2,4-Trimethylbenzene ND ND ND ND 1.9 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dibromo-3-chloropropane (DBCP) R R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R R ND R 1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND "ND ND ND ND ND ND ND 1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,3,5-Trimethylbenzene ND ND ND ND 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Acetone ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND Benzene ND ND ND ND O.IJ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Disulfide ND ND ND ND ND 1.4 0.6B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Tetrachloride . ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloroethane ND ND ND ND 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chloroform ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloromethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene 7.2 7.3 ND ND 8.5 6.7 5.8 7.3 5.8 8.0 7.7 K 3.1 3.6 3.6 2.7 3.2 3.1 ND ND ND ND ND ND ND ND 2.6 Ethylbenzene ND ND ND ND 0.4J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylene Chloride ND ND ND 7B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylethylketone (2-Butanone) R R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND n-Propylbenzene ND ND ND ND O.IJ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Napthalene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Styrene ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Tetrachloroethene 1.0 0.9 7.0 5.0 2.1 1.5 I.I 1.8 1.8 0.8 1.7 0.5 1.4 1.3 1.2 1.2 1.2 I.I I. I 1.2 1.0 0.9 1.0 1.0 0.8 1.0 Toluene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Trichloroethene 1.5 1.3 10.0 8.0 2.0 1.4 1.3 1.3 1.3 1.6 1.5 0.7 0.8 0.7 ND 0.7 ND ND 0.6 ND 0.6 0.5 0.5 0.6 0.7 0.8 Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Xylene, total ND ND ND ND 3.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethene, total NA NA 34.0 27.0 ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

2,4-Dimethyl-3-Pentanone* ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Butanal* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND'

Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND Unknown Substituted-Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown* ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * = Tentatively Identified Compound (TIC) R= rejected data. K = Analyte present. Reported value may be biased high. Actual.value is expected to be lower. J = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N= tentative result ND = not detected

0

B=detected in blank NS = not sampled (5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 60, 70, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.

2012-10_Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C1-VOAs Page 2of11 2/25/2013

TABLE2 Summary of Historical Analytical Data- Volatile Organic Compounds


Parameter MW-2D Dup. Dup. Dup.

12/18/07 06/19/08 06/19/08 12/09/08 07/14/09 07/14/09 12116/09 03/29/10 07/19/10 10/13/10 01/18/11 04/22/11

I, I, I-Trichloroethane ND ND ND ND ND ND ND NS ND ND ND ND I, 1-Dichloroethane ND ND ND ND ND ND ND NS ND ND ND ND I, 1-Dichloroethene ND ND ND ND ND ND ND NS ND ND ND ND I,2,3-Trichloropropane R ND ND ND ND ND K NS R R ·R R 1,2,4-Trimethylbenzene ND ND ND ND ND ND ND NS ND '. ND ND ND

I,2-Dibromo-3-chloropropane (DBCP) R R R R R R R NS R .~ R ND ND I,2-Dichlorobenzene ND ND ND ND ND ND ND NS ND ND ND ND I,2-Dichloroethane ND ND ND ND ND ND ND NS ND " ND ND ND I,2-Dichloropropane ND ND ND ND ND ND ND NS ND ND ND ND I,3,5-Trimethylbenzene ND ND ND ND ND ND ND NS ND ND ND ND I,4-Dichlorobenzene ND ND ND ND ND ND ND NS ND ND ND ND Acetone ND ND ND ND ND ND ND NS ND

' ND R ND

Benzene. ND ND ND ND ND ND ND NS ND ND ND ND Carbon Disulfide ND ND ND ND ND ND ND NS ND ND ND ND Carbon Tetrachloride ND ND ND ND ND ND ND NS ND ND ND ND Chlorobenzene ND ND ND ND ND ND ND NS ND ND ND ND Chloroethane ND ND ND ND ND. ND ND NS ND ND ND ND

Chloroform ND ND ND ND ND ND ND NS ND ND ND ND Chloromethane ND ND ND ND ND ND ND NS ND ·' ND ND ND cis-1 ,2-Dichloroethene 2.6 ND ND ND ND ND ND NS ND _1, ND ND ND Ethylbenzene ND ND ND ND ND ND ND NS ND ND ND ND Methylene Chloride ND ND ND ND ND ND ND NS ND ND ND ND Methylethylketone (2-Butanone) ND ND ND R R R R NS R R R R n-Propylbenzene , ND ND ND ND ND ND ND NS ND : ND ND ND Napthalene ND ND ND ND ND ND ND NS ND .. ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND NS ND ND ND ND Styrene ND ND ND ND ND ND ND NS ND ND ND ND Tetrachloroethene LO LO 1.0 LO 0.9 0.9 0.9 NS 0.9 0.9 LO 0.9 Toluene ND ND ND ND ND ND ND NS ND ND ND ND trans-I ,2-Dichloroethene ND ND ND ND ND ND ND NS ND ND ND ND Trichloroethene

~

0.8 ND 0.6 0.6 0.6 0.6 ND NS ND 0.5 0.7 0.5 Vinyl Chloride ND ND ND ND ND ND ND NS ND

.ND ND ND

Xylene, total ND ND ND ND ND ND ND NS ND ..

ND ND ND 1,2-Dichloroethene, total NA NA NA NA NA NA NA NS NA NA NA NA

2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND NS ND ND ND ND Butanal* ND ND ND ND ND ND ND NS )'ID ND .ND ND Dichlorofluoromethane* ND ND ND ND ND ND ND NS ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND NS ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ND NS ND '

ND ND ND Unkriown Substituted Benzene* ND ND ND ND ND ND ND NS ND >

i ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND NS ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND NS ND ND ND ND Unknown* ND ND ND ND ND ND ND NS ND ND ND ND

Concentrations are reported in parts per billion (ppb). R= rejected data. * =Tentatively Identified Compound (TIC) K= Analyte present. Reported value may be biased high. Actual value i.s expected to be lower.

J = estimated concentration )

N = tentative result NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) B = detected in blank ND = not detected NS = not sampled

Dup. Dup. ·Dup. Dup. 04/22/11 07/20/11 07/20/11 09/28/11 12/20/11 12/20/11 02/28/12 05/30112 05/30/12 10/11/12

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R ND ND ND ND ND ND ) ND ND ND

ND ND ND ND ND ND ND ND ND ND ND R R R ND ND R R R R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

' ND ND ND ND ND ND R ND ND ND ND ND ND ·ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND LO 0.8 0.9 0.8 0.9 0.9 0.8 0.8 0.8 0.8

- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA NA NA NA N,:\ NA NA NA NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

(5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of I990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. I99L

2012-10_Dorney Rd_Appendix C -Historical GW Data Summary.xlsx App-C1-VOAs Page 3of11 .2/25/2013



Parameter MW-38 - Dup

05/15/90 06/20/90 03/10/99 03/27/00 06/19/00 09/28/00 12/07/00 03/26/01 03/26/01 06/20/01 09/13/01 07/02/02 09/11/02 12/13/02 07/10/03 09/25/03 12/18/03 03/23/04 06/29/04 10/04/04 12/14/04 03/31/05 06/30/05 12/20/05 03/16/06 07/12/06 09/28/06

I, I, I-Trichloroethane ND ND ND ND . ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND ND

I,1-Dichloroethaiie Nb ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND Nb ND ND ND ND ND ND ND ND ND

I,1-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,2,3-Trichloropropane ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND R R R

1,2,4-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,2-Dibromo-3-chloropropane (DBCP) ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND R R R

1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND '" ND ND ND ND ND ND ND

1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,3,5-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND Nb ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Acetone ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nb

Benzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND· ·ND ND ND ND ND ND ND

Carbon Disulfide 0.61 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ND

Carbon Tetrachloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND

Chloroform ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ···ND ND ND ND ND ND ND

Chloromethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

cis-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nb

Ethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND

Methylene Chloride ND 4B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Methylethylketone (2-Butanone) ND ND ND ND ·ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R

n-Propylbenzene ND ND ND ND ND ND ND ND ND ND ND Nb ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Napthalene ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

sec-Butylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Styrene 0.21 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Tetrachloroethene ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Toluene 0.21 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Trichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND

Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Xylene, total ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND 1,2-Dichloroethene, total ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA '" NA NA NA NA NA NA NA

2,4-Dimethyl-3-Pentanorie* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NQ ND ND ND

Butanal* ND 7.01 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND

Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND " ND ND ND

Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND _.. ND ND ND ND ND ND ND

Unknown Substituted Benzerie* ND ND ND ND ND ·ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown* ND ND ND -ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * = Tentatively Identified Compound (TIC) R= rejected data. K = Analyte present. Reported value may be biased high. Actual value is expected to be lower. 1 = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N = tentative result ND = not detected B=detected in blank. NS =not sampled (5) = Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.



Parameter

I, I, I-Trichloroethane I, 1-Dichloroethane I, 1-Dichloroethene 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,2-Dibromo-3-chloropropane (DBCP) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethylbenzene 1,4-Dichlorobenzene Acetone Benzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane

Chloroform Chloromethane cis-1,2-Dichloroethene Ethylbenzene Methylene Chloride Methylethylketone (2-Butanone) n-Propylbenzene Napthalene sec-Butylbenzene Styrene Tetrachloroethene Toluene trans-1,2-Dichloroethene Trichloroethene Vinyl Chloride Xylene, total 1,2-Dichloroethene, total

2,4-Dimethyl-3-Pentanone* Butanal* Dichlorofluoromethane* Dichloropropene* Thiobis Methane* Unknown Substituted Benzene* Unknown Substituted Benzene* Unknown Substituted Benzene* Unknown*


MW-3S

12/28/06 03/22/07 07/26/07 12/18/07 03/27/08 06/19/08 12/09/08 03/31/09 07/14/09 09/24/09 12/16/09 03/29/10 07/19110 10/13/10 01/18/11 04/22/11 07/21/11 09/28/11 12/20/11 02/28/12 05/30/12 10/11/12 -

- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R ND R ND ND ND ND ND ND R ND R R R R ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R ND R R R R R R . R R R R R ND ND R -R ND R R R

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R ND ND ND ND R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND_ ND ND ND ND ND ND ND 'ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NO ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R R R ND R R R R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND 0.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND •ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND



ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

- Concentrations are reported in parts per billion (ppb). * = Tentatively Identified Compound (TIC) R = rejected data_ K = Analyte present. Reported value may be biased high_ Actual value is expected to be lower. J = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N =tentative result ND = not detected B = detected in blank NS = not sampled (5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc_ 1991.

2012-10_Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C1-V0As Page 5of11 2/25/2013



Parameter MW-7S Dup. Dup. Dup.

05/15/90 06/20/90 03/10/99 03/27/00 06/19/00 09/28/00 12/07/00 03/26/01 06/20/01 09/13/01 07/02/02 09/11/02 09/11102 12/13/02 07/10/03 09/25/03 12/18/03 03/23/04 03/23/04 06/29/04 10/04/04 10/04/04 12/14/04 03/31/05 06/30/05 09/28/05

I, I, I-Trichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND I, 1-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND I, 1-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND ND 1,2,3-Trichloropropane ND ND ND ND ND ND ND ND ND ND ND ·> ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2,4-Trimethylbenzene ND ND 0.41 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

. 1,2-Dibromo-3-chloropropane (DBCP) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND 1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND 1,3,5-Trimethylbenzene ND ND O.IJ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND 1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Acetone ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Benzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Disulfide ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Tetrachloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chlorobenzene ND ND ND ND ND NO ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloroethane ND ND NO ND ND ND ND ND ND ND ND ND NO ND ND ND ND ND ND NO ND ND ND ND ND ND

Chloroform ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloromethane ND ND ND ND ND ND ND ND ND ND ND I K LI K ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND ND Ethylbenzene ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylene Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylethylketone (2-Butanone) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND n-Propylbenzene ND ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Napthalene ND ND 0.41 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Styrene ND ND ND ND ND ND ND ND ND ND ND ND - ND ND ND ND ND ND ND ND ND ND ND ND ND ND Tetrachloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Toluene ND ND 0.21 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Trichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Xylene, total ND ND 0.61 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethene, total ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Butanal* ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NJ.l,, Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND •.. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * =Tentatively Identified-Compound (TIC) R = rejected data. K= Analyte present. Reported value may be biased high. Actual value is expected to be lower. 1 = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N= tentative result ND = not detected B=detected in blank NS = not sampled· (5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water <2perable Unit, Ebasco Services, Inc. 1991.




Parameter MW-7S '

12/20/05 03/16/06 07/12/06 09/28/06 12/28/06 03/22/07 07/26/07 03/27/08 06/19/08 09/25/08 07/14/09 09/24/09 12/16/09 03/29/10 07/19/10 10/13/10 01118/11 04/22/11 07/21/11 09/28/11 12/20lll 02/28/12 05/30/12 10/11/12

1;1, I-Trichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND I, 1-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND I, 1-Dichloroethene ND ND ND ND ND ND ND ND ND ND ., ND ND ND ND ND ND NS ND ND ND ND ND ND ND 1,2,3-Trichloropropane ND R R R R R ND ND ND ND ND ND R ND R R NS R ND ND ND ND ND ND 1,2,4-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND 1,2-Dibromo-3-chloropropane (DBCP) ND R R R R R ND R R R R R R R R R NS ND ·R R ND R R R 1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND 1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ·ND ND ND ND ND ND 1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND. 1,3,5-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND 1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Acetone ND ND ND ND ND ND ND ND ND R ND ND ND ND ND ND NS ND ND ND ND R ND ND Benzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Carbon Disulfide ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS. ND ND ND ND ND ND ND Carbon Tetrachloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Chlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Chloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Chloroform - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Chloromethane ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND cis-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Ethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND. ND ND ND ND Methylene Chloride ND ND ·ND ND ND ND ND ND ND ND 'ND ND ND ND ND ND NS ND ND ND ND ND ND ND Methylethylketone (2-Butanone) ND ND ND R ND ND ND ND ND R R R R ND R R NS R ND ND ND ND ND ND n-Propylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Napthalene ND ND ND ND ND ND ND ND ND ND ND NO ND ND ND ND NS ND ND ND ND ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND . ND ND ND ND ND Styrene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Tetrachloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Toluene ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND NS ND ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Trichloroethene ND ND ND ND ND ND ND ND ND ND .. ND ND"· ND ND ND ND NS ND ND ND ND ND ND ND Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND JND ND NS ND ND ND ND ND ND ND Xylene, total ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND 1,2-Dichloroethene, total NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NS NA NA NA NA NA NA NA 2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND ND ND ND ' ND ND ND ND ND ND NS ND ND ND ND ND ND ND Butanal* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND· ND ND ND ND ND Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND NS ND ND ND ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND NS ND ND ND ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ,, ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ""ND ND ND ND ND ND NS ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND NS ND ND ND ND ND ND ND Unknown* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * =Tentatively Identified Compound (TIC) R = rejected data. K=·Analyte present. Reported value may be biased high. Actual value is expected to be lower. J = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N =tentative result ND = not detected B= detected in blank NS = not sampled (5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, 5S, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.




Parameter MW-llS ~ Dup Dup Dup Dup Dup Dup Dup Dup

05/16/90 06/18/90 03/10/99 06/30/05 03/27/00 03/27/00 09/28/00 09/28/00 03/26/01 09/13/01 09/13/01 03/18/02 09/11102 03/24/03 03/24/03 09/25/03 09/25/03 03/23/04 10/04/04 03i31105 03/31/05 09/28/05 09/28/05 03/16/06 09/28/06 09/28/06

I, I, I-Trichloroethane 1.3N l. IJ 0.21 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND I, 1-Dichloroethane l.6N I.SJ I ND ND ND ND ND O.S 0.6 0.6 0.8 ND ND ND ND ND 0.6 0.9 J 0.7 0.7 0.6. 0.6 O.S ND ND I, 1-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.6 0.6 ND ND ND ND ND ND ND ND ND 1,2,3-Trichloropropane ND ND ND ND ND ND ND ND ND ND ND -· ND ND ND ND ND ND ND ND ND ND ND ND R R R 1,2,4-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dibromo-3-chloropropane (DBCP) ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R R 1,2-Dichlorobenzene . ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND 1,3,S-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Acetone ND 9B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Benzene ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Disulfide ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Carbon Tetrachloride ND 31 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND Chlorobenzene ND ND ND ND ND ND ND ND ND ND ND ~ ND ND ND ND ND ND ND ND 'ND ND ND ND ND ND ND Chloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·NO ND ND ND ND Chloroform ND IS ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 'ND ND ND ND ND ND ND Chloromethane ND JO ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ND ND S.O ND 2.3 2.6 2.9 3.0 2.9 3.2 3.0 4.4 2.7 2.6 2.6 4.2 4.2 4.S 4.2 J '4.1 4.2 4 3.8 3.1 2.6 2.6 Ethylbenzene ND ND ND ND ND ND ND ND ND ND ND ...ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylene Chloride ND 4B ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND . ND ND ND ND ND ND ND Methylethylketone (2-Butanone) ND IS ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R n-Propylbenzene ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND Nb ND ND Napthalene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Styrene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 'ND ND ND Tetrachloroethene 3.0J 2.61 I ND O.SL 0.6 ND ND 0.6 0.9 0.8 1.3 1.1 0.8 0.8 1.0 1.0 1.3 1.1 J . 1.2 1.2 1.3 1.3 1.0 0.9 0.9 Toluene ND ND 0.21 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Trichloroethene S.O 4.0J 2 ND 0.8 0.8 1.0 0.9 1.2 1.3 1.4 1.8 1.6 I I 1.6 1.6 1.5 I.7 J 1.4 1.4 1.5 l.S 1.1 I 1.1

Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Xylene, total ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2-Dichloroethene, total 7.0 6.0 ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ·NA NA NA NA NA NA NA 2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Butanal* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND ND Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ''ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 'ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·-ND ND ND· ND ND ND ND Unknown Substituted .Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Unknown* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1'\D ND ND ·ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * = Tentatively Identified Compound (TIC) R = rejected data. K = Analyte present. Reported value may be biased high. Actual value is expected to be lower. ' J = estimated concentration NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N= tentative result ND = not detected B=detected in blank NS = not sampled (S) =Dilution factor of S, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, SS, 6S, 6D, 70, 8, 9S, 9D, !OS, and 100 can be found summarized in quarterly reports prior to September 2008. Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.




Parameter MW-llS Dup Dup Dup Dup Dup Dup Dup Dup Dup

03/22/07 03/22/07 10/18/07 10/18/07 03/27/08 03/27/08 09/25/08 03/31/09 03/31/09 09/24/09 09/24/09 03/29/10 03/29/10 10/13/10 10/13/10 04/22/11 09/28/11 09/28/11 02/28/12 02/28/12

I, 1, I-Trichloroethane ND. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

I, 1-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

I, 1-Dichloroethene ND ND ND ND ND ND ND ND ·'ND ND ND ND ND ND ND ND ND ND ND ND

1,2,3-Trichloropropane R R R R ND ND ND ND ND ND ND ND ND R R R ND ND ND. ND

1,2,4-Trimethylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,2-Dibromo-3-chloropropane (DBCP) R R R R R R R R R R R R R R R ND .R R R R

1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,2-Dichloroethane ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nff ND ND ND ND ND

1,2-Dichloropropane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1,3,5-Trimethylbenzene ND ND ND ND ND ND ND ND :: ND ND ND ND ND ND ND ND ND ND ND ND

I, 4-Dichlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Acetone ND ND ND ND ND ND R ND ND ND ND ND ND ND ND ND ND ND R R

Benzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Carbon Disulfide ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Carbon Tetrachloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chlorobenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chloroethane ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND

Chloroform ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Chloromethane ND ND ND ND ND ND ND ND • ND ND ND ND ND ND ND ND ND ND ND ND

cis-1,2-Dichloroethene 3.1 3.1 2.6 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Ethyl benzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Methylene Chloride ND ND ND ND ND ND ND ND -ND ND ND ND ND ND ND ND ND ND ND ND

Methylethylketone (2-Butanone) ND ND ND ND ND ND R R R R R ND ND R R R ND ND ND ND

n-Propylbenzene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Napthalene ND ND ND ND ND ND ND ND , ND. ND ND ND ND ND ND ND ND ND ND ND

sec-Butylbenzene ND ND ND ND ND ND ND ND ; ND ND ND ND ND ND ND ND ND ND ND ND

Styrene ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Tetrachloroethene 0.8 0.8 0.9 0.9 ND 0.8 J 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.7 0.7 0.6 0.8 1.0 0.6 0.7

Toluene ND ND ND ND ND ND ND ND ····No ND ND ND ND ND ND ND ND ND ND ND

trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND

Trichloroethene I I.I I.I I 0.7 0.8 0.8 0.7 0.6 0.7 0.7 0.6 0.6 0.7 0.7 0.6 0.7 0.8 0.5 0.6

Vinyl Chloride ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Xylene, total ND ND ND ND ND ND ND ND ;. ND ND ND ND ND ND ND ND ND ND ND ND

1,2-Dichloroethene, total NA NA NA NA NA NA NA NA ·NA NA NA NA NA NA NA NA NA NA NA NA

2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Butanal* ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND

Dichlorofluoromethane* ND ND ND ND ND ND ND ND .• ND ND ND ND ND ND ND ND ND ND ND ND

Dichloropropene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Thiobis Methane* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Unknown Substituted Benzene* ND ND ND ND ND ND ND ND "-ND ND ND ND ND ND ND ND ND ND ND ND

Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Unknown* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND


* = Tentatively Identified Compound (TIC) R = rejected data.

K = Analyte present. Reported value may be biased high. Actual value is expected to be lower. J.= estimated concentration

NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N = tentative result

ND = not detected B = detected in blank

NS = not sampled


Data for historic site wells MW-4, SS, 6S, 60, 70,.8, 9S, 90, IOS, and IOD can be found summarized in quarterly reports prior to September 2008.

Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.




Parameter ' Dup Dup

05/16/90 06/18/90 03/10/99 06/19/00 12/07/00 12/07/00 06/20/01 06/20/01 12/10/01

I, 1, I-Trichloroethane 2.5N l.4J 0.41 ND ND ND ND ND ND I, 1-Dichloroethane 2.4N 2.3J 0.8 0.9 0.9 1.0 1.0 0.9 K I.I I, 1-Dichloroethene ND ND ND ND ND ND ND ND ND 1,2,3-Trichloropropane ND ND ND ND ND ND ND ND ND 1,2,4-Trimethylbenzene ND ND 0.3J ND ND ND ND ND ND 1,2-Dibromo-3-chloropropane (DBCP) ND ND ND ND ND ND ND ND ND 1,2-Dichlorobenzene ND ND ND ND ND ND ND ND ND 1,2-Dichloroethane ND 1:3J ND ND ND ND ND ND ND 1,2-Dichloropropane ND ND ND ND ND· ND ND ND ND ' 1,3,5-Trimethylbenzene ND ND O.IJ ND ND ND ND ND ND 1,4-Dichlorobenzene ND ND ND ND ND ND ND ND ND Acetone ND ND ND ND ND ND ND ND ND Benzene ND ND 0.3J ND ND ND ND ND ND Carbon Disulfide ND ND ND ND .ND ND ND ND ND Carbon Tetrachloride ND 15 ND ND ND ND ND ND ND Chlorobenzene ND ND ND ND ND ND ND ND ND Chloroethane ND Np ND ND ND ND ND ND ND Chloroform ND 15 ND ND ND ND ND ND ND Chloromethane ND 14 ND ND ND ND ND ND ND cis-1,2-Dichloroethene ND ND 3.3 3.0 5.9 5.9 6.2 6.1 K 7.3 Ethylbenzene ND ND 0.3J ND ND ND ND ND ND Methylene Chloride ND 5B ND ND ND ND ND ND ND Methylethylketone (2-Butanone) ND ND ND ND ND ND ND ND ND n-Propylbenzene ND ND ND ND ND ND ND ND ND Napthalene ND ND ND ND ND ND ND ND ND sec-Butylbenzene ND ND ND ND ND ND ND ND ND Styrene ND ND ND ND ND ND ND ND ND Tetrachloroethene 5.0 5.0 1.1 I.I 1.2 1.2 1.8 1.8 2.0 Toluene ND ND 3.9 ND ND ND ND ND ND trans-1,2-Dichloroethene ND ND ND ND ND ND ND ND ND Trichloroethene 8.0 7.0 3.5 1.9 2.2 2. I 2.0 2.0 2.7 Vinyl Chloride ND ND ND ND ND ND ND ND ND Xylene, total ND ND 1.9 ND ND ND ND ND ND 1,2-Dichloroethene, total 13.0 12.0 ND NA NA NA NA NA NA 2,4-Dimethyl-3-Pentanone* ND ND ND ND ND ND ND ND ND Butanal* ND ND ND ND ND ND ND ND ND Dichlorofluoromethane* ND ND ND ND ND ND ND ND ND Dichloropropene* ND 3.0J ND ND ND ND ND ND ND Thiobis Methane* ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND Unknown Substituted Benzene* ND ND ND ND ND ND ND ND ND Unknown* ND ND ND ND ND ND ND ND ND

Concentrations are reported in parts per billion (ppb). * =Tentatively Identified Compound (TIC) K = Analyte present Reported value may be biased high. Actual value is expected to be lower. NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) ND = not detected NS =not sampled

MW-llD Dup Dup Dup Dup Dup Dup

12/10/01 07/02/02 07/02/02 12/13/02 12/13/02 07/10/03 07/10/03 12/18/03 12/18/03 06/29/03 12/14/04 06/30/05 12/20/05 12/20/05 07/12/06 12/28/06

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

I.I 0.9 1.0 0.8 0.9 ND ND 0.9 0.9 0.7 0.7 0.6 0.5 0.5 ND ND ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ... ND ND ND - ND R R ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND R R ND ND ·ND ND ND ND ND ND ND ND ,. ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 63.3 K 63.6 K ·ND ND ND, ND ND ND ND ND ND ND ND ND ND ND 10 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.5 J ND 7.3 6.1 6.3 6.3 6.4 ND ND 7.2 7.2 5.6 5.4 4.8 3.9 3.9 3.7 3.6 ND ND_ ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2.0 0.6 0.6 1.5 1.5 ND ND 1.8 1.8 1.5 1.4 1.4 1.4 1.4 I.I I.I

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2.7 1.8 1.8 2.1 2.1 0.7 0.7 2.2 2.2 1.7 1.4 1.4 1.4 1.4 1.2 1.2

ND ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND·· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .. ND ND ND ND ND ND

R= rejected data. J = estimated concentration N = tentative result B= detected in blank

(5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I. Data for historic site wells MW-4, 5S, 6S, 6D, 78, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008. · Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.




Parameter

I, I, I-Trichloroethane

I,1-Dichloroethane

I, 1-Dichloroethene

1,2,3-Trichloropropane

1,2,4-Trimethylbenzene

1,2-Dibromo-3-chloropropane (DBCP)

1,2-Dichlorobenzene

1,2-Dichloroethane

1,2-Dichloropropane

1,3,5-Trimethylbenzene

1,4-Dichlorobenzene

Acetone

Benzene

Carbon Disulfide

Carbon Tetrachloride

Chlorobenzene

Chloroethane

Chloroform

Chloromethane

cis-1,2-Dichloroethene

Ethylbenzene

Methylene Chloride

Methylethylketone (2-Butanone)

n-Propylbenzene

Napthalene

sec-Butyl benzene

Styrene

Tetrachloroethene

Toluene

trans-1,2-Dichloroethene

Trichloroethene

Vinyl Chloride

Xylene, total

1,2-Dichloroethene, total

2,4-Dimethyl-3-Pentanone*

Butanal*

Dichlorofluoromethane*

Dichloropropene*

Thiobis Methane*

Unknown Substituted Benzene*



Unknown*

MW-110 Dup Dup Dup Dup Dup

07/26/07 07/26/07 12/18/07 06/19/08 12/09/08 12/09/08 07/14/09 12/16/09 12116/09 07/19/10 07/19/10 01/18/11 01/18/11 07/20/11 12/20/11 05/30/12 10/11/12 10/11112

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND



ND ND R ND ND ND ND R R R R R R ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND

ND ND R R R R R R R R R ND ND R ND R R R


ND ND ND ND ND ND Nb ND ND ND ND ND ND ND ND ·ND ND ND

ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND 1-ND

ND ND ND ND ND ND ND ~ ND ·ND ND ND ND ND ND ND ND ND ND


ND R ND ND ND ND ND ND ND ND ND R R ND ND •ND ND ND





ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nb ND ND



2.9 2.91 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 'ND ND

ND ND ND ND ND ND ND ·-ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND R R R R R R R R R ND ND ND ND ND





0.9 0.81 1.0 1.0 I.I /

I.I 0.8 0.9 0.8 0.9 0.9 0.9 0.9 0.8 1.0 0.9 0.8 0.9

ND ND ND ND ND ND ND ··ND ND ND ND ND ND ND ND ND ND ND


1.2 I.I 1 1.0 0.9 1.0 LO 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.8 0.6 0.6 0.7



NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA


ND ND - ND ND ND ND ND .ND ND ND ·ND ND ND ND ND ND ND ND


ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND


ND ND ND ND ND ND ND .··ND ND ND ND ND ND ND ND ND. ND ND


ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND


* =Tentatively Identified Compound (TIC) R = rejected data.

K = Analyte present. Reported value may be biased high. Actual value is expected to be lower. 1 = estimated concentration

NA= Not analyzed (See cis- and trans-1,2-Dichloroethene) N =tentative result

ND = not detected B =detected in blank

NS =not sampled


Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, I OS, and I OD can be found summarized in quarterly reports prior to September 2008.

Source of 1990 data: Final Remedial Investigation Report for Remedial Investigatior:i/Feasibility Study, Ground Water Operable Unit, Ebasco Services, Inc. 1991.

2012-10_Dorney Rd_Appendix C- Historical GW Data Summary.xlsxApp-C1-VOAs Page 11 of 11 2/25/2013

TABLE3 Summary of Historical Analytical Data - Metals


Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium·

Thallium

Vanadium

Zinc

MW-2S Dup. Dup Dup.

6/90 3/10/1999 3/10/1999 3/27/2000 9/28/2000 3/26/2001 9/13/2001 3/18/2002 3/18/2002 9/11/2002 3/24/2003 9/25/2003 3/23/2004 10/4/2004 3/31/2005 9/28/2005 3/16/2006 3/16/2006 9/28/2006 3/22/2007 10/18/2007 3/27/2008 Total Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

0.318 0.0662B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

NR NR NR NR 0.002 0.002 0.001 0.005 B ND ND 0.001 B ND ND ND 0.003 ND ND ND ND ND ND ND ND

NR NR NR NR 0.003 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.126 0.107 0.000107 0.2 0.14 0.229 0.167 0.204 0.198 0.202 0.175 0.161 0.096 0.18 0.025 0.143 0.217 0.182 0.186 0.168 0.157 0.181 0.18

0.0027B 0.001 lB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND 0.001 0.001 ND ND ND ND ND ND ND ND ND ND ND ND ND

80.5 81.2 0.0812 93.2 NA NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

0.00618 0.0036B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.0067B 0.0048B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND 0.005 ND ND 0.001 0.004 0.003 ND 0.008 0.001 K ND ND ND ND ND ND ND ND ND ND

2.23 0.0178B ND 0.055JB ND ND ND ND 0.05 0.06 0.03 ND ND 0.02 ND ND ND ND 0.04 J ND ND 0.04 ND

0.0056B ND ND ND ND ND ND ND 0.003 0.004 0.004 ND ND ND ND ND ND ND ND ND ND ND ND

58.2 59.1 0.0591 78.5 63 (10) 82 (10) 70 (10) 64 (10) 69 (10) 69 (10) 64 (10) 64 (10) . 40 (10) 59 (10) 23.6 50.4 64.8 58.6 57.9 48.1 50.2 59.9 54.6

0.0782 0.0187B 0.011 0.011 0.006 0.008 0.004 0.003 0.044 0.047 ND ND 0.001 K 0.001 K ND ND 0.004 0.003 J ND 0.001 K ND ND ND

0.0077 0.00066 0.000218 0.00019JB 0.0021 0.0012 0.0038 0.0011 0.0008 0.0008 0.001 0.0014 ND 0.0007 ND 0.0004 0.003 . .0.0003 00003 ND 0.0004 ND 0.0007

ND ND ND ND 0.006 Nb ND ND ND ND ND 0.005 ND ND ND ND ND ND ND 0.006 ND ND ND

5.69B 5.88B 3.82 3.8 5.2 4.3L 3.5 3.6 6.1 6.5 4.1 4.1 3.1 3.6 2.4 3.2 4 3.6 3.6 3 3.2 3.9 3.5

NR NR NR NR ND ND 0.003 K 0.002 ND ND 0.003 0.002 ND ND ND ND ND ND ND ND ND ND ND

ND 0.005B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

6.5 6.16 12.2J 12.4J 8.5 .12 (10) 8.3 13 (10) 9.4 9.8 9.9 16 (10) 6 8.4 K 3 8.1 9.8 10.3 10.3 8.5 10 12.6 15

ND ND 0.0031JB 0.0036JB ND ND ND ND ND ND ND ND ND ND ND ND ND .ND ND ND ND ND ND

0.0043 ND ND ND ND ND ND ND ·ND ND 0.026 ND ND ND ND ND ND ND ND ND ND ND ND

0.0535B 0.0248B 0.0288 0.03B 0.008 ND ND ND 0.005 0.007 ND ND 0.006 ND ND ND ND ND. ND ND ND ND ND

Concentrations are reported in milligrams per liter (mg/L).

J = estimated concentration

B = present in field blank

K = Biased high result.

L = biased low result

ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled


Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, IOS, and IOD can be found summarized in quarterly reports prior to September 2008.

Source of 1990 data: Final Remedial Investigali,on Report for Remedial Investigation/Feasibility Study, Ground.Water Operable Unit, Ebasco Services, Inc. 1991.

/

2012-10_Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C2-metals Page 1of12 2/25/2013

TABLE3 Summary of Historical Analytical Data -.Metals


Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-2S MW-2DR

Dup. Dup. .Dup.

9/25/2008 9/25/2008 3/31/2009 9/24/2009 3/29/2010 6/90 3/10/1999 6/19/2000 12/7/2000 6/20/2001 12/11/2001 7/2/2002 12/13/2002 7/10/2003 12/18/2003 6/29/2004 6/29/2004 12/14/2004 12/14/2004

Dissolved Dissolved Diss.olved Dissolved Dissolved Total Dissolved Dissolved Dissolved Dissolved Dissolved. Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

ND ND ND 0.03 NS 0.767 0.0383B ND ND 0.04 K ND ND ND 0.02 0.12 ND ND ND ND ND

ND ND ND ND NS NR NR NR 0.0051 ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND NS NR NR NR ND ND ND ND ND ND ND ND ND ND ND ND

0.194 0.194 0.195 0.172 NS '0.113 0.0956 0.00941 0.011 0.021 0.022 0.024 0.021 0.024 0.012 0.022 0.025 0.024 0.024 0.023

ND ND ND ND NS 0.00158 0.00118 ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND NS ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

NA NA NA NA NS 132 107 15.7 NA ND ND NA NA NA NA NA NA NA NA NA

ND ND ND ND NS 0.0172B 0.0182B 0.01831 0.012 0.008 B ND ND 0.005 ND 0.008 ND 0.006 0.007 ND 0.0051

ND ND ND ND NS 0.00388 ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND 0.001 ND NS ND ND ND 0.001 ND 0.003 ND ND ND ND ND 0.0011 0.0021 ND ND

ND ND ND ND NS 2.27 0.0437B 0.037JB ND ND 0.02 ND 0.02 K 0.05 0.03 ND ND ND ND 0.021

ND ND ND ND NS 0.0088 0.0028 ND 0.002 ND ND ND ND ND ND ND ND ND ND ND

54 53.6 53.1 49.6 NS 5.66 0.5378 183 3.5 25 (10) 24 (10) 25 (10) 24 (10) 25 (10) 4.7 22.5 (5) 23.8 (5) 23.5 (5) 23.1 23.2

0.0021 ND ND ND NS 0.043 0.0047B ND 0.002 0.002 ND 0.002 ND ND 0.003 ND ND ND ND ND

ND ND 0.0004 K 0.0004 K NS ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND 0.0051 ' 0.005 1 ND NS ND ND ND ND 0.009 ND ND ND ND ND ND ND ND ND ND

3.5 3.5 3.8 3.5 NS 27.2 26.9 7.25 6.8 12.9 2.4 2.6 2.7 2.6 18 (10) 2.6 ' 2.2 2.4 2.5 2.6

ND ND ND ND NS NR NR NR ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND NS ND ND ND ND ND 'ND ND ND ND ND ND ND ND ND ND

12.9 12.8' 16.3 15.8 NS 23.4 22.6 5.61J 5.IL 3.2 2.9 3 3 3.1 11 (10) 2.8 2.8 2.8 3.1 3.1

ND ND ND ND NS ND ND 0.003JB ND iND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND NS ND ND 0.00431 ND ,ND ND ND 0.033 ND ND ND ND ND ND ND

ND 0.005 1 ND ND NS 0.03148 0:01118 0.0338 0.014 ND . ND 0.005 ND ND 0.005 ND ND ND R R


1 = estimated concentration


K = Biased high result


ND = not detected

NA= Not analyzed.

NR = Not reported

NS =Not Sampled


Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, !OS, and 1 OD can be found summarized in quarterly reports prior to September 2008.

Source of 1990 data: Final Remedial Investigation Report for Remedial Investigation/Feasibility Study, Ground Water Operable Unit, Ebasco Serv\ces, Inc. 1991 ..

2012-10_Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C2-metals Page 2 of 12 2/25/2013



Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-2DR

Dup. Dup. Dup. Dup. Dup. Dup.

6/30/2005 6/30/2005 7/19/2010 12/21/2005 7/12/2006 7/12/2006 12/28/2006 12/28/2006 7/26/2007 12/18/2007 12/18/2007 6/19/2008 6/19/2008 12/9/2008 7/14/2009 7/14/2009 12/16/2009 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

ND ND 0.02 ND 0.54 J 0.06 J ND ND ND ND ND ND ND ND 0.02 K 0.02 K ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND


0.025 0.025 0.026 0.025 0.025 0.025 0027 0.027 0.023 0.026 0.027 0.023 0.025 0.021 0.025 0.026 0.027



NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA



ND ND ND ND ND ND ND ND ND ND ND ND. ND ND 0.002 J 0.011 J ND

ND ND 0.03 ND ND 0.02 J ND ND ND ND ND ND ND ND ND ND ND


23.8 23.8 24 24.6 23.6 23.6 25 25.3 23.3 26.6 27.6 24.8 24.6 24.8 25.3 24.2 25.4

ND 0.001 J ND ND 0.001 J ND ND 0.001 J ND R R R R ND ND ND ND


ND ND ND ND ND ND ND ND ·ND ND ND ND ND ND ND ND ND

2.3 2.3 2.9 2.5 2.3 2.3 2.2 2.3 2.4 2.4 2.5 2.2 2.2 2.7 2.5 2.2 2.4



3 3 3.2 3.2 3.1 3.1 3 3.1 3.2 3.3 3.5 3.2 3.1 3.6 3.2 3.1 2.9


ND ND ND ND ND ND ND N.D ND ND ND ND ND ND ND ND ND

ND ND ND . ND 0.011 J ND ND ND ND ND ND ND ND ND ND 0.005 J ND






ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled

(5) =Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor 1.

Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, 1 OS, and 1 OD can be found summarized in quarterly reports prior to September 2008:





Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-2DR Dup~ Dup. Dup. Dup.

10/13/2010 1/18/2011 4/22/2011 4/22/2011 7/20/2011 7/20/2011 9/28/2011 12/20/2011 12/20/2011 2/28/2012 5/30/2012 5/30/2012 10/11/2012 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

ND ND ND ND ND ND ND ND ND ND ND ND ND


ND ND ND ND ND. ND ND ND ND ·ND ND ND ND

0.025 0.025 0.027 0 . .027 0.027 0.026 0.025 0.026 0.027 0.024 0.026 O.Oi6 0.025



NA NA NA NA NA NA. NA NA NA NA NA NA NA



ND 0.001 L ND ND ND ND ND ND ND ND ND ND ND


ND -ND ND ND ND ND ND ND ND ND ND ND ND

23.7 25.6 24.8 24.7 24.5 24.3 24.5 24.6 24.4 24.6 24.6 24.9 24.5


ND ND ND ND ND ND ND ND ND ND ND ND ·ND


2.9 2.8 2.3 2.3 2.4 2.4 2.2 2.3 2.4 2.4 2.2 2.4 2.4



3.4 3.6 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.4 3.3 3.3 3.2





J =estimated concentration




ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled


Data for historic site wells MW-4, SS, 6S, 60, 70, 8, 9S, 90, !OS, and lOD can be found summarized in quarterly reports prior to S~ptember 2008.





Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-3S Dup.

6/90 3/10/1999 3/27/2000 6/19/2000 9/28/2000 3/26/2001 3/26/2001 6/20/20.01 9/13/2001 7/2/2002 9/11/2002 12/13/2002 3/24/2003 7/10/2003 9/25/2003 12/18/2003 3/23/2004 6/29/2004 . 10/4/2004 12/14/2004 3/31/2005 12/21/2005 Total Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved· Dissolved Dissolved Dissolved Dissolved Dissolved

3.19 0.513B ND 0.03 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

NR NR NR 0.001 0.001 0.001 0.005 0.003 ND 0.002 B ND 0.001 B ND ND ND ND ND ND ND ND ND ND ND

NR NR NR ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.137 0.118 0.08271 0.034 0.037 0.03 0.031 0.033 0.034 0.28 0.03 0.026 0.029 0.03 0.033 0.02 0.032 0.033 0.033 0.035 0.032 0.036 0.032

0.0029B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

.193 211 46.2 NA NA NA ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA

0.028B 0.0213B ND 0.008 0.005 0.007 0.008 0.008 0.006 ND 0.008 0.006 0.007 K 0.005 0.006 ND 0.005 0.005 0.011 0.014 0.006 ND ND


0.0223B 0.0178B ND ND 0.005 0.002 0.002 0.002 0.003 0.001 0.001 K 0.001 ND 0.001 ND ND ND ND 0.001 ND ND ND. ND

8.23 0.154B 0.09318 ND 0.03 ND ND ND ND 0.04 0.06 0.02 ND ND ND ND ND ND 0.02 ND ND 0.03 ND

0.0101 O.OllB ND ND ND 0.006 0.002 0.002 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

4.17 0.206B 3(8 3 l(IO) 33(10) 33(10) 29 (10) 30(10) 31 (IO) 32 (10) 31 (10) 34 (10) 32 (IO) 33 (10) 32 (10) 31.5 (5) 32.4 (5) . 32.7 (5) 34.9 (5) 30.2 31.1 33 30.7

0.2281 0.0062B 0.356 0.005 0.036 0.018 ND 0.0021 0.005 0.02 0.002 K 0.02 K 0.017 0.002 0.002 0.003 0.002 L 0.003 0.009 0.002 K 0.002 0.005 ND


0.0065 ND 0.00561 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.006 ND ND ND ND ND ND

62.3 67.7 23.8 27(10) 20 22(10)L ·20 (IO) 20 (IO) 17 (10) 17 (10) 21 (IO) 24 (IO) 20 (10) 16 (10) 16 (10) 13.1 (5) 14.4(5) 13.8 (5) 15.2 (5) 20.4 (5) 14.8 (5) 13.4 15.8

NR NR NR 0.002 0.002 0.003 0.004 0.004 0.002 0.002 0.002 0.003 0.002 0.002 0.003 ND 0.002 ND 0.002 0.003 ND 0.002 K ND

ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND ND ND ND ND ND

49.7 52.8 19.51 18(10) 14L 17(10) 15 (IO) 15 (10) 16(IO) 19 (10) 16 (IO) 17 (10) 18 (10) 16 (10) 14 (10) 15.9 (5) 14.2 (5) 15.4 K(5) 18 (5) 18.4 16 14.3 16.4

0.0045 ND 0.00318 ND .ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.0062 ND ND ND ND ND ND ND ND ND 0.027 0.032 ND ND ND ND ND ND ND ND ND ND ND

0.0874 0.0044B 0.007618 ND ND ND ND ND ND 0.038 0.006 K ND ND 0.007 ND ND ND ND ND ND ND ND ND


· J = estimated concentration



L = biased low result ·

ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled


Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, !OS, and !OD can be found summarized in quarterly reports prior to September 2008.


2012-1 O_Dorney Rd_Appendix c·- Historical GW Data Summary.xlsx App-C2-metals Page 5of12 2/25/2013



MW-3S

Parameter 3/16/2006 7/12/2006 9/28/2006 12/28/2006 3/22/2007 7/26/2007 12/18/2007 3/27/2008 6/19/2008 12/9/2008 7/14/2009 9/24/2009 12/16/2009 3/29/2010 7/19/2010 10/13/2010 1118/2011 4/22/2011 7/21/2011 9/28/2011 12/20/2011 2/28/2012 5/30/2012 10/11/2012 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

Aluminum 0.02 K ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Antimony ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Barium 0.027 0.036 0.029 0.036 0.032 0.031 0.026 0.036 0.04 0.028 0.033 0.032 0.028 0.035 0.03 0.03 0.025 0.032 0.028 0.029 0.028 0.034 0.028 0.028

Beryllium ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND ND ND ND ND ND ND ND Cadmium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Calcium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Chromium ND ND ND ND ND ND ND ND ND 0.008 ND ND ND ND ND ND ND ND ND ND ND ND 0.005 ND Cobalt ND ND ND ND ND ND ND ND ND ND 0.006 0.006 ND ND ND ND ND ND ND ND ND ND ND ND Copper ND ND ND 0.001 0.002 0.001 ND 0.001 0.002 ND 0.009 0.009 ND 0.002 ND 0.001 ND 0.001 ND 0.001 0.002 0.002 ND ND Iron ND ND Nb ND ND ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND Lead ND ND ND ND 0.001 0.001 ND ND 0.002 ·ND ND ND ND ND ND ND ND ND ND ND 0.001 0.001 ND ND

Magnesium 36. 31 31 34.7 32.1 32.6 38.7 32.3 34.8 33.7 '

34.4 33.4 33.9 34.6 32.6 29.8 35 35.4 33.6 32.6 35.3 34.3 34.3 31.0

Manganese 0.01 0.089 K 0.008 K 0.005 K 0.011 0.007 0.007 0.001 0.001 0.002 0.01 0.009 0.003 0.004 0.004 JK ND 0.005 0.001 0.006 0.002 0.001 0.001 0.004 ND Mercury ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Nickel ND ND ND ND ND 0.006 ND 0.005 ND ND 0.006 0.006 ND 0.006 ND ND ND ND . 0.006 0.006 ND ND 0.005 ND Potassium 12.5 10 9.1 11 11.9 12.9 12.2 11.7 17.7 16 12.5 115 9.2 10.6 10.4 12.9 10.4 8.8 7.7 9.0 8.9 11.0 8.3 10.6

Selenium ND ND ND ND 0002 0.002 ND ND 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 ND ND 0.002 ND ND 0.002 ND ND Silver ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Sodium 19.9 14.7 16.3 15.7 16.7 18 23.8 18.1 15.7 14.9 15.9 14:4 19 14.4 13.8 20 26 20.5 16.5 17.6 18.9 15.9 15 20.6

Thallium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Vanadium ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Zinc ND ND 0.009 ND 0.008 ND, ND ND 0.005 ND ND ND ND 0.005 0.006 0.006 ND ND ND ND 0.007 0.005 ND ND


J = estimated concentration B = present in field blank K = Biased high result. L = biased low result

. ND = not detected NA= Not analyzed. NR =Not reported NS =Not Sampled (5) =.Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor 1. Data for historic site wells MW-4, 5S, 6S, 60, 7D, 8, 9S, 90, !OS, and !OD cari be found summarized in quarterly reports prior to September 2008. .





Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver .

Sodium

Thallium

Vanadium

Zinc

MW-7S Dup. Dup. Dup.

6/90 3/10/1999 3/27/2000 6/19/2000 9/28/2000 1217/2000 3/26/2001 6/20/2001 9/13/2001 7/2/2002 9/1112002 9/11/2002 12/13/2002 3/24/2003 7/10/2003 9/25/2003 12/18/2003 3/23/2004 3/23/2004 6/29/2004 10/4/2004 10/4/2004 Total Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

2.2 ND ND ND 0.03 ND ND ND 0.05 K ND ND ND ND ND ND 0.05 0.03 0.1 0.06 O.D7 0.09 0.04L 0.04L

NR NR NR 0.0051 0.0031 ND ND ND ND 0.003 B ND 0.004 B 0.002 B ND ND 0.001 B 0.001 B 0.002 B ND ND ND ND 0:0011

NR NR NR 0.002 ND ND 0.001 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.342 0.342 0.3 0.228 0.29 0.198 0.13 0.267 0.286 0.419 0.248 0.186 0.187 0.233 0.384 0.272 0.19 0.139 0.257 0.261 0.292 0.275 0.272

ND 0.0013B ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND 0.0035B ND ND ND ND ND ND 0.001 ND ND ND ND ND ND ND ND ND 0.001 0.001 0.001 0.001 0.001

18.8 12 ND NA NA NA ND ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA

. 0.0041B ND 0.0054U ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.005 1 ND

0.0158B 0.0159B 0.0092JB 0.01 0.017 0.007 ND 0.014 O.oI8 0.011 0.008 0.009 0.01 0.009 K 0.012 0.016 0.012 0.008 0.014 0.013 0.015 O.Ol!l 0.018

ND ND ND 0.001 0.0021 ND 0.017 ND 0.002 ND 0.001 K 0.0011 ND ND 0.002 ND ND ND ND ND 0.002 ND 0.0011

7.41 ND ND ND ND ND ND ND ND ND 0.03 0.09 J 0.051 ND ND ND ND 0.06 ND ND ND ND ND

0.0047 ND ND ND 0.003 0.014 0.032 0.011 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

4.49 4.93 5.12 2.7 3.8 4.4 5.5 3.3 3.4 ND 3.2 3.4 3.7 3.6 2.9 3.9 2.8 1.9 3.7 3.7 4.2 4 3.9

1.361 1.321 2.21 1.46 1.98 1.88 2.35 2.08 2.3 1.89 1.72 1.84 1.87 1.7 1.65 2.03 1.41 0.796 1.63 1.67 1.96 1.77 1.76

0.0439 0.0236 ND 0.013(10) O.OIK ND ND 0.0011 0.02 (10) 0.01 (10) 0.004 0.0009 0.001 0.0038 0.0053 0.0174 (5) 0.0182 (5) 0.0053 0.0085 (5) 0.0086 (5) 0.0091 (5) 0.0089 (4) 0.01 (4)

0.0167 ND 0.01061 0.008 0.012 0.008 0.006 0.011 0.014 0.01 0.008 0.01 0.01 0.009 0.01 0.012 0.009 0.006 0.011 0.011 0.013 0.012 0.012

7.7B 7.54B 8.51 6.7 6.6J 17L(IO) 17(10) 8.7 7 (10) 11 (10) 20 (10) 15 (10) 14 (10) 16 (10) 33 (10) 4.6 14 (5) 37.6 (5) 11.4 (5) 10.8 (5) 4.5 5.3 5.3

NR NR NR ND ND ND 0.005 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND


7.48 7.73 5.59 13(10) 7.SL 12(10) 14 (10) 9.6 8.4 (10) 14 (10) 12 (10) 8.8 8.5 9.7 23 (10) 6 9.5 16.7 (5) BK 7.9 K 4.4 8.1 8.2

ND ND 0.003JB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND 0.024 0.017 0.02 ND ND ND ND ND ND ND ND ND ND

0.0672 0.0303B 0.018JB 0.009 0.012 0.008 0.013 0.01 0.012 0.044 0.008 K 0.007 0.006 0.008 K 0.05 0.02 0.009 K ND 0.01 0.01 0.017 0.016 0.013

.... ~ Concentrations are reported in milligrams per liter ( mg/L ).





ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled







MW-7S

Parameter 12/14/2004 3/31/2005 12/21/2005 3/16/2006 7/12/2006 9/28/2006 12/28/2006 7/26/2007 3/27/2008 6/19/2008 9/25/2008 7/14/2009 9/24/2009 3/29/2010 7/19/2010 10/13/2010 1/18/2011 4/22/2011 7/21/2011 9/28/2011 12/20/2011 2/28/2012 5/30/2012 10/11/2012 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

Aluminum ND 0.08 0.05 0.11 K 0.08 0.18 .0.1 0.07 0.08 0.13 0.07 0.08 0.12 0.06 0.1 (5) ND NS 0.11 L 0.1 0.09 0.05 L 0.08 0.11 ND

Antimony ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Arsenic ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Barium 0.229 0.323 0.285 0.309 0.305 0.306 0.342 0.21 0.304 0.323 0.333 0.286 0.299 0.241 0.302 0.31 NS 0.291 0.312 0.263 0.276 0.272 0.291 0.219

Beryllium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Cadmium ND 0.001 ND ND ND ND 0.001 ND ND 0.001 0.001 ND 0.001 ND ND ND NS ND 0.001 ND ND ND 0.001 ND

Calcium NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND NS ND ND ND ND ND ND NA

Chromium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Cobalt 0.013 0.011 K 0.015 0.017 0.016 0.016 K 0.018 0.016 0.014 0.012 O.Ql8 0.016 0.012 0.013 0.008 (5) 0.018 NS 0.011 0.01 0.012 0.011 0.012 0.01 0.007

Copper ND ND ND ND 0.008 0.001 ND ND .ND ND 0.003 ND 0.001 ND ND 0.001 NS ND ND ND ND 0.005 0.001 ND

Iron ND ND ND 0.04 ND 0.08 0.02 ND ND 0.02 0.03 ND ND ND ND 0.02 NS ND ND ND ND ND ND ND

Lead ND ND ND ND ND ND ND ND ND ND 0.001 ND ND ND ND ND NS ND ND ND ND ND ND ND

Magnesium 3.8 4.7 4.1 4.7 4.6 4.2 4.8 3.6 4.3 4.8 4.5 4.4 4.4 4.1 4.6 4.6 NS 4.6 4.8 4.3 4.8 5.3 4.6 43

Manganese 1.4 2.08 1.95 1.93 201K 2.23 K 2.47 K 1.55 1.86. 2.05 2.1 1.8 1.83 1.64 1.26 JK (5) 1.73 NS 1.83 1.86 1.71 1.7 1.96 1.82 1.43

Mercury 0.0149 (4) 0.0083 (5) 0.0026 0.0062 0.0052 (2) 0.01 K (5) 0.006 K (5) 0.0042 (5) 0.0038 0.0042 0.0026 (5) 0.003 (2) 0.0065 0.003 0.0032 0.002 NS 0.002 0.003 0.0023 0.0017 0.0018 0.002 0.0009

Nickel 0.011 0.013 0.01 0.012 0.012 0.015 0.016 0.013 0.011 0.014 0.016 0.012 0.012 0.011 0.01 (5) 0.016 NS 0.011 .. 0.013 0.011 0.01 0.015 O.Ql5 0.010

Potassium 10.4 3.3 4.7 3.5 4.6 3.1 3.4 5.5 3.7 3.2 3.3 3.9 3.4 3.6 3.2 3.9 NS 3.5 3.1 3.8 3.3 3.1 3.1 8.6

Selenium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Silver ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Sodium 10.9 3.6 6.7 4.4 5.1 3.4 4.1 18 5.3 2.9 4.4 4.9 3.2 6.6 3.3 4.2 NS 4.2 3 6.1 4.2 3.5 3.4 5.5

Thallium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NS ND ND ND ND ND ND ND

Vanadium ND ND ND ND ND ND ND ND ND ND ND ~ND ND ND ND ND NS ND ND ND ND ND ND ND

Zinc 0.007 0.016 0.011 0.013 0.018 0.017 0.015' 0.018 0.012 0.014 0.019 0.013 0.016 0.014 0.014 (5) 0.021 NS 0.014 0.014 0.012 0.012 0.014 0.014 0.005






ND = not detected

NA.= Not analyzed.

NR =Not reported

NS = Not Sampled

(5) =Dilution factor of5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor 1.



2012-10.:._Dorney Rd_Appendix C - Historical GW Data Summary.xlsx App-C2-metals Page 8of12 2/25/2013

TABLE3 Summary of Historical Analytical Data - Metals·


Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-llS Dup. Dup. Dup. Dup. Dup. Dup.

6/90 3/10/1999 3/27/2000 3/27/2000 9/28/2000 9/28/2000 3/26/2001 9/13/2001 9/13/2001 3/18/2002 9/11/2002 3/24/2003 3/24/2003 9/25/2003 9/25/2003 3/23/2004 10/4/2004 3/3112005 3/31/2005 Total Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

0.292J O.OSl 18 ND 0.02J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

NR NR NR 0.001 0.001 ND ND 0.002 0.002 B 0.002 B ND ND ND ND ND ND ND ND ND ND

NR NR NR ND ND ND ND ND ND ND ND ND~ ND ND ND ND ND ND ND ND

0.03S2 0.0282 0.01291 O.OOS 0.006 0.031 0.032 0.034 0.034 0.034 0.033 0.034 0.034 0.034 0.031 0.031 0.03 0.036 0.031 0.031

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND


Sl.2 4S.9 21.6 NA NA NA NA ND NA NA NA NA NA NA NA NA NA NA NA NA

0.0119B 0.006SB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.012 ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.001 J ND ND ND ND ND

ND ND ND 0.003 0.002 ND ND ND ND ND 0.003 ND ND ND ND ND ND ND ND ND

0.416B 0.1118 ND ND ND ND ND ND 0.02 0.02 ND ND ND ND ND ND ND ND ND ND

0.0018 0.002B ND 0.012 0.01 ND ND ND ND ND 0.003 ND ND ND ND ND ND ND ND ND

27.7 2S.8 29.7 30(10) 31(10) 31(10) 31(10) 33 (10) 31 (10) 31 (10) 32 33 (JO) 3S (10) 3S (10) 30.4 (S) 31.1 (S) 30.J (5) 31J 29.3 29

0.013B 0.0064B ND 0.006 0.006 ND ND 0.003 ND ND 0.001 ND ND ND ND ND ND ND 0.002 J ND


ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND. ND ND ND ND ND

3.S2B 4.0SB 22.8 S2(10) 46(10) I.SL l.8L 1.7 2.1 2 2.1 1.9 2 1.8 1.6 1.6 1.8 1.7 4 S.6

NR NR NR ND ND ND ND 0.002 K ND ND ND ND ND ND ND ND ND ND ND ND


2.S6 2.62 18.SJ 40(10) 36(10) 2.1 2 1.9 2.1 2.1 2.3 1.9 1.8 1.8 1.9 2 2.2 K 2.2 4.2 S.3

ND ND 0.0032JB ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND 0.03 ND. ND ND ND ND ND ND ND

0.03B 0.0089B O.OISIJB O.DI I 0.012 ND ND ND ND ND 0.006 ND ND ND ND ND . ND ND ND ND




K =Biased high result


ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled

(S) =Dilution factor of S, unless otherwise noted in parenthesis, all remaining compounds, dilution factor 1.

Data for historic site wells MW-4, SS, 6S, 6D, 7D, 8, 9S, 9D, !OS, and !OD can be found summarized in quarterly reports prim to September 2008.





Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-llS Dup. Dup. Dup. Dup. Dup. Dup. Dup Dup Dup Dup

9/28/2005 9/28/2005 3/16/2006 9/28/2006 9/28/2006 3/22/2007 3/22/2007 10/18/2007 10/18/2007 3/27/2008 9/25/2008 3/31/2009 3/31/2009 9/24/2009 9/24/2009 3/29/2010 3/29/2010 10/13/2010 10/13/2010 4/22/2011 9/28/2011 9/28/2011 2/28/2012 2/28/2012

Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

ND ND ND ND ND ND ND ND ND 0.1 ND ND ND 0.02UJ 0.031 ND ND ND ND 0.06 L ND ND ND ND

0.004 l ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

0.032 0.034 0.035 0.034 0.034 0.032. 0.034 0.034 0.033 0.033 0.035 0.038 0037 0.036 0.036 0.037 0.036 0.035 0.037 0.04 0.036 0035 0035 0.034


ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND' ND ND ND

NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA



ND ND 0.01 ND ND ND ND ND ND ND ND 0.001 0.001 0.001 0.001 ND ND ND ND ND ND ND ND ND.

0.06 l ND ND ND ND ND ND R R 0.09 ND ND ND ND ND ND ND ND ND ND ND 0.02 l ND ND


28.2 28.4 31.8 30 29.2 30 31.1 32.2 32.4 32.8 32.2 32.4 34.1 35.4 35.8 35.7 35.5 33.5 33.6 35 31.3 31.2 32.3 32.1

ND ND ND 0.002 l ND ND ND R R 0.002 ND ND ND .0051 O.OOIUl 0.002 l ND ND ND ND ND ND ND ND



1.8 1.8 1.9 1.8 1.7 1.8 1.9 2 2 1.9 1.9 1.9 2 2 2 2 2 1.9 2 2 2 2 1.9 2



2.4 2.4 2.4 2.2 2.1 2.3 2.3 2.5 2.4 2.2 2.2 2.1 2.2 2.1 2.2 2.2 2.2 2.2 2.2 2.1 2.6 - 2.6 2.5 2.5





l = estimated concentration




ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled

(5) = Dilution factor of 5, unless otherwise noted in parenthesis, all remaining compounds, dilution factor I.






Parameter

Aluminum

Antimony

Arsenic

Barium

Beryllium

Cadmium

Calcium

Chromium

Cobalt·

Copper

Iron

Lead

Magnesium

Manganese

Mercury

Nickel

Potassium

Selenium

Silver

Sodium

Thallium

Vanadium

Zinc

MW-llD

Dup. Dup. Dup Dup Dup Dup Dup Dup

6/90 3/10/1999 6/19/2000 1217/2000 1217/2000 6/20/2001 6/20/2001 12/10/2001 12/10/2001 7/2/2002 7/2/2002 12/13/2002 12/13/2002 7/10/2003 7/10/2003 12/18/2003 12/18/2003 6/29/2004 12/14/2004 6/30/2005 12/20/2005 12/20/2005

Total Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

1.331 0.0356B ND ND ND ND 0.02 K 0.02 K ND ND ND ND ND ND ND ND ND ND ND ND ND 0.031 ND

NR NR NR O.OIJ ND ND ND ND ND ND 0.002 B ND 0.002 B ND ND ND 0.003 B ND ND ND ND ND ND

NR NR NR .· 0.0021 ND ND ND ND ND ND ND ND ND ND 0.002 0.002 ND ND ND ND ND ND ND

0.0309 0.0224 0.0241 0.025 0.029 0.028 0.032 0.032 0.035 0.034 0.031 0.031 0.035 0.034 0.03 0.03 0.031 0.031 0.033 0.033 0.032 0.033 0.033.



45.5 43.3 34.7 NA ND ND ND ND NA ·NA NA NA NA NA NA NA NA NA NA NA NA NA NA

0.0042B 0.0039B ND ND ND ND ND ND ND ND ND ND ND ND 0.007 0.006 ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ·ND ND ND ND

ND ND ND 0.004 0.0011 ND ND ND ND ND ND ND ND 0.0041 ND ND ND ND 0.001 K ND ND ND ND

4.6 ND 0.05518 ND ND ND ND ND 0.03 1 ND ND ND ND ND 0.05 0.05 ND ND ND ND ND ND ND

0.0032 0.0015B ND 0.001 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

26.7 25.5 23.6 22 31 (IO) 30 (IO) 29 (IO) 28 (IO) 29 (IO) 30 (IO) 30 (IO) 30 (IO) 32 (IO) 32 (IO) 24 (I 0) 24 (10) 28.8 (5) 28.5 (5) 26.9 (5) 28 27.2 29.2 28.8

0.0867 0.0074B 0.0051J 0.002 ND ND ND ND ND ND ND ND ND ND 0.022 0.022 ND ND ND 0.001 ND ND 0.0011


ND ND ND ND 0.008 0.007 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

2.64B 2.99B 4.38 4.8 1.9 1.9 1.8 1.7 1.8 1.8 1.8 1.8 1.9 1.8 5.6 5.8 2.1 1.9 1.9 1.8 1.9 2.1 2.1

NR NR NR ND ND ND ND ND ND ND ND ND ND ND 0.005 0.006 ND ND ND ND ND ND ND


2. 18 2.01 4.071 3.6L 2.2 2.2 2.1 2.1 2.1 2.1 2.1 2 2.1 2.1 4 4.1 2.2 2.3 2.4 2.5 2.6 2"8 2.7

ND ND 0.002718 ND ·ND ND ND ND ND ND ND ND ND ND ND ND ND· ND ND ND ND ND ND

0.0051 ND ND ND ND ND ND ND ND ND 0.036 0.038 ND ND ND ND ND ND ND ND ND ND ND

0.0278B 0.0177B 0.034B 0.023 ND ND ND ND ND ND ND ND ND ND ND 0.0051 ND ND ND ND ND ND ND

Concentrations are reported in milligrams per liter ( mg/L ).

1 = estimated concentration




ND = not detected

NA= Not analyzed.

NR =Not reported

NS = Not Sampled


Data for historic site wells MW-4, 5S, 6S, 6D, 7D, 8, 9S, 9D, !OS, and !OD can be found summarized in quarterly reports prior to September 2008.





\

MW-llD

Parameter 7/12/2006 12/28/2006 7/26/2007

Dup 7/26/2007 12/18/2007 6/19/2008 12/9/2008

Dup 12/9/2008 7/14/2009 12/16/2009

Dup 12/16/2009 7/19/2010

Dup 7/19/2010 1118/2011

Dup 1118/2011 7/20/2011 12/20/2011 5/30/2012 10/11/2012

Dup

10/11/20121 Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved

Aluminum ND ND ND ND ND ND ND ND 0.04 K ND ND ND 0.02 J ND ND ND ND ND ND ND

Antimony ND ND ND ND ND ND ND . ND· ND ND ND ND ND ND ND ND ND ND ND ND

Arsenic ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Barium 0.033 0.033 0.031 0.032 0.033 0.034 0.031 0.032 0.036 0.04 0.04 0.037 0.035 0.037 0.036 0.036 0.036 0.034 0.069 0.048

Beryllium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Cadmium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Calcium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

Chromium ND ND ND ND ND ND ND ND ND 0.01 0.005 ND ND ND ND ND ND ND ND ND

Cobalt ND ND ND ND ND ND ND ND 0.006 ND ND ND ND ND ND ND ND ND ND ND

Copper ND 0.002 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Iron ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Lead ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND . ND ND

Magnesium 27.7 29.5 28.4 27.6 32 30.3 30.8 31.4 32.4 34.5 34.6 30.4 30.8 32.8 33.1 30.5 30.1 29.6 29.5 29.6

Manganese ND 0.001 K ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Mercury ND .ND· ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Nickel ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Potassium 1.9 2 2 2 2.2 2 2 2 2.1 2.1 2 2.1 2.4 2.2 2.2 2 2 2 2 2.1

Selenium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Silver ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Sodium 2.6 2.6 2.8 2.7 2.8 2.6 2.6 2.6 2.5 2.2 2.3 2.6 2.6 2.7 2.8 2.6 2.6 2.8 2.9 2.7

Thallium ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Vanadium ND ND ND ND ND Nb ND ND ND ND ND ND ND ND ND ND ND ND ND ND

Zinc 0.008 ND ND ND ND ND ND ND 0.012 ND ND ND ND ND ND ND ND ND 0.012 J ND





L =biased low result

ND = not detected

NA= Not analyzed.

NR =Not reported

NS =Not Sampled

(5) =Dilution factor of 5, tinless otherwise noted in parenthesis, all remaining compounds, dilution factor I.


