ORIGINAL(Red)

PHASE I REPORTREMEDIAL INVESTIGATION/FEASIBILITY STUDY

HUNTERSTOWN ROAD SITEADAMS COUNTY, PENNSYLVANIA

PROJECT No, 87-376AUGUST 4, 1989

PAUL C. Rizzo ASSOCIATES, INC.300 OXFORD DRIVE

MONROEVILLE, PENNSYLVANIA 15146PHONE: (412) 856-9700

TELEFAX: (412) 856-9749

fiR300i*88

i ORIGINALTABLE OF CONTENTS (frtJGf) Rkw

PAGE

LIST OF TABLES ; • • - iv

LIST OF FIGURES ' ; vi

EXECUTIVE SUMMARY ES-1

1.0 INTRODUCTION : ; 1-1

1.1 PURPOSE OF THE INVESTIGATION 1-11.2 REPORT ORGANIZATION 1-21.3 SITE BACKGROUND 1-3

1.3.1 Site Description 1-31.3.2 Site History 1-4

1.4 SUMMARY OF PREVIOUS INVESTIGATIONS 1-8

1.4.1 Waste Materials 1-81.4.2 Soil ; : " 1-81.4.3 Surface Water and Sediment 1-91.4.4 Residential Wells ". : 1-10

2.0 SITE INVESTIGATIONS 2-1

2.1 SURFACE FEATURES '' '• ' ', 2-22.2 CHARACTERIZATION OF POTENTIAL SOURCE AREAS 2-32.3 METEOROLOGY ' . . . [ . 2-52.4 SURFACE WATER AND SEDIMENT SAMPLES : 2-52.5 GEOLOGY 2-7

2.5.1 Drilling and Subsurface Soil Sampling 2-7\

2.5.1.1 Diamond Rotary Coring Techniques 2-82.5.1.2 Air-Rotary Techniques 2-92.5.1.3 Air Monitoring 2-9

2.5.2 Borehole Geophysical Logging ; 2-102.5.3 Permeability Tests 2-112.5.4 Fracture Trace Analysis 2-12

2.6 SOILS ; 2-122.7 GROUNDWATER ; 2-13

2.7.1 Monitoring Well Design 2-132.7.2 Monitoring Well Development 2-14

AR3:'OOi»89

TABLE OF CONTENTS(Continued)

2.7.3 Decontamination of Equipment 2-142.7.4 Groundwater Sampling 2-15

2.8 DEMOGRAPHY AND LAND USE 2-172.9 ECOLOGY 2-17

3.0 PHYSICAL CHARACTERISTICS OF THE SITE 3-1

3.1 SURFACE FEATURES ' 3-13.2 METEOROLOGY/CLIMATE 3-13.3 SURFACE WATER HYDROLOGY 3-23.4 GEOLOGY 3-3

3.4.1 Regional Geologic Setting 3-33.4.2 Local Geology 3-43.4.3 Fracture Trace Analysis 3-8

3.5 SOILS 3-103.6 GROUNDWATER 3-10

3.6.1 Regional Groundwater Setting 3-10

3.6.1.1 Water Bearing Characteristics 3-10of Gettysburg Basin Rocks

3.6.1.2 Groundwater Recharge 3-123.6.1.3 Groundwater Quality 3-123.6.1.4 Groundwater Usage 3-12

t3.6.2 Site Groundwater 3-13

3.6.2.1 Shallow Wells 3-133.6.2.2 Deep Wells 3-15

3.7 DEMOGRAPHY AND LAND USE 3-173.8 ECOLOGY 3-17

4.0 CHEMICAL CHARACTERIZATION [ . 4-1

4.1 RESULTS OF ANALYSES . 4-2

4.1.1 Potential Source Areas 4-2

4.1.1.1 Borrow Area 4-24.1.1.2 Lagoon Area - 4-34.1.1.3 North and South Cornfields 4-44.1.1.4 Stressed Vegetation Area 4-6

TABLE OF CONTENTS(Continued)

4.1.1.5 Drum Burial Area 1 4-84.1.1.6 Drum Burial Area 2 4-10

4.1.2 Surface Water and Sediments 4-124.1.3 Groundwater 4-15

4.2 IDENTIFICATION OF COMPOUNDS OF INTEREST 4-19

5.0 FATE AND TRANSPORT 5-1

5.1 FATE ; : 5-1

5.1.1 Metals 5-25.1.2 Aromatic Hydrocarbons 5-35.1.3 Chlorinated Aliphatic Hydrocarbons 5-4

5.2 EXPOSURE PATHWAYS 5-5

6.0 DATA GAPS ~ 6-1

7.0 SUMMARY AND CONCLUSIONS : . 7-1

REFERENCES

TABLES ' ': '

FIGURES ;

APPENDIX A: PHASE I BORING LOGS ''_APPENDIX B: MONITORING WELL INSTALLATION DETAILSAPPENDIX C: FIELD COLLECTION REPORTSAPPENDIX D: ANALYTICAL DATAAPPENDIX E: TOXICANT PROFILES OF THE COMPOUNDS OF INTEREST

ill

'ORIGINAL(Red)

AR300]*9I

: {fv'edjLIST OF TABLES '

TABLE NO. TITLEI

1-1 SAMPLING CHRONOLOGY

1 1-2 SUMMARY OF WASTE SAMPLING

1-3 SUMMARY OF SOIL SAMPLING

1-4 SUMMARY OF SURFACE WATER AND SEDIMENTSAMPLING

1-5 OFF-SITE WELL LOCATIONS AND ADDRESSES

1-6 OFF-SITE WELL ANALYTICAL DATA

3-1 MONITORING WELL ELEVATIONS AND WATER LEVELS

4-1 SOIL SAMPLES, SUMMARY OF INORGANICANALYTICAL RESULTS

4-2 SOIL SAMPLES, SUMMARY OF ORGANIC ANALYTICALRESULTS

4-3 STRESSED VEGETATION AREA SOIL SAMPLES,SUMMARY OF INORGANIC ANALYTICAL RESULTS

4-4 STRESSED VEGETATION AREA SOIL SAMPLES,SUMMARY OF ORGANIC ANALYTICAL RESULTS •

4-5 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 1, SUMMARY OF INORGANIC ANALYTICALRESULTS

4-6 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 1, SECTION 1, SUMMARY OF ORGANICANALYTICAL RESULTS

4-7 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 1, SECTION 2, SUMMARY OF ORGANICANALYTICAL RESULTS

4-8 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 1, SECTION 3, SUMMARY OF ORGANICANALYTICAL RESULTS

IV

AR3QQl*92

LIST OF TABLES(Continued)

TABLE NO. TITLE

4-9 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 1, SECTION 4, SUMMARY OF ORGANICANALYTICAL RESULTS

4-10 POST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 2, SUMMARY OF INORGANIC ANALYTICALRESULTS

4-11 PO'ST-EXCAVATION SOIL SAMPLES - DRUM BURIALAREA 2, SUMMARY OF ORGANIC ANALYTICALRESULTS

4-12 SURFACE WATER SAMPLES, SUMMARY OFANALYTICAL RESULTS

- ! * i i

4-13 SEDIMENT SAMPLES, SUMMARY OF INORGANICANALYTICAL RESULTS '' "\

4-14 SEDIMENT SAMPLES, SUMMARY OF ORGANICANALYTICAL RESULTS

4-15 SHALLOW GROUNDWATER SAMPLES, SUMMARY OFINORGANIC ANALYSES

4-16 DEEP GROUNDWATER SAMPLES, SUMMARY OFINORGANIC ANALYSES

4-17 SHALLOW GROUNDWATER SAMPLES, SUMMARY OFORGANIC ANALYSES ' '!'

4-18 DEEP GROUNDWATER SAMPLER, SUMMARY OFORGANIC ANALYSES

LIST OF FIGURES

FIGURE NO. TITLE

1-1 SITE LOCATION MAPi

1-2 "" SITE PLAN

1-3 RESIDENTIAL WELL LOCATIONS

2-1 . SOIL SAMPLE LOCATIONS

2-2 SOIL SAMPLE LOCATIONS - DRUM BURIAL AREA 1

2-3 SURFACE WATER AND SEDIMENT SAMPLE LOCATIONS

2-4 ' MONITORING WELL AND TEST BORING LOCATIONS

2-5 SCHEMATIC HYDRAULIC PRESSURE TESTING INROCK

3-1 EXPOSED TRIASSIC-JURASSIC BASINS IN EASTERNNORTH AMERICA

3-2 SCHEMATIC DIAGRAMS OF THE TECTONIC/GEOMORPHIC EVOLUTION OF A TYPICALTRIASSIC-JURASSIC BASIN

3-3 LOCAL GEOLOGIC MAP

3-4 SITE GEOLOGIC MAP AND LOCATIONS OF GEOLOGICSECTIONS

3-5 GEOLOGIC SECTION A-A'

3-6 GEOLOGIC SECTION B-B1I

3-7 GEOLOGIC SECTION C-C1

3-8 GEOLOGIC SECTION D-D1i

3-9 AEROMAGNETIC MAP

3-10 AZIMUTH FREQUENCY DIAGRAMS

3-11 HYDROGEOLOGIC SECTION A-A1

VI

LIST OF FIGURES(Continued)

FIGURE NO. TITLE

3-12 HYDROGEOLOGIC SECTION B-B1

3-13 HYDROGEOLOGIC SECTION C-C11 i ^*

3-14 HYDROGEOLOGIC SECTION D-D1

3-15 POTENTIOMETRIC SURFACE tN THE SHALLOWBEDROCK WELLS

3-16 POTENTIOMETRIC LEVELS IN THE DEEP BEDROCKWELLS \

4-1 TOTAL CHLORINATED ALIPHATIC HYDROCARBONS -SHALLOW BEDROCK WELLS

i f -

4-2 TOTAL CHLORINATED ALIPHATIC HYDROCARBONS -DEEP BEDROCK WELLS

4-3 VERTICAL DISTRIBUTION Of CHLORINATEDALIPHATIC HYDROCARBONS

vn

EXECUTIVE SUMMARY

ORIGINAL(Ked)

EXECUTIVE SUMMARY

This report documents the Phase I Remedial Investigation / FeasibilityStudy for the Hunterstown Road Site, Straban Township, Adams County,

Pennsylvania. The scope of this study corresponds to the initialportion of the RI, and places emphasis on assessing geological,

geotechnical, and hydrological characteristics of the site and definingcompounds of interest. The scope, goals, and objectives were describedin the Phase I RI/FS Work Plan, dated October 1988 and approved by theU.S. Environmental Protection Agency (USEPA) and Pennsylvania Departmentof Environmental Resources (PADER) in November 1988. Specifically, thisstudy has included a fracture trace analysis; drilling and logging of

borings; installation and sampling of monitoring wells; soil, surfacewater, and sediment sampling; physical and chemical sitecharacterization; an evaluation of contaminant fate and transport; andidentification of additional data needs.

A total of 21 borings were drilled to characterize the subsurface.Monitoring wells were installed in 20 of these borings. Monitoringwells were installed in both the shallow and deep bedrock at ten

locations.

Data from the subsurface investigation indicate that the bedrock

underlying the site is composed of hornfels with numerous igneousintrusives. The strata strike at N41°E with a dip of 26°NW.

The fracture traces and lineaments assessed in this study appear tomainly reflect bedding, with a trend nearly perpendicular to bedding ofunknown origin, but which could be strike-slip faulting. Although thejoint azimuths appear to be reflected in the pattern of fracture traces,most of the fracture traces or lineaments do not appear to be joint

controlled. .

ES-1

ARY()OI»97

/G/A/,U(Red)

Groundwater movement is characterized by fracture flow. Groundwaterappears to flow horizontally in the shallow weathered bedrock zones. Inthe vertical plane, downward hydraulic gradients combine withanisotropic hydraulic conductivities to pro.duce groundwater movement

i

that is primarily along the bedding, perpendicular to the strike.

Samples obtained from soils, surface water, sediments, and groundwater

have been analyzed for the parameters on the organics Target CompoundList (TCL) and inorganics Target Analyte List (TAL). Sampling andanalysis of surficial soils from some potential source areas indicateelevated levels of metals, aromatic hydrocarbons, and chlorinated

ialiphatic hydrocarbons. Analytical results for sediment and surfacewater samples indicate elevated levels of metals and chlorinatedaliphatics in some streams. Groundwater was found to contain elevatedlevels of one metal and several chlorinated aliphatic hydrocarbons.Organics were not detected in wells north and east of the site.However, the extent of organics to the south and west remains unknown.

Based on these analyses, compounds of interest for the Hunterstown RoadSite RI/FS have been selected, and include four heavy metals (chromium,copper', lead, and zinc), three aromatic hydrocarbons (toluene,ethylbenzene, and xylenes),.and ten chlorinated aliphatic hydrocarbons(chloroethane, 1,1-dichloroethane, 1,2-dichloroethane,1,1,1-trichloroethane, 1,1,2-trichloroethane, vinyl chloride,1,1-dichloroethene, trans-l,2-dichloroethene, trichloroethene, andtetrachloroethene)..

ES-2

AR300i*98

ORIGINAL(Red)

PHASE I REPORTREMEDIAL INVESTIGATION/FEASIBILITY STUDY

HUNTERSTOWN ROAD SITEADAMS COUNTY, PENNSYLVANIA

1.0 INTRODUCTION !

:- .' 1This report documents the Phase I Remedial Investigation/FeasibilityStudy (RI/FS) investigation for the Hunterstown Road,Site, StrabanTownship, Adams County, Pennsylvania. The information contained in this

report is in response to the Work Plan prepared by Paul C. RizzoAss-ociates, Inc. (Rizzo Associates, 1988) in accordance with the ConsentOrder between Westinghouse Electric Corporation (Westinghouse) and the

United States Environmental Protection Agency, Region III (USEPA), datedMarch 10, 1987 (USEPA Docket No. III-87-4-DC). The Work Plan complies

with RI/FS Guidelines presented in the National Contingency Planpublished in the Federal Register (November 20, 1985) and Section 121 ofthe Superfund Amendments and Reauthorization Act (SARA).

1.1 PURPOSE OF THE INVESTIGATIONThe Phase I portion of the RI/FS provided in this report corresponds tothe initial RI (remedial investigation) portion of the overall study andplaces emphasis on defining the geotechnical, geological, andhydrogeological characteristics of the site area and identifyingcompounds of interest (COI). Specifically, this first phase hasincluded a fracture trace analysis; drilling and logging of borings;installation and sampling of monitoring wells; soil, surface water, and

sediment sampling; physical and chemical site characterization; anevaluation of contaminant fate and transport; and identification ofadditional data needs.

The samples obtained in Phase I were analyzed for the Target CompoundList (TCL) of parameters from which, based on the analytical results,the compounds of interest are identified. Based on the results obtained

during the Phase I investigation, additional data needs to fullyevaluate the risk and appropriate remedial responses were identified.Consistent with the 1988 Work Plan, a Phase II work plan will beprepared to detail additional investigations required to obtaininformation to complete the investigation.

1.2 REPORT ORGANIZATION

The Phase I report summarizes the field and laboratory investigationsundertaken as part of this study integrates the new information into thepreviously existing data. The format of the presentation generallyfollows the suggested RI report format provided in OSWER Directive9355.3-01 (USEPA, 1988). The balance of Section 1.0 includes the sitehistory and previously existing data. Section 2.0 summarizes the thePhase I site investigations,.including drilling and monitoring wellinstallation, geophysics, field mapping, sampling, and laboratorytesting. Section 3.0 summarizes the physical characteristics of thesite, including surface features, meteorology, surface water hydrology,geology, soils, groundwater, demography and land use, and ecology.Section 4.0 summarizes and evaluates the laboratory test results of thesoil, surface water, and groundwater samples obtained during Phase I.Section 5.0 presents an overview of fate and transport mechanisms.

Section 6.0 identifies additional data needs andSection 7.0 summarizes the results of Phase I.

•

Material related to the discussions in the text have been included asappendices. Appendix A contained the boring logs from this study.Appendix B contained installation details of the Phase I monitoring

wells. Appendix C contains the field collection report for soil, water,and sediment samples, as well as chain-of-custody forms. Appendix Dcontained laboratory test results, and Appendix E contains toxicantprofiles for compounds of interest.

1-2

ORIGINAL(Red)

AR300500

Due to the volume of data and material presented, the Phase I report hasbeen organized into two volumes. Volume I contains the text, tables,figures, and Appendices A through C; Volume II contains Appendices D and E

1.3 SITE BACKGROUND

1.3.1 Site DescriptionThe site is located about 1.5 miles northeast of downtown Gettysburg inStraban Township, Adams County, Pennsylvania. A site location map isprovided' as Figure 1-1. Topography in the area is gently rolling. Thesite area is semirural with both farmlands and residences.

The site occupies an approximate area of 22 acres, and portions ofthe site lie both east and west of Hunterstown Road, as shown onFigure 1-2. The coordinates of the site are latitude 39° 51' 6" andlongitude 77° 12' 18".

There are.three .unnamed tributaries of Rock Greek which flow adjacent toportions of the site. These are referred to herein as the West Stream,Middle Stream, and East Stream, as indicated on Figure 1-2. The West

and Middle Streams join just north of Shealer Road, and the East Streamjoins the other combined streams approximately 1,000 feet south ofShealer Road.

There are seven identified areas of specific interest at the site. DrumBurial Area 1 is located west of Hunterstown Road. The others areas arelocated 'east of the road. These are shown on Figure 1-2 and are brieflydescribed as follows:

• Drum Burial Area 1This area is located just east of the WestStream, and has an approximate length of 440feet and a width averaging 90 feet.

• Drum Burial Area 2 !This area lies north of the access road and -immediately west of the Middle Stream. Theapproximate dimensions are 180 feet by 50 feet.

1-3

&R3Q0501

• North CornfieldA roughly triangular open field located north ofthe access road. The field is approximately 500feet wide at the base and about 800 feet inlength.

• South CornfieldA roughly square open field located south of theaccess road. The field has approximatedimensions of 400 feet by 400 feet.

• Lagoon AreaA sloping area with approximate dimensions of100 feet by 150 feet. The area is enclosed by achain-link fence.

• Stressed Vegetation AreaThis area is located east of the South Cornfieldand roughly southwest of the Lagoon. It hasapproximate dimensions of 50 feet by 100 feet.

• Borrow AreaThis area is located along the east bank of theeast stream. It has approximate dimensions of175 feet by 175 feet.

1.3.2 Site HistoryThe following paragraphs present an outline of site history as compiledfrom the various referenced sources. The primary source was RizzoAssociates (1988).

Wastes were placed at the Hunterstown Road site by Mr. Fred Shealer, who- - - f

owns the property and transported the material from various sources.Reported disposal operations at each area of the site are describedbelow.

• LagoonPaint sludges from drums and colored pigmentedclay sludges from tanker trucks were placed inthe lagoon area. Sludges with a high liquidcontent were discharged into small depressions(pools) created by mounding the drier residualsolids into embankments.

1-4

8R30Q502

• CornfieldsTank truck loads of liquid wastes, includingwhite clay sludges and domestic septic tanksludges, were sprayed onto the ground.

• Stressed Vegetation AreaTank truck loads of pigmented clay sludges werereportedly discharged into depressions remainingafter the removal of the top soil.

• Borrow AreaDrums of waste and bundles of insulation boardcontaining asbestos were disposed of at thesurface. ":;

• Drum Burial Areas 1 and 2Drums of paint sludges and solvents, insulationboard containing asbestos, and some constructiondebris were placed in depressions about 4-5 feetdeep. These depressions were previously createdwhen soil was excavated and used in themanufacturing of field tile.

Investigation by the Pennsylvania Department of Environmental Resources(PADER) into the dumping on the Shealer property was initiated as aresult of a complaint from the Adams County Community Environmental

Control Office. According to the complaint, drums containing wastegenerated by the Westinghouse Elevator Manufacturing Plant in Gettysburgwere deposited on the Shealer property in 1975.

In January 1984, PADER requested assistance from the U.S. EnvironmentalProtection Agency (USEPA) in investigating the disposal site. PADERalso requested aid in implementing any necessary immediate removal orremedial response measures.

On March 22, 1984, USEPA issued a CERCLA Section 106 unilateralAdministrative Order to the Westinghouse Electric Corporation(Westinghouse). Westinghouse was required to provide, within seven daysof the effective date of the Order, a sufficient temporary potable watersupply to all households where the USEPA On-Scene Coordinator deemedsuch remedial action was needed. The Order required Westinghouse to

1-5

remove all sludges and liquid materials from the Lagoon. The Order wassupplemented on August 8, 1984, by a request to provide potable water toadditional homes in the-site area.

In April 1984, Westinghouse contracted O.K. Materials, of Findlay, Ohio,to remove drums from the Borrow Area and Lagoon, remove the Lagoonembankment and sludge material. A chain-link fence was also installed.

At the conclusion of the removal, USEPA initiated a Site Investigation.

Based on the results of this investigation, the site was proposed forthe National Priorities List in October 1984. Its listing was finalizedin June 1986.

I

In December 1986, Westinghouse removed two piles of bulk asbestos fromthe Borrow Area. On March 10, 1987, USEPA and Westinghouse signed a

Consent Order requiring Westinghouse to conduct an RI/FS for the site.

In April and May 1987, Westinghouse undertook a series of sitemodifications, including: installing a security fence around the Lagoonand eastern portion of the South Cornfield, installing straw-bale dikes

around the lower half of the Lagoon and around the Stressed VegetationArea, applying lime to the Lagoon and Stressed Vegetation Area, coveringthe Lagoon with mulch, covering the Stressed Vegetation Area with mulch

and plastic sheeting, regrading the southwest corner of the Lagoon,installing a silt barrier on the chain-link fence, removing contaminated

idebris from the East Stream channel, and removing a culvert and

reshaping the channel in the East Stream.i i-

In August 1987, REMCOR, Inc., of Pittsburgh, Pennsylvania, conducted anassessment of the volumes and types of waste found within the two burieddrum"areas. Based on this assessment, Westinghouse hired AssociatedChemical and Environmental Services (ACES), of Horsham, Pennsylvania toconduct a removal of the buried drums from December 1988. through May 1989,

1-6

AR300-50U

1-7

1.4 SUMMARY OF PREVIOUS INVESTIGATIONS

Previous investigation related to the Hunterstown Road Site haveinvolved sampling and analysis of waste materials, soil, surface water,sediment, and residential wells. These investigations are summarized inTable 1-1.

1.4.1 Waste MaterialsSampling of waste materials have been limited to drums and materialsfound in che Lagoon Area, Borrow Area, and Drum Burial Areas 1 and 2.

.,

REMCOR's excavation of test pits in the Drum Burial Areas indicates that

Area 1 is about 440 feet long, 90 feet wide, four to six feet deep, andwas found to contain demolition debris, rubbish, septic tanks,'oil,rusted drums, and other waste material; and Area 2 is about 180 feet

long, 50 feet wide, four to six feet deep, and also contained demolitiondebris, rubbish, rusted drums, and other waste material.

On May 9 and 10, 1984, a site inspection and sampling and analysis. . . I

effort was conducted at the site by the USEPA Region III FieldInvestigation Team (FIT). In an attempt to identify buried drum areas,a gradiometer survey was conducted. The survey did not indicate anyadditional unidentified buried drum areas at the site.

1.4.2 Soil . ; ! - |During previous investigations, ten surface soil samples were collectedbetween May 1984 and May 1986: six from within or near the Lagoon, onefrom the edge of the South Cornfield, two from the Stressed VegetationArea, and one from Drum Burial Area 1. The results are summarized inTable 1-3. No samples from background locations were analyzed prior tothis study.

Samples of stained soil collected by NUS in May 1984 from the Lagoonafter removal of the sludge were reported to contain volatile organic

compounds (VOCs) such as trichlproethene (TCE, at 24 percent);

AR'300505

[run])

1,2-dichloroethene (1,2-DCE, at 9.3 percent); toluene (2.9 percent);

1,1,1-trichloroethane (TCA, at 2.8 percent); xylene (2 percent);ethylbenzene (0.8 percent); and naphthalene (2 parts per million[ppm]). Metals such as lead (0.7 percent), copper (0.2 percent),chromium (0.1 percent), and zinc (0.06 percent) were also detected.

Additional Lagoon soil sampling was performed outside the fenced area.TCA and 1,2-DCE were detected between the fence and the stream. Samplesfrom the slope west of the fence did not contain VOCs but did contain

iheavy metals such as lead (4,680 to 8,580 ppm), copper (1,220 to 2,799ppm), chromium (1,160 to 1,774 ppm), and zinc (493 to 1,126 ppm).

o

A sample collected from the lowe^r corner of the South Cornfield did notcontain VOCs, but did contain heavy metals, including lead (7,940 ppm).Two samples collected from the Stressed Vegetation Area contained

phthalates (910 to 9,100 parts per billion [ppb]) and heavy metals,especially lead.(6,640 to 48,500 ppm).

One sample collected from near Drum Burial Area 1 contained chrysene(110 ppb), benzo(a)anthracene (840 ppb), and 1,2-DCE (35 ppb). Heavymetals were also detected, but at relatively low concentrations comparedto the levels found in other site areas sampled.

'

1.4.3 Surface Water and SedimentTwenty-two surface water and 11 related sediment samples from the sitehave been analyzed during previous investigations. The dates, sampling

organizations, and results are summarized in Table 1-4.

Volatile organic compounds have been found in surface water samplescollected in and downstream from the Lagoon. These compounds includemethylene chloride (1,100 ppb); 1,2-DCE (35 to 4,300 ppb); TCE (170 to

1,200 ppb); TCA (25 to 1,900 ppb); 1,1-dichloroethane (1,1-DCA, at 90 to1,100 ppb); ethylbenzene (94 to 380,000 ppb); xylene (0~2 percent);

1-8

AR30Q5Q6

toluene (7 to 38,000 ppb); and naphthalene (240 ppb). Aqueous samples

collected from puddles outside the fence on the west slope did notcontain organic compounds above quantitation limits.

Samples of sediment were obtained from the East Stream in 1986. Levelsof lead were measured at 5,000 to 8,900 ppm at the culvert locatedimmediately downstream from the Lagoon and 100 ppm farther downstream;

chromium concentrations were 1,213 to 1,625 ppm at the culvert and 1,849ppm farther downstream. Phthalates were also detected in sediment

collected from the East Stream.

l • •'• -i 'Two samples were collected from the pond near Drum Burial Area 1 in 1984and 1985. Analyses showed the presence of methylene chloride (6.3 ppb);

1,2-DCE (220 ppb); TCE (39 ppb); 1,1-DCA (25 ppb); and TCA (21 ppb).

Samples of surface water from the west stream contained VOCs. Thecompounds included methylene chloride (66 ppb); TCA (110 to 1,500 ppb);

1,1-DCA (61 to 3,100 ppb); 1,2-dichloroethane (1,2-DCA, at 1.3 ppb);1,2-DCE (15 to 1,100 ppb); and TCE (125 ppb). Sediment in the weststream downstream from Drum Burial Area 1 contained organic compoundsbut not heavy metals. The organics detected were TCA (13 ppb) and

1,2-DCE (10 ppb).

1.4.4 Residential WellsSeventy-six groundwater samples have been collected from 42 residentialwells in the vicinity of the site. A list of the well owners,

i?

addresses, and construction data is provided in Table 1-5. Welllocations are shown on Figure 1-3. Sampling dates, organizations, andanalytical data are presented in Table 1-6.

' "i.1 ,!i

Water samples from the residential wells were analyzed for volatileorganic compounds. Fourteen samples contained at least one compoundwith a concentration of at least 1.0 ppb. The most commonly detectedcompounds and their ranges in concentration are listed below:

1-9i ;; T

AR300507

NO. OF WELLS IN WHICH RANGE INCOMPOUND COMPOUND WAS DETECTED CONCENTRATION

(ppb)\

TCA 14 1.1-500TCE 10 1.0 - 5001,1-DCE 9 1.6 - 951,2-DCE 6 1.2 - >1501,1-DCA 5 1.0 - 63PCE 3 1.0 - 1.6

Due to the differing dates on which samples were taken and different orunknown well depths, no trends in concentration data can be discerned,except that the highest concentrations of VOCs were detected in wellslocated near the intersection of Hunterstown and Shealer Roads.

1-10

AR300508

2.0 SITE INVESTIGATIONS

The approved studies presented in this report correspond to Phase I asdefined in the approved October 1988 Work Plan (Rizzo Associates,1988). In essence, the Phase I studies were directed to assess the site

i ; rphysical characteristics, such as geology, hydrogeology, soils, and

geotechnical conditions, and to select compounds of interest.

Although substantial site data had already been gathered by others priorto this study, the following data gaps were identified in the Work Plan:

• The geology at the site had not beencharacterized.

i .t - F

• Comprehensive chemical analysis of soil sampleshad not been conducted at the site to evaluatethe full range of potential contaminantspresent.

• The horizontal and vertical extent of soilcontamination was not known.

• The nature and extent of surface water andsediment contamination was unknown.

• The relationship between groundwater and surfacewater at the site had not been established.

• Groundwater conditions beneath the site were notknown.

• Groundwater elevations, gradients, and flowdirections were unknown in the vicinity of thesite and the hydraulic properties of theaquifer, including potential effects offractures, had not been determined.

• Pathways of contaminant migration had not beenidentified.

2-1 ;

AR300509

In response to these data gaps, the following investigations wereconducted under the Phase I RI;

• Literature searches to assess previousgeological, geotechnical, hydrogeological,hydrological, and climatological studies thatmay be applicable to the Hunterstown Road Site.I

• Characterization of site geological conditionsbased on field mapping, core holes, andgeophysical logging.

i-• Characterization of bedrock fractures by means

of a fracture trace analysis.

• Characterization of the site with respect todetermination of compounds of interest.

• Characterization of the hydrogeologicalconditions by installing monitoring wells,measuring water levels, pressure testing coreholes, and analyzing groundwater samples.

• Determination of the horizontal extent of soilcontamination.

• Assessment of whether nearby streams arecurrently serving as migration pathways from thesites based on sampling and analysis of streamand sediment samples.

The details of these investigations are provided in the following.sections.

2.1 SURFACE FEATURESSurface features of the site were assessed by visual reconnaissance fromthe ground and aerial photography. In addition, pertinent surfacefeatures were previously documented as part of the preparation of the

•topographic map of the site by Eastern Mapping, Inc. This information,as well as other maps previously compiled, was utilized to document thetopography, landforms, buildings, drainage, utilities, etc. that

2-2

AR3005IO

comprise the surface features of the site. It should be noted that thetopography and surface water drainage have been somewhat altered sincethe time of mapping due1to the 1988/1989 waste removal program.

2.2 CHARACTERIZATION OF POTENTIAL SOURCE AREAS

Surface soil samples were collected from areas previously identified ascontaining or having received wastes. Waste removal and other emergency

response activities have been performed for most of these areas. Thesamples 'were analyzed to evaluate these areas and "to 'determine compoundsof interest, if any. The sampling strategy and procedures are based onthe approved Phase I Work Plan dated October 1988.

On December 6 and 7, 1988, eight composite soil samples were

collected: three from the North Cornfield, three from the SouthCornfield (plus one duplicate), one from Lagoon Area, and one from theBorrow Area. Five soil/waste samples and one duplicate were collected

i • -r -Ifrom the Stressed Vegetation Area. The locations of these samples areshown on Figure 2-1. One sample of sludge material encountered in the

; : ' ' -*t

cornfields ("Cornfield Sample") was also taken. Finally, a backgroundsoil sample was taken from a cornfield along Hunterstown Road 0.3 milesnortheast of the site.

All samples were submitted to Lancaster Laboratories for analyses forthe Target Compound List (TCL) organic compounds and Target Analyte List(TAL) inorganic parameters. The sample from the Borrow Area was alsoanalyzed for asbestos. The laboratory results are included in Appendix D.

Soil samples were collected by visual selection of points within blocksdefined by a grid presented in the Work Plan. Samples were obtainedfrom depths of approximately 8 to 12 inches within each block andcomposited. Several proposed grid locations were not included in thecompositing due to conflict with the waste removal program or woodedareas. - .

2-3 ;~

AR3005II

All soil samples were collected by digging with a hand shovel to thespecified sampling depth. The hole was then scanned with an Hnuphotoionization detector (10.2 eV lamp) or Foxboro Organic Vapor

iAnalysis (OVA) meter and measurements were recorded on Soil Sample FieldCollection Reports (Appendix C). After scanning the hole, the soilsample was obtained with a stainless steel trowel. Where compositesamples were obtained, approximately equal volumes of subsamples fromgrid locations were collected and composited in a stainless steelbowl. After sample collection, excavated material was returned to the

hole and firmly tamped in place.

Each composite sample consisted of approximately two quarts of materialwhich was then transferred to appropriate containers supplied by thelaboratory. The sample containers were labeled with the appropriateinformation, including sample identification, date, time, and theinitials of the sampling personnel. The duplicate composite sample wascollected using the same procedures as described for the other composite

samples except twice the volume of soil was collected and composited ina stainless steel bowl. The composite sample was then divided andtransferred into two sets of appropriately-labeled sample containers.The background soil sample and the samples from the Stressed VegetationArea were collected using the same procedures except that compositingwas not performed.

• I"On April 13, 1989, 36 samples were collected from the excavation created

after the removal of buried drums from Drum Burial Area 1. In general,the sampling strategy, as presented in a USEPA-approved sampling plan,divided each excavation into four 100-foot by 100-foot sections. In

each section, four shallow (zero to six inches) and four deep (12 to 18inches) grab samples were collected and analyzed for TCL volatiles. In

i

addition, the four shallow samples from each section were composited and

analyzed for all. TCL/TAL parameters.

2-4

AR3005I2

On May 23, 1989 ten samples were collected from the excavation createdafter the removal from Drum Burial Area 2. The sampling strategy inthis area was identical to that for Drum Burial Area 1, except only two

shallow grab samples were in each composite sample.

Sampling.methods for the post-excavation samples were the same as for

the soil samples described above. The locations of the samples fromDrum Burial Area 1 are shown on Figure 2-2. The results of the analysisare included in Appendix D.

Filled containers were placed in a cooler with ice during the samplingperiod and while transported to Lancaster Laboratories. Samplecollection reports were maintained for all surface soil samples obtainedat the site and have been included as Appendix C.

2.3 METEOROLOGY .Meteorological information was compiled based on data gathered by thePennsylvania Geological Survey as published in their groundwaterassessment of Adams County (Taylor and Royer, 1981). The sourceutilized was the U.S. Department of Commerce Environmental Data Service.

2.4 SURFACE WATER AND SEDIMENT SAMPLES

On December 14, 1988 and January 16, 1989 three surface water and fivesediment samples were collected from nearby stream locations. Thelocation of these samples are shown on Figure 2-3. The water sampleswere collected during typical flow conditions and the sediment sampleswere collected at the same times as the corresponding water samples(except SD-4). In addition, duplicate samples of the surface water andsediment were collected from SW-3 and SD-3 on the West Stream. Thelocations for SD-2 and SW-2 were moved approximately 120 feet downstreamfrom their planned locations due to stream modifications performed by

2-5

AR3005I3

ACES during the 1988/1989 waste removal program. All samples weresubmitted to Lancaster Laboratories for analyses for the TCL/TALparameters. The laboratory results are included in Appendix D.

Grab samples were collected from each surface water location by gentlysubmerging a collection container below the water surface. Thecollection container was then turned in the upstream direction. The

container was rinsed several times with stream water and then used tofill the appropriate sample containers. Collection of suspendedparticles (e.g., leaves) was minimized. The volatile organic analysisvials were filled by directly placing the vials into the stream and

I

filling as described above. Containers prepared with the appropriatepreservatives were shaken to assure uniform mixing. Field screening for

pH, specific conductance, and temperature was performed at the time ofcollection and the results recorded on Water Sample Field CollectionReports (Appendix C).

After collection of the water sample, a sediment sample was collected inan undisturbed area of the stream bed slightly upstream of the watersample location. A stainless-steel hand trowel was inserted into thesediment to a depth of approximately five to six inches or to trowel

refusal. The trowel was lifted through the water and the sample wasimmediately placed into sample containers. The volatile organicanalysis container was filled first, followed by the other parametercontainers. An attempt was made to minimize the amount of free water,stones, gravel, and leaves in the sample.

One duplicate surface water and one duplicate sediment sample werecollected using the same procedures as previously described. Duplicate

samples were collected at the same times and in the same manner as theinitial samples.

2-6

AR3005H*

Containers for surface water and sediment samples were labeled with the

appropriate information, including sample identification, dates, time,and the initials of the sampling personnel. Filled containers wereplaced in a cooler containing ice during the sampling period and while

transported to Lancaster Laboratories. In addition, a trip blank (forVOC analysis only) supplied by Lancaster Laboratories was included withthe stream and sediment samples. Sample collection reports were

maintained for all surface water and sediment samples and have beenincluded as Appendix C.

2.5 GEOLOGYPhase I investigations of the geology of the Hunterstown Road Siteincluded extensive review of previously-published information, drillingand logging test borings, geophysical logging of boreholes, inspectionof rock outcrops, and a fracture trace analysis. Two types of boringswere drilled, one with soil sampling and rock coring techniques, theother with destructive drilling (air rotary) techniques. Borehole

geophysical logging was conducted in both types of borings.

The goal of the geological studies was to investigate the geologicalframework in order to better understand groundwater flow systems. Fromthis standpoint, the investigations of geology were closely tied withthe soil and groundwater sampling and analytical programs. Theindividual tasks related to the geological, investigation are discussedseparately.

2.5.1 Drilling and Subsurface Soil SamplingDrilling activities at the Hunterstown Road Site were conducted fromDecember 14, 1988 to May 1, 1989. Pennsylvania Drilling Company, ofPittsburgh, Pennsylvania, and Eichelberger Well Drilling, Inc., ofMechanicsburg, Pennsylvania, performed the drilling services under the

technical direction of Rizzo Associates.

2-7 : ;! t

AR3005I5

Three test borings (HTB-1, HTB-2, and HTB-3) were drilled using hollow

stem augers and diamond rotary coring methods. An additional 18 boringswere drilled using air-rotary techniques. A groundwater monitoring wellwas installed in each of these borings with the exception of HTB-1,which was grouted to the surface. The location of the borings and wellsare shown on Figure 2-4. Boring logs are provided in Appendix A.

2.5.1.1 Diamond Rotary Coring Techniques; A Mobile B-57 truck-mountedI:

drill was utilized for soil sampling and rock coring at Locations HTB-1,

HTB-2, and HTB-3. The borings were advanced through the unconsolidatedsoil using eight-inch O.D. hollow stem augers.

9

Soil samples were retrieved at two-foot intervals (i.e., continuously)from the ground surface to the top of bedrock using split-barrelsamplers driven in compliance with ASTM Specification D-1586-84 for theStandard Penetration Test. The on-site geologist recorded the number ofblows required to drive the sampler each six-inch interval. In

addition, the soil type, color, and cohesiveness were recorded. Soilsampling was terminated at the top of bedrock and temporary four-inchsteel casing was installed in the boring to case off the unconsolidatedsoil.

These borings were advanced through bedrock to a depth of 150 feet using

NQ wireline diamond rotary coring techniques. Water was used as thedrilling flood. Upon completion of each core run, the split core barrel

was retrieved from the boring using the wireline. The split core barrelwas opened by the drillers and the rock core classified by the on-sitegeologist. The rock core was measured for percentage of recovery androck quality designation (RQD), defined as the total length ofunweathered rock segments greater than or equal to four inches in lengthdivided by the total length of the core run. Particular attention was

paid to the joint spacing, fracture partings, joint infilling, brokenI

rock layers, soft or weathered rock layers, and staining-. The rock corewas then carefully removed from the core barrel and placed in labeled

2-8

AR3005I6

wooden core boxes in the sequence of recovery. Following completion of

each boring, the rock core was photographed. The core boxes were thenstored inside the Westinghouse Elevator Plant at Gettysburg,

Pennsylvania.

Wells were subsequently installed in Borings HTB-2 and HTB-3. Inaccordance with the Work Plan, a well was not installed in Boring HTB-1,which was grouted from the bottom to the surface with a cement-bentonitegrout using the tremie method. The grout was composed of a cement-bentonite mixture consisting of one 94-pound bag of cement andapproximately four pounds of powdered bentonite for each seven gallons

of water. :

2.5.1.2 Air-Rotary Techniques; A Drilltech Model D25k air-rotary rigwas utilized for destructive air-rotary drilling of the soil and"bedrockat the 20 locations shown on Figure 2-4. A six-inch diameter tri-coneroller bit was used to advance the boring and air was used to removecuttings from the borehole. On occasion, water was added to the aircirculation to reduce the amount of dust produced from drilling and tofacilitate removal of heavier particles from the boring. Each boringwas checked for inflow of groundwater as the boring progressed bytemporarily stopping the drilling, blowing the boring with air, andrecording the flow of water from the boring. In addition, the on-site

geologist noted the rock type, rock color, hardness, occurrence ofminerals, weathered zones, and fractured units based on observation of

the rock chips and the behavior of the drilling rig.

2.5.1.3 Air Monitoring; Air monitoring was performed during Phase Idrilling activities using a calibrated HNu organic photoionizationdetector (10.2 eV lamp). Results were recorded on the daily field logsand the boring logs. The meter was periodically calibrated in

accordance with the manufacturer's instructions. No sustainedmeasurements above one part per million (ppm) of total VOCs in thebreathing zone were observed during drilling.

2-9 ;

AR3005I7

Personnel monitoring was also performed. A 3M Model 3500 passivemonitor was worn by a worker for an entire shift while drilling Boring

HMW-7B. The monitor was then analyzed for 38 common solvents, includingTCA and TCE. Analytical results indicate that these solvents were notdetected above quantitation limits.

2.5.2 Borehole Geophysical LoggingA Mount Sopris Model 1000-C portable logger was available to runtemperature, single-point resistance, spontaneous potential, fluidresistivity, and natural gamma logs in each of the three coreholes, ineach deep monitoring well boring, and in the borehole for HMW-2A.However,-equipment malfunctions prevented the logging of Borings HMW-5B,HMW-7B, and HMW-9B. The purpose for performing borehole geophysics was

to aid in stratigraphic interpretation and to aid in determining wellscreen locations. The results of the logging program have been plottedon the appropriate boring logs provided in Appendix A to this report. Abrief description of each Logging tool utilized as part of the siteinvestigation follows.

Temperature logs are continuous records of temperature versus depth ofthe fluid in a borehole. If there is no flow in or adjacent to aborehole, the temperature will gradually increase with depth due to thenatural geothermal gradient. If rapid flow occurs along a fracture,either upward or downward, the temperature of the water in the fracturemay be different from the ambient ground temperature. In suchinstances, the temperature log can indicate intervals of water-producingfractures.

The single-point resistance log is the simplest electric loggingsystem. A single lead electrode, attached to an insulated cable, islowered into the boring. The return path for the current flow isfurnished by the ground electrode, also made of lead. The single-point

resistance log is useful for geologic correlation because of its unique

2-10

AR3005I8

response to changes in lithology and the vertical detail obtained in

formations of low to moderate resistance. The single-point resistancelog is also sensitive to the presence of water-filled fractures.

The spontaneous potential log is a graphic plot of the small differencesin voltage that develop at the contact between the borehole fluid, thebedrock and/or soil, and the formation fluids. The spontaneous

potential is used to aid in geologic correlation and assessment of unitthickness. The spontaneous potential log was run in conjunction with

the single-point resistance log. As mentioned above, the single-point

resistance log is useful in identifying water-filled fractures. Thus,streaming potential may be generated in zones gaining or losing water,which can sometimes be detected on the spontaneous potential curve bysudden oscillations or by departures from the more typical response in aparticular environment.

Natural gamma logs are records of the amount of natural gamma radiationemitted. The principal use of natural gamma logs is for the

identification of lithology and stratigraphic correlation. This logproved to be a very useful tool for correlating lithology betweenborings for this investigation.

Fluid resistivity logs record the resistance to electric current of theborehole fluid. Logs of fluid resistivity provide data related to the

concentration of dissolved solids in the fluid column. Changes in fluidi . i . l

resistivity with respect to depth were interpreted as potentialgroundwater inflow zones into the borehole.

2.5.3 Permeability Tests

To aid in designing the monitoring wells installed at the HunterstownRoad Site, bedrock permeability tests were conducted in Borings HTB-1,

HTB-2, HMW-2A, and HMW-6A. The'permeability tests utilized a doublepacker system to isolate 5-1/2 foot test zones, one at a- time,

', ',! *

throughout the length of the borings as shown on Figure 2-5. The

2-11 .. ,

AR3Q05I9

packers were inflated with nitrogen to isolate the test zone and holdthe packer system in place. Once the packers were inflated, water waspumped into the test zone via a perforated pipe, and the volume of water

and the water pressure were recorded. Readings were generally taken atone-minute intervals. The test began with a ground, surface water

pressure of 15 psi, which was increased to 30 psi. The test wasterminated once the data indicated that the formation was "taking water"at a constant rate or if there was no water taken at 30 psi groundsurface water pressure. Before each use the packers and associated pipewere decontaminated as described in Section 2.7.3.

2.5.4 Fracture Trace AnalysisA fracture trace analysis was conducted to identify the location andgeneral orientation of fracture traces and other linear features, asobserved on satellite imagery and aerial photographs, which would relateto bedrock fractures, including faults, joints, bedding planes, etc.,that in turn could relate to groundwater flow. A literature search was

conducted which identified previous published work locating lineamentsand fracture traces by satellite. Fracture traces were independently" • . fidentified as part of this study from aerial photography at scales of1:24,000, 1:12,000, and 1:8,400. Stereo pairs of the photographs wereused to identify the fracture traces.

Once the fracture traces had been identified, field measurements ofjoint orientation were made from outcrops at and near the site using a

hand-held compass. These orientations were compared to those of thefracture traces. Results of the fracture trace analysis are discussedin Section 3.0.

2.6 SOILSGeotechnical information on soils was obtained from the boreholesdrilled at the site using procedures described in Section 2.5.Information pertaining to the various types of soils present at the site

2-12

AR300520

as well as their distinct characteristics was obtained from the SoilSurvey of Adams County, Pennsylvania, performed by the Soil ConservationService (SCS, 1967). \

2.7 GROUNDWATERThe groundwater investigation included installing and sampling 20

monitoring wells in boreholes drilled as part of this investigation.Placement of the screen section for each well was based on permeabilitytests, borehole geophysical logs, site stratigraphy, and direct

observations of flow. The locations of the wells are provided onFigure 2-4 and the details of well construction elements are provided inAppendix B. Details of the monitoring well installation, well

development, equipment decontamination procedures, and groundwatersampling are discussed in the following sections.

2.7.1 Monitoring Well Design :Monitoring wells were constructed with two-inch I.D. flush joint

Schedule 40 PVC riser pipe and two-inch I.D. Schedule 40 PVC screen withNo. 10 (0.010-inch) slots. Joints were sealed with 0-rings. Two-inch

I.D. stainless steel centralizers were installed at the top and bottomof the screened interval to center the screen section in the boring.PVC end caps were placed at the bottom of the screen and the top of theriser pipe. All materials used in construction were thoroughly steamcleaned prior to use. ;

For monitoring wells where the well screen was not placed at or near thebottom of the boring, the borehole was backfilled with pea gravel toapproximately five feet below the projected screen interval and a two-to three-foot bentonite seal was installed. The two-inch I.D. PVCscreen and riser pipe were then placed in the borehole, and Morie No. 1filter pack sand was placed around the screen. Care was taken not to

place the well screen directly on the lower bentonite seal. A bentoniteseal was placed above the filter pack material, and a cement-bentonite

2-13 !

AR30052I

grout was tremied to the ground surface. A four-inch square lockingsteel casing was placed over the PVC riser pipe and fixed in positionwith concrete.

i

I

2.7.2 Monitoring Well Development

Each monitoring well installed as part of this investigation wasi

developed using alternating surging and air lifting techniques. Surging

was accomplished by attaching a block which had a diameter just undertwo inches to a one-inch PVC pipe. The surge block was dropped rapidlyon the downstroke, forcing water contained in the well casing outthrough the screen and into the surrounding sand pack and formation. Onthe upstroke, water was lifted by the surge block, allowing the flow ofwater and fine sediments into the well screen. The residual sedimentswere removed from the wells using air lifting techniques. The air liftwa's powered by compressed nitrogen which was forced down 1/4-inchpolyethylene tubing to the bottom of the well and up the inside of a3/4-inch I.D. PVC discharge pipe. All development water was collectedand contained in 55-gallon drums until properly disposed off site at alicensed disposal facility.

2.7.3 Decontamination of Equipment

A decontamination area was established within site boundaries forcleaning drill rigs and associated equipment, monitoring well materials,and well development and packer test equipment. Prior to starting workat the Hunterstown Road Site and after completion of each boring, thedrill rig and associated equipment were moved to the decontaminationarea and steam cleaned. All PVC well screen, riser pipe, end caps, and

stainless steel centralizers were placed on plastic sheeting andthoroughly steam cleaned at the decontamination area prior to

installation in borings. Decontamination activities were conductedunder the technical direction of Rizzo Associates.

2-14

AR300522

^ , •; ORIGINAL.: : (Red)

2.7.4 Groundwater Sampling : FFollowing well installation and development, groundwater samples werecollected May 23 through 26, 1989 from the 20 monitoring wells installedat the Hunterstown Road Site. A duplicate, from Well HMW-8B, and anequipment blank were also collected during the sampling event. In

addition,, a trip blank (for VOC analysis only) supplied by LancasterLaboratories was included with the groundwater samples. The sampleswere sent to Lancaster Laboratories for analysis for the TCL organic andinorganic parameters, including cyanide. The laboratory results areincluded in Appendix D.

The primary consideration in sampling monitoring wells is to obtain asample considered representative of the quality of groundwater in the

surrounding formation. Water which has remained in the well for alengthy period may be stagnant and may have undergone some chemicalalterations, and may therefore be considered unrepresentative.Therefore, to safeguard against collection of a nonrepresentativestagnant water'sample, the standing water column in a monitoring wellwas removed (purged) before sampling. Prior to purging, the static

water level in each well was measured using an electronic M-scope orsounder to determine the well volume. A minimum of three well volumes

were then purged by bailing or pumping water from each well prior tosample withdrawal. Purge water from each well was collected andcontained in 55-gallon drums.

A well stabilization test was performed during the purging of eachwell. Temperature, pH, and specific conductance were measured aftereach half of a well volume had been removed. If, after purging threewell volumes, a set of readings was approximately equal to the previoustwo sets, the purging was considered complete.

Well purging equipment consisted of a clean stainless steel bailer withnew polypropylene rope or a portable pump system. The pump system

consisted of a compressed-air gas-drive positive displacement,

2-15

AR300523

stainless-steel submersible pump equipped with concentric polyethylenetubes for air supply and groundwater discharge. After purging, a samplewas collected from each well using the following stepwise procedure:

• A polypropylene rope was attached to a clean,bottom-loading, stainless steel bailer.

• The bailer was lowered slowly until it contactedthe water surface.

• • The bailer was allowed to sink and fill withminimal water surface disturbance.

• The bailer was slowly raised to the surface.

• The bailer was tipped to allow the sample toflow gently down the side of a precleaned, pre-preserved sample bottle with minimal entryturbulence. The volatile organic analysis vialswere filled first followed by the othercontainers for the remaining analyticalparameters.

t The above steps were repeated as needed toacquire sufficient volume for all samplecontainers.

• The specific conductance, pH, and temperaturewere measured and recorded.

The sample aliquot collected for metals analysis was filtered at thetime of collection, prior to preservation, using a 0.45-micron filter

The duplicate groundwater sample was collected from HMW-8B at the sametime and in the same manner as the initial sample. The equipment blank

Iwas collected on site using a clean bailer. To collect the equipmentblank, a bailer was filled with water supplied by the laboratory. Thewater (rinsate) was then transferred to the appropriate samplecontainers. The above steps were repeated until sufficient samplevolume was collected. Specific conductance, pH, and temperature were

2-16

AR300521*

ORIGINAL(Red)

measured and recorded at the time of collection. The sample.volume formetals analysis was filtered at the time of collection, prior topreservation, using a 0.45-micron filter.

Filled containers were placed in a cooler with ice during the sampling

period and while transported to Lancaster Laboratories. Samplecollection reports were maintained for all samples and have beenincluded as Appendix C.

Groundwater collected during well purging activities was contained in55-gallon drums until properly disposed at an off-site, licensed

treatment and disposal facility.

2.8 DEMOGRAPHY AND LAND USEDemography and land use of the property surrounding the Hunterstown RoadSite were assessed using information previously compiled for the site,the 1980 census, and a literature search. Aerial photography and visualobservations were also used to qualitatively evaluate the currentdemographic and land use environment.

2.9 ECOLOGY I . . . '! "'

The evaluation of ecology in the vicinity of the Hunterstown Road Sitewas conducted on the basis of a literature search and visualobservations. Field investigations were not undertaken to evaluate thissubject.

2-17i

AR300525

3.0 PHYSICAL CHARACTERISTICS OF THE SITE

3.1 SURFACE FEATURES

The Hunterstown Road Site is located in an area of generally low reliefwhere the, land surface slopes to the northwest with grades typicallyless than 5 percent (see Figure 1-2). Natural drainage in the vicinity

of the site is by means of three intermittent streams (designated as thej

East, Middle, and West Streams), which flow south to southwest. Uponmerging 1,200 feet south of Shealer Road, flow is to the southwest,

ieventually reaching Rock Creek, which is the main drainage control forthe Gettysburg area. The locations of these streams, the HunterstownRoad Site, and other physical features are shown on Figure 1-2.However, stream locations in the vicinity of Drum Burial Areas 1 and 2have been slightly altered by the 1988/1989 waste removal program.

3.2 METEOROLOGY./ CLIMATE

The climate in the Gettysburg area is mild and humid, with well-definedseasons. Average precipitation varies from month to month, but is, ingeneral, evenly distributed throughout the year. The long-term average

annual precipitation is 39.3 inches (Taylor and Royer, 1981). Much of

the summer rain comes as intense thundershowers of short duration.About one-tenth of the total precipitation is snow. The mean annual

• itemperature is about 52°F with a summer mean of approximately 72°F and awinter mean of 30°F.

Evapotranspiration, a collective term that describes evaporation fromwater bodies, wetted surfaces, and moist soil in combination with vaporthat transpires from plants, is related to temperature, length of the

growing season, the amount and timing of precipitation, and otherr-

climatological factors. The amount of water lost to evapotranspirationis greatest during the summer when temperature is greatest and plantsare in foilage. At this time, the evapotranspiration normally exceedsthe precipitation, causing a decrease in stream flow and a corresponding

3-1

AR3Q0526

drop in groundwater levels. This situation reverses during thewinter. Taylor and Royer (1981) report that average water loss to

• :fevapotranspiration in the site vicinity is about 24 inches, or 61percent of precipitation.

3.3 SURFACE WATER HYDROLOGY ' :The Hunterstown Road Site is located within the watershed of Rock Creek,

a small southward-flowing stream that joins Monocacy Creek, which inturn enters the Potomac River. Rock Creek is the only large stream thatheads in the Gettysburg plain, the relatively flat land corresponding tothe Gettysburg Basin, a geological province further discussed inSection 3.4. The East, Middle, and West Streams drain the HunterstownRoad Site on an intermittent basis.

Quantitative stream flow data were not available for Rock Creek. Thenearest gaging stations are located on Marsh Creek, which flows intoMonocacy Creek downstream from Rock Creek, and White Run, a tributary toRock Creek that enters southeast of Gettysburg. Neither of these

stations are not continuously monitored and average flow data are notavailable. However, Taylor and Royer (1981) estimate that annualdischarge in the county accounts for about 14.8 inches of annual

precipitation based on stream flow data obtained from other areas ofAdams County. This estimate is consistent with the 15.3-inch differencebetween average precipitation and evapotranspiration. Of this flow,Taylor and Royer (1981) estimate that about 8.9 inches originates asdirect surface runoff and that 5.9 inches is due to base flow fromgroundwater.

The watershed areas above Shealer Road for the West Stream, MiddleStream, and East Stream have been estimated by inspection of the USGStopographic map for the Gettysburg quadrangle to be approximately 0.14,0.12, and 0.20 square miles, respectively. Based on these areas, andusing the estimate of 14.8 inches of annual discharge, Long-term average

discharges in the three streams are expected to be 0.15, 0.14, and 0.21

3-2

AR300527

cubic feet per second (cfs), respectively. Due to their intermittentnature, all three streams are expected to have 10-year, 7-day low flowsof 0 cfs.

3.4 GEOLOGY

3.4.1 Regional Geologic Setting

The Huntertown Road Site is located within the Gettysburg Basin, one ofa number of discrete elongate sedimentary basins parallel to theAppalachian orogen in eastern North America (Figure 3-1). These basinsare of early Mesozoic age (Late Triassic and Early Jurassic) and arecomprised largely of continental clastic rocks (primarily "red beds")

and accompanying basic intrusive and extrusive igneous rocks referred tostratigraphically as the Newark Supergroup (Froelich and Olsen,1 1985).These basins formed by the rifting of the crust which took place whenNorth America and Europe began to drift apart, eventually to form the

I -Atlantic Ocean.

The Gettysburg Basin, like the Newark Basin to which it is connected,appears to be a half-graben structure, i.e., the northwestern border is

formed by faults with a predominantly normal movement and thesoutheastern border is formed as .a flexure. This causes the bulk of thesediments within the basin to exhibit a predominantly northwest dip

along strikes approximately parallel to the axis of the basin.

After rifting was initiated, continental sedimentation filled the

developing basin. Most of the sediment appears to have originated fromthe southeast and was deposited in a fluvial-lacustrine environment,with alluvial fans providing incursions of coarse-grained sediments from

the faulted northern border of the basin.k

Following deposition, the strata were tilted, uplifted and eroded so

that a representative portion of the entire section is exposed in anorthwest-dipping homocline. The dip of beds typically ranges from

about 10° to 35°, with a median of about 20°. The total projected

3-3

(Red]

aggregate thickness of the sediments, computed from the dips and widthof outcrops is about 23,000 feet. However, in no place does this totalthickness of strata occur (Stose, 1932).

The rifting of the crust which formed the Gettysburg Basin also allowed

for molten rock deep in the crust to migrate towards the surface. Mostof the rock is intrusive and is generally classified as diabase ordolerite, although local variations in composition are recognized.Where these rocks have intruded into the basin sediments they have atendency to form as tabular sheets which are at least partiallyconformable to the sedimentary bedding. Other intrusives, such as dikes

i , i :which cut across sedimentary bedding, and extrusive rocks are also foundwithin the basin, but are not as common as the tabular sheet intrusives.

In summary, the overall evolution of the Gettysburg Basin can bedescribed in terms of its development beginning with initial rifting

along pre-existing faults found along its northwestern border. Asrifting continued, continental sedimentation filled the evolving •basin. Intrusion of diabase accompanied at least the late stages ofsedimentation. As depicted in the hypothetical cross sections providedby Froelich and Gottfried (1985) -and shown on Figure 3-2, post-EarlyJurassic tilting and erosion produced the present—day land surface androck exposures. ; :

3.4.2 Local Geology

The rock exposed in the vicinity of the Hunterstown Road Site consistsof northwest dipping sediments of the Gettysburg Formation. Thisformation has been intruded by igneous rock primarily in the form ofsills, as is characteristic of igneous intrusives throughout theGettysburg Basin.

The largest mapped igneous body near the Hunterstown Road Site isreferred to as the Gettysburg sill (Figure 3-4). This rock mass trends

northeast and passes about 0.5 miles southeast of the site. The

3-4

AR300529

thickness of the sill is about 1,800 feet, assuming a typical outcropwidth of about a mile and a northwest dip of 20 to 25 degrees (Stose,1932). Assuming that this dip persists, the Gettysburg sill should bepresent at a depth of about 1,000 to 1,200 feet beneath the Hunterstown

iRoad Site. However, the intensity of contact metamorphism with localsediments, the presence of numerous intrusives at the site, and the

I -presence of magnetic anomalies over the Hunterstown Road area suggest

that the Gettysburg sill cuts across the bedding and is actually muchcloser to the ground surface. These observations are discussed in thefollowing paragraphs.

Figure 3-4 shows the locations of four geologic cross-sections. Thesecross-sections are presented on Figures 3-5 through 3-8. The thin

intrusives comprised of fine-grained igneous rock are fairly persistentacross the site. The thickness of the sills varies from less than one

foot to as much as eight feet, but generally averages two to fivefeet. Some intrusives do not correlate in cross section and it isunknown whether they are sills that pinch out or represent dikes whichcut across the bedding.

The igneous intrusives encountered at the site are light in color,

different from the dark diabase typically encountered in the Gettysburgarea. For this reason, thin sections were obtained from the rock corefrom Boring HTB-3. The main constituent of phenocrysts present in the

intrusives is olivine at various stages of alteration, and alteration ofisotropic serpentine. The ground mass is primarily pyroxenes with some

plagioclase and lesser amounts of hornblende and other mafics. A

granitic phase was also observed in some of the intrusivesencountered. It is primarily composed of microcline and olivine, with

other minerals unable to be identified due to their small grain size.One of the more highly weathered, fractured, and water bearingintrusions was comprised of serpentine, pyroxene, and abundant quartz.In general, the intrusives encountered at the Hunterstown Road Site are

3-5

AR300530

more acidic in composition than the Gettysburg sill, suggesting thatthey are independent of the main igneous body, or, more likely, are a

result of differentiation of the source magma.

Aeromagnetic mapping (Bromery, et al., 1961) shows the Hunterstown Road

Site to be located in an area of high magnetic intensity. Twoanomalously high areas of magnetic intensity, some of the highestrecorded for the entire Gettysburg area, are present near the site asshown on Figure 3-9. These magnetic anomalies may represent thepresence of a deep-seated source for the intrusives present beneath thesite, and possibly the source of the Gettysburg sill.

The igneous intrusives have altered the sedimentary rocks at theHunterstown Road Site by increasing their hardness and changing theircolor and chemical composition. Such effects are a product of thermalmetamorphism, where the changes are due to heat rather than heat andpressure or just pressure. In addition to the "baking" of the rock, hotwater contained within the sedimentary rocks and/or provided by themagma also alters the mineralogy. The soft argillaceous red shale,

typical of the Gettysburg Formation, is altered by this process to hardhornfels colored dark red to dark purple to black, as one moves closerto the instrusive. This color change is due to the reduction of theiron minerals. The contact metamorphism of the larger diabase masses

i - ?

generally penetrates wall rock a distance of 15 to 20 feet and.in somecases as much as 100 feet (Stose, 1932). All of the sedimentary rock

encountered in this investigation of the Hunterstown Road Site has beenaltered to hornfels, attesting to the proximity and pervasiveness of theigneous intrusives encountered at the site.

' • •

As discussed in Section 2.5, three diamond rotary continuous coreholesand "18 air-rotary borings were drilled at the site as part of thisinvestigation. To facilitate correlation between these borings, suitesof borehole geophysical logs were obtained. Due to the homogeneity of

i' i iS

the hornfels encountered at the site, the geophysical logs, in

3-6

AR30053I

particular the natural gamma log, offered the best information obtained

from this investigation to establish lithologic correlation. Geologicsections based primarily on the interpretation of the natural gamma logsare provided on Figures 3-5 through 3-8. The detailed boring logs andassociated geophysical logs are provided in Appendix A to this report.

|

Borings HMW-1B, HMW-2B, and HMW-3B were used in a three point problem to

calculate the attitude of bedrock at the Hunterstown Road Site. Thestrike and dip defined by these borings is N 41°E dipping 26°NW definingazimuths within the Universal Transverse Mercator (UTM) system, withnorth located less than 1.5 degrees counterclockwise of geographicnorth. Measurements from outcrops in the area show a fairly closeagreement to the borehole measurements. The measurements from the

boreholes are considered to be more reliable, as the strike and dipmeasured in this manner are likely to be more indicative of gross-structure.

The rocks of the site have been classified as hornfels, which vary incolor from medium to dark gray, purplish gray, and purplish brown. Thehornfels are generally hard, compact, nonlaminated rocks which wereproduced by contact metamorphism of siltstones and claystones. Numerous

igneous intrusions are also present, and in most cases appear to followthe bedding planes as sills. Igneous rock which was encountered butdoes not persist along the bedding planes, may be dikes which cut across

ithe bedding planes; but the borings did not offer sufficient evidence todemonstrate this.

The rocks encountered at the Hunterstown Road Site are fractured, asshown in the graphic discontinuities column of rock core borings HTB-1,

HTB-2, and HTB-3 (Appendix A). The rock core provides informationregarding the joint spacing, dip, and minerals present along jointopenings, but not the predominant strike of the joints.

3-7

AR300532

Joint orientation was measured in 16 joints encountered along a railroadcut 2,000 to 4,000 feet east of the Hunterstown Road Site. All jointsdipped steeply, between 73° and vertical. For this reason, the

orientations can be reasonably depicted by a joint frequency diagram asshown on Figure 3-10. The two predominant joint orientations are N 15°E

and N40°E. Other slightly less prominant orientations included N45°-50°E and N100°E. The joint azimuth frequency diagram for all jointsmeasured in the area on Figure 3-3 is provided on Figure 3-10 andfurther discussed in Section 3.4.3.

Two transverse faults have displaced the Gettysburg Sill southeast of

tha site (Figure 3-3). the net slip along these two faults is 1,900feet and 4,000 feet respectively. The presence of these two major fault

systems indicates that other faults are likely to be present near thesite. However, no evidence was encountered to suggest the localpresence of faults with large displacement of site stratigraphy.

3.4.3. Fracture Trace AnalysisA fracture trace is defined as a natural linear feature observable onaerial photographs or satellite imagery of a length less than one mile(Zall and Russel, 1979). Linear traces that are longer than a mile arecalled lineaments. A fracture trace analysis consists of mappingnatural linear features observed on the ground from aerial photographyand satellite imagery. The purpose of such an analysis relates to theobservation that the linear features, which may be identified on thebasis of color changes, topography, alignment of streams, etc., oftenrelate to fracture zones in the subsurface. Such fractures, in turn,may play a critical role in controlling groundwater flow.

A literature search revealed fracture traces for the entire southernportion of the Gettysburg Basin identified by C.R. Wood and D.R. Milleras published in Wood (1980). Many of the fracture traces identified bythese researchers were also identified during this study,. However, Wood

(1980) did not identify fracture traces in the immediate vicinity of the

3-8

AR300533

Hunterstown Road Site. Lineaments identified based on satellite imageryhave been reported by Kowalik (1975) for the entire state ofPennsylvania. However, these were not further evaluated, as the onlyones identified in the Gettysburg area were of marginal quality.

In this study, fracture traces and lineaments were mapped over the areashown on Figure 3-4 on the basis of aerial photographs taken in February1968 at a scale of 1:24,000. The Hunterstown Road Site was alsoevaluated using aerial photographs taken in 1987 at a scale of 1:8,400

and in 1984 at a scale of 1:12,000. A total of five local fracturetraces were identified in this study (Figure 3-5). Two significantfracture traces trending approximately N15°E were identified, along withtwo fracture traces trending approximately N55°E. One fracture trace oflimited extent was mapped trending N150°E. Each of the fracture tracesidentified at the site is closely reflected in the joint patterns

measured in outcrop near the site.

The fracture traces and lineaments identified on Figures 3-3 and 3-4 aredepicted in the azimuth frequency diagrams provided on Figure 3-11. Thetwo regional trends at N20°E and N35°E appear to be due to bedding. Thestrongest single fracture trace/lineament trend is N120°E. This trendis not reflected in the joint pattern measured at the site nor in any ofthe joints measured in the area covered by the fracture trace, but couldbe due to the strike-slip faulting that developed perpendicular, to theaxis of the Gettysburg Basin as a result of rifting.

In summary, the fracture traces and lineaments assessed in this studyappear to mainly reflect bedding, with a trend nearly perpendicular tothe bedding of unknown origin, but which could be strike-slip

faulting. Although the joint azimuths appear to be reflected in thepattern of fracture traces, most of the fracture traces or lineaments do

not appear to be joint controlled.

3-9

AR30053U

3.5 SOILS :The natural soils of the Hunterstown Road Site were classified by theSoil Conservation Service (USSCS, 1967) as part of the Klinesville-Abbottstown-Readington-Penn Association. These soils are moderatelyeroded, gently to moderately sloping, very shallow to deep shaley soils

primarily derived from the underlying Triassic red beds. These soilsvary from somewhat poorly drained to well drained.

Results from the test pits performed in 1987 by REMCOR and the Phase IRemedial Investigation subsurface explorations indicate that naturalsoil encountered was typically two to twenty feet thick consisting ofred brown silty clay/clayey silt with rock fragments.

3.6 GROUNDWATER :3.6.1 Regional Groundwater Setting

Several studies of regional groundwater conditions covering theGettysburg area have been published, including Hall (1934), Wood (1980),Taylor and Royer (1981), and Lehigh University (1982). Groundwater is aresource in the Gettysburg area utilized by rural, municipal, andindustrial consumers and considerable effort has been made to evaluateits occurrence. Subsequent sections discuss regional groundwatercharacteristics in greater detail.

3.6.1.1 Water Bearing Characteristics of Gettysburg Basin Rocks: TheGettysburg Formation is one of the principal aquifers within theGettysburg Basin. Reported well yields range from 1 to 630 gallons perminute (gpm) with medians for domestic and nondomestic wells of 12 gpmand 69 gpm, respectively (Taylor and Royer, 1981). Wood (1980) reportsa median well yield of 144 gpm for the shales and 50 gpm for thesandstones within the Gettysburg Formation, with median specificcapacities of 2.0 gpm/ft and 0.47 gpm/ft, respectively.

3-10i i

AR300535

ORIGIN.Af

Outcrops of diabase occur extensively in the Gettysburg Formation.

Wells in the diabase rarely yield sufficient water for a domesticsupply. Fractures in the diabase close rapidly with depth and do notyield significant amounts of water below 150 feet (Wood, 1980). Thevery low permeability of the diabase implies that this rock may ineffect act as a barrier to groundwater flow within the GettysburgFormation.

The rocks of the Gettysburg Formation have little effective primary

porosity and water is principally stored and transmitted through aninterconnected system of fractures consisting of bedding plane partingsand steeply dipping joints discussed in Section 3.4. The degree towhich fractures have developed is interpreted by Wood (1980) to dependlargely on the composition and texture of the rocks and the intensity of

the forces that have acted upon the rocks. Examination of outcropsshows that where there are thin, hard beds of sandstone between beds ofsoft shale, the shales tend to deform under stress without breaking,

whereas the hard sandstone tends to develop fractures and joints.However, in thick sandstones, fewer joints are developed. Thisrelationship suggests that the Gettysburg Formation should tend to have

' i'

alternating tabular aquifers dipping to the northwest. Evidence for

this opinion is based on the observation of pumping tests in theGettysburg area that the maximum drawdown during pumping is parallel to

.the strike of bedding (Wood, 1980). The degree of interconnectionbetween aquifers would depend on the continuity of fracturing and the

presence or absence of igneous intrusives.

Regional shallow groundwater occurs as an unconfined water table flowi-

system. The configuration of the water table is generally a subdued

replica of the land surface and water moves slowly from upland recharge' . .*areas to discharge points in adjacent stream valleys. However, water in

the unconfined aquifer can recharge thin artesian (confined) aquifers in

3-11

AR300S36

ORIGINAL(Red)

the more permeable northwest-dipping units of the Gettysburg Formation

and fresh water can be produced from multiaquifer systems from depths asgreat as 1,000 feet or more (Wood, 1980).

, i --*3.6.1.2 Groundwater Recharge; The amount of groundwater rechargeoccurring at any given time is a complex function of temperature,rainfall, amount of vegetative cover, and other factors. Maximuminfiltration occurs from late fall to early spring when water lossesthrough evapotranspiration are minimal. The groundwater reservoir is

usually fully charged by December (Taylor and Royer, 1981). Decliningwater levels occur when discharge from the groundwater reservoir exceedsrecharge, either from natural base flow or pumping. Typically,groundwater levels exhibit a decline from March through August, whenevapotranspiration is greatest.

Long-term average recharge is estimated to be approximately six inchesper year in order to balance with the base flow contribution to totalstream discharge, as discussed in Section 3.3.

3.6.1.3 Groundwater Quality; Water from the Gettysburg Formation ischiefly of the calcium bicarbonate type with a median dissolved solidconcentration (hardness) between about 150 and 200 milligrams per liter(mg/1). Except for zinc, which was present at concentrations of 0.1 to3.3 mg/1 in samples reported by Wood (1980), trace elementconcentrations are generally very. low. High sulfate values areoccasionally encountered naturally in the groundwater, especially withinconfined aquifers where the presence of sulfate indicates a longerresidence time and greater solution of sulfate-bearing minerals in water

- -- ; ; iinvolved in a deep flow system. Very deep wells have also encounteredbrine within the Gettysburg Basin (Root, 1988).

3.6.1.4 Groundwater Usage; As of 1979, the total water use in AdamsCounty averaged 8.7 million gallons per day and this rate wasincreasing. Of this amount, 79 percent was supplied by groundwater and

3-12 ;

AR300537

ORIGINAL

future increases have been projected to be met by groundwater (Taylorand Royer, 1981). The largest use of groundwater is for domesticsupplies, with public supplies second.

The largest single user of groundwater in the Gettysburg area is theMunicipality of Gettysburg, which currently uses three wells to supply

40 percent of the town's water supply. These wells are all within theGettysburg Formation. The nearest of these wells is about 1.2 milessouth-southwest of the site. Residences not served by the Gettysburg

municipal wells usually rely on private wells.

3.6.2 Site GroundwaterThe Hunterstown Road Site is located in an area of moderate groundwaterusage. As discussed in Section 1.0, previous investigations detectedthe presence of VOCs in groundwater samples from nearby residentialwells.

In order to obtain more information on site-specific groundwaterconditions, a total of 20 monitoring wells (ten nests of two wells each)were installed, as shown on Figure 2-4. Details of the wellinstallation were provided in Section 2.7 and Appendix B. The lowerlimit of the monitored zone .in the shallow wells ranged from 30 to 62feet below ground surface. The upper limit of the monitored zone in thedeep wells ranged from 70 to 225 feet below ground surface. Four hydro-geologic sections of the site are shown on Figures 3-11 through 3-14.

3.6.2.1 Shallow Wells: A total of 10 monitoring wells (HMW-1A throughHMW-10A)•were installed in the shallow (depths less than 60 feet from

I

the ground surface) bedrock at the site. Each of the wells is screenedin the hornfels and some intercept igneous intrusives. Elevations ofmonitored zones (screen plus sand pack) range from 495 to 515 feet above

mean sea level (MSL).

3-13

ORIGINALTed)

Water elevations for June 28 and July 20, 1989 in these ten wells arepresented in Table 3-1 and contoured for June 28, 1989 on Figure 3-15.Based on these contours, the overall horizontal direction of shallowgroundwater flow is west to southwest, towards Rock Creek. Based on acomparison of groundwater and surface water levels, it appears that theEast Stream and the upper reach of the Middle Stream (north of theaccess road) are in hydraulic connection with the shallow bedrock flow,but that the West Stream and lower reach of the Middle Stream are not.The pond near Drum Burial Area 1 appears to have only a minor effect

upon water levels, and shallow groundwater flow in that area appears tobypass the West Stream.

The horizontal component of the hydraulic gradient in the shallowbedrock zone varies from approximately 0.025 in the vicinity of HMW-4Aand HMW-1A, flattening out to 0.01 across the South Cornfield, between

HMW-2A and HMW-6A and steepening again to 0.05 across Drum Burial Area 1.

Bedrock permeability test data were obtained from Borings HTB-1, HTB-2, •HMW-2A, and HMW-6A. The most permeable zones were generally observed tobe within the upper 22 feet of bedrock. Hydraulic conductivity values

calculated for test zones 5.5 feet in length in the upper portions ofthese boreholes ranged from less than 6 x 10 to 1 x 10 centimetersper second (cm/s) (Figure 3-14).

For the purpose of preliminary calculations, the arithmetic meanconductivity in each borehole was calculated. The geometric mean ofthese average conductivities was then taken as a rough measure of thelarge-scale effective homogeneous conductivity of the shallow aquifer onsite. This goemetric mean is 4 x 10 cm/s.

Based on this average hydraulic conductivity and the gradient of 0.01across the South Cornfield, the average horizontal specific dischargethrough the upper, weathered portion of the bedrock is expected to be

— 7 ' *1 * *approximately 4 x 10 cm/s, or 10 feet per day (ft/d). The actual

3-14

AR300539

ORIGINAL(Red)

seepage velocity associated with this fluid flux depends strongly uponthe porosity of the formation. Typical values for bedrock range from0.1 to 2 percent. Using this range in porosities, the seepage velocity

i

of groundwater in the shallow bedrock regime is expected to range from2 x 10~6 to 4 x 10~4 cm/s, or 0.05 to 1 ft/d. This is the average

i"

velocity at which dissolved constituents would be transported in theabsence of environmental attenuation factors such as adsorption,diffusion, dispersioji, and degradation.

•

3.6.2.2 Deep Wells: Ten deep (depths greater than 70 feet) monitoringwells (HMW-1B through HMW-10B) were installed in the bedrock on site.

Each of the wells is screened in the hornfels with some screened acrossigneous intrusives. Elevations of the monitored intervals range from280 to 470 feet above mean sea level (MSL).

Water levels (elevations) for June 28 and July 20, 1989 in the ten deepmonitoring wells are presented in Table 3-1 and shown for June 28, 1989

on Figure 3-16. The levels are not contoured because the flow is notconsidered two-dimensional.

The general pattern of piezometric levels in the deep wells consists ofhigh heads (523 to 545 feet, MSL) along the eastern portion of the site,an area of relatively uniform low head (489 to 493 feet, MSL) headacross the central portion of the site from the Lagoon Area toHunterstown Road, and another area of relatively uniform low head,

albeit at a somewhat higher level (512 to 516 feet, MSL), in the westernportion of the site.

In the vertical plane, the general pattern of piezometric levels isrelatively uniform with lower, relatively uniform levels in the deepzone producing an overall vertically downward gradient as shown onFigure 3-14). However, the hydraulic conductivity of the formation isexpected to be extremely anisotropic, with maximum bulk jconductivities

3-15

AR3005i»0

parallel to the bedding planes perhaps 100 to 10,000 times the minimumconductivities orthogonal to the bedding planes. Assuming that the dipof the bedding planes is 26° (see Section 3.4.2), a vertically downwardgradient in a formation with an anisotropy ratio of 100 would produceflow lines with a dip of 27.1°. Under an anisotropy ratio of 10,000,

the angle, between the bedding planes and the flow lines would be muchless than one degree. Therefore, even though the hydraulic gradient isvertically downward, flow is expected to occur essentially along thebedding-planes, occasionally crossing the bedding through open near-vertical joints or locations where the more impermeable igneousintrusives may not persist. :;

There is a large difference in water levels between HMW-4B and HMW-3B.This difference is difficult to explain unless a barrier to flow existsat depth in the vicinity of the Borrow Area and Lagoon Area. It ispossible that an igneous intrusive dike may exist in that area. Thiswould be consistent with the general location of the aeromagneticanomaly in that area and the intensity of thermal metamorphism in thesedimentary beds observed in the field investigation.

It should be noted that the existence of such a dike or other barrier isspeculative. However, such a feature in this area may also serve to

explain an anomaly in the distribution of dissolved contaminants, asdiscussed in Section 4.1.3.

In the eastern portion of the site, piezometric levels in Wells HMW-8Bthrough HMW-10B indicate that flow is occurring westward, towardsHMW-9B. The difference in elevations between this area and the waterlevels in the South Cornfield could indicate another dike or couldindicate a groundwater divide, with some flow occurring back towards the

east". In the latter case, there may be a sink somewhere just east ofHunterstown Road. The fracture trace correlating with the Middle Streammay constitute a preferred flow path for the area between HunterstownRoad and the Borrow Area, possibly conducting flow to the southwest.

3-16

AR3005UI

The possible existence of such a fracture, in conjunction with thepossible dike between HMW-3B and HMW-4B discussed above, could explainwhy piezometric levels between HMW-6B and HMW-3B are so uniform and somuch lower than those in surrounding areas. In such a scenario, thearea between the barrier and the sink would be essentially drained, atleast to .the level of the heads within the fracture. Because additionalrecharge from the east would be prevented by the dike, little horizontalflow could occur in that area. It should be noted, though, thatvertical flow is still possible.

Reginally, deep groundwater at the site appears to flow northwest towardRock Creek.

j •

3.7 DEMOGRAPHY AND LAND USEAccording to the U.S. Census for 1980, 68,282 people reside in AdamsCounty. Additional information was gathered by using 1973 photorevised

i

USGS Topographic Quadrangles for Gettysburg, Biglerville, Arendtsville,and Fairfield to count the number of houses within a 1/4, 1, and 3 mileradius of the Hunterstown Road Site and assuming four people to ahousehold. Based on this assessment, approximately 88 people livewithin 1/4 mile, 1,172 people live within one mile, and 7,956 people

live within a three-mile radius of the site.

Land use in the area near the Hunterstown Road Site is agricultural,commercial, and residental. Rock Creek is used for recreationalpurposes, primarily fishing. Rock Creek also serves as a dischargepoint for the Gettysburg Sewage Treatment Facility.

3.8 ECOLOGY

South-central Pennsylvania is charcterized as an area covered withrugged, wooded ridges rising from broad farming valleys. Tree coverconsists of broad-leafed, deciduous varieties, particularly hickory,

3-17

AR30Q5t*2

chestnut, walnut, and remnants of the Appalachian Oak Forest (USSCS,

1965). Vegetation in the areas not farmed consists mostly of low brushycover. The portion of the site east of Hunterstown Road was formerlyfarmland.

The Gettysburg area supports an abundant small and big gamepopulation. Small game includes cottontail rabbits, ringneck pheasants,

ruffed grouse, doves, squirrels, quail, woodchucks, and raccoons. Biggame is limited to an overpopulation of white-tail deer. Common speciesof amphibians and reptiles located in the area include the eastern woodbullfrog, northern dusky salamander, eastern milksnake, and northernfemce lizard. Rock Creek has been designated a warm water fisheryaccording to Chapter 93 of the Rules and Regulations of the Pennsylvania

Department of Environmental Resources. The Gettysburg area has not beenidentified as the habitat of any species included on the Pennsylvaniaendangered species list (Wolf, 1981).

3-18

AR3005i*3

(Pad)4.0 CHEMICAL CHARACTERIZATION

This section describes the results of the program of environmentalsampling and analysis program (Section 2.0). All samples specified inthe Work Plan were analyzed for the full TCL/TAL parameters, asspecified in the Quality Assurance Project Plan (QAPP). As described in

Section 2.0, additional samples were taken which were not specified inthe Work. Plan, including a sample of the cornfield sludge (analyzed only

!

for inorganics and volatiles), and soil samples from the excavationscreated during waste removal project from Drum Burial Areas 1 and 2

i ~ i(grab samples analyzed for volatiles and composites analyzed for fullTCL/TAL parameters).

-Other parameters for which analyses were performed included asbestos for

the sample from the Borrow Area and field parameters (pH, specificconductivity, and temperature) for aqueous matrix samples.

Samples collected at the Hunterstown Road Site were submitted toLancaster Laboratories, of Lancaster, Pennsylvania, for analysisin accordance with the QAPP. The QAPP set forth data qualityobjectives, and established sample collection strategies, data analysisprocedures, and other procedures to ensure that the data quality

objectives were met. A Quality Assurance (QA) Data Validation SummaryReport for the Phase I quality control data is being submitted as aseparate document. This report details the results of performance andsystem audits, quality control problems encountered, corrective actionstaken, and QAPP modifications, if any.

The laboratory data is presented in Appendix D. Where results aresummarized in the following sections, concentrations in solid matrix

samples are reported on a dry-weight basis.

4-1

AR3005M

4.1 RESULTS OF ANALYSES

4.1.1 Potential Source AreasSoil samples were collected from potential source areas to identifycontaminants present, if any, provide an indication of the extent ofcontamination, and evaluate whether migration from these areas has

occurred* These potential source areas include:

o Borrow Area;o Lagoon Area;o North and South Cornfields;o Stressed Vegetation Area;o Drum Burial Area 1; ando Drum Burial Area 2.

The locations of samples from these areas were shown on Figures 2-1and 2-2. The background sample, SS-BG, was taken from a cornfield alongHunterstown Road 0.3 miles northeast of the site.

„-f - .j ..i. . - .4.1.1.1 Borrow Area: One composite soil sample, SS-1, was collectedfrom the Borrow Area. The results of the analysis for inorganics are

summarized in Table 4-1. The results of the analysis for organics aresummarized in Table 4-2. "

Six metals were detected in SS-1 at concentrations significantly higher. M i '

than in Background Sample SS-BG: lead, copper, magnesium, zinc,beryllium, and sodium. Lead (336 ppm) and-copper (70 ppm) were detectedin Sample SS-1 at concentrations 12 and 9 times higher than in thebackground sample (28.0 and 8 ppm, respectively). Magnesium (8,090 ppm)and zinc (129 ppm) were present in SS-1 at concentrations 4 and 3 timeshigher than SS-BG (2,100 and 41 ppm). Beryllium and sodium were notdetected in the background sample, but were found in SS-1 atconcentrations of 1.2 and 69 ppm, respectively.

The only organic compound detected in SS-1 was methylene chloride, at 20

ppb. However, that compound was found in the background sample, SS-BG,at 28 ppb. It should be noted that methylene chloride, especially the

4-2 .!

AR3QQ5l*5

levels detected on site, is commonly a laboratory-induced artefact.Therefore, the presence of methylene chloride in the sample from theBorrow Area is not considered related to site waste disposal activities.

Sample SS-1 was also analyzed for asbestos via polarized light

microscopy. Asbestos was not detected in the sample. Nineteen percentof the sample was characterized as fibrous, and that was identifiedas cellulose (i.e., paper).

The results appear to indicate that the Borrow Area is not contaminatedwith organics compounds or asbestos, and that the removal of the drums

and piles of asbestos from that area has been effective. Elevatedlevels of some metals, particularly lead and copper, remain.

4.1.1.2 Lagoon Area: 'One composite soil sample, SS-2, was collectedfrom the Lagoon Area. The results of the analyses for inorganics andorganics are summarized in Tables 4-1 and 4-2.

Five metals were present in SS-2 at concentrations significantly higherthan in the background sample: lead, copper, chromium, beryllium, andsodium. Lead (at 118 ppm), copper (at 60 ppm), and chromium (at 72 ppm)were present at concentrations exceeding background by factors of 4, 8,

and 3, respectively. Beryllium and sodium were not present in thebackground sample, but were found in SS-2 at concentrations of 0.9 and140 ppm, respectively.

The only organic compound detected in SS-2 was methylene chloride, at 20ppb. However, that compound was found in the background sample, SS-BG,at 28 ppb. Therefore, the presence of methylene chloride in the samplefrom the Lagoon Area is not considered related to site waste disposalactivities.

4-3

AR3005if6

4.1.1.3 North and South Cornfields: The results of inorganic andorganic analyses for the six cornfield samples (SS-3 through SS-8) andthe duplicate (SS-5D) are summarized in Tables 4-1 and 4-2.

Sample SS-3 contained higher metal concentrations than any othercornfield sample. Metals observed included copper, zinc, lead,

chromium, calcium, mercury, sodium, cadmium, selenium, and silver.Copper concentrations in samples SS-4 through SS-8 were higher thanbackground (8 ppm) by a factor of up to approximately 10, and in sample

SS-3 by a factor of approximately 100, at 702 ppm. Zinc concentrationswere also consistently higher than background level of 41 ppm in samplesSS-4 through SS-8 (ranging from 77 to 200 ppm), but were highest inSS-3, at 585 ppm. Lead concentrations were significantly higher thanbackground (28.0 ppm) in the samples from the North Cornfield (SS-6,SS-7, and SS-8), ranging from 173 to 246 ppm, and in SS.-3, whichcontained 1770 ppm lead. Chromium, found in the background sample at22 ppm, was found in samples SS-4 through SS-8 in concentrations ranging

from 34 to 62 ppm, and in SS-3 at 313 ppm. The only detections of

calcium and mercury elevated with respect to background were in SS-3, at

6460 and 0.51 ppm, respectively. Sodium was not detected in the

background sample, but was found in samples from five locations rangingfrom 60 to 240 ppm in SS-3. Three other metals, cadmium, selenium, andsilver, were not detected in SS-BG and detected on site only in SS-3,

although at low concentrations.

Barium, beryllium, and cyanide were the only inorganics detectedin cornfield samples at concentrations significantly exceedingbackground, but which did not exhibit maximum levels in SS-3. Bariumwas detected in the cornfield composite samples at concentrationsranging from 170 ppm in sample SS-4 to 950 ppm in sample SS-7,consistently higher than the background concentration of 64 ppm.

Beryllium was not detected in SS-BG, but was found in four cornfieldsamples in a narrow range of 0.6 to 0.8 ppm. Cyanide wa-s detected only

once, in SS-8, at 0.07 ppm.

4-4

AR30(J5lf7

During the collection of the composite samples from the cornfields, it

was noted that at numerous locations a white sludge material was foundat varying depths from the ground surface. A sample of this material,the "Cornfield sample," was collected from the area of SS-5 andsubmitted for TAL metals and TCL volatiles analyses. Concentrations ofbarium (7,030 ppm), calcium (11,900 ppm), cobalt (169 ppm), lead (6,550ppm), nickel (294 ppm), sodium (2,230 ppm), and zinc (2,940 ppm) wereelevated with respect to all other cornfield samples, including SS-3.Concentrations of chromium (65 ppm) and copper (188 ppm) were less than

in SS-3 but greater than in the other cornfield samples. Theconcentrations of cadmium (1.2 ppm) and mercury (0.31 ppm) wereapproximately equal to those in other samples.

•

Table 4-2 presents the results of organic analyses of the cornfieldsamples. Of the volatiles, one ketone (acetone), one aromatic

hydrocarbon (toluene), and three chlorinated aliphatic hydrocarbons(methylene chloride, trichloroethene, and tetrachloroethene) weredetected. Of these, however, acetone and methylene chloride weredetected in higher concentrations in the background sample than in SS-3through SS-8. Methylene chloride and acetone were present in samples,including the background sample, at concentrations that are relativelylow and uniform. It should be noted that methylene chloride andacetone, especially at the levels detected, are commonly laboratory-

induced artefacts. Thus, these compounds may not be representative ofsite waste disposal activities.

Trichloroethene (TCE), tetrachloroethene (PCE), and toluene weredetected only in SS-3, at concentrations of 11, 6, and 14 ppb,respectively. PCE was also detected in the background sample at10 ppb. Volatiles were not detected in the Cornfield Sample.

4-5

AR3005U8

One semivolatile, bis-(2-ethylhexyl) phthalate, was found in the

cornfield samples, at 0.42 ppm in SS-3. One pesticide, DOT, was foundin the cornfield samples, at 29 ppb in SS-7. The occurrence of DOTcould be related to past agricultural uses of the site and not to wastedisposal activities.

In general, where organics are found in the cornfields they are found inthe vicinity of SS-3, and in very low concentrations.

4.1.1.4 Stressed Vegetation Area: Tables 4-3 and 4-4 summarize theresults of the inorganic and organic analyses of the five grab samplesfrom the Stressed Vegetation Area.

Maximum concentrations of inorganics in the Stressed Vegetation Areawere generally found in Samples SV-1 and SV-4, from the southern portion

of that area. Sample SV-2 also contained levels of some metals whichwere elevated above background.

Chromium was highly elevated over levels in the background sample (22ppm in SS-BG) in SV-1 at 8,590 ppm and in SV-4 at 10,000 ppm (or 1

percent). Lead levels in SV-1 and SV-4 were also high, at 54,300 and24,400 ppm. The concentration of lead in SV-2 was 1,820 ppm, elevatedwith respect to the background level of 28.0 ppm. The copper

concentration in SV-1 was 2,820 ppm and in SV-4 was 7,180 ppm, ascompared to the background of 7 ppm. Copper concentrations in SV-2 (889ppm) and SV-3 (122 ppm) were not as high as in SV-1 and SV-4, but were

still elevated with respect to background. Elevated concentrations ofzinc were also found in SV-1 through SV-4 (547, 312, 207, and 1,030 ppm,respectively) compared to background

(41 ppm). Barium was detected in the background sample at 64 ppm, butwas found in SV-1 at 1,100 ppm and in SV-4 at 1,530 ppm.

4-6 ;

AR3Q05l*9

Antimony and mercury were not detected in SS-BG and were found only inSV-1 and SV-4 at 92 and 73 ppm for antimony, and 1.5 ppm mercury forboth. Cyanide was also undetected in the background sample, but wasfound in SS-1 at 2.0 ppm, in SV-3 at 0.16 ppm, and in SV-4 at 1.7 ppm.

Volatile .organic compounds detected in soil samples from the StressedVegetation Area include a ketone (acetone), an aromatic hydrocarbon

(toluene), six chlorinated aliphatic hydrocarbons (methylene chloride;1,1-dichloroethane, or 1,1-DCA; 1,1,1-trichloroethane, or TCA;trans-l,2-dichloroethene, or 1,2-DCE; trichloroethene, or TCE; andtetrachloroethene, or PCE).

a

The only organic compounds detected in SV-2, SV-3, and SV-5 were acetone

(up to 25 ppb) and methylene chloride (up to 33 ppb), both of which werealso found in the background sample at 26 and 28 ppb, respectively. Forthe reasons discussed above, the occurrence of these compounds in thesesamples may not be representative of actual conditions in the areas fromwhich the samples were obtained. For this reason, the occurrences of 53ppb acetone in SV-1 and 29 ppb acetone and 36 ppb methylene chloride inSV-4 are also not considered significant.

Sample SV-4 contained all eight volatile organic compounds detected inthe stressed vegetation area, including 509 ppb TCA and 93 ppb TCE, witha total concentration of chlorinated aliphatic compounds (not counting

methylene chloride) of 699 ppb. Sample SV-1 contained 371 ppb totalchlorinated aliphatics, including 194 ppb TCA and 129 ppb TCE.

The only other organic compounds detected in soil samples from thestressed vegetation area were the pesticides ODD and DOT. These were

both found only in SV-1, at concentrations of 229 and 670 ppb. Theoccurrence of these compounds on site may be related to pastagricultural uses rather than to waste disposal activities.

4-7

AR300550

ORIGINAL(Red)

4.1.1.5 Drum Burial Area 1; Table 4-5 summarizes the results of theinorganic analyses of the four post-excavation composite samples from

Drum Burial Area 1. Tables 4-6 through 4-9 summarize the results of theorganic analyses of the four composite and 32 grab samples from thatarea by section. Figure 2-2 presents the locations of the sampling

stations.

Eight metals were detected in the composite soil samples from DrumBurial Area 1 in concentrations elevated with respect to backgroundincluding barium, beryllium, iron, magnesium, nickel, potassium, silver,

and sodium. In general, those metals which exceeded background levels

wece not the same as those which were present in very highconcentrations at other source areas. In addition, these metals aregenerally considered naturally-occurring.

Barium concentrations ranged from 112 to 185 ppm, as compared to thebackground level of 64 ppm. Beryllium, while not detected in thebackground sample, was found in concentrations up to 2.11 ppm. Iron wasfound in SS-BG at 18,600 ppm while samples from Drum Burial Area 1

contained 35,300 to 50,800 ppm. Magnesium levels in these samplesranged from 11,500 to 17,800 ppm (background was 2,100 ppm). Theconcentration of nickel in SS-BG was 9 ppm, whereas nickelconcentrations in the excavation ranged from 40.9 to 48.1 ppm.Potassium concentrations ranged from 2,630 to 7,150 ppm, as compared tothe background level of 645 ppm. Silver and sodium were not detected inSS-BG, but were found in the composites at up to 1.2 and 372 ppm,respectively.

• ! "f ,. -

Volatile organic compounds detected in the post-excavation samples fromDrum Burial Area 1 included three ketones (acetone, 2-butanone, and

4~methyl-2-pentanone), three aromatic hydrocarbons (toluene,ethylbenzene, and xylenes), and six chlorinated aliphatic hydrocarbons(methylene chloride; 1,2-dichloroethane, or 1,2-DCA; 1,1-,2-trichloroethane,or 1,1,2-TCA; 1,2-DCE; TCE; and PCE).

4-8•i ;»

:AR30055I

Acetone was detected in 21 of the 32 grab samples. In 20 of thosesamples, the concentrations ranged from 12 to 490 ppb; in the deepsample from station ID, the concentration was 27,000 ppb. 2-Butanone(also known as methyl ethyl ketone, or MEK) was detected in 11 of the 32grab samples. In nine of these samples, the concentrations ranged from12 to 130 ppb. At Station 4C (near the southern end of the excavation),the concentration in the shallow sample was 780 ppb and theconcentration in the deep sample was 1,300 ppb. The compound4-methyl-2-pentanone (also known as methyl isobutyl ketone, or MIBK) wasdetected in six of the grab samples, at concentrations ranging from 12to 93 ppb.

Aromatic hydrocarbons were detected in 12 of the 32 grab sample's, with a

wide range in total concentrations, from 8.7 to 418,700 ppb. In somesamples, xylenes contributed from 84 to 98 percent of the totalconcentration. In the northern end, shallow and deep samples from

Station ID contained 357,000 and 200,000 ppb, respectively. The deepersample from Station 1C contained a total aromatics concentration of117,200 ppb, but the shallow sample at that station contained no

aromatics. In the southern end, the shallow sample from Station 3D- I

contained 75,100 ppb total aromatics while the deeper sample at thatstation contained only 1,840. ppb total aromatics. At Station 4Bdecreasing levels with depth were also observed, with 418,700 ppb in theshallow sample and 51,100 ppb in the deeper sample.

•Methylene chloride was detected in 14 of the 32 grab samples from DrumBurial Area 1, at concentrations up to 34 ppb. Because that compoundwas found in the soil background Sample SS-BG at a similarconcentration, and because methylene chloride is commonly a laboratory-induced artefact, its occurrence in these samples may not berepresentative of actual conditions in the excavation. Therefore,further consideration of chlorinated aliphatic hydrocarbons will belimited to ethanes and ethenes.

4-9

AR300552

Chlorinated aliphatics other than methylene chloride were detected in 13grab samples. In 11 of those samples, total concentrations ranged from7.8 to 91 ppb. At Station 1C, the deep sample contained 1,107 ppb oftotal chlorinated aliphatics, while they were not detected in theshallow sample. (As stated above, aromatics also followed this patternat this station.) The sample with the highest concentration ofchlorinated aliphatics was the shallow sample at Station ID, where

15,000 ppb of PCE was found.

In general, areas with significant concentrations of volatile organiccompounds appear to be localized in the vicinity of Stations 1C, ID, 3D,and 4B.

The only semivolatile organic compound detected in the composite sampleswas naphthalene, found at 2.21 ppm in Sample COMP-1. No pesticides or

PCBs were detected in the composite samples from Drum Burial Area 1.1' '• !

4.1.1.6 Drum Burial Area 2: Tables 4-10 and 4-11 summarize the results

of the inorganic and organic analyses of the samples from Drum Burial

Area 2.

Eight metals were detected in the post-excavation composite soil samplesfrom Drum Burial Area 2 in concentrations elevated with respect tobackground: aluminum, barium, beryllium, magnesium, nickel, potassium,sodium, and zinc.

Beryllium and sodium were not detected in the background Sample SS-BG,

but were' found in the excavation at up to 2.06 and 555 ppm, respectively.The aluminum concentration in SS-BG was 12,500 ppm while aluminum levels

in the two composite samples were 30,000 and 39,100 ppm. Barium levelsranged from 173 to 297 ppm, as compared to the background level of64 ppm. Magnesium was found at up to 15,400 ppm, whereas the backgroundsample contained only 2,100 ppm. Nickel levels in the post-excavationsamples were consistently between 41 and 42 ppm while SS-BG contained fck

4-10

AR300553

f^- -'*- ' : ' - * J »'

9 ppm. Potassium and zinc were found in SS-BG at 645 and 41 ppm, and inthe post-excavation composite samples at up to 6,230 and 111 ppm,respectively.

t.. L

The concentrations of some metals in the post-excavation samples exceedbackground concentrations. However, levels detected in the post-excavation samples are much lower than the concentrations of metalsobserved elsewhere, e.g., in the Stressed Vegetation Area.

Volatile organic compounds detected in the Area 2 post-excavationsamples include ketones (acetone, MEK, and MIBK), an aromatichydrocarbon (xylenes), and chlorinated aliphatic hydrocarbons (1,1,2-TCAand TCE).

I

Acetone was detected in seven of the eight grab samples and both

composites, with a maximum concentration of 940 ppb, in the deepersample from Station 1A. MEK was detected in six grab samples and bothcomposites, with a maximum concentration of 500 ppb, also in the deeper.sample from Station 1A. MIBK was detected twice: at 12 ppb in thecomposite of the shallow samples from Stations 1A and IB, and 62 ppb inthe deeper sample from station 1A.

-' • • \

Xylenes were found in two samples at 90 ppb in the deeper sample from

Station 1A and at 31 ppb in the composite of the shallow samples fromStations 2A and 2B.

The only detection of 1,1,2-TCA was at 7.4 ppb in the composite of theshallow samples from Stations 1A and IB. The only detection of TCE wasat 86 ppb in the deeper sample from station 1A.

'In general, levels of volatiles in the post-excavation samples from DrumBurial Area 2 are low relative to levels detected in Drum Burial Area 1.Where they are present, they appear to be localized in the vicinity ofStation 1A. No semivolatile organic compounds, pesticides, or PCBs weredetected in the post-excavation samples from Drum Burial Area 2.

4"n AR30055U

4.1.2 Surface Water and Sediments

Table 4-12 summarizes the results of both inorganic and organic analysesof the surface water samples taken at the Hunterstown Road Site. Tables4-13 and 4-14 summarize the results of inorganic and organic analyses of

the sediment samples, respectively.

Most of the inorganics detected in surface water samples are not presentin significant quantities. However, two metals, lead and zinc, arepresent in concentrations potentially exceeding Clean Water Act AmbientWater Quality Criteria (AWQC) for protection of aquatic life. Lead wasfound in one surface water, Sample SW-1 (downstream of the Lagoon,Borrow, and Stressed Vegetation Areas), at a concentration of 10 ppb.

Zinc was detected in two surface water samples at 80 ppb in SW-2

(downstream of Drum Burial Area 2) and 40 ppb in SW-1.

For zinc, the chronic AWQC is 47 ppfa, regardless of the degree ofhardness. However, the acute AWQC for zinc and both the chronic andacute AWQCs for lead depend on the degree of hardness of the water. Thedegrees of hardness in the East, Middle, and West streams, calculated asthe sum of the calcium and magnesium concentrations and expressed ascalcium carbonate (CaCOo), is 102, 75, and 56 ppm as CaCOo,

respectively, for an average of 78 ppm as CaCOj. Using this average,the acute AWQC for zinc would be 260 ppb. Similarly, the chronic AWQCfor lead would be 2.1 ppb and the acute AWQC would be 125 ppb.

Based on these criteria, the concentrations of lead at SW-1 and zinc atSW-2 slightly exceed the chronic AWQCs for these metals. This mayindicate a slight effect of the Stressed Vegetation Area or Borrow Areaupon the East Stream and of the cornfield sludge or Drum Burial Area 2upon the Middle Stream. In light of the fact that lead and zinc levelsin the post-excavation samples for Drum Burial Area 1 did notsignificantly exceed background, the source of these metals in the pondis not determined.

4-1,2

AR300555

,'Ped)

No organic compounds were detected in Sample SW-2. Chlorinatedaliphatic hydrocarbons were detected in SW-1, SW-3, and its duplicate

SW-3D. Methylene chloride and 1,1-DCA were both found only in SW-3 and

SW-3D, at up to 8 and 11 ppb, respectively. TCA was detected in SW-1 at8 ppb, and at SW-3 at up to 38 ppb, far below its AWQC of 18 ppm.

1,2-DCE was also found at both SW-1 and SW-3, at 18 and 8 ppb,respectively, well below its AWQC of 11 ppm. Finally, TCE was detectedin SW-1 at 24 ppb, again well below the chronic AWQC of 21 ppm.

To summarize, the following parameters have been detected in surfacewaters at levels potentially exceeding AWQCs:

COMPOUND CHRONIC AWQC STATION(S)(ppb)

Zinc 47 SW-2Lead 2.1 SW-1

As discussed in Section 2.4, five sediment samples (and one duplicate)were collected in order to evaluate whether streams act as migrationpathways or have received constituents from the site. For comparison,

the results of the analyses of these samples are compared to those forthe soil background sample, SS-BG.

Eight inorganics were found in sediment samples at concentrationssignificantly elevated with respect to background: beryllium, mercury,sodium, chromium, copper, lead, zinc, and cyanide. Beryllium, mercury,

and sodium were not detected in SS-BG, but were found at up to .1.3,0.07, and 140 ppm, respectively, in the sediment samples on site.

Chromium concentrations ranged from 28 to 110 ppm (the maximum was atSD-1), as compared to the background level of 22 ppm. The copper

• iconcentration in SS-BG was 8 ppm, while concentrations on site rangedfrom 12 to 160 ppm, again with the maximum at SD-1. The maximum

concentration of lead was also at SD-1, with 704 ppm. Samples SD-5 andSD-2 also contained elevated levels of lead, at 194 and 96.4 ppm,

4-13

AR300556

respectively, compared to the background of 28.0. Similarly, zinclevels were elevated at SD-1, SD-5, and SD-2, with 219, 261, and

138 ppm, compared to 41 ppm in SS-BG. Finally, although cyanide wasnot detected in the background, it was found in SD-1 and SD-2 at 0.10and 0.22 ppm, respectively.

In general, locations of elevated levels of inorganics appear

to be concentrated at Stations SD-1, SD-2, and SD-5, on the East andMiddle Streams. Of chromium, copper, lead, mercury, and zinc, all butzinc were found in higher concentrations in SD-1 than in SD-5.

i . ' i tSediments in the West Stream and the nearby pond do not appear to have

received significant fluxes of inorganics.

Organic compounds detected in sediment samples include one ketone(acetone), three chlorinated aliphatic hydrocarbons (methylene chloride,1,2-DCE, and TCE), and two semivolatiles (butyl benzyl phthalate anddi-n-octyl phthalate). Of these, acetone and. methylene chloride werefound in SD-1 through SD-5 at concentrations up to 46 and 18 ppb,respectively. They were detected in the background sample at similar

concentrations and are considered common laboratory contaminants, theywill not be considered further.

1,2-DCE and TCE were found only in the East Stream. The highestconcentrations were at SD-5, adjacent to the Stressed Vegetation Area,where 50 ppb 1,2-DCE and 81 ppb TCE were found. Sediment sample SD-1

contained lower amounts: 10 ppb of 1,2-DCE and 28 ppb of TCE. Asdiscussed above, these compounds were also found in the surface watersample SW-1, taken at the same location.

The semivolatiles were both found only in Sample SD-3 and its duplicateSD-3D, where 3.30 and 0.84 ppm of butyl benzyl phthalate and 2.02 and0.52 ppm of di-n-octyl phthalate were detected.

4-14it

AR300557

In general, in light of the fact that organic compounds in surface

waters do not exceed their AWQCs and assuming that the constituents inthe sediments are in equilibrium with those in the surface waters, the

degree of contamination of sediments by organics appears to beinsignificant.

s i

4.1.3 Groundwater

Tables 4-15 and 4-16 summarize the results of inorganic analysesof groundwater samples taken from shallow and deep monitoring wells,*respectively. Tables 4-17 and 4-18 summarize the results of the organicanalyses for the same sets of wells. Wells HMW-4A and HMW-4B areconsidered representative of upgradient conditions.

Six metals were detected in concentrations significantly exceeding those'

in the upgradient wells: aluminum, calcium, magnesium, chromium,

copper, and mercury. The aluminum concentrations in HMW-4A and HMW-4Bwere 0.4 and 0.1 ppm, respectively. In all other wells but one, the

maximum aluminum concentration was 0.8 ppm. However, in HMW-9A,aluminum was found at 6.8 ppm. Calcium and magnesium concentrations aregenerally higher in wells HMW-8B (and the duplicate sample from thatwell), HMW-9B, and HMW-10B, indicating a slight increase in hardness inthat area. Chromium was detected in only one well, HMW-1A, at 0.14 ppm.Copper was detected only twice, at 0.02 ppm in both HMW-9A and HMW-10A.

Similarly, the only detections of mercury were in HMW-2B and HMW-3A,both at 0.0002 ppm.

Organic compounds detected in groundwater samples include chlorinatedaliphatic hydrocarbons (methylene chloride, chloroethane, 1,2-DCA, TCA,vinyl chloride, 1,1-DCE, 1,2-DCE, TCE, and PCE), aromatic hydrocarbons

(toluene, 2,4-dinitrotoluene, and 2,6-dinitrotoluene), and thesemivolatile bis-(2-ethylhexyl) phthalate.

4-15

AR300558

Figures 4-1 and 4-2 present the total concentrations of chlorinatedaliphatic hydrocarbons in the shallow and deep wells, respectively. Themaximum concentration of chlorinated aliphatics was found in well

HMW-3A, where a total of 119,970 ppb was detected, primarily due to TCE(96,000 ppb) and 1,2-DCE (18,000 ppb). This sample also contained theonly detections of aromatics, with 60 ppb toluene and 80 ppb of each of

t ~the dinitrotoluenes.

Other shallow wells in the eastern portion of the site which contained

volatiles include HMW-5A, HMW-2A, and HMW-7A. The sample frommonitoring well HMW-5A contained 200 ppb total chlorinated aliphatics.

The sample from monitoring well HMW-2A contained 10 ppb TCA. The sample

from monitoring well HMW-7A contained 137 ppb total chlorinatedaliphatics.

In the western portion of the site, wells HMW-8A and HMW-10A did notcontain organic compounds. However, HMW-9A contained 258 ppb of

chlorinated aliphatics, primarily TCA and TCE. This well also contained70 ppb of bis-(2-ethylhexyl) phthalate. Well HMW-9A is immediatelydowngradient of Drum Burial Area 1.

Deep monitoring wells containing volatiles include HMW-2B, HMW-7B,

HMW-5B, HMW-6B, HMW-3B, and HMW-9B. The sample from monitoring Well

HMW-2B contained 15,730 ppb of chlorinated aliphatics, primarily TCE

(14,000 ppb) and TCA (1,200 ppb). Due to the large dip in the

stratigraphy on site, this well is screened in approximately the same

unit as HMW-3A. Monitoring Well HMW-7B, which contained 1,007 ppb of

total chlorinated aliphatics (primarily TCA and TCE), is also screened

in the same unit as HMW-3A. The distribution of constituents in

Wells HMW-3A, HMW-2B, and HMW-7B, approximately aligned in the directionof flow, demonstrates an approximately 100-fold attenuation in the

concentration of volatiles in the direction of flow from the source to

near the site boundary.

4-16

Aft300559

This relationship is shown in Figure 4-3, which depicts the vertical

distribution of chlorinated aliphatic hydrocarbons. On this figure,monitoring well HMW-6B, which cpntained 252 ppb chlorinated aliphatics,appears to be between BMW-2B and HMW-7B. However, this well wasprojected 270 feet onto the cross-section, and is not actually on theline of flow. The occurrence of chlorinated aliphatics in this well isconsidered to be due to diffusion and dispersion, i.e., spreading, in adirection transverse to the direction of flow. This is also considered

•• ito be the mechanism whereby chlorinated aliphatics reached the area

monitored by HMW-5B, wherein 337 ppb total chlorinated aliphatics and 30ppb bis-(2-ethylhexyl) phthalate were detected

» , i

The same rationale could explain the occurrence of constituents in wellHMW-3B. However, HMW-6B is interpreted as being in approximately thesame unit as HMW-3A, HMW-2B, and HMW-7B, so that dispersion would occur

along the bedding planes of the formation. This is considered to bepossible because the mean free path of transverse velocity variations inthe groundwater flow regime is expected to be largest along strike,particularly as groundwater is forced to travel around blocks of rockthrough the fractures. The mean free path of velocity variations in adirection perpendicular to the bedding planes is not expected to benearly as large due to the interference of the diabase sills.Therefore, dispersion may not be the primary mechanism for the migration

of constituents to the area monitored by HMW-3B.

In Section 3.6.2.2, an anomaly in the distribution of potentiometriclevels in the vicinity of HMW-4B was noted, and the possibility of anear-vertical diabase dike between HMW-4B and HMW-3B was hypothesized.If such a dike existed, constituting a flow barrier, its presence could

also explain the occurrence of chlorinated aliphatics in the sample fromHMW-3B.

4-17

AR300560

In the vicinity of a barrier to groundwater flow, the component of thegroundwater velocity vector perpendicular to the surface of the barriermust vanish. However, the component parallel to the barrier can benon-zero. Throughout most of the site, vertically downward gradientsinteract with anisotropic permeabilities to produce flow which is

approximately aligned with the bedding planes. However, along thewestern side of the hypothetical diabase dike, there can be no hori-zontal component of flow, and hence, in spite of the anisotropy of theformation, flow must be directed straight down. Because such flow mustcross the bedding planes, its magnitude may be small. However, it isconsidered possible that this is the mechanism by which constituentsfrsm the source area have reached the area of the formation monitored byHMW-3B.

It must be noted that this model is speculative. However, the fact that

the hypothetical diabase dike explains anomalies in both the piezometrichead and contaminant distributions is believed significant.

On the western side of the site, HMW-9B is the only well with volatiles,containing a total of 1,383 ppb of chlorinated aliphatics, including TCE(at 930 ppb) and TCA (at 370 ppb). This well is located in thedirection of flow from Drum Burial Area 1.

Several compounds detected in groundwater samples are present inconcentrations which exceed Safe Drinking Water Act primary MaximumContaminant Levels (MCLs). These are summarized below:

COMPOUND MCL WELL(s)(ppb)

Chromium 50 HMW-1ATCA 200 HMW-3A, HMW-2B, HMW-7B, HMW-9BVinyl Chloride 2 HMW-3A

AR30056I

^ - : - ORIGINAL: ,, - i -

COMPOUND MCL WELL(s)

1,1-DCE 7 HMW-3A, HMW-5A, HMW-7A, HMW-9A,HMW-2B, HMW-5B, HMW-6B, HMW-7B,HMW-9B

1,2-DCE 7 HMW-3A, HMW-5A, HMW-9A, HMW-2B,HMW-3B, HMW-5B, HMW-6B, HMW-7B

'TCE 5 HMW-3A, HMW-5A, HMW-7A, HMW-9A,HMW-2B, HMW-3B, HMW-5B, HMW-6B,HMW-7B, HMW-9B

4.2 IDENTIFICATION OF COMPOUNDS OF INTEREST

In this section, compounds of interest for the Hunterstown Road Site areselected, from the list of all compounds detected in environmental

samples on site based on satisfaction of all the following criteria:

• Compounds which are considered to be related tosite waste disposal activities,

• Compounds which, at the approximate concentra-tions encountered on site, are expected to posea potential threat to human health or theenvironment, should an exposure pathway becomecomplete, and

• Compounds which occur frequently and are notlimited in extent.

Based on these criteria, the following compounds of interest have beenselected for the areas or media on site:

• Borrow AreaCopper, lead, and zinc.

• Lagoon AreaCopper, chromium, and lead.

• CornfieldsCopper, chromium, lead, and zinc.

• Stressed Vegetation AreaCopper, chromium, lead, zinc, 1,1-DCA, TCA, .1,2-DCE, TCE, and PCE.

4-19

AR300562

• Drum Burial Area 1Toluene, ethylbenzene, xylenes, 1,2-DCA,1,1,2-TCA, 1,2-DCE, TCE, and PCE.

• Drum Burial Area 2None. • "' =

• Surface Water _Lead, zinc, 1,1-DCA, TCA, 1,2-DCE, and TCE.

1. :i

• SedimentChromium, copper, lead, zinc, 1,2-DCE, and TCE.

• GroundwaterChromium, chloroethane, 1,1-DCA, TCA, vinylchloride, 1,1-DCE, 1,2-DCE, TCE, and PCE.

In general, the compounds of interest selected here agree with-thosedetected in previous investigations. For example, the compoundspreviously detected in residential wells are the same as those detectedon site and are included as compounds of interest in groundwater.

4-20

AR300S63

5.0 FATE AND TRANSPORT

The data gathered during Phase I of the RI/FS provided information on

the geotechnical, geological, and hydrogeological characteristics of theiHunterstown Road Site, identified the types of compounds present and the

partial extent of their distribution, and identified compounds ofinterest (COI). Although a brief outline of fate arid transport(exposure pathway) mechanisms is discussed here, a more detailed fateand exposure pathway analysis will be conducted during Phase IIactivities. .

5.1 FATEThe compounds of interest selected in Section 4.2 can be broken down

into three groups: metals, aromatic hydrocarbons, and chlorinatedaliphatic hydrocarbons. Potential transport mechanisms includeadvection, diffusion, dispersion, dilution, degradation, volatilization,

adsorption, and particulate transport, and are described as follows:

• Advection consists of the transport of adissolved species by virtue of the flow of thesolvent (in this case, water).

• Diffusion is a mechanism whereby solutedistributions within water spread due to randommolecular movements.

• Dispersion is an analogous spreading mechanismproduced by random velocity variations in themovement of water. In surface water thesevariations are produced by turbulence. Ingroundwater such variations are produced by themovement of groundwater around localized regionsof lower hydraulic conductivity. At theHunterstown Road Site, dispersion in groundwateris expected to be a significant transportmechanism (second only to advection) because themean free path of groundwater velocityvariations will be quite large as water isforced to move in fractures around large blocksof essentially impermeable rock.

5-1

AR30056tf

• Dilution is the process whereby the mixing oftwo streams of water containing unequalconcentrations of dissolved species produces asingle stream with an average concentration.For example, a small discharge of groundwatercontaining high concentrations of a contaminantinto an uncontaminated stream with a relativelyhigh flow would produce in the stream a lowconcentration of that contaminant.

• Degradation is the process whereby compoundsundergo transformation or other biologicalchemical reactions which destroy them.

• Volatilization consists of the evaporation ofcertain of the lighter compounds from water andsoil into the gaseous phase, which can be eitherthe atmosphere or soil gas.

• Adsorption is the process whereby dissolvedcompounds in fluids in contact with solid mediabecome attached to the surface of the solid.Adsorption is often reversible. In groundwater,equilibrium reversible adsorption is responsiblefor the phenomenon known as retardation.

• Particulate transport consists of the movementof adsorbed compounds by virtue of the movementof the particles to which they are attached.Examples include the movement of dust by windand sediment transport by surface water. Inaddition, recent scientific research has paidattention to the possibility of transport ofcolloidal particles by groundwater.

The applicability of these transport mechanisms to each of the groups of

compounds of interest is discussed in the following sections.

5.1.1 Metals ; ;The metallic compounds of interest include chromium, copper, lead, andzinc. In the environment, these metals generally exist dissolved ingroundwater or surface water (dissolved phase), or adsorbed to solidmatrix particles (particulate phase). On site, elevated levels of thesemetals have been found to occur in soils at the Borrow Area, LagoonArea, Cornfields, Stressed Vegetation Area, and Drum Burial Area 2, and

it

5-2

AR3.0Q565

in the sediment and surface water of the East Stream and Middle

Stream. Transport mechanisms applicable to metals in these mediainclude advection, diffusion, dispersion, dilution, adsorption, andparticulate transport.

The general pattern of potential transport of these metals appears to bei

from the source areas to surface waters, most likely via particulate

transport in overland flow. Once in the sediment fraction of thestreams, potentially lower pH levels can cause the metals to desorb or

dissolve into the water column, where they will be advected

downstream. Ultimately, diffusion, dispersion, and dilution will reducethe levels of these metals to non-detectable concentrations with respectto natural or background levels.

5.• 1.2 Aromatic Hydrocarbons

The aromatic hydrocarbons of interest include toluene, ethylbenzene, and

xylenes. In the environment, these compounds generally exist indissolved, absorbed, or in the gaseous (volatilized) phase. On site,

elevated levels of these compounds were detected adsorbed to soils inthe northern and southern ends of the excavation at Drum Burial Area 1.Transport mechanisms which would affect the distribution of aromatics

include advection, diffusion, dispersion, dilution, adsorption, andvolatilization.

I

To the extent that infiltration through this area into groundwater wouldoccur, advection would be the primary transport mechanism. However,

aromatics were not detected in the samples taken from HMW-9A and HMW-9B,

indicating that this is not occurring.

5.1.3 Chlorinated Aliphatic HydrocarbonsChlorinated aliphatic hydrocarbons of interest include chloroethane,1,1-DCA, 1,2-DCA, TCA, 1,1,2-TCA, vinyl chloride, 1,1-DCE, 1,2-DCE, TCE,

and PCE. Chlorinated aliphatics in the environment are generally founddissolved, adsorbed to solids, or volatilized into air. On site, these

5-3

AR30G566

compounds were found elevated with respect to background in soils fromthe Stressed Vegetation Area and Drum Burial Areas 1 and 2, and ingroundwater near these areas. Much lower levels were detected insurface water and sediment samples.

The general pattern of transport of chlorinated aliphatics appears to betheir desorption from solids in the source areas and their subsequent

infiltration into groundwater. Once in groundwater, they are advectedand dispersed along the patterns described in Section 4.1.3. Someretardation in groundwater may occur. However, the rocks on site arenot expected to contain significant quantities of organic matter,rendering the quantitative estimation of retardation factors difficult.

i ! •Some volatilization may occur from the potential source areas. In theabsence of any other processes, this would be detected as a gradual

decline in concentrations in the source areas. However, in Phase I,this process could not be distinguished from other attenuation factors.Volatilization is expected to reduce the already low concentrations ofthese compounds in the streams. This would be observed as a gradualdecline in average concentrations in the downstream direction. Once inthe atmosphere, these compounds are quickly degraded via photolysis and

photo-oxidation. :

-, - •'• '' -|

Degradation of the chlorinated aliphatic hydrocarbons is expected to besignificant on site. Under anaerobic conditions, microbes can slowlydechlorinate these compounds (Cline and Viste, 1984), producingdichloroethenes and vinyl chloride from TCE and dichloroethanes andchloroethane from TCA. In fact, this mechanism is probably the way thatsome of the lesser-chlorinated compounds came to be at the site,although they could also have been impurities in the solvent products.

5.2 EXPOSURE PATHWAYS

As described in the Superfund Public Health Evaluation Manual, anexposure pathway is considered complete if all of the followingnecessary elements are present:

5-4

flR300567

• A source and mechanism of chemical release tothe environment,

• An environmental transport medium for thereleased chemical,

*

• A point of potential human contact with thecontaminated medium (referred to as the"exposure point"), and

• Contact by humans at the exposure point..

Exposure estimates can be calculated only for complete exposure

pathways. Elements of the above components as they pertain to theHunterstown Road Site are discussed below.

Analysis of the surface water and sediment samples revealed the presenceof some chemicals. However, there are no known drinking water suppliesin the area which rely upon surface water. Consequently, the surface

water and sediments do not appear to constitute a significant exposurepathway elements.

Analysis of groundwater samples indicates that compounds of interest arepresent in elevated concentrations with respect to background levels andregulatory criteria. Water wells in the area are used for private water

supplies. Groundwater transport remains an exposure pathway.

! •

Due to the comparatively low concentrations of compounds on site(as compared to pure product), volatilization of compounds to theatmosphere is not considered to be a significant exposure pathwaybecause dilution, dispersion, and degradation of these compounds

in the air is expected to reduce exposure point concentrations tonegligible amounts. Routine air monitoring performed during sampling

did not detect significant levels of VOCs in the air.

Other potential exposure scenarios include inhalation of fugitive dust

and/or direct contact with contaminated soils on site.

5-5

AR300568

The transport mechanisms and exposure scenarios briefly identifiedhere will be evaluated in detail during Phase II. As part of the

Phase II study, environmental fate and transport pathways will beanalyzed, exposure assessment and risk characterization will beconducted, and applicable or relevant and appropriate requirements

(ARARs) for the compounds of interest will be compiled.

5-6'! , f

AR300569

6.0 DATA GAPS

During the Phase I RI/FS significant amounts of data have been compiledon the geological and hydrogeological characteristics of the site. Inaddition, an indication of the extent of contamination has beendeveloped. Additional data that would facilitiate evaluation of risk

and remedial responses include:

Anomalies in the distribution of water levelsand contaminants in groundwater leads tospeculation regarding the existence of a dikenear the eastern edge of the site.Understanding the controls on groundwater flowis essential for evaluating the feasibility ofcommon remedial technologies. A magnetometersurvey of the area would be an inexpensive wayto screen for such a feature.

In the vicinity of the Middle Stream, a morepermeable zone to facilitate groundwatermovement (sink) was potentially identified as ahighly conductive fracture or joint.Exploratory drilling could identify the natureof this feature.

The horizontal extent of chlorinated aliphaticsin groundwater has not been fully defined in thefollowing areas: shallow and deep groundwaterwest of the site beyond HMW-9A and HMW-9B;shallow groundwater southwest of the site beyondHMW-7A; and deep groundwater west of HMW-6B andHMW-7B. The (downward) vertical extent ofcontamination has not been fully defined belowHMW-9B, HMW-2B, and HMW-7B. Additionalexploratory drilling could be performed toaddress these data gaps. A residential wellsurvey in the area, including sampling, at thesame time as an additional round of sampling onsite for groundwater compounds of interest isrecommended prior to additional drilling. It isrecommended that any future groundwater samplesbe analyzed only for VOCs of interest.

6-1

AR30G570

• The highest concentrations of metals andorganics in the Stressed Vegetation Area wereall found in the samples form the southern endof the area. Additional surficial soil samplessouth of the Stressed Vegetation Area andsubsurface soil samples (taken by hand auger)from within the area analyzed for metals ofinterest and VOCs would provide necessaryinformation regarding the volume of contaminatedsoils for cost estimation during the FS.

• Sampling of the surface water and sediment inthe pond is recommended.

Detailed descriptions of specific tasks and procedures for any such

additional investigations will be provided in the Phase II Work•

Plan, Site Operations Plan, and Quality Assurance Project Plan.

6-2

AR30057I

7.0 SUMMARY AND CONCLUSIONS

This Phase I report has provided an overview of the site history andprevious site investigations, detailed the procedures used in conductingthe Phase I study, presented findings on the physical and chemicalcharacteristics of the site, and provided an overview of fate and trans-

port processes. The Phase I investigation consisted of the following:

• Literature searches to document previousgeological, geotechnical, hydrological,hydrogeological, and climatological studiesapplicable to the Hunterstown Road Site.

• Identification of current designated uses ofgroundwater and surface water.

• Characterization of site geological conditionsbased on field mapping, core holes, and boreholegeophysical logging.

• Characterization of bedrock fractures by meansof a fracture trace analysis and mapping oflocal outcrops.

• Assessment of potential source areas.

• groundwater quality by means of installingmonitoring wells, measuring water levels, andsampling and analyzing groundwater.

• Assessment of whether nearby streams arecurrently serving as migration pathways from thesite based on sampling and analysis of surfacewater and sediment.

.• Evaluation of Phase I data and overviewpresentation of fate and transport processes.

Based on the results of those activities, the following findings havebeen established:

The bedrock underlying the site consists ofhornfels with numerous igneous intrusives. Thestrata strike at N41°E with a dip of 26°NW.

V'J

The fracture traces and lineaments assessed inthis study appear to mainly reflect bedding,with a trend nearly perpendicular to bedding ofunknown origin, but which could be strike-slipfaulting. Although the joint azimuths appear tobe reflected in the pattern of fracture traces,most of the fracture traces or lineaments do notappear to be joint controlled.

Groundwater movement is characterized byfracture flow. Groundwater appears to flowhorizontally in the shallow, weathered bedrockzones. In the vertical plane, downwardhydraulic gradients combine with anisotropichydraulic conductivities to produce groundwatermovement that is primarily along the bedding,perpendicular to the strike.

The Borrow Area, Lagoon Area, Cornfields, andStressed Vegetation Area are characterized ashaving elevated levels of heavy metals. TheStressed Vegetation Area also contains elevatedlevels of chlorinated aliphatic hydrocarbons.

Drum Burial Area 1 is characterized ascontaining elevated levels of aromatichydrocarbons and chlorinated aliphatichydrocarbons. Drum Burial Area 2 is relativelyuncontaminated.

Surface water and sediment are characterized ashaving elevated levels of heavy metals andchlorinated aliphatic hydrocarbons. Locationsof elevated levels are primarily found in theEast and Middle Streams.

Groundwater was found to contain elevatedconcentrations of chromium and chlorinatedaliphatic hyrocarbons. Areas of elevatedorganics include shallow and deep zones nearDrum Burial Area 1, a shallow zone near DrumBurial Area 2, and shallow and deep zones westof the Lagoon Area. The distribution oforganics in groundwater is bounded to the east ,and north, but not to the south and west.

7-2

AR300573

Additional data needs for the evaluation of risks and remedial altern-atives have been identified. A work plan for a Phase II investigationwill be prepared to address these needs.

Respectfully submitted,

David M. BrownProject Engineer

Kenneth J. BirdProject Manager

DMB/KJB/dlm

7-3

AR300571*

REFERENCES

Bromery, R.W., N.C. Natof, et al., 1961, "Aeromagnetic Map of theGettysburg Quadrangle and Parts of the Taneytown Quadrangle, AdamsCounty, Pennsylvania," USGS Geophysical Investigations GP-284.

Cline, P.V. and D.R. Viste, 1984, "Migration and Degradation Patterns ofVolatile Organic Compounds," in Management of Uncontrolled HazardousWaste Sites, 5th National Conference.

Froelich, A.J. and D. Gottfried, 1985, "Early Jurassic Diabase Sheets ofthe Eastern United States - A Preliminary Overview," U.S. GeologicalSurvey Circular 946.

Froelich, A.J. and P.E. Olsen, 1985, "Newark Supergroup, a Revision ofthe Newark Group in Eastern North America," U.S. Geological SurveyCircular 946.

Hall, G.M., 1934, "Ground Water in Southeastern Pennsylvania,"Pennsylvania Geological Survey, Fourth Series, Water Resource Report 2,255 p.

Kowalik, W.S., 1975, "The Use of LANDSAT-1 Imagery in the Analysis ofLineaments in Pennsylvania," MS Thesis, Pennsylvania State University.

Lehigh University, 1982, "Ground Water Basin 13D," Aquifer DesignationStudy: Ground Water Basins," Volume 2B, Ground Water Basins within theSusquehanna and Potomac Basins.

Metcalf and Eddy, Inc., 1987, May 30, Work Plan - Hunterstown Road,Remedial'Investigation/Feasibility Study.

REMCOR, 1987, "Assessment of Suspected Waste Disposal Areas -Hunterstown Road Site, Gettysburg, Pennsylvania."

Rizzo Associates, 1988, October, Work Plan, Remedial Investigation/Feasibility Study, Hunterstown Road Site.

Root, S., 1988, "Structure and Hydrocarbon Potential of the GettysburgBasin, Pennsylvania and Maryland," in Manspeizer, W. (ed.), "Triassic-Jurassic Rifting, Continental Breakup and the Origin of the AtlanticOcean and Passive Margins, Part A," Elsevier.

Stose, G.W., 1932, "Geology and Mineral Resources of Adams County,"Pennsylvania Geological Survey Fourth Series, Bulletin Cl.

AR300575

REFERENCES(Continued)

Taylor, L.E. and D.W. Royer, 1981, "Summary Groundwater Resources ofAdams County, Pennsylvania," DER Office of Resources Management, Bureauof Topographic and Geologic Survey, Water Resources Report 52.

!

U.S. Environmental Protection Agency, 1988, "Draft Guidance forConducting Remedial Investigations and Feasibility Studies UnderCERCLA," OSWER Directive 9355.3-01.

iU.S. Soil Conservation Service, 1965, Land Resource Regions and MajorLand Resource Areas of the United States, U.S. Department ofAgriculture, Hyattsville, Maryland, p. 91.

U.S. Soil Conservation Service, May, 1967, Soil Survey, Adams County,Pennsylvania, U.S. Department of Agriculture.

Wolf, David, 1981, Pennsylvania Wildlife Illustrated, William H. Wiaseand Company Incorporated, Union City, New Jersey.

Wood, 1980, Groundwater Resources of the Gettysburg and Hammer CreekFormations, South Eastern, Pennsylvania, PADER Water Resource Report 49.

Zall, L. and 0. Russell, 1979, "Ground Water Exploration Programs inAfrica," in Deutsch, M., D.R. Wiesnet, and A. Rango (eds,), SatelliteHydrology, Fifth Annual William T. Pecora Memorial Symposium on RemoteSensing, American Water Resources Association, Minneapolis, Minnesota,730 pp.

AR300576

TABLES

it

it

itAR300577

TABLE 1-1

SAMPLING CHRONOLOGY

Date

12/14/83

12/19-21/83

1/28/84

2/23/84

3/13-14/84

3/27-28/84

3/29/84

4/24/84

5/10/84

5/21/84

8/1/84

8/14/84

10/10/84

12/21/84

1/28/85

2/6/85

4/17/85

4/24/85

6/20/85

8/5/85

10/21/85

11/19/85

11/25/85

12/9/85

5/14/86

Sampler Waste

PaDER

Pa'DER

NUS for EPA 3

PaDER

PaDER

PaDER

OH Materials 30iPaDER

NUS for EPA* '

PaDER

PaDER"

PaDER

PaDER

Culligan

NUS for EPA

PaDER

Weston for EPA

PaDER

NUS for EPA

PaDER '

Weston for EPA

PaDER

PaDER

PaDER

Weston for EPA _2

TOTALS 35

Soil Surface Water/ Ground

2

4

1

2

6

12

5

3 12

5

5

1

1

6

8

3

1 4

2

11

3

3 5

2

1

1

_3 _7 _

10 33 76

*Five samples from this group are not included because locationsare indeterminate: junk pile (soil and water), field auger,ieachate .oil, and fiUed hoi.. flR300578

Source: Metcalf & Eddy (1987)

wSBJ"!Sj

1

Ji« CdH

W W

| f»f

OSWs225OT

C0.H

C JJH (0u

0) JJC" Cc cu(TJ OOS Co

CJ

Compound

cncu-. 00--Ijj• OO 0)Z JJ

0)Q

cnVl-l CUO r-l

CU• EO TJz cn

jjcn0)

coJJffjuo

01JJrtjQ

cj a a aO Qj f^ Oj03•er O O O4- 0 0 OO ooor>» » * »in r-t <» o

CO cn i—l '• "

f—

QJ ,2S *JJ C £

.C ° r-l

nj ~ * jj

k* T1 ^

4 e

CN (H H H

CO r-l

cn- O

os'cCJ njO5 ^uO

cO0flj

J

CO

CO' CN\r-l

S £ s sS° a a a S'-Su* ^^ ^ Ou M^

I -T G\ S ^5co i» i • zr r• iH J j j *^ ?j

cs • • ^^ Q Q Q

OJ0) JJC ftj

, ,«, , ,11^ S aa i(U cnc -^

J2

r^CNflOOOiHi— 1CM

p»p»vorN-t*»ooocNCNi— icNCNcnnm

jj

.g *0 0 2 2 " ™Qjj2 5 "^ icn (X 5, "3 u

f™HEu

COoa>J

COxcnCNxcn

***%%*%**U4 Od / ^ ** j ^ ^

a °* o o a° ao0 0 0 0 C5 0 § 0 0rH n * n * i— t rHr-H , _ CN O ^T -^

' 1 a S ' ' !Hco r*" irt i i ^ A cr» .fnrHr-(y3oCN ' ^

r-l rH ... r-l1— 1

0)0) t3

E c 'HOJ o < CJ N O 0C £ CJ CJ C r-H C

N 2 1 1 J3 O CJ U 3C n r-4 rH E-l E-" rH0) _L •> » 1— 1 rH Osi 2 •H -^O £ £JJ JJ

0) 01E

^pntNfncncnvocncNrH iH rH rH

OOOOOOOOOm ro m rn cn m cn cn cn

cn0cfQCPu0(U•HJ3flj01u3

CO0CP(Q

CO

O\CNv^cn

J3aaor"'

,

Q

1

0

0cn

cn01T3•HO• HJJcn0)Oi

coocn03J

COXa\CNXcn

&aao1—1

«

Q

1

1

0

0cn

cnCOCJCU

coo<J1<T3J

COXCNXcn

"

1

r-.03ON•— *->>•o-aCdiCJ

*•0)uu3OC/]

1

AR300579

7 J"* a

3 S<• oH U^

CO• H

C JJ•H rg

u0) jjcn cC 01TJ CJo: c•0CJ

'Oc3oaoCJ

cnc»w OO -H

JJ. tjO CUZ JJ

0)a

cnU-l CU

'a• Eo mz cn

jjcnCU£-•

Co•HJJCOuo

CUJJ8Q

e e a aE p n.ricv^'QjQ.pi, 5 ^ / * ^ ^ \ ^ C3Qj y* 5 a o ® S o E

SoOO^'S'O ^ ^ «* • us eft °v • r- a^ a| *T UJ O3 «• » CN j»j p^

^* rsi rsi tn i I «• J-i ^• ^ . J u J L l ^ . I

U1 ' .k. CO "03 rv! * * COin us

^ 0 3 E | ^^ CUO •• *F"I .., 3 ^ O O5 C r •'•4 f™T W MM "IS ZL * * H

"jj Cn S 'U u Q*,—! *-". ., (g 3

ra _Q o

TJ- rHcn mom rHOrHCN CN CN rH Cn

oooooooooooocn co cn m cn cn cn cn cn cn cn cn

cno•HC<TJfj>UOCL

Co0TJJ

*COXCNX

d*o

cnocn01AcnmCUjj• Hcn0SCO

CN

CN

COOjjcnCU.Qcn<!

fO0)K J

20k4

OCO

VOCOXrHX

JJ2H

2OHJJUCUJJJJ3

.

Q

CUjj0z

_r-.COONs S

X~a•oCd

<4-l

*«UJJCOS

atuuoCO

9AR300580

uMJ

JM

£s>4fidI

VI

^

cnjji-H3cn0)PS

jjcn0)

uCUrHaECO

Xe0•H XJJ -Hco uO JJO ca

•aCU

uCU

CU rH

CO O0 U

cn •• 10) • <•»• OC CN o*>i a; — 'Co »

"31 N • •—C 0! CN o*

•• 01 C rH <»— »jO-H >,CNE O rH <f C, •—•Cu u -H CJ JJCu O C £1 CU W

rH ro ' CJON .C » » EHCN O - —• ——— -H ~e*> ~

t3 E O.cn en"T3 1 Cu Cu • ON•H * Cu ON •O » ^r — CNCO' rH CN CN —

*—* «wi* 030 - CJ CU•H — . oi 0) Q CO E C C 1 CUN O, 0) 0) CN 3C CUrH -H • (— 10) CO rH rH O

• JJ C -»rH .C (0 -» -

•— • •»» Cu O ** •"•»E <TJ U ** ov»Q.rH Z O • 00 •CU O r-l O • — -C -£ V 0 9*

en CU — U — — CN— JC. E 1 —

Cu Cu * Cx3 0)rH rH CU CJ C CUO >1 *Q 01 CC £ CN •— 1 NO)0) JJ • E rH C rH£ 0) rH CU • 0) >1cu E — • CurH .a x

cno• HCCOcnuO

cn3Z

rH•rHOcn

1 T3C 01o c0"HON ccjca jjj cn

COxorHXm

c•t >H •** JJ ^0*° *>

E *J3 rH vj3 * C^3 . 01 0 •• "« ••- 1 in j«: • — » g ou O o E Cu^-fO -H — Cu CuJ2 JJ C a T3

rH CJ CO CO* (CJ «• C T rH 0)

*^ J^ ^«H t • rHo*» O o*» N CN OrH U rH — — ..• • «» ^*«O — »rH — - CJ >1 E— E *•" *° -H u Cu

Cu in c 3 CuE Cu c o 0) U3 o • cn u in•H rr u o u cu cnE . -H <- co £ .0 rH Ow - i ^ CU * * "^js — • cn -*~0 E o* CU E E E3 CN c a cu 3* *H • (T3 C CU'H

*-•* rH O CJN E0*0 I-H ~- c in in TJVO >» CO • rH CO• u u g T • OO 0) 0) CN rH>— J3 d fc — ' •" »

Cu *~ *~*E " 0 E E >E3 O Cu 3 C CuC erP CU-H O CU•H m » 'O EE o — -vo co -H in'3 • E • C JJ •rH o Cuin fl c cn< a— > co «

cni-HrOjj0)

0) cU cn vo "O '' oT3 C O • co '•H 0) ON E 'JS (U1-1 N JT, V 3 rH rHO C JJ — -H *~ vin-Hcuc WON ^^»

cnjC-QraO) eg . rH E — —««—o uc xjcooiaES*OO) rHJsfCuQiQi

Ci3 0) —« 3 u »*-o CuCuCJCJ3rH> -^ -HU-IO 0) Cuu-i Cu E -W C • * *Q*I rH Q, CUrH O • -HCN>, .—. C U C O » V O C O «* £ O CN jO J3"»^- —O

rH JJ 'S' —* CU CN O oV •—•O) CO CU • U rH O O

•* E — N O • C -H S—» co c N - c n - H C 3O ^ O l C U r H •** *-* ~~ (4 V "4Z —— C J3 rH E WSQQO) »- E C u C - U T J— Z O •-» 3 Qi O — CO nj

Q C O S O I "H UoV O01—— 1-lCuC S C M - H r H -JJ r*| p, cu 0 * * ^l %

• cooiJJ cn w CN «^o E —»*"* r H C C V O ^ i J3 "—• O •— CU Ea c O C U « 3 O W O Z CXCli£ N ^ £ EQOI aCu -we »rH o •• 3 — cn in

£ 01 CO V —«"H 0) • rHCN Qi-Q*-*—** o*» rH J-i C TT •. ^. rHrHOITjTO

rH i-Hi-HNOlja — >| Cu CTI«— •— •— >i >, c c a u cu c —.4J£(D4iCu E 0 1 O 1 J E S E '-

CU 3JJJQU 3 J 3 O E 3 3 C u ^Trr; .Q (1) >,VO C .rH -H CU 2•H I ^ C u O ' - H — . - ^ T D C SC C Q •*—« E O'-«« fO cu in v_-co i-az*-«rH.a 3 Z E EC-H •>, .HCuQcOVCu rHQCuCucOCUvo >>CJ QCu —^-—Cu <>-CuCu>cn^-' ^

Cd

cn cno•H cnc uco -H cn

to

9Q w fl3 TJj= o cn -u ••JJ C u 0) «o M o s y

3ocn

cn3z

ocnCO0) T3U t-l UCO CU co

rH >,E co^3 CU OVd x: coQ cn ca

m flR30058i

X"»cn -H1 0)•H 3a33eg a< oH 0w

cnrH3cn0)

cncu

u0)rHaECOCO

XcoH XJJ -Hco (iO JJ2 CO£

CUJJU0)

CU rHi i _j*» r

3 CJ

cu o Q o i •* ai j - c n c ^ z T T C NC CU CU CO HI — Q O «. 1 O /O .C O C Cd CU — • O O Z O Q CO rHCUQCNCO i

— J3 JJZO I C J O 0) u • CU O 1 — O <T Z O » C Z »^-i-i«»0) — NQl-i C <I O "^ C CN O O — » Q « « - CO rH CU — - CN QQ<Tj*-rH C 1 CU <T5 U rH C-J CO U CU CN Q Z -^ 1 CO CU -ZZ O Q > i O > 0 > r H O JCH.CZ JZQO'O ZE — EC N C a • • O > - l r H —— ZC'O^»>-1 O l J J I O — • JJ Z rH .-H Q «— u C u « < T J Z ^ - > u o > ' »

... ,.H .HQrHO COlrH-H CU — £ 1- Z 0< Cu rH U — £ Cu £ rH Cdcu •-» >uu I-H 0) O » u 0) E U O >— < u-i CJ JJ OjQjJ UC Q C U r H O O ' - J C rHUrHEn'O OCU I-H C J O £ - " O ' « I C d C u i - i O i » » a iCO Z C >>r-t rH^^O > l O * -H E C — j C C U d V - I C O — >CnCJ O rH — •JC — ' 0)jCjCjCQ'~^**J>-rHrH«»Wl OCO •— » OCI OrH £ » E " l O r H > i E « » -«JJ N J J C J U Z ' O — — -tJJC —— O U O C E C O r H r H » Q C U r H CO JC C CU— » EC U C U C O i r H - H — |QO)O'»QrH oOjJCuCUjC ^jCrHZCu •» O — « C u E C us 'O tu o ^i ro CN rZ s ^n *^ -2 _n *x) PI c ^j H o * '^^ ** ^ o *^ cu CL •O'H^UJT <>^- U Q —— U •« E 010) rH O —— EZ'OrHOCU — •u E O O J J — C J r H •• jj z — O o rH £ •» •» 0) co E Cu — • >iO OEOOi->rHO!^Q OJ— » 0) — Cd rH Euco^O^"- «'-»t3 CuCu cn£<ro^rCur H U i O j C E Q l « - C Q j J CJ>i GiO •Ci-'EEE'HQCu CU-HJJ o CujGaQrHO Z CN — CU Z 1 OlE-iC Qi3QjJOCUCliQ4)-iZ O C O C U Q T QOrHjri •»— »J2Cu — CNC -H rHZO)3CuCuCuO— O O C O I OZ Zo• H ^>i O CN *.— •* rH p* O ^ 0) •* C3 UH •— £ rH rH ^* CN «C Cn W — * O ~-~ *'OjC QOI CU>^cncN3«^ O-H UHOOOjCCU J J » 0 ZO j j « » « » Z C « » QJ CU » r H Q « « eo'OCU'^O^'^'^i'CJCQQCUrHrHE •" ' CU Qg(U^»x^»^co«— •oOCrHOZ'~ • O'O-'^iJ njnjZZE jCi-i czO £ O O XI O CO Wi CU * JJ •— ' O O i* *H £ O O O O w r^ ^ ^ O ** U O 0) CU "^*U ZZE-WZCNQrHrH Z ZOl- CurH ZZZJJJJ W - ^ I U J C Nja.««— — .uoi— •«-"—! >i «»raj— ~^rHOCuJw*-*— ' " - ' O i c u o i c u o E c N O c a c o )— » OE JT x •» — 'U oTJrH o j J E C C / H C u E J Z Q J C

—'Z'D'OOi-'CJCJ'HCUQZI C C - H O C O i - O U C J C i - i C u C u O "^1-iCUONQ ^* •H-HuOQO'OCZ'-'CNcO TJ'OrH J J Q Q Q O O O O O O £ C Q O > - i CZ U U O r H I I I O I — — * JZ JZ >lQ I I I J D r H U U £ O C U ^ O O J

C V M C J O E X3-H o o a 0) cu T J O O Z O C U O OC O JJ jC O ^ O O O ^ rH Q fN 3 rH o £ jC O E E E E O O O E ^ O O J J E Ocu 1-1 CU-tJZ-rHZZZJJX^Z Cu<H £O Cu JJ O CuCuCuCuu-H-n CuCJZO CU CU-HCQJ3JJ 0) — 'O «— •*— • — 0) O — Cuvw CJ*» QiOiCN CUCuCUCiCQTS'O CuE-i~^CNE-i Cu^o

£ £o o

\ ic c0 0JJ Ul JJ Ucn cu cn cu.cu cu cu CuS cn 3 cn

•o atC £ uCQ E O ca

C co u0) C 0> UH C0) O 1-1 O

rH 3 O J-> rH O•H jj rj> cn -H cnO CU CO O <TJW J3 rH 04 W rH

min coCO XX rH

rH XX 0

/ri/ru1»i'0//V/5/

SS•o-aCd

B)U

CDOU

Ocn

8R300582

ORIGINAL

m ^3I CU"* dCz3 »

« da Q

cnjjrH3cncuPS

JJcncuEH

curHaCOcn

O•H XJJ "4CO UU JJO coJ £

T3CU

JJCO OQ CJ

cn Q o I m {!• Z T CN •cno — Q o •• ! o cnCN-H O Z O Q C O rH CU Q CN CO CNO

.. •— c 0) CN — O •«• Z O » C Z •» — —-H—» C U E > 1 C C N Q O — Q •• CO H CU — CN Q — C S>1E rH cn 3 u co W C U C N Q z — I cn cu -z £ rH o> a uCu 0) u -H 3 x: D O TJ ZE — ECNCQ.. Oi-irH—• Cu 0) cn -H 3Cu.aJ <TJ C CJ jj Z rH -H Q •— u Q<*flJZ'-»uo>» CUJ*: i-i C Ocj cu 1-4 cu — jc 1-1 z o < CUI-H u — E ax: rn cd o co ai uON-H-.rHCU E O O —— < «-l CJ JJ QlO-U CJ •» 'H rHCU.C — CUE O CU rH U O £•• O — I Cd CU i- CU — CU . C —•• 01 ErH -E cn EC —x: 01 Q u i oo -^cn cj o >-H —» .. rH Ecn— .. cu «. O fj —» O C I O rH E»6-«OrH>,E.. —. — «» Cu

—. CU .. x^ . U X I E (TJrHrH.QCUrH COXICCU'-'E *"^ Cu •- —« •£o*> ^. g ^» JDJJQJCUX:«'X:rHZCU •• O-HQiEQi EO* -— £—»

•H * r Qi Qu CU — £ CU 01 rH o *—• £ Z 'O *H o QJ •-•* *H • cj\ Qj CX CuEovoCu Cu — O O rH E •• •• OicoE Cu— >iO o E E o T a CuT3 ^ ^ ^ 2 «w CO i O * ^ * « ^ 3 Qj Cu OT -C n ^ j* )if * 3 **" ^ < ico r H « m CuO J C i - " E E S - H Q C u OJ-HJJ O Cu co I H « C Nrj u o o ••* rH Cu3DjJOCuCuCuuz O C C J C U Q ^ Q O u O o us —i

0) C « — — r H Z C U S O - C u C u O — O O f O I O Z ZO <};c«^- —.. CU'H O OVU«-»ErH rH '3'CNjCcni-i'— Q—T •» CU-H O^•CUNVg>i O-H UJOOOXCO) JJ.Q Z — Cu N V E >iEO — 3 C COT3CU— O T T T U C Q Q o i r H r H E — OiQ EO — 3 CCuO- -HO OT3*~i-i conjZZE x:u CZ CuCJ— —iOCu *-«UrHg Q i - i ' H £ O G Q Q > - i X ; > — • — » O « » C J O O I O ) — * CU — u >-* £

— <X» 01 rH -H Z O 1- CUrH ZZZJJJJ U - . I U J C N — OO 01 rH -Hm-»m>cojj —rHQCux:— —•— c u c u o i O i O E f N O f O C O ) in—m>fl3jj• O N B . r H X C C XTrH O J J E C C r H C U EXIOIC 'CrP.rHXICOrHO-HjJflJ CUCJX:O-HCdCd< OT301JSCU.»O4JX50I OrHO-HjJflJv • — cn c-HCjcoucjcjcjcucuCucj " » U C U O N v • —• <n— O «... cO'OrH J J Q Q Q O O O O O O £ C Q O « - i C •'O ....

.rrj .... £ >,Q | | | X3 rH U U £O CU >- O 0) —'O -'-'-»E flJ'-'EE JJ«-CZ.*rHCNCNUX!CuCUOCNCU>»OrHXl E (T3 -— E £3 g 0) E a a 0) ——H — * - » - . * . . c O O O O U —.-(.CO 3 g O i E C u C u•H3rHCuCuCu EE> ErHrHrHO"H-)-iUjQQOE.CCJ.-i - H S r H C u C u C u - ^^-H -H CU O CU 0) CU ' U O O Z O C u U O H - H C u r-rH g *. VO C*» l-i Oj — C CU «•»«» — •» O rH rH •» •*" CN CU CO — rH rHE*"- U3CO CO

u u *£ cj ° rHo'E>x:o'E%E"E"E'ocjOE'«J:QOJj'EO u u g" . c?. . £,cu x: Cucn vo x.oCuJJOCuCuCuCuvj-H.H CuCJ Z o cu CU--H cu JS CUT V o03 CJ CU— — — CJTCuCUCNCuCuCuCutn'O'OCuE^—<NE^ CuTD cn O Cu —— — >.,•a

T)Cd

cn cnrH " rH 4)CO CO X

CU O 0) .„£ > £ 01u

: «>c/jIC :OJJ Ucn cucu CuS cn

cucncn cCU O V- TJ1-1 -H CO rHjj jj CU 0)cn co c -H

JJ OJrH CU CO C•H cn 0) 1-1o cu >-> ocn > co o

u0)

CN

oJIR3Q0583

a

cn

3cncuPS

cncuEH

CUrHaajcn

oX•H

CCj UO JJO (Q>-3 £

"O01jjOCU

Ot rHU rHCO OQ U

— Q o » i o NO Z O Q C O rHCUQCNCO rH C

4) O I — 'O T Z o » C Z « — 0) — • 0)CCNO O — CJ.. CO rH 0) — 'CN Q — .* — --» —. XI —rrj w c u c N Q Z ^ I W a » Z E O — •» E 6 Mx: Q O 'O ZE — E C N C Q - Oi-irH— CU-H E —» Cu Cu rH >,jj Z rH -H Q — u Cu»coZ' - » u c U « . Cu C a E Cu Cu >, Xo> — x: >-i z o < curH u — E ax: rH cd cuCu jjcug rj O — <! "-i CJ JJ CuO-u O vo .. CuO in 3 x:OCU rH CJO&tO — I W CU >- CU — CU . ——0 •• j2rHEC— jc 0) Q u I co — « cncj O rH — . — ,_( > en rH cn cn >,O CO — « O C I OrH £ »EHOrH >,£——. —— CN rH O —— rH .. X!UX.E COrHrH^QCUrH COX:CCU^E .J ^ J J C u D X C - X I r H Z C u — CJ '-I CU E Cu EO OE EO)

O l C u C J J r H C J * - — — —> Q -H > CuCU' 3^-CJV3>i Cul— E CUO) rH O— 'EZtJrHOCU -^ -H C — -H C a CN—• O O rH g •» •• C U C O E C U — — >iO Og E»-i-H rHO ——E^co>o-^'-»-»rO Cu Cu cnxCTOTCu T30)NUrHE r*CuO X : u £ £ £ - H Q C U CU-HJJ O CU TJCU CUCQ-H . tnCu3QjJOCuCuCukiZ O C U 0> Q T Q O Cu — > x: JJ (N -HrHZcusCuCuCuO— o o c a i O Z ZO O — »rH JJ c — XJ

OIU^-ErH rH TCNX:cnU— Q— T — CJ 9* "H COo -H u-i o o o x: cu jj «. o z ^« co cn — 01 — «CO'OOI—O<»'3l'»OCQaCUrHrHE"— CUQ g.. . .-... jj .*-»

OT3 — VH flcOZZE £w CZ Cu^O«»g-» cOjQEQu-HEOQQQi-'x:— — o — o o c u a i — cu E — — a E rnacuZ 0 n CurH Z Z Z JJ JJ u I OH C N Cu ECuCu fO Cu Cu— rHOCux:— — • — C U C U C U C U O E C N O C O C C U mcu'OCu Cu x:

XT rH U -U E C C rH CU E X. CU C • CQ CUU3 JJ O rHaicjx:o-HCdCd< onjcuxia. — QJJX.CU o o cu • \o X.>H.G - H C J C O U C J C J U C l i C u C u C J — U C U O M V^rHCJNOO ttON ONCO^OI-H j j a a a o o o o o o g a a o u c — cn • v • ^~-x: >iQ I I I X) rH u u £ o Cu u o 0) . -.vo— o r-iJJ— CZ-rHCNCNUXZCuCuOCNCU — OrHXl g E — — >l 0> 01(0 — ..H —— » » «. C O C J O O . - » —— rH £0 3ECU g JJJJJJE E > ErHrHrH(J-HUUj3QOgjCCJU -H3CuO3>1 3C Q C OO CU 0) CU tJOO Z O CU O O i-H-H .H-HU XJrHrHUCU«»CCU'-t«'»*»OrHrH.»«^CNCUflJ«»r-l r H g C O C C 3 I C O C T Jo —m — — — — . g s: jc — u— .js >iO • o» cu o c x: x:r - i o £ x : o £ E E E O O C J E < Q O j J E O u u CO cn rH u (jjjjx;o cu jj o cu Cu Cu Cu I- -H -H CuCJ z o cu CU-H cu x: .-H >- o> o> -H x: x:a cu CN a cu a aco no 13 at* — CN EH a 13 ca o — co cn E Q a a

rH CO WCO CUU rH «OJJ X) ,443 <0 -HCU JJ <0tn c o u

rH CO tjCO 0) W «g

O 0) CO X> £ 03 CU ^

y

oI I coe co oJJ u jj ucn at tn atcu a cu as: cn . sen

*O T3at atto e cnn e o cn cat o o cu ow -H cn u -HJJ jj co jj jjcn ca rH cn <qjj jjrH at tx rH 01 CO

o ai at o cu ucn > c cn > co

mCO V0

COCNXO

flR30058i*

3»J

cnrH3cnO)cc

JJcn01

u0)rHaECOen

xco•H ttJJ "4CO S-tj4JO ca

T3atjjCJ0)

01 rHJJ rHCO Oau

.. •.. <- /— — » B CN in £g a rH o aa a — • aa 'o ox

VO CO rH V CNin CN cu cu — TO • rH J* (—. CN CJ U ——

ON V «..H CUV — "=> C > O—— o» rH Cg cn — -H -Ho 3 • — cn N• H -H O gc E — a — —01 T3 a-— — »cn co u g g^ (j V CuCun] arH a a— —. o I-H cn in— » E o v m oE a — « •Qj Qj ••» » Q\a —E v v•«* g 3 — —vo o a*H• • a cn E ECN ON CU 3 3CN V CN C -H -HV — CN Cn C rH— — CO CU rH

E E rH CO>. 3 E o> x:c -H 3 •«• cn jjO rH «H -»g rH g a* . —•H >i O O *-»<-*jj ui j-i • g Ec cu j= o a a< xa o — a a

COrHCOjJCU

rH

JJ3 1X) CN

».. •— • cn — «E.-H £axi aa aON ——rH. £ •

•V arH— a —cn m cuCU • JJJJ rH COCO —— rHrH COca cu x:_C «j.J -AiJJ J M

£ rH aacox: —rH JJ rH>ix: >ijj a x3 CUXi rH £1 >irHC N >1t C JC•H CU JJQ XJ 0)

rH COCO CU1-1 rHJJ-Q3 coCU JJC U

COCU «-cn jjCO XCO CU

icoJJ UCO 01cu asearQatCOCO t3CU C Cu O 3JJ -H OCO JJ g

CO. jj «.rH 01 CO•rH O> CUO 0) ucn > nj

voCOXrHXin

«.*••.— *•*-»ON *.g . -».— a^1 — E<-» a—— a

E E CUC ij ^ 3 CuCU * 3 C.U 300) CN .

in V rH VO « — »m — . CN 0*0• «. co V cn

CN g — » — — •— 3 o¥> 0

CJ E • 01 01•H T3 rH J* > CJC CO — CJ rH C0) CJ -H -H -Hcn u c cn Nu — 0)g a*-* <—>••.

•» a 0 E E E— a cj a a aE a a aavo ..acN «-»vo < vo• o* ON cn CN•V CN CO • • •VO V • O rH CNCN — O — — V*•» B* B

g £ ->i3 E 3 E £C -H 3 .H 3 3O rH -H OJ .rH -HE rH E 0) CrH•H >, o c at IHJJ U U CTIrH COc a* jc 'co at x:< XI 0 E cn jj

carHCOJJat

"

•H

JJ3 tXI CN

-.. .—• CO -XJ -H £a.a aCU O<o ^ * *ON XI •VO arH— a—cn o cu0) ON JJJJ vo COCO — rH•H COca cu x:JC JJ JJJJ (Q JCx: -H aa <n

JC *-»rH JJ rH>iX! >ijj a x3 0143 rH JC1 >trHC N >i1 C JC•H 0) JJO X) 0)

rH COco att» ^^

JJX.3 co01 4Je u

CO01 UCO JJ

03 at

ieoJJ UCO 01fll Q.sea

ex: u ojj at cnco jj njCU CO rHc 3O) 0)X1T3 t)OI-H atrH *O CO O•H C JJ CO O 3 CUcn aouH

voCOXrHXin .« _ ,

... «-*.— o* •»E ON —•» a • E^" * a o *. aa ^ * « .^ aCN E

f"Nj QO rQ Cu f*.• <TJ acNin o ai « •in v H o cn — •. . — (N V s*

•3* •. «w* -_r- rH>-.£-.

3 o* rH U Ocj -H cn cu 0) "- '•H£ . .* >C -O O CJ rH CJ0) CO "-"H .H Ccn cj c ca -HU U Nca •. CU •» —-E" a gg"eT^— ao a agg ao a a aa aar** *. vo *CN <-»cn vo r-CN • o* . • CN• M CN O rH •m v . v V cn

(N — O — — V.• «•»• ^g E -

>i3 E 3 E EC -H 3 -H 3 3O rH "H CO "H -HE rH £ 0) C rH•H > O C 01 rHJJ U )-( C7>rH COc ai x: co a) x:< x. cj E cn JJ

carHm4JCU

"v r\ rv r- /> i~

Uit/(j

lli~\ '•-

<

4

Eaao |•*» •jj ^

•H JJE.H• H £H -H

rHCo c•H OJJ .HO JJ0) U

TJ JJ 0)01 0) JJ•H T3 0)iu 13•H 3:jj O «•C rH T3CO 0) 0)3 jQ -UO1 O

u 0)JJ O 4JO 0)C T3 T3

01. jJ jjT3 O O0) OJ ZJJ J

CJ 01 1CU tljj ECU JJ Q[a o az1 0

1 T

z Q a Ja z z I«.cujjOz

A//•

/j/

^caK- 4

X•oCd<£

1jj0)25

••0)uMOCO

1Hi

OJJJ•H3CO-

2 S

JJOJ<v

£_CO

5x•H —<JJ> &.CO JJo <go ac

„ - • ° SCM *— CO * ^ ~ - > O _ j i- — « E a cu }.i3cf)• c ass c 'O *- CO e* Q. - n- flivi cu ao Na eg r- <s cCd O.2C *-» x^ucj^-£ cS --§. a)?"0 §.~ -2s1 ' ' 0 -

- . .JC •• Q. J3 Q.CO > Q. JJ Q.COjj r- Q. Q. — . O) -or Q.CS* Cd COS — •'— OE Cft '_ ° U CU 00 O Q — —OS- O«C Q. C — L. SB .L. Q.«— «— LO — « 0) O — Cd COO 0.— — —04 - N CU 3 O T3—. *-«. C JJ -H CO fr. •-*_cco<s E " O - ja o > m « > - c cCJ'-O 3C3-— • Q. J3— •OCU'^CO— • H --CUX} CX O f f l t - N Q ^

-Q O E _1 Q. L . X I O C Z C JQ. O O JJ — • 0) v^

S^«'->XJ t-"O «Q.SCUSO. x:co oa,a.ocxQ. oca'- c\jSo Q.•- I U-N ^

»— C-. - • - .OX) CJ JT 3 " • 0! vJ3• . •— rn ex Q. rH E-I o •> xi *•'» *~« o •O ••—' Q. CX CO \J3 •— I E O t. CM

rH C O. d ( G) .«* 2E CX JJ Q T3 M? CO CJ OjC X> CM * -O *•** C ^ jQ «H s * * Vv CO * CUjj xJ *•- •* . t** O JO CX C3 O ™"* rH * . JCU; 0) . i— «• Q. E £- Q. Q. • Q. <C E JJ 03 Q Q.O O O * ~ 3>-tQ. CO O 5.-O JS ZOOJJ"^"^*-* E'";'O<~' a j i js--*3 S a> ex a a ca ex v Q o ^ -m13-" ca o zo cj —• ex a z oca— z E-> u, «-—JTCH-—

oj oj ^

c xj jj °Sc a t o = 2oo j-> ca -*t, o jj sO oi ca co 3 .oj u w M ^ j**<TJ jj ca co. -H 203 g ffl 3 • • £ S•o ca cOJ V T) CCt C .Mo CrH c — t j j c a >, *°•H c a c a o o c a c a o , cj jj u.

C t* rH L» ca CO -H .ca - o j j c a •ojju " S f c «bO - H 3 J J -H3JJ «S CSO SOS- C J C O C U U C U M U U S-CU

ZZ Z «S Z CO H 0 = 0 , 0)

ucs cs cs cs cs aCd Cd Cd Cd Cd oa a a o a enca (tj ca ca cacu cu cu a. cu

o

«CU OJ t. C« C. t. JJ—. -o *> coo cu -u a> t.T 3 t - C J J O J J J O J C J J C O-a m at to -o j-> tn -o a> ma. >3 >»•* 3 S - - C 3S---|C 3>>E B-lCX "TJ cfl cd QJ cc CT) *O O t» ZS - (Tj 3

v£> cfl 0) CU >>— CU 0) >> 03 O CU 03 -O C CO CJ§•" £• CJ &• T3 O t* t* 00 CJ JJ CO t.

00 OJ JJ O <fl OJ J-> O 60 03 (033 E -.J COOOC <i- CO CO £- «-. CO LP C —t «_• XJ O O) •HCO>OOJJ3 t. 100 !• 13 t. —• rH JJ t3 OC3 O 3 ' O Q. 3 - O O C w 3i.CO— CO* JO-J IO T3 CO Cd vJ3 3 CO Cd .3" -O O CO t- XJ W CO Cd fB

on PO m coco co co -co ^. -X " » CO«- »- «- CM CMCM CM CM CM ^

AR300586

OJJJrH3COOS

«H 3

S<««_, -

3$Virf

OJ

CO.— 1i

§ xJJ t.u raj

COrH

CO CXca (tjo co

•oojO)

E -1 -3 'S•H . Es — » a•a E Q.eg cxu cx r

It— *£CX " 3t« •-*O CU C• a. cuC\J CXrH— O CO

t*4 •» «kC •— ><-»to a. as. a. a.

-•• o e—E ———0. E rH

3 COCM -H It• S cjCO O -HCM C. Z— • JC '—•

CJ ••* *«.=~13E ^M^ VJ3 f>- O

JJ « • Cc co co -H

011— t2S

__*

jj

§CJ

COCMX*——

|U0

1acoon

o cojg Ca v— 3«* "o

•k

ilO CO=r roCM —

CU **CO C CMC CO •CO N O

31.JJ -H CJC >> COCXJ= rHCO JJ >•Z Cd X

OJCJ•r*

CC8ooo

COz

f_COJJra c•o ooCO CO

€

O*Nin

o*

CO

'u - 3ca Q.'E

CXT3(0» irv cj

Q.CM' -•— ' E

CM CX

>-• s- co»-H •

§ -—• •H -- »E E 0O Q. CU CX -*HJ= CslCJ vO*vO -*^ S"-— E S.E cx a.a. u aCX 0) CO *—a. 3- • nco CXCM - a.• o • «- cxCM — ""' O— - -a «-

• CO CO —E XI OJ CO3 CX CO _J COc a e -o•H f8 - -§CO 00* Cin c xi ca<H o ca a >.<s — ' x a. cj

OJCJ•rHC

OJ (0rH 00

S S* . £

:

COCOCOcatac

•k•ioc8

1avOSHU* ^

§ a•H CO

O rH CMz «* —

OJo-• OJC rH

1 1

CO3

CO JJO E C Cco co co oc-, CO -H Of_ t. -0 503 JJ CO COOJ CO U rH•0 60^ • L »^CO Cd 3 O

COO"*in

L.

CXiT CJ --»CXfO — Eo — c a.CJ CU CX

0) CO§E CO <S r-

Q. C"* Q. 03 '~> OU 60 E ——Oj CO C Q.cn • nj a. E^— * . . EE jJ — • ro -aQ.-H E — CBa. ca cx— o~. -9 °- -CO O E — ». cj cn 3 EIQ • .«4 t? _^_^ *— • y CX

Cj* — c8§z c tnO -H CO *-

*»4 ^ _" CO ^* *E -* ^ O

jr "H z a. E .CJ rH Q. 3

- >»*«. e- c— . u in -co** co • ro -Hin cn o CM co '—. — — co EO « Q.— *— C CJ *~* CX

E 0 C Es cx &. — ' Q.ro3 a—i eg Q.,-C ^v•H ON ^ M C3 '§. Q"-*OO -oi- z e -coa rH JT a cxo coz

wo•rH OJC rHCO CB00 JJ

<^ £

COz

JJfc sco oC CO -• OCO t. TS 00fi jj ca ca•rH CO S- -t•p ooCO Ct) 3 O

COo•xin

oo

0)uoto

sAR300587

<"X

rH 3

a-S3§H US '

»— t30)COCS '

JJ0)CO6-

ucu«Ha

.>»§ x••H •**JJ S.

0 (9.S*

•oCO(H

CO CXJ-> E,a o?

^— xi

inCM

g*£r\IH^-— iaCOcarH

JJ

£rH

|

C1•Ha

coO•HC00

0

gs.CO

iCOoca

CO

COoin

.*••••*_jQ

CLafi— co— 'CdO

•»

XIcxai

CO

CdCJ1

CM

*~

E

IjjCO•

Cd

jjCCO

160Co•o

•os•»

fM,

•fla.c aot. CT>»- CM

•» St*r— S

O' €Js ca — 's. -co **-*CX 3.

5o-S•*""•* CNJXI —Q.Q. CO

CO«— COc- cCM CO— 00c•**c -E 33r3§i«* ^

V)— tcQJQ\

Z

C8toca<~o

ax

8•**CcflC ){

0

CO•a.

E28Oj {.E JJ— CO•oCO Cd

9COo>•»in

o .c g•H CXN - Q.-1= 0

*-. Q.CO»«. Q. •=r O. co -^0 •— '=r cu

•» »* O— . 0) •-•E co cj C

- Q. - CO — CO» Q.— •• C C >>E E 03 0) CJQ."- 0. 00 COCX ' Q. -C £. -

CM J3 ^ "**CO *-* O Z »*.in co - CMCM E CO -<-» «

"E r? T ^3 — i CO Q. T3— « >> cx cr> ojE c- a. in -a- coo cu o - — • _iU CO rj JT

5^^— i-g- E E — « "3 0.«-» cx a. co ca cx

**. Q. Q.J* Co- o ca co. O\ «— -H •> COo • • z— • co in -o

c E JJ — a §*<—l ^ r— 4 — E -H CO C O g•H CB O S. in CB<: CQ cj — i •— . • cj

OJ-HCOJJfli

z

JJcCO•H CIIoo coC -tIc-•a o

i ^vCM XI

CX*- Cd Q.

CJ^_-6~ OJD — >^Q. *- CXOZ COin a -a

*" CO -H<S C 3cj cu coa 3 —^ "o Q a-e-> c -z- |S*-» xi ce coXI CXCJ Ca a co•— OJ XJ XCM CM a 1— — • a. o

JC<c cd cn jjCJ CJ CO t.&- a-— o

OJu>««*c(TJ00£

ir~COjjCO CO2 CO OJ TJ

L. C. L.•o ca cu co0) — « >»"i 1 8 o==^c^5

CO0*~in

cEh-M

^— %O'z — »a cr— zac. —cioQ. CO -HCJ CM

•k ••

" r V

•Q ^a aa. a.CO Oen in• ** M*

E co3 COC CO•H CE C33 00—t C« fl

«k.*•»»* ».

11^ a•O CMCO C-

OJ

cOQJ

^

K r» «

az

OJCJ•»4cCOJ

0

z

COJJfflCO VCJ S.«3 J->C-.CO

C^2

COo"

«"Xr-

0)(0COc0300cOJ

^ 3___J-Zy -j--za -a— 03

0)0

"~ 3^ ^JO -a.a u~ -y> -«3 Q.•*»4 —E rH CO«< ——

COrHcflO

Z

jJ0) OJ -O"H t. t.

•o cu co03 — I >>00 CO O3 CO XI

^« MK

oo

•o-oCd

X

COul-l

--%jjsi

>•••

eojj"3COCOcs

JJCO

£

S.COrH§•ES

s.

§x•H — tJJ {.

S "cO-3*T»COrH

CO CXJJ ECO COa co

.•

*

za, co•o•H

O»H

CJ

gCOrH

£jjCO

OJocCO00 •i.

CO-3Z

EJJ COC COCO f-•S CO•aCO5*

-3-COo"

in

2 1— a-H CMCO -:* — CMO g CM-H Q. ——jj z a.

"Is -co — lo• 'j-j — • • E COp— • o **.vj-> a. _jE CJ vj3 «-; CX

"• T— " 3co cr o CM z|f C3 O **•* sr-—— S_ tSJ 0—— t-H — • E

E - C 33 -H p-T E co E'e --I z cx<s cao >>a^ _cjx: co o — ••cj ca .. r>- E —cu — cx §- - cx a. a.— — a. co a.»* E o oj —f\ L J ^ * 3O - 03 CO •— CO — • 5)0— OgiScioiE-3 Q.Z 3 >>Cg -r» S-•gl^-^ 33 t, =r E c t-rH co CM a. CB cu<x ca — o.=» z

OJpH

5*

CM0

CO t* &•CU CO COC- rH >>jj oj j-eOJ CU OO.X. cj3 CO JO

dj

a "joI Q.»- a

*"* l OOJ

-— K SH^

XICX * •* CijCX— CJr-. -9 HO CXco a -^ -* *"

^Si2o CM a aa > •— a.«- cd co in- c_) -o -V

—— S .H ——1 £-

-CM O CO-- — rH TJ

S- ° fea •• op—— CO -H

O XJ C X.CO Q. CO O-3-0.1-1^ox?^<X • JJ CCJ <j3 CO — :H — Z >

et

§

co=3Z

£.CO J->JJ C OJa a> s-3 E -» 0a) a* 03 o3 t.Si Sbi. &c-cocco^3 • O «- 03CO 3 -D O JO

«•CO0•in

E ^~ *

°" a• r>-

CM '"••n1* O

c 3o—i CO>"- -H

pp— • <pHcrcoa •-*•—••• -*™OrE Z3 a•r ^rHrH Ofc JJJ

£_ 'H

CO

— x7xi a.a. a.cxin c—— w

NMT P*%co crE co z3 co ac c —

••H CO

3 C (0rH f3 CO<c z --

OJrH

JJ

z

1CM —T™ 25aX. COQ.T3cx ••-*&.vO OCO X.

^\

. CO

<* COa -3,1 JC•— JJ

-"*X. XIcx acx a.CO O

*-"—4 CdS^

4

§

CO

JJ OJc -CO (.E •-• eo

JJ CO "O -Hc co ca caCO £. £- COE J-> COJC• CO C CO"O 3CO « O C-,CO .» "O O

-3-COov~in

PM

. O 0) —r- CJ W Ein co a.— «- c a.

1 a. -?°03 CJN —03 . •-• •* <*.•»-• s 3•--s Q. -<HE JJ Q.T3CX-H C8Q. «3 CO C

X. • 03t*"- *-H C7 pA»— O —•»^ O *-

pH P—^

1 — -« §.•H 'i* o ao az cj>X. C7 «-COCJ • — . OJO **. — —•

"E c I;CM 3 -* *H

§ .. — c^O

>, (, -- >--§£- rH E

CU 0.0C CD •« Q.-H

3 E Z CM OJ< a^—>— <e

co"cBjj

*

£_CB>»"oXI

0)u>J

flR300589

OJ

3OJcocs

to

§x•H «HJJ L.(0 JJu cao s

•oCOrH

t

IX) XI — .-CM O«- co cx cx .-a —>. c o c O ' — •— - cx Q.— z t. a «- •- c CM aa •-«- x» —• - coz —» 03 — z,H — z — a- o cx .c — •- i a x: —>,a — a —»cj\ e— a. co jj —»co z jj 4c x: z z a — — -a c co coa -— co cj coO JJ <—' CO — Z O-H O rH «• c SB ••• OH "OXI Cd C — CU CO O U XJ >,— CO •—• CU S- -Hi. t. 0) Cd C C OJ O •- .- C Q N •- C O I £-(jj.-CO N C J C O C O CO «— *H — CO ••*•-' ZCOCd— COrH O«-cj'—x: cac-H 3 <—' x: ao— >—coa-Hjc«-">—'— a j j - - c o i o 3 > i -H cj z a—i a> a z >i o

a >-Z CO — X. — CXX OCd — '-Z>,COX.I— XOJ _z — — —• a o -o^-ijjcj—i -—• — x: -o o »— -v.t. -o.•—a >> z !- «- -• co H>> cua jj •-it. -cocojj*— CX-Hza)c^--o c x c - . - c czcocot.O'— c c c o >»CU —' C -H r H ' - O C U C M — « « - - H 03^-COO-H CO CO H • •• O Cc co > cu x: -— .. N -a — > x: cu t- -H jc «•> o, N —» — -Ho j c o N r H - o c j a o e o j z a J J C O N O X I O — oc ixi-.r=»jTT3C>>"H.HZ-HCO -s_.2«- O J - O C - H C J — » a t . C O O. ^jj-Hcojcs-a- x:xi«- - . - _ - _ _ _ * - -

JJ O O -H •(_ _ ^ _ _0>'H'-4-rH>,.— CJ.S3B COO

^JJQ ^ o - H - c d c a pExjcjx: ^ X O - H - U P —c * ^ *» •—' *•*• * " '— ^ ** «•* ** w w <O t. {- O JS — CJQJC CX.CJ'-' O U U C M-.03O-.OQ.5lJJ.- E- r- 03 OO - H O - H Z I C M C d — « » I C O JC -H ••rH-Hjc—>,^«cM - a — CMC O-HX: —x:>>cjx:j.: .^-.-za -ca -H>,CJS

CU—><sox.- . ^ JB a jc u - C O - -

>>cjs— CM- H « « cuac_ _ — jc T3J.: cxaco -a —. •- 3 z ca• •a — -jj ojj'-dzc'- i a •— rn •— js—••ZCO '-CO ED— »^C8 CMZaO JJ•o co E ozao jc<- -— z H 4 co_ _ _ ••* c •• c. t- z »- g jj •—> x^ os

— CUCXCXCO.-ir8— O 03«-«^>-'.,COXl CO '-HO— ••axjcx cojcou — OEC X - ' - C C U — L...acu-—zo om-HjjcjNO >-aeocoft-iocx— ta-oa i o— z^oa— .-ooaxzcocos — z -o TJ o t. acx-HZ 3oojcoooo — -H a>-»-H-»H.,oocxot.>-'Oj-H-- ., -. CM Z C.S.O-HONa.t.O -CM^ -* •.* ^ Q ^ Q ^ ^ 2 O O " nC ** £ -~H C *"** O

O C r H C J U U r H r H J C O O O JT O -U4Cd.-COX:HO C O O J C J C O O 4 — S-OCu— OO O O r H O I r H C C M O O iOt^-O-H rHa a -H >» <o — jc coocorH.-oa»—rH>,.«.-jc_i i x: x: .. -o N g t- >>— t. i jcx:—— oxj^-fNjojjjj»---) cojJ»x:axi«-wojjaxi-H

_ _ _ _ _ - H - -—4 o> CO -t. COS-COJJZ-H -O-^COZCXt.cacajJooa<-«-azH'-H aacnjj.d>—a^-aa-c—'CXH

ooen

T)T3Cd

0)-S

O)uV.§ §St. S «.oj co co cu

CO CX CO Q.3 CO . 3 CO

c. c.co c co cjj O JJ Oca o ca o3 00 3 00

CO COCO >H CO —Io o03 £, CO C-

C- COC- 3

COa

in inco co

AR300590

•

»-NTI-1 1s-S5 §H CJv^

!_ OJ

COJJ3 ,CO0)cs

JJco&i.<uifl

V.O X•H -«HJJ t.03 JJO CO3Z

•oCO

J2 t££

CO CO -JC C —JJ CC -CO p-s •» JC —-H a — jJ>, z a co co •-c — z - t, ——< — «— o a> •- CO C- Z-H — C Cd •- O —co >.a cu o •— « —' cox:zNaax:4

C JJ — C ZOO—— C U C O CO 1 — 03 H •-a N o co xi s. —z c s- -a o — cojj — a— . - <y O •- ' s- -CO) -Z— .a— L. o— OJH*- —c u a o x i o — cxc z t. o — i jc •- o i «- eooj— o x: o — t. cojc — i o — acxoj.-cjj co x: >,a z o -— coCOTJOCMX: — t. CM a — •E — ' jj « - O - Z >,O E— «-0> — 4rH-- — Xt, o a — zao-c - coo -. z a z a o «- cu c-H ca — z •-— • — * c coX.-H — — 1 a «- CO No>>co aeo -— « 3 eo x: "o co z c oj i a -H cu —§jj — i TJ — o: - zo-fiacos.— x: — CM •— H -» z£. Z O £- E J-> » >» —ca ..-H o i- 0) •-«— eo »-x:,— -x:— « O E ' ~ > c — jj cu*-a ojcc.- oa •- oj a tu TJ»— •ZOJOOS-Z'—CiZ — 'a^^t.— • t. o«— >a o^-'-t.Z JJ>,O— ZS- — O•— • e COJC-H.C4— 'CXCdarH

L.JJJJJCOO OOZJ=COO CdOOaCdC.CX,— OC «- C S 0 0 -HCO O Q •• "• O 1 O rn «»4 >tN E XI — — i- 1 JC — O JCc o p-oax. — CM oaH-uCO t. OJ Z Z — • --— Z COcacao— — a'-'-a— • i z

4O

J_oJj -'CO Vco a.36 CO

t.COMca JJ3 E C Cco cu gCO CO — 0O (. "O 00ca jj ca cae— co t- — ic. oo3 • CXt->CO Cd 3 O

in«>.>x=T

••=< .>.a co —z . c a— •- i ca z

-— • •- jc •- — •t. a — co jj — —co z a - c u a oa•• £ — Z— EZ t3Z-— jj — a — — —a co cu •- t- c.Z C Cd — O 4 OO>

.- >-..H CUOa-HO r-<T3— >> sazjcr- x: — •a DC c ~-p o o.-Z C •— O) 1 CB 1 O—— • CO > •- X) COt. -HrH• -N— — o«— cjj»— >>x:co -— c >ia t. -ojco - coc a co jc z o — Q.H — — -HCO Z X! JJ — — i O - >>1x:— oco x : - - c - i — x:JJ 1. O CO O — Q. .-..jjcu cu o -."a-na OCM •«•— p—cuE T J — i o — az c -— xi a zo — cj — -. — o CM a az-. E JC O •- — i -Z CX— •-OO'-O-H — 4JS«-— > «—— • s. — x:aoo- ocoaixia i oza-4— cot— czo — . z >»— a e «- cc -^-. >) 'CMx: i i •- co — • x:•ox: jjco CM-—3 jjtoO J J C O ' - O C C M - a p H C d C O C OE 0) T3 •— Z 03 -— Z O O E Coz—<a x.'— •— H H o coS- ..Z'-JJ-— £--HCD «- O •— — CO .-XJ CO « - « - O >>— -H aE'~sCi.c-'~"^3x*-a x: coz oa cx co a a — • -^— Z 0 13 — C. Z CXZZ<-COa — (0 — o — coo— — ocZ i. .. E — i C^-t. UCU— E jj o t. x: < •*• cxtd 4 o N

t , C O r H O O O O O O - H Ccu OJJX.CM o Q cu L.O.HX: coC C - . C O O E OO OX)c u o o r * t . o l a r H «-CM ca -HN E X J > » O . - ijc— -.->,c o p-js-Hj-J — cM oa«-jjjcCO U 03 JJ JC — i - - —42 -COJJfflcaocdoa'-'-a— "-H-d

40

§JJ p.OJ COCO CX3 CO

L.CO JJJJ CCO CO3 E — • C

OJ "O OO CO 03 O JJ0 .- -. 00 Ueg jj oo ce con- co c — >.. 3 -H3 • O «- 3co u -a o o

inCOv.c>x

a r-% (*\ jp f \ f-*

oo

U-4

flR300591

03jJ

OJCOOS.

jJOJ

JJ S.

O COO X

a1 a14

>J3 I CO Oso c a co— «- CB C

- i- I 03co *- jj x:"O CM JJ

•- L. —— «—' C ECO, — O .O CM Q OC XJ — O. - .-X. S-. .

r- .. cB CO CXJC Q.'- — i. O— > JC C CXO X. OJ

JJ CO O •- CXO JCcu or o co in — cx oE jj oj c x) •-— tco a cxo — -a

3 CO Cd -» «- -CM »- — —.-.-(•o -C •-— •— XIX),-»r*. -M • - cj — .Q -aacxcxmja _ t. P— — xi cx«- z z acxo.'ooja.t-cxcx — —

i. JC CX" «— «— CO CO ~~ ~ — O CO "O COC M O O .-aaxj-ocaa -H x: ca xi•H oj— zzcx—•cazzcojCJJt-oa jc -H j2 -~- >—' Q. L. x; •— —• c cj co jj u •>—* a o >> rH - x, i azo>>acx O-.J ca —• -H eo o z—ca«««-o z*"* a —• — oo X : E C C J J I C I X : C s* .'., .-'1! "*cu s» c o a a a o o c a c u c o c o - H C M O C u c u - - o —«- cuC«- CO • I Z C O S - O . C X E -> - N C — •- CO PH «-X) --DCO — •" C vO I CO— S - O O O O — rnCM'-C CBJ3— CJC— CX»--Hxixi- CB—• c jj-ti..,., !>,•.— co jcajacaoxicx .,jj Q. xi x: — oj«so)x:Q.CLOMx:'-x)xi jj cx cxx: —• o. •- oCO Q. a. JJ CO - t . O J J C J O O ' H - H J J -CXO CU CX JJ t. CXO — rH§ C X C O - O ' - J J a •«* S. £. .C CJ CU i— CXt- EO COH O^JCO O-- C T 3 O O O O O O O O O O'-CXO

t. «— tn t. £. «- I I O O -H —« O •- i. '-CM rH {. •— lf\ t. .-•— «— CX O3o oo— xjs-cx:e—o— x: o o— c.— « a a — - — t x i o j c M t - o o o o x j — • xs a o r-4aa—>xtaaojjJSZZJCX:Q. - -cat--*-.., cxx: az -H js z z jc cxz z — coo •— •~-> oo ex1—»— ocoaaco cx o o. — a o •+** •—-• o ex—- ^ -~^ jj

co

xT3Cd<4

4 4 0)O O

••01ur)Sc c oo O cnjj t. • jJ J-01 co co co

CO CX CO CX35 CO 36 CO

3 L . U O J 3 C O - - H O JCfl^-T3 t.-.-'O

C O C O . - . - VJJ3S.C.O C T3 CO OJ U O J X . C O C BC8 CO rH >, « r- >,CN. T-J -H (TJ J CMJJ&.COJ..c - e t - c o o L . O J C O C O O

CM CM•v *vo o52 SR300592

CO

0)COcs

eo

CO

i

JJ C.CO JJO (0o z

E •-— — OX)XJ .-CM C.Q. 4 — O Q.aoE- a o oco CM i a

OJ 03«— a -in cin — —- .- coz — — oxi x>aa.-x:HE-— cu cea a— jj xi c in x:xiaa o xi xit- a a in

*- *- CX fl!—-— cx ao

(fled)'

CM- O

"~ a jc.- op-^ | Q -H —— »—X! g O >i Oaco o x: --CM x)a -.,«•. jj — o— 03 — O XI a t-o i xi o az ooj co •- a s- a.*-* >

a— H a in o cu o o — — o cx ——a—aaco ao a—a

c •—> a o s.CO XJ —i O Cd Ot. ao jc o o -H

cocr>

4O=» COu

9O

oi-

VJ COCO CX3 CO

L.

JJ Cg03 CO 33 E -H !_ OJ

CO CO CO t- UO £- £- TJ CU COC8 JJ 00 CO —• >»CM CO C — CO JX&. 3 t. CO O3 * O 3 JC COco at TJ xi co xi

curHco a CM1

AR300593

OJJjpH

mcocs

4 ^

21arHiJ

.13'

eoCO

CO

fc.OJ JJO COP X

•oCO

X) -—— O CJ TJ• Q. i *— xi Q cd in a a Q —' iaj u — eu °

QORIGINAL

—•a -a zo. z fc. oj zox» i - «- a i n — a . a i o j — o- i n — c x ,aoj o <— z c —< •—a fc. -" --CM a i g . - — — co 4 jc a i E •-ao"—***— •- z CM i. — - fc, o o «- .-at CM fc, '—.in z 3 — x) a — — oxi co •— jj a co — — •—• on— PM »x) az xi .-CM a -o c. x) xi «-«- aa «M •—• a a — a 4 p—> o a -H •« i i jj a a4 — o az c o o x i a l a o x j l j. — c u a i a o x i Ea> — c.- fc. a —eo Haoo eo .-O-QOJCMJJ - H a o oc caoa*- -a i oo CM i a t. •- •- c -— _.. Q. . . CM co CM i a s- •— •-(TJ co x: —• a —' CM - CM ca — ojeoxijca*—«— c - CM cc —x: c jj .c •- a z t- -— a -in a xi x: c ao Q a — a -in a njj nj cu o z — o •— i z *- >-z a jj «j a tn •- •-j5 z i z «- •- z acu jc o —• — *-* rH eo —• • a -—< •—-a cu£ co ^>— i.— co— -a — ^cxg jJ fc, {> Z 4JC--C —Z-Q EJJOJCa.Qj-.fC C — Z XI- - - - cd o o — ca cd — ao.*- ocu cozaaoeococd >—' a co •—o a co x> t. o •- ac EEa-H^^aa c t. o •- aca t. an H -— co coa ooz>> "-CBHH—co xau u — >-; ijja jacm.cz £-fc, — x:a»«— CM — jc x)cmx:zo x>aoj eo *-'-ao3 jj -^ coo *j c jQjj.-.-an .j-_>3--a ccMJJCM'— — aaacu — seucucaaaacu'— — aaaco —.-—. — a i co - j 3 X ) p z p e o x ) •--HTJ xrzzag^-a o z o c o x i— CM x) fc..~caaainfc.t~r<fc,ca *~« CM .H •» jj — — oaams.^'t.cc.ja-ain-jJ^^ozaa^Q.. o c u a -9-5r'r-3.^_!^t=--Q._.Q.. oca.a TJ a - .-xj>-' a o f c , — * N a-oox)E**g o a o t . — < Nao a «— i — fc, —inzfc.cux:c«— ao—laoot.ap-i^tn-z'.coxrs'-L.CMZ x)ojcu — o x: o co p-xzat-Sozx: — o x: o coCMO •—-.-ojaocaa —> jj cs X) a O J Q O o tM^^oaa —< jj m .0 a-H a P— -a ojzzeox:co..oz rn C M S I O —zzcox:o-,ozax:zeu^»— •-jc^'»-'Co—»jjfc,>-p ajc-n -< fc,4-a^—'co—-jjt.-—•z o —• -o a CM-—jj 03 — >» co o z o > < a c M - o o c 5 oj~<>,coo•*^ -~> ,r-a'~ j - j c o c o e u j c a c H — < c o - ^ — • c z O ' — - H H E e u e u j c a c H — « c oa co fc, — a a E c c - t J i — < i j c c a—<•— t.-jc o c c jj t —• i x: cCO 3 O tJTN X) .Z CX O CO Oj CO CO S* CM CJ CO CO .5* O ™ CJ I fc, CB CB CO CO S* CM CJ CUc • — —* rH a •—' • fc. a a E - r H — M c*— eo-^ CD a a E — -M — rsco *— fcj x: a a C M O O O O — > > C M ' - C co -. .«EJC ••••*• ooo—>>oj.-cXI^OOZ g - H f c , f c , f c , l - C - - CO JCJ3- flO-—'— -— fc.fc.fc, I X . - — COjj a -H >—••— fc.axiaaoojjj'— xix) jjaxjjc—«x)X)'— xiaaocnjj.— xjxieoaxreu o z ^ o o o - i — co^_-ao coaajJuaa^-aoorH-HO) -aooo e u c z o -a o o o o o oo o ooo o ' ofc,«— -HPM CO— fc.4 O — .H O «-fc. --CM -H fc, —• LfN fc, >-•- «— «-OJ -H PH O •- t- '-CM —io >»>>jc O O S J S J C E - o — x: o o— — x: x: E — o — x:--•acj=jJ4p-.Hpoopj3-Hj3ao -Haa-Hj3aaj3aoooja--jj5ao.- — — .o — ->cdEao icoaacoaoa— a o ^ 'OQ. '— a^-aaaao-OQ.-—-Q

4 - 4

g . • g-J t, JJ L,n co co coco cx co aat co a. co

O CMO O

fc, 00CO CB JJjJ _J • Cm _ eo3 C E •-•

O JJ CO T3CO C CO COo -a co fc, u cs

ooCA

TJ

•JS

oJJ

COUpj

o -oCO CO g J-» 00-CM -O - « < / . » _fc, C t-> 3 003 O CO • O COCO CU CO Cd TJ —I

in inCO COx *xCM CMX. >vO O AR3Q059i*

*-Nn-..,31>«.

OJJj305COCS

JJ0}o

fc,COrHi-&

^§xJJ fc.CO JJO 033*

•ceoco aCO Cua co

.

.-

COrMXJCOPM

CO4j_>

iCOJJcaa

-H COca cou —JJ X)3 03CO JJz oCOco fc.CO JJ03 XCO U.

coJJ fc.OJ COco a3E CO

fc,COJJca jj3 E C C

CO CO QCO CO — ' OO fc, -Q 00OJ JJ CO 03CM CO fc. -HC- 003 • acMCO Cd 3 0

vOCO•J3->s.m

o —•O • E•- co o a— eo v a.- g _i —

p— Q. •»E a •--< aa. — co •aco E j* oo a o v p—— o a -t — Eo • z a• o in t. ao v cr* •- cos^ «— p co — • > oj— • E r- .=r§0 a— co— aco •—. .-, oc E fc. in •- —OJ "O CO O •—co ca ao E ofc. o ao a c4 o • a —.-cj o r>J• -p— . \/ tn— i;c~g JITa. a E >, • Sa a fc. o ain a 3 -v ain o o —CM o in fc, —<=> ' § °• O O Z 3O v .~4 ov >— ' O •- C v""' g """g •—*'"'>, 3 E a to gc -H 3 aco 3ErH -H — «

-H E ^T •-— t•H >, O —— —— -Hjj fc. L. • s aC CO JC — Q.JC4 ca o — an

OJ•—t03jJ

£

*

r——— « 1

jj oa3 "»--•*CO eo ———— -MX)

a §.G. «-cn 04. a^-<vo a— CO

O JJeu vo 03JJ CO PH03 — 03-H x:03 CO JJx: jj x:JJ 03 CU

Cu "« •«jr —rM Jj rH>>x: >>JJ Cu X3 COX) -H x:1 >,-HC N >.•M CO JJXJ QS CO

-H eooj cofc. —iJJ jO3 CO01 JJ•z. o

CO0) JJ

m id

c0JJ fc,eo eoco a3E CO

JJE C Cjj ca co Qc eo -M 5co fc. -a ooE JJ co co

— CO £- -HT3 OOco ' a<MCO Cd 3 O

sOCO=r^in

•M rrjrH •-H in >,,>>— fc, CT"—fc, — 3 CO Eco o • aco S fc. — a3 <U v«• -H Z *-* t>-

a t. p— 3 CMajr E — vo a c —in a coO •- -H E• —— CO O) 3co E • co —— as- ~<at— >--«O — — 03•-co E JCc CT- TJ ae-eu 0 CB aeo • eofc, O -. — —4 v — E^^ * — «* a— s's -H aE 3 a co P-a— a^ fr~a E o •T3 f- — • CMco co — z vCTN O — ^vX> «. fc, y— t.v — O E O —— E a a > vta a arn —>. a o •- •c o t— co o§r- =r — •r>_ .-co •-— H « p— » » P— s CJJJ> CM g O E Cc v a v a --H4 *~> a--* ar>j

0)rH

2cu

r--oocn

COu

o

SR300595

3eo.COcc

SI

J-> fc,ca j->o coo z

S fc.3 .. CO•- — > —

—— •- -H *«. CT\ -H EO *~* i— ' CM CO -H CX•o • g >» • o co a•• ca o a co.— co ^ a a> — o --in

•- E — 3 •r' CO v -— p~— a — E • — • E cng a • ••-* o *-3 a —o, — . o; — — • E aaco E x p E E 3 oo a o - v — a o — -3- c— o a— — E a s. co in — •o • z a -H i jc co • M• or- fc, a • >i co o c —O v CO >• CO JJOJ O 00 v •-

3 — • •-«— —03 CO — Z E

ORIGINAL(Red)

^. — O — > 33 3 — • > - «— • g — O 03 CO-— Z _g o a — — to— ^E Eao 3 — a co • — ~H x. — a • - 3 a—4 — o Exia cx— —>c e t- in •- — a a o »«. c coco *o eu o *— a • - —* r*- «— eo oc o c a a o E o —o c t— • -H •fc, o ao a c vox)— cu -oeoco«S O • CX —** • £X CO CO C^ ~i J O ^s

• — f_ ^ p j 3 CX ~—~^ fc. *** -«-*— v m •— 4 »—• •-p— E •-—• O «- O CO <0 — Ej= CJ. •— O -™» — . - - _ .» _ r-eoinjj ' - E c u E 3a E > « . Ea; a a E > « . E jjooj — 3 _. aacoa <o — — e — 'rH co aE'-ojeox:x) mo o>--- ojeox: a TJ — oj 03

CO CM O — fc. — -CJJjJ 03 g — .C-M O - O C O E O JJ03X: t~O CX—• H— • o « z 3 « jc -« a. • affl O ^ O —• O Cu 03 c— •- rH «•>> v/ •—» -v >- C v JC •—• v <— in CO -—4 — — — CO —• -H.IJ—. — g CM JStf E

E E -i _>.£ >> ^SJi ao c — 3 a co 3 3 eo c^zZ o—•••* - r H j - M j C O C O f c i C Oco — >> o — — —i C N > > -« « a— -jj j j f c . f c , - E o j i c x : jJcoaEcoco ccojcoax: -HCOJJ c v o a v£•} t CC CJ

ooCTi

-oCd

r- eo — • eo

JJ XI JJ X)3 ca 3 coCO jJ . CO JJZ O M Z O COca —• co -i «co fc. oj eo fc, a xCO JJ JJ CO JJ JJoj x o oj x03 Cd Z 03 U — a.uu

o., Mcu c co oJj fc, JJ fc,OJ CO CO CO

3 g •- C g — CC COT3Q J J C O T 3 Oox e o e o c e o c co oj oo fc. fc, so eufc.fc.oo

CQJJ0003 E -J 00 03CMCOC-M —COC-Hfc. 3 T3 3,3 • O CM CO > O CMCO Cd TJ O CO Cd T3 O

CO CO

flR300596

COJjp-3toCOcs

/«»

rH 3a3'Hf-fl fl^* Q<jH wv^

JjCO

2

c.—aE ,

^o x—4 -MJj fc,CO JJo oj.M*

COsi.•S co1

— 1 1>,JJ OJ3 —ca eo —— — x>a^a-°--oCM E —* acO

CM CX "— "* «t— CO

CO • JJflj — -4— 03co co x:x: jj jjJJ O3 X.x: jj — —a, 03

c- -— *rH JJ -H-»> x: >,3 0)

i >•> — •C N >>1 C jC

-4 CO J->•o ca cu

-I 0)CB eufc. rHJJ X)

CO JJZ 0

03CO fc,CO JJ03 XCC Cd

0JJ fc.CO COco a35 CO

CoJJ OE *- eo

jJ CO CO OJC CO > -H(J) £* r-

g .jj 3 2— CO O OTJ -HCO « JJ COco cu re X)

vOCOs-•— •.in

»«. P— > r-»E oj E E3 • a a— o a a— — t.— O CO —>i E oj > cofc. 3 • -M STCO — O — —C3 E -v CO

O — 0•- fc. •- C.p- x: E - *— *E 0 3 E Ma. — cxa •• oj a •-

p— * CO — *in E c if Ero a so — a• a tt -a— — v CM

C— •-—— -3- 'o tn —— « »* E coCO ^ • *-— -_-eo * o cfc. — co E4 E -H 3

3 TJ CO -4• - — ' 03 CO — t— E CU -Hi -o -J •• «a 03 — x:ao •- E H— a^-y . — %4|. CX * —.— p— * — -— *— • e • vo Eao — a>, a— ••— a

CO fc, — i COE OJ CO O OJ— • a .* •JJ CM a O CMC v O ••* v4 — * O Z — .

eo— .03.

z

CO—4X)03.«4034JJozCT3XJs

—• eoCO COfc, — <JJ X)

CU JJZ 0oj0) fc.co JJCD Cd

§JJ fc.CO COcu a3C CO

COofc. CCO CO CUjj -a '—S1 iCO 3 OO O 00ca 03i. -a -Mfc. C3 O <-•co a. o

CO.2;m

*— • -o —•a • E•* 03 o a— eu v a

..S.J-.-— a •-- oE — co •aro E .* Oao a o —o a— — E— • z ao o in t- a. v a» •- cuO — 'CO — > OJv • E -^ -7— E O a— co3 — aco •0 — O— E fc. in •- —C T5 0) C —co 03 ao E oco o ao a cfc. o • a •- 14 «-O O M^ ^ un.- g >-— • Q •-p« cx •— e3 --—E a E >, • Ea a t. o aa m a c v a0 0 —co o in t- —

O « vO CO E O• o o z 3 •O v/ > -MO\^ -_~ CO . — C v^

>, § E aw Ec — _3 aco 3E — > E sr •-— •~4 >, O *- ——— — •jJ fc, fc, • E 03c co x: — ax:4 ca o — an

to— 03O

cocr>

eouuI

flR300597

TABLE 1-5f,P/

OFF-SITE HELL LOCATIONS AMD

•

Name

Aikins, Ui liner L.Alien, Robert M.

Black, James f., Sr.Black, Orville D.

Fair, Clesson Jr.Fissel, Stephen C. *2Flym, Mary

Gurnet, Emanuel C.Harbaugh, E. FrankHeft in, Lee W. »3Heflin, Verrvon *3Heflin, William F.Heiges Masoncy Inc.Hoffman, Dale C.Hoffman, Kathryn M.Hull, John A.

Kauffman, Earl H.Kennedy, VincentKessler, Mrs. Hazel I.Ketterman, BarbaraKlunk, Michael J.Knox, David P.Kuhn, Paul W.

Laughman, Carole M.Light, Larry K.Lett, John K. *4Lott, John K. *5Lett, John K. , "6

Martin, Paul W. *7Maslowski, Angela A.McOermitt Concrett Inc.Mcllhenny, Hugh C.McMahan, Thomas J. *8Moritz, Charles W.Phi el, Richard «9Platt, Marl in L.Rice, Fred H.Sanders, Francis *10Shealer, Edgar G. *t1Shealer, Frederick M.Shealer, Frederick M. «12Shealer, Gerald F. «13Shealer, Jamas M. *14Shealer, Mrs. S. CatherineSh river, Frank.Shultz. Ruth t.Shupe, Ray M.Smith, Ronald H.Sparks, Gary *1S

Taughinbaugh, George U *16Topper-, Robert H.Tressler, Melvin E.vsughn. William

Waddtll, Donald C. "17Waddtll, Donald H. *18yaddell, Samuel C. *19Wagner, Rufus J.Weaver, Dennis M.Wells, Julius E.Wisotzkey, Joseph

LotNumber

•1

13 A33 A

794

4439 E

46

4454544 S67353630

6539 B64947 A4847

336335051

843112

1126

10 A13

9346391039 D1139 r3439 C40623739 E

3192539 G

44 A45 A449539 A32 A1 A

Street Street PhoneNumber Name Number

(717)

555 Hunterstown 334-7916Oak Lane

544 Hunterstown 334-3534125 Hunterstown 334-3638

1315 Old Harrisburg 334-3282485 Hunterstown 337-3814

1295 Old Harrisburg 334-1064

455 Shealer 334-3291230 A Shealer 334-2214230 S Shealer 334-3747336 Hunterstown 334-2687235 Hunterstown 334-1249335 Shealer 334-3583325 Shealer 334-3545460 Shealer 334-1926

217 Hunterstown 334-1828Hunterstown

211 Hunterstown 334-3675520 Hunterstown 334-832355 Shealer 334-8412

1275 Old Harrisburg 334-27661285 Old Harrisburg 334-9490

Oak Lane 334-8812209 Hunterstown 334-9442

Old HarrisburgOld Harrisburg

646 Hunterstown 334-3560

534 Hunterstown1325 Old Harrisburg 334-153083 Hunterstown 334-2131

1264 Old Harrisburg 334-4219545 Hunterstown 334-3823554 Hunterstown 334-3580

Hunterstown559 Hunterstown 334-7531115 Hunterstown 334-2690181 Shealer476 Hunterstown510 Hunterstown 334-3565

Hunterstown531 Hunterstown 334-6360495 Hunterstown 334-8761345 Shealer 334-3788

HunterstownShealer

190 Hunterstown 334-7419315 Shealer 334-8898485 Hunterstown

416 Shealer 334-1923103 Hunterstown 334-5902566 Hunterstown 334-3581

445 Hunterstown 334-3592

340 Hunterstown 334-3587295 Shealer 334-5291318 Hunterstown 334-6024135 Hunterstown 334-5087455 Hunterstown 334-7272315 Oak Lane 334-4838

Old Harrisbura

ADDRESSESSXSSaSEZSZXSZaSZZZZSSSZXZ

Well Casing WaterDepth Depth Depth(Feet) (Feet) (Feet)

296

21094 20 25

126220220250

150

210

130 20 20

65

275

280

100

40 40 42190

45

652201585

ISSZSZZZCZZa

Number ofWell WaterAnalyses

20

11

041

0

12231331

5113100

01001101022

11

1

20202

21014

111

1

221500

ORIGINAL{Red)

xxxxxzxzzzzzzzxzzxxzzzzzxzzzxxxzzzzxxxxzxzzxxsxzzxxzzxxxxxxxxzzzzzxzzzzx

Source: Metcalf & Eddy (1987) Hn300598

» -8 ~ -i -O v' u s - s *«j !- in •> « —- — B£ | "5 is 3|1 2 c«2 i . « - il- i isw O I w y> > p « O «-Cui T- u— eo*» z — ti £ uu>u m ^) u. Cj « u e m *Uxo <« "3> *"«» • • e .c • C —-1 tn tiu V— £ UIA 3 -Q

* J?- 6? ? 2 •».= -.->•- Q<" g = «! 3 «.:>•-?«• _ «

« 1* -J^3 AI a*p z £ t . i 6 ^ u »<.•«— f z u> a. * v m o v — S5 3 o 5 »• a - *• — c •

— b t « O U O- • - - » 41 —

O

-*U 4f

* °* u H f i f c C V _—u • f£i»3 § ^£n" X 9 z o —--c * ^: «u— wvn (A a

"-aMSs| SR 3 g . "5

'I i» •• li S"l - C ^ - O i t * * 3 t l * * u .X3 — •*< wuu. II CJ -1 "- VJ B X3U**- 6 - » c c ^ _ C "tile * _« -e-BKi _ ~_.KS> — g. 5J-S

C > O 4- Co-

88"x ° «S «. 5 TJb t ( H U I « ^ ' ^ f i S 1 ^a-- fc -a -2 g 1 .1 ss

i= <» » _- v

« S U. •— XK. • W H. 5— 5 tl &Ud> i w O »- C Cx wu» 3f s* 8 e o C — •!• Sit! •!S1« f. "! 1-8 « ?!3il II5. l-xl I I ir I jfl i" lie-J 5 c 5 s i * s **.iJ ! l l« -' 2?'!

• 1"^ "si ll^S ^1 *g « •* s* i^I2-2'S |»i J| |g 1 | | |f |» -5'es.g SjiS 5src 1» s °fc I 12 1, u-av <u•- c~r "J-B " ^ ^ " ' S x a S

8js ~ >.«• 2«-«. 2L*' cL*' »•»• i- u^ O**' fiCfJz*i V Q- » .i «! 9C'-P 9»! *" JJ . k k~ g** g 1 2

r--i„ „ „ „ „ „ „ p ^ ^ " ^

^ S ^ - I M I O « » m ' O ^ « 5 O > ° N^ * - « • * • * • > - V > « B * - ^ P - »5 ^-*§<r4

I . ,v_p w w > J3

"S -« fc: * ^ i L

C S ^ f i w C w ^ K S e o A - «|l . 5-s -|5 s 3 r= I t fe Kfe a«M! A 4, i I|«H fls i

AR300599

II IIII IIH HII HH HHO MH U IIH 1. ItII 3 V IIii 5 — jr jj8 "* iZ HHO Itu e " «ccHO fl UJ UJ

K SSSn n a. a.H nii nu — a uH C *P 4— IIH C C 1- IIit — a o n* 01 a iiH — .a 5T iiH i. e ae iiII O — 1 H

H H

i! ii 'ti |in nn ni! 1/1 nit -Q ilit C H" ft "ii f nn O uH U MH 1

II ? fc !U £ 1M ** <

8 C° !!II V IIH w IIU — IItt — IIII IIII >- IIu tj ll» a !!U M II» f IIMO UJ IISU CJ II

TI (k IINO HN U HH U IIH — HU S • HH — •- < IIH -U II

M C *" »H 5 IIIt — ItMM IIMB. iiH L. UJ IIH b> .<J II• C «— O 1N C 1n y H» C IIH O • IIH CJ •- IIH »< nN * v- CJ IIH C »1— IIH • HII C IIN — » HH| IIH I HIt •* UJ IIII C U IIII 5 ^ Hn u *n nH ItII — NHa HN O U) IIM — »• IN U < <« • M « II 3 3N C tl m S S* C. t- IIII U IIU I-HH >. II »» •»II «l X HH • O n (M (M

\ ° S S *"°H IIII K «H U H

S_l § HX H

» HN HS M

N! 4 l

HH N• HH IIV H *B « B-1H I M t.

1 l UisH •

si*nN

eeUJ

1

1

jfc

K

c.

*

i

I-*

<

Seg•o

$

»

41

i|

iat ac —UJ UJ — *33-3.3a £ u S

xXX

JO

<n o

W4)

g*". 71

^UJ O

° trj •«.• «_

•O*™

"

a e^ ^

o o o

15 I1e «o§^ O

» ^^*

III"aaais<NIM fMfy

Ul

3.

IT

u

«*

•»• • •8

aeUJ3a.

oV

Eogo3

oV

1IS£

CMB*

Ik

aeUJ3

5

1

•

cU

UJ

aeUJ

a. x

^^UJ

r\J

eOJ

oe

"" Te ev o*

*r.S*

asss«-in

eg

fy*3

C*.

iaiiia. u z

xs

<o

inw^

o>»m i^

II"aass«5S*jj

^

u.f5£ * •5

i

1£S•o

«

Jj••

Ei

1ae —a — c/»131

XXX

-r

UJ

(M

av

o e2 S

e eS 2

e e^ S«- K>A

o-ooo* o>

II"

aasSSS"~-

ss

u

HoffMNi, Dale

• •

iae —Q —— (/IiaiXXx

into

o oS ^

ogV 1.

II"

aas«5SS•»»-

S

X

5.

*

*5X

oeu

I

2«-«a

1

i

or oc ae oe ae

IIIII& <L fit. <_L

X X X

0

^

ofMV

IIIIIa £ oe SoS^fS^*in fsj •» to »-

in

••B

UJ

I « « « «

I

ae

o^

•-t>J

in(M

1

2R~

S

c

I

1

i18S-0

3

»

M

X

Kesster, Mrs.

ee a:UJ Wo o£2

xx

0

V

IiSineo•» <O

MM

*

uS

Ketterman,

Bai

M

CO

»—4N*X

X

Cd

u-ii_i

UJJ

r

0)(JM

I

AR300600

L **"? a

i II i i i i i i. 1 1 : : : : : :

• U | | . . . . . .n 5 41 ii • • • • • ;N 5 — ^r It ' ' 'N i/i — • n • • • • ; ;" " ^ " ! ! ! ! ! !!!5 |j S : S : 2 : S : 2 : =22!! H 3 : 3 : 8 : 8 : S : = : 8 8H I I • . . " • • ' .

H a n • • •..•""•" '« C w u II • . . ' ' 'H •£ o 0 " x 'II O» 0. Il X •n u e ae n * * * ' • '8 !! — . . . . . .u n . . . . . .I I I I . . . . . 0 •

U S : : : : : v :» I I . . . . . C O .I I I I . . . . . .8 | 8 : : : : : •• I,. | !! : : : : : 1 :It OH . . . ' • O •HUH ' • • ' • S •H || . . • > • * • •

II • U II . . ' > • W '

H •- H • > X ' • ' U '

j{ a — J! ————————————————H « II ... . . .

S fe S B : : : : : :H K > II > • > • ' •N —•— « II . < . . ' .

3 . 1 S : : : : : :H e . H . > > > > .N U o- UJ II > • ' ' ' '

B g ! ! : : : : : :S4J II * . . t . .

II C II • ' ' ' ' •I I f H . . . . . .

H 5 t- II ' > • > • •H I I . . . . . .

II — UINI ! < < • < . « . « . « • < • < «*•</>« u p ' p . c j . p . p . p . p pN C (i ii5.5.f>.5.>.5.£5

N ^"S'a'iS'SlSlfi'SS

N VV-H • K > i») ••-••• M . r>jN W J « H .^.^j.in. •--.-•

H H . . . . . .

H |> II . ... . . . 1. . M8 J 8 : 3 : - : : * : g : fS 8 •' = : « • -f • «• : s : "

8 8 '..I'^'J-'u'^'lB 8 :*:-",-".*:*:*J J . . . . . . .

ae aeUJ UJ

S3

'7s|

•s&i**•

V9

II

aaN.T*fsirvjmm

•o

3

JB

1N Z

1

aeUl

3

O

V

ev

N.

N

—

1

8

2

e

u

*

w£

OCUJ

3

1as.r\j

C

c

1•jS

i

IS

55

.^•*•u

•

.1si

X

oV

•Sc.oCJ

£"e0inUJu

*ieV

^" d

*em°SA

II

aa<nf «••

3

.•L. «iM

•

ae oeUJ UJ

33

O

V

-.

eV

IIaa^«o

uu

Ik

t.i«A

ae oeUJ UJ

33

II

aaM

-

U.

•o

1Utl S1SS

•

*

U.

S.

(M

*

X*

i•»L.

g

*

•

oe

e7

fgo*.3

eoK> m«O tf

in-

1"

as(VJOJ

sst

Xu<l Z1

•

eeUJ

3

1

a«u

1u.

5b.£

•

i*

1

ser\l

8

5-

•

ccor a; —UJ UJ -PSo — v« 3 3

X

srvj

Out«M

ev

i

in «» o<^7

III"

aa-jeN IM r\i IM

fc

•o§.z z z«&

t.UJJ(U

(Uuh3Ocn

flR30060i

II IIH HIt IIH NH 41 HII U MII u H

H trt — « IIii e KH e nno HII Hii nII HIt IIH — . a nII C U 4^ IIH c e i. HII -p - O O IIM — a ii nn L. e ae nII O -J Hii itn nn nH HII IIH IIH ItII Hn iiH JO HH TJ H

it 1 Ku Q nH i Hn f iiII Q HH U HII IIII « 41 IIIt *•* HII r% O IIIt U IIII V 11

II — IIH — > IIII ItH U IIII U Hno. HH 95 nHE IIHe UJ n• 9 a. HHO II• L. II

II — H^ S£-«!!

-1 g B.I 8Cd -r4 H • • H3 1J II U •- UJ H

CO B u c *• o M< O H * IIHf? il U I"

<•• H C H<•> H 8 . II

M «< HH »« — U IIH C >H> IIII B r- IIII C HII g HM *. UJ IIH e o iiHO M> NII U HH II

H — IIH • H11 U W IIn C in • iiH C U H11 .£ 1— HII U IIH L. IIH >• HS l lH 4X • H

55 aSS 28B * BS 8mB-|rBRS °l BS 8.H H •-

8 B*H HH IIH IIH HH H

8 « B8 I 88 * 2 :H II 0B B"8 B *-s s-t.B B S.8 B **8 8

1

•

1

:a

*

t»—

5

1£

s

:•

1»

1"

UJ

3

.1

;a. h.• (M

• 4»

8

UJ

3

Kl

V

.1

:S

:•

1

I *

A

>

ee aeUJ UJ

33

111w *•»

II

S§i_ u

IIcn w)

O

v

N.

rS

II

. aa+ •3

in

u•o

a

— s1a

O Cr)

UJS

e e(M

33

£

1asJQS

3

•o1— ' t13

»1»

tf

1»

in

1

£<

Iff

5

u-|3

HIIH

NHIIHHIIHII

UJ Ul UJ UJ UJ II

33333!!

xxx !!XXX II

IIIIuHU

H

HIIIIMHHUII

„IIHIIII

IIIIIIIIIIIIIIIIUHH

8HHHN

IHHKNHHHHH

88HNNUHHiiit

lillliH

-S&SSS8"" ^ H

* IO» IIK. .

NM

————— BNHHNHRNM: 11 1

0 8• NU S S S S|

*"

cocrv

OJu

01uuotn

ftR3QQ602

t_ — « •u _ > -O — 41 —X . -. — e "i — —• —..— »> a >. a u . — ._ ti _ • 2 _ ** «• S <•> J!S 4 1 3 Z 4 t ^ p ^ 3 C . — " O 3S - Q v t > a * C - . - QH. S i ' " * ' * 8 •«' — 3^3""". o u o w a. 3 » > T i —5 *^ f>u ~* > 4* w T» • ^ «i «i c "**"" — "t? O e t t s ** 01 C UP -C O ** —--n z € -~ O Z 41*. — — 3 *p x>— QC . * 2 S a e . e J £ 4 > u.— ->. z 2u * ^ S o Q 5 o jc ^o — u ^ c i— £ «^H- £ z £" *"* "" w Si f1^ Q--K 2 ** * wc e w e - tnu ' c ** " -R ? ^ " •? "5 • '**" 3 S."* CN.' oe —"" ufc 2-S § "*"° "^ ^ * ~*s . f|is i $| Sg ^j s^s= 7 5«-S ""s s^ 2*1 -* Ss" - --^ -2 I JixR g., "S 'S S5 SS° « Si* 8* far. -s g* iw =- l?g s Iss fe1. ». • 11 1. U «l " — - * » . . - » _

1 fe *5^J Jl-- .u *• c Q. 3 « oo — Z 4 i i n w i . | j i / i «<V — o J aw c 01 «; i / i e t a e e f o .a. 41—1-5 M . «j • «r — — x 8B.C x«»- J — sj-S .no*p 3 .« » ji x *p _ — t *p 3 i i u j i u e o «j o ». — wa 41 a • 41 -p ti S i. *. *. — c IA « o

*. » • "O O C £ 41 -p. O > > O 4) 5 I- I/I —§3 e C *- via Au j: KI KI (- o — « -O t> o_ tl O « — t l U I . « * P O C — — t-S..m e jc tr m c • c i. — i. -a w */ c »- C i « C cU M!I 5 4- S O C 41-p 4lO O C T I 5 4 l

.^ w ^UO C C6 '^9 U—— — r-Oil —— -Qb-o • a < j * > o « * 5 a > 4 » c c •- m » t»— »t — « o i- cj u u 5 C c *- « S t> 3 •>* U f l u 41 O O v Z 9 4 I C k —« t3 41 • 4) 4) 41 — *• fl. i-5 " -JI

41 0 £ W O - l * p « » V k-r. Mw w w 41 CJ •- in "-

-•Sg o I S "§ | 8 «.- -SS £ C I ? J 5 - o = £ S> «» - ' *.

— O

J U fcjso a?3

S^ • •' 14-1' .-4

:8 -i i § . /I |i -.i |« Sr 5U «« • zea .r . *. M fi • F x g. f «_£.£ 4 - * 9 K I A 9 5 * ' O S . C t t•C - — So v I It 9 " c c 5 3 S'•• X N-> 2 CD. Q • 5 M Q69O O> • » & t> C K «• .^ — ^— . rt —•8S j. •-$ *s - e I - - -• - - *«-_ *«-«5c*-3 xo » • ^ X l_^x u S • 8 o—5 ~ jc ~~.. e .•-&•= o £ — " > « — • — « > — •o v » 3 in "JB >&. w«< — Q— •**.«.— *« _-» iic;-*lll s s « ^.Ir 1? s«< 3§s * 3 • -r« •- u « -8u K o« o e — a> o a—o 41 a. u 2 -a — 6. I/T— —»- .; ^ - »i= t, f u £ — S u ii fviACk loo xS«— c — u w l o o w o u I 9 "S Cuu« C « • — * u I u «• • • c -9 — * x «e -g ••«>y • c « o «• *• 4- b. • — «i»- A z c 41 u *8

— x — o u *•HI.51 "'-^Ic^-al 5•"JJ^ ••OSOMC Tf**^*.* — _ - — — —— -

l5^ •Ir^ssll gf!s!i l« s 1I82r!llx iTliS88 L-i2££M- "*tSoS 5S § o.- -S-'00-* "S«ui» •- O — * * -g 3 -a 5 — — — o 41 ii 8 — £ — c -• «i £ 5*••• • _ T > C A > K b bffk t rsi M t ••—••. —-55 —uu — 4> • — » « o u u o _ x o •»• c o> •; « £.»oo y — ft C C •• •- — «i — . — — — -go • t — — c ti w « w «*-«j eoSxttOB — £•- o o c *> vaoiuCM Ji « L.CE «tvM»u.^u.^.* « » u « . < u •• • .^b.^oi? *^uuv(.51 M b w S e a — . .>«-*-«-u — 5 a t t u E o • «41 • e M wo a? t t» i- ... 4i * 3 r r« o 4> 5 »s <-«^ 41 .^ 40'lij M U C O ^l««*^^a. 4IB VC «.!. Ol ^ •-* C 4j41 c *• w _ £ u u j w 5 « c c " «- -5 .5 4i a- c c £ S —«.— o 3 A «r o * *> — _ 1 *9 o •sft-r. I •• * •

I w w

.. |( .M .u .3 $ 4- • Q .. .. ^o: 5 c | ii .— ~ A M 4 « v > l ^ u j < c •< *» — • cn atwK a j i v w . w u 41 — « o> .. «^|

Jg.- .. » ..... . .. a.

J a S3 I3 ia. «

AR300603

TABLE 3-1

MONITORING WELL ELEVATIONS AND WATER LEVELS

ELEVATION (FT MSL)TOP OF WATER LEVEL (FT MSL)

STATION GROUND CASING 6/28/897/20/89

MW-1A 571.11 573.31 551.70 549.04MW-1B 570.97 573.52 523.70 522.99MW-2A 548.15 550.72 538.75 536.82MW-2B 549.33 552.23 490.11 488.40MW-3A 541.84 543.94 538.28 537.87MW-3B 544.09 545.82 488.60 486.84MW-4A 561.57 563.63 547.97 545.23MW-4B 562.67 564.28 545.85 542.70MW-5A 537.44 539.99 536.40 535.96MW-5B 537.27 539.23 493.24 491.65MW-6A 539.31 541.15 535.71 533.90MW-6B 538.46 540.47 489.27 487.62MW-7A 542.12 544.16 538.72 538.11MW-7B 542.04 543.89 489.03 487.33MW-8A 552.28 554.52 552.89 551.73MW-8B 551.97 553.87 516.15 515.70MW-9A 547.08 548.94 523.76 524.35MW-9B 547.08 549.81 512-86 512.19MW-10A 537.32 539.38 535.29 535.28MW-10B 537.37 537.37 515.83 516.00

uvOcncn

zurHcn

cn

m

cn >3- o -H o\ rHrHfninr->cn.cMoocn CM o\ zCM CM C* —< cn vO ,-H O rH C N C M

01 cn• -4 cn5 co

« O vO Z Z cn CN -H o » o in Z •* Z Z Z en -3- z r-tC i«O D -Q CO ^ *~ vO UC M C M CM OO CM CM -H C -C

pH rH O 00•H >H

CO 3cn O C M O r - . Q O c M o o c n O r H O c N s r e M O N Q Q a c M e n r— u iP-» OO cn O *^* O CM r** ON • vO *H . j_i larH rH .—I C M l - H O O C "O

-H rH CO3 Ccr o

« o z m « z o c n c N r » o > 3 - v o o > r H < N c o z z m c n o z > <ur H O X C M C N C M O r H J3V 4

rH rH CO O «a. cnW 4J LJ<a \-> -P-Icn ooovoOo^m-HOcnoovninoQQOr-icn Q t—i g

r » c n c M O t n i n r H c M i n . c M t - i S J - J r Hr H v O r H r * . C M O r H CO-H

rH pH . • W 3 -GOJ ' Oa) a) -Htn t< i-i

0) ca

. - H O r - i c n e n m o r H G O . CCM <n .H a, co»--• 3c c

rH CM O..H CO

JJ . QJ «

CM oQOooQo\ocNiTiOOOOcMinoQQr~cocn o c a) a) a. aj

CM CM (U U U CO3 h O <U Uco cn jc3 aj-a o, cn u a.

^3 vo in rH *^ cn r^ o^ P^» P-* -^ • oo • rH CM in en o o *H »*H< M « M v O —« rH CM O O > H e J j S

rH rH rH g M1 TJ JJCO .H (!)

JJ ta Dd JJ VO 00 U O

e M i n C M o t n 'Oj^oo-oa)rH <n a oo M*-% 3 V ON J-J >,-O O 4) rH O rH

CM O O O C M O O r — CNOO^OOcNQsJ-OQQOu-iON O g •• C• oSBO»ZcM<rcMr>»o<n9\o\zcNCMZZvOcncM Z o c n r » c n c o

CO C O r H r H l - * O Cn O vO O rH O g c O

CM 4-t . P-N ti (J) oJ 00 -O l-i C•< T4 £ 0)EH rH 0) JJ <U- rH CJ 0) ,—i•H a) g a.--> S a « s

0000000060000000000000006080(10004000.0)0000 00 M UcOH . . . . . . . . . . . . . . . . . . . _" <u a) o.

I CM

2

adCdHu

-000000000000000000000000000000600000000600 OO00

cnu*HcCO00

(U V14 O3 CJJ r-1cn•H H-3O U

a e e s e s e e e e E2 e a 6 6 e s e e s s s

g „. s <u g „3 € an 3 £-H E g 3 -H a) >> -H 3r H 3 3 ' r 4 J J U O l C W r H i a . H V

TOD0£05

jj jj cnQ) co O cn (UJJ U Q) O j-iX'H ,H JJ COr-l T3 -H CO <JCO C O U <HC .n o .H -or cn G >n

JJ 00 0) -Ha) —i r14 "oo S O ^<4 S cd Z ZH= cor :

CO -O U

IC/3Wstf•4U

a!51§ J zH aa« a55o

So>•flQsi9Sca

^u>«2OMggOrHcnCdOWtJ2£2

j*

\

N

O>JUMCEIQd

8ocncocn

00icncn

r«.1cnCO

vO1cncn

Oincnen

inWcn

<Tencn

en1cncn

CM1cncn

i-Htcncn

-Q«scnM

-CO***aBCd<q<Cu

S-*

<Ur1< <

Q Q Q Q a -v. ~-Z Z Z Z Z 2 2

vO Q CO Q O Q CCM Z CM Z rH Z 2

<• a r* Q Q Q CCM Z Z Z Z Z

O O rH a Q Q 0Z Z rH Z Z Z C>

a a CM o o o cZ Z rH Z Z Z 2

CM o o o Q a. cPH Z CM Z Z Z S

a a .0 a a o cZ Z rH Z Z Z 2

Q Q CM O Q Q CZ Z rH Z Z Z 7

§«tf O rH VO CM Cft CM rH <• 2

4o

a o o o a o cZ Z CM Z Z Z 2

.•S"0

@<rj Q £J /.J £

CM Z Z S 2

oo eo oo oo oo 80 e

80 00 00 00 80 £4 C3 3 3 3 3 S :

<U•H G rHu S) <u cn xo e .e a. x-H 0) U rH 0)6J3 <U -ri j2 cn

JJ O JJ rH (U 0)«) <U Vi CO X JJ "OrH <U O O r- 1 j3 eO -H•H C V- rH O 4J — 4 (JJ J Q J O V O ^ > ^ ) C O « HC O C C r H ^ H U .H | J3 U< - * O < U > > . C c a S C M J J cno u 3 js o >j cu s^ : m> < U T - H J J - H J J cntna^ cut

O O ^ V 4 ( U "H iJ < c-i z e-i EH J ca _j cCJ CJ U

I

: •cn Vju (U• H a.

-- S• H tnrH S

coJ C 14: o oo

•H OJJ t4cO UJJ -H

> ~JJ ! G cnco a)

3 JJ

u<U -H\ > -a

4 O G.A *HCO~ *

cn ao cnQ) 4 JJ

J pH "~^ -H: a. so se 3 -HCO 2 rHcn cn•0 -n Ca) G cn o

cn cO co *H} aj .a jj; £% •" 03jj p- jj jj

S **1 *Hc a. oo jj•H a,.H e^~> U co

1 JJ 3 3: d G i cr0) O >•>en -H (4 <D5) -H T3 >W rH O •O.-H CO -O >->

3 g (0 <U5 JJ C J->

O U O • (U (UCO. U. rH Ea, -a <u a. 03a, a) jj s ij

j a) jj h .H cn a.S 3 U 0 UcsS Cu o Q) cn

*O C3* <U 03 f-C 'H\D j UJ i j^ iM C Jcn o cn c

! rH OT rH M Og 3 N tJ <4Hu co cn -H u

O V4 Q) fi£ JJ *OG 00 Vi U 0)0 X 0) M

J cn rH ••» .n JJ X5 T3 >H /TN (U rHe .M .n co -o co

3 O.CO CO %4 pt ON JJ COa. oj s-p H oe a. c jjo c « oo 01 o t*» cn c

5 -n co/-. co .-4 U 3 cnlO _3 Vt ,H 0) 03<! CJ 60* rl J3 U 3~ EH -H -O S OJSO -- rH H) JJ 4)3 rH W U Q) -H

JJ >H 4) 0) g Oicn S O. Q 9 gt-4 cn tn *o co CQa> jj <u a.-0 ij (4 jj cnC co co o cn v3 u cu <u a» uO -H rH JJ COO. T3 W rH OJ U§C O O U -H

•H U >H -OO S Tl G2 co tn G -Hu oo (4 a, .HQ) .M 80 rH 260*-- . o as <j»-i OO-H g Q -~»(0 E -H co Z Z

H EH 2 .id OT 2 2

CO -Q OA"IO(*CW300606

TABLE 4-3

STRESSED VEGETATION AREA SOIL SAMPLESSUMMARY OF INORGANIC ANALYTICAL RESULTS

SAMPLE DESIGNATION(cPARAMETERva' UNITS*'0'' SV-1 SV-2 SV-3 SV-4 SV-5

Moisture % 43.3 18.9 20.2 31.2 22.2

TCL InorganicsAluminum mg/kg 16800 18100 14300 12200 16200Antimony mg/kg 92 ND (d' ND 73 NDArsenic mg/kg ND 2 8 3 1Barium mg/kg 1100 140 290 1530 80Beryllium mg/kg ND 1.1 2.3 ND NDCalcium mg/kg 1180 2790 3140 870 2000Chromium mg/kg 8590 120 38 10000 30Cobalt mg/kg ND 14 23 ND NDCopper mg/kg 2820 889 122 7180 14Iron mg/kg 12500 20600 42600 9220 19700Lead mg/kg 54300 1820 120 24400 15Magnesium mg/kg 1360 3240 2640 890 2160Manganese mg/kg 155 766 3420 131 179Mercury mg/kg 1.5 0.05 ND 1.5 NDNickel mg/kg 11 12 15 6 8Potassium mg/kg 723 1410 1180 465 1210Sodium mg/kg 300 74 ND 334 64Vanadium mg/kg 37 48 74 29 46Zinc mg/kg 547 312 207 1030 42

Cyanide mg/kg 2.0 ND 0.16 1.7 ND

a. Target Analyte List (TAL) compounds not listed were not present inthese samples above quantitation limits.

b. "mg/kg" indicates milligrams per kilogram or parts per million(ppm); results reported on dry-weight basis.

c. Samples collected December 7, 1988 by Rizzo Associates.d. "ND" indicates parameter was not detected above quantitation limits.

AR3Q0607

TABLE 4-4

STRESSED VEGETATION AREA SOIL SAMPLESSUMMARY OF ORGANIC ANALYTICAL RESULTS

, SAMPLE DESIGNATIQN(c)_______PARAMETER^a> " UNITS^b' SV-JL SV-2 SV-3 SV-4 SV-5

TCL VolatilesAcetone ug/kg 53 25 13 29 -NO (d)Toluene ug/kg ND ND ND 9 NDMethylene Chloride ug/kg ND 33 25 36 121,1-Dichloroethane ug/kg 11 ND ND 33 ND1,1,1-Trichloroethane ug/kg 194 ND ND 509 NDTrans-l,2-Dichloroethene ug/kg ND ND ND 48 NDTrichloroethene ug/kg 37 ND ND 93 NDTetrachloroethene ug/kg 129 ND ND 16 ND

TCL Pesticides - .ODD ' ug/kg 229 ND ND ND NDDOT ug/kg 670 ND ND ND ND

a. Target Compound List (TCL) compounds not listed were not present in thesesamples above quantitation limits.

b. "ug/kg" indicates raicrograms per kilogram or parts per billion (ppb); resultsreported on dry-weight basis.

c. Samples collected December 7, 1988 by Rizzo Associates.d. "ND" indicates parameter was not detected above quantitation limits.

ftR300608

TABLE 4-5

POST-EXCAVATION SOIL SAMPLES - DRUM BURIAL AREA 1CUE' KM.GAIIIK:

27600 21.'9 (JOfiig/kj!; 112 133 IS 9 18S

Beryllium nig/kg; 2:.. 1.1. L ,.57 1 ,.83 ]. ,,97Cti Lc: i uuii "ig/k.;: 3 660 .2960 ,34 (»0 2.360Chromium "ig/k,J!: :)3,5 .25,4 .31,7 30 .,8Co.Mill: "ig/kg; 22.3 .31,.4 2.L8 27 ,,1Copper . cniS/kg 8,7 7 ,.2: 7,,:j 8.,6Iroiri rri|i;/k|ij 42800 35300 45200 50800Lead mg/kg 9.54 9.78 13.2 15.4Hagne !i iuni *"!;;/kg 1.5600 1.1.500 17000 17300

89441:1 „ 17150

a.. Target (i.[],!i,ly(::i-! Lint (TAL) compound si not ].i<ti::ed wure ::iol: priEiiiiiini:: in i:;he!i!>::i amp l.e ii ii bovi-i quii.nl:: i. t.n l: i on I. i.::n:i i:::s; „

b.. '"mg/kg"' indicat:'!!ii rn:i,l.l.igramiii per ki.lograiiiisi or p.ii:i::ii ;n!!i: m:i.l.l.ion (ppm);reported on dry-wi'iight biiijiiiii..

c.. ijii.iiipli-!!i oollectJEid Apri.l. 13,, 198>9 by il.:i;!;:i:o Aiiiiiiociirces.,d.. "Mi1" indie ai: at:!! p 111: ii.me t; ss r iraiii not ;p r i! aent in i::he sin, nip I..! abov'ii quantii. i:ai;:i.on

a.m a a a a o o a a a a a QJzzzzoozzzzz • <uc *H f**" tn ^ "orH rH r- LJ r-4 U «•H a. u o 01

' 3 1=2 *•£rH tn cn as

co o aaaooaaooo o _c .H s 'so,• OZZZOOZZZZZ -H 60 -H .4f f—> f 3 4-j *H tn fcj -1 CJ

CS f"^ O O CO OJ l-i Ocs cs oo j_i 2 a) c 1-,rH .H I LJ 0) O 0)

: U X U rH -H >

rH Q aaooaaaaao .3-0 u E <-•ZZZOOOZZZZO 3 c g c o LJ o

•"" C3 3 C3 < CF C« _f"i Cfl • » f

014 rH <• a -4 a j C I U 3 a ' ~ tCO > "O O O Cd l4H

O tU 3 r-4 3 O

33 . . _O f-| rH CS ITl O

CO

-O lj t-i (Ueg .H 0) O C•U '-» V4 O .—i <U <Uc .H o u _e e .e

<uh3

I«8 i-H O O <U

(U JJ -C rH -H J2 <UC O U JS Q JJ O

c < s j 2 c . j a < U r H i i ,H oO JJ iJ <U rH C >i~4 01 jC 03J J 3 0 ) 3 > » < U . C •• C U l-i

O UJ3 QCU01 CU Ol 01

r-4 Q* 't4-l O *H < JE 01 <4-l E

_ c3 LJ 0) -H cflCdU "^ ZZZZZZ^ZZZZ '3 Jj"w ^>%OrH|O 0)01 S C ^ l

Cd UJ U 01 01 -H CLi

-^ „. r-4 C N Q Q Q Q Q C O Q Q Q a C^Q SO) -HiCOCO • r-iZZZZZ'*ZZZZ 'HO, 03 j_) o_l ,—l

oo ON Q. cn u c^ aJ x-x c8 cd 0)

C -0-. 3 r-l-s Q) G CO CO Q" Cl«"O - - 01 O la JS E• (U -H 60 U 0) «coi o a a a a a a c o Q Q Q a ^ r-> > a.

C U H O )<U « r-4 T>QJ a tn a. a

<\ • cn Z Z Z Z Z cs Z • Z Z: O J o i 4J CN coCS U .H CS O

cu a, o <u J3 «JJ 01 h JJ <-4ui 1-4 01 3cni m oooaoaocnocnooo .HO <: eo a n-i

< « CNZZZZZCNZvOCNZ rH .H .HO^ CS u l S ^ J J V j2 " ^ o u t a e q oZ 9 c to -H o uj uOcs o atf «i oH K tn rH C 0) 03H O T - O - H > , 3 V i 4 H•< ' C -ii -Q O Q,> --» 3 J3 co-«3 .a o IH o> 01<u oo ox

6000600000000060600000 ECU O.G C -Q- .- »~~~>.~ . «. »~-»,--.~>. O01 .H 01T3

3 3 3 3 3 3 3 3 3 3 3 ^-.03 rocs 3JJJ U r-i u a)U 00 01 )-. >

: H O rH 0) <U0} v )-i .H 60 JJ rHC U . l-i G <V OJ0) JJ -H Q..H E0)43 cn £ <; ,—i coooj c jj -H a. v. a

o a) x: o a) <u 03 a.

0) CN 01 JJ U I O J V i U ( 4 H - OC l N * - * O J - H C S O O S o i ( U « CP -H . c . _; . ; . .. .

0) rH

-O u JJ 01 T3Co) u tn q3 U 0) O OJ SO -H rH JJ JJCX 13 rH 0) COEC O l-i U OO -H U OJ

^ pj C«U S OtW 00 W S € S C3 SHs ^ s c n c o i s co

1

(XvO Q Q Q Q Q Q 01cnzzzzzz . ojcn <u -a

JJ rH•r-4 O. ljE E O-H CO '-W

O OO cn in CS Q CS O60 -H r•^ in ON vo • z vo *H >HrH OO JJ OJ 01 U

03 3 la OJJ I OJ•H \ JJ Q)JJ la U .rHc T3 co a.

COI en -J- >T OO O O O en CO lagQl • 00 cs •* Z Z Z rH 3 G c o c acsl vO o- O -C 01

rH UQJ T3 3> OJ O OO JJ 3 rHJ3 S-, JJ -azo ON Q Q a a <r Q a cooo u . z z z z cn z z a.

CS vO 01 0) cn<U la , la 01—t -H U JJ .O. 01 <-H O .HE i-' MH ECO rH rt* •—'co cot cr\ >o a a Q r» a a 013

C_)| « CSZZZrHZZ 01 _..csl cn oj oj = GCS 01 ta «> O

OJ 01 01 .HJ J3 ••» OJOa

J3 CU 14OIO 03 CS - Q Q vj- cn CCU E<UCQ • "-.-rHCSZZ-HCS' -HO, 01csl \O >—» 01 y _

JJ CO coC G ' J3 V- 301 >H la ,£5OJ rH 60 O "'c o i c n eo>3-srQQvoo ia,Hcat « -<rcscszz-^cs O.-H V4-o ocsl o jo o u .aJJ b -H coO U _GGO) EH (U

O. • rHOJ ol p,O| >n m O Q Q m O O la cn <u • s<\ • cszzz-Hza" ojjj jjes acsl OO 3 la 03 I cn

<fl -H cs-o a. u vOJ O OJ J3jj U tn M jj

— 01 O w 3CO) O O O O O e n O O "-( <C 00<! • Z Z Z Z • Z Z rH tn

_ _, esl vo oo SW 3 *H JJ o>_ 3 O (a M G G9B a c oo .H o <uOS o OS cnM JS 01 rH C (UH OT 13 -H X 5 U^ X-N C Ji J3 O O.^ J3 O W ON 01 JJU <*x a. a) oo o

CO 60606060606060 E C U O N G CH Ji ! _S! Jd Jl! -S! Ji O " O

^ • . .->»~~.~<~-- U01 -H 0160606060606060 E "J-> <D3 3 3 3 3 3 3 /-N« tnoj 3

J la rH JJU 60 01 laH O rH OJ>—• la -H 00 JJ

U |a C 01JJ -H O.-H £

OJ 01 g , rH COOJ G •* O. laC 03 J 01 13 E 03O OJ .G 0) 0) <Q CU

OJla rH3 OJJ ><n•H JO OS H

J J O J C X O I O J E - IG (8 -C OJ rH I

G T3 JJ(0 -H (Ujj /-» (a O 9)§rH O U C

03 rH Q OJOa JJ -C rH J3I O CJ JS JJ

(U CS JJ U OJG I <U -H OO rH C

-O JJ JJ C X<M -GJJ 3 OJ 0) Si • OOJ CQ £ rH JJ rH .HU I I X OJ •• la<! cs sf X S -H EH

TJ jj JJ olC 03 O 013 O 4) O <UO -H rH JJ JJa, "o rH <aEC Oh Uo .H u a) -Hu u-i -ar 01 oj • c

60 • OJ Vi CU -HrH rHa. oj a.sOJ -Si 01

la 60 tO E E E OCO 3 c3 «3 a. 03 ZEH S -O CO G cn Z

CO -O flR3006li

w coCd

» O

.co

O Q Q c n ^ O Q Q O QZ Z • r» Z Z Z Z

co r-

CO O O O O O C S O Q• cscnvt-ozmzz

CS rH rH rH |-»CS rH

coi <r ooooooooa • zzoozzzzCn| ON rH O

rH I*- CO

Ol O a O O O O O a OU • ZZZOZZZZcn rH m

COI vO O O O O O O O OU • ZZZOZZZZml rH -3-

Ol <n O O O O O O O Oca • • z z z o z z z-z

rH o O O r ^ O O O O* ^*zz *zzzzON rH OO

m*

sr ONCSZZZZZZ

COI vO -a-QOOr^-Qr-cscnl oo

-§

6060606060606060J4^^J£^^£^J£"»«. " » ~»» " ^ •->. " . -» -••.60606060606060603 3 3 3 3 3 3 3

<1J ^ hC OCU JJ -H

0)X! cn £

OJ <0>a rH3 OJJ >ai•H _3

OJOJ.GO

: 13 JJ b•H a) O

*-» h O »H OJrH O h JS CCO rH O U OJ

OJ JJ 43 rH .H _CG O U -G Q JJoj oj jj u i oja N •— • a> -H cs oo c c u * u

O J G Q J c n O J f H r H OC 03 .Q OJ rH I I rHOJJ-H G Xes oijSJ J 3 X O J . C « > C UOJCajSrHUrH CO'HO I JJ X <U » la la

CO -O

0) la 0) -H

SR300612

ON

4

UJ3

0> O C 3 N Q Q Q O N O Q Q rH (U' r H C T v Z Z Z - Z Z Z 01 0)

CO rH ON • OJ T3

CO

O Os: H

G 13 G JJeg .H « ojJJ <-~> V4 J3 O 01§rH O JJ Vl OJ

03 rH (U O rHCU OJ JJ J3 O rH >HI C O O la -G JJ

OJ CS OJ JJ O U caG I N OJ rH -H rHO rH C G -C rl O

O J C X O J V U O J U H >O U J J O J r H C X Q C S EJJ 3 0) 3 X CU -C I - cuU I I O JJ X 0) « "

OH

a

lacn a. la oJJ E O CJH•H 03 <4HE cn 01rH _G G Q -H

a r- \ O v O O O O O O O v O < 00 .H r S •O « c n c n z Z Z Z « « r H -^, G-H .HOI^X VQ LO ^O ^^ O ^ 01^4 j , _j

rH .H 3 la O Cl"JJ I OJ C =rfCO X JJ OJ O UJj la U r-4 -H•H "O cO CU JJ CU

COI 00 v O r H Q Q O O O c n c J N < u WE 03 JQ • cnvOZZZZZ'rH ^ CC eflco JJCJ•tfl r» r- Z c O O - G i n - H

rH • 3 U 4J IaO* 13 3 C OJ

tU O O co >OJ JJ 3 rH 3 O

Z O C N ooooooooo < oo co oo u • ONOZZZZZZZ -^- J D C U J J ^ oc s > * e n Z e o c u c n c n . r HCS rH la la en

01 -H la U UHZ 0) 01 '-JH O -H OO rH JJ 4H S

O. rH OJ .-I UCOCO ON O O c n Q O Q Q Q O < E3 J3S rHO

CJ • (.SOOrHZZZZZ* ~^» c O t n iJCO JJ^ • r H c s r - O N Z c n c u r G u

CS la " o COOJ ol tn »H IIHJ3 ••• OJ -H jjjj /~« rH efl eo

o vo aooooooaa < ecu EOJ - H X ,COCO •' ZZZZOOZZZ ^ - H C U o)JJ JJJ3•*'* rHO Z -~X CQ U C

- P** JJ 03 03 O<T C G -Q Va 3 03

» QJ O CO co CT* <f•O 01 .H la J3—' 0) rH SO U OJ ~Oco m oooooooao < larH > c •

00 • ZZZOOOZZZ ~-^ CU-H Vj -o O 03 la< - e s csmo z J 3 O U J 3 Dcnino jj C u ' H c o c o j jrH O U J3 33 0)>S" ' c OJ • H cu <r E

O, . rH • COOJ 01 04 01 la

O I O N m Q Q a O Q c s Q Q < l a o i O J . E O J c o<! • CNZZZZZ'ZZ ~-- OJJJ JJ CS cOrHO,

ON vo Z 3 la 03 I cn CurH CO -H CS E 01

T3 CVi u OJ CO -H'—» <U O OJ J3 CO J3OJ JJ U en la u jj—' 01 O 01 3 la

COI en sj-OOOOOOOO < -H <60 COUCSZZZZZZZZ -^ rHOl . H . H U H OZ £ O Cn IH

rH JJ CO -4 JJ T3O U N C G G 13C 60 -HO OJ CO 0)

O Qd en N01 rH c oj m x-O .H X 3 la rH§j>^ ^3 O C^ 4«4 Pfl

-G O C3 O la ON 01 JJ COa. <u oo o la

606060606060606060 60 E CU ONG G O JJ-»»•-". ~«. - -~. -~. -~»~ . ~~. ^ y oj -H 01 u c606060606060606060 60 E "JJ e Q c O3 3 3 3 3 3 3 3 3 3 ^-NCQ enco 3 < J H t n

J k< rH JJ COU 60 01 la CO 3

i - H O rH OJ•—'la .H 60 JJ X OJ

U la C CU -Q rHJJ .H O..H E Cu

OJ C -n CU U OJ COG 03 i-4 ol 13 E eO JJ 01O OJ OJ -C OJ QJ 03 Q. 03

01 > atC 03 u cn OJ OJ3 U OJ O OJ rH jjO *H rH JJ JJ OJ COcu -a rH to uEC O la U Q .HO -H O OJ -H U 13O MH 13 G

S CO OJ • C -HJJ 00 • OJ la 0) -H CU(U Jt 01 rH rH rH rQO-— -H cu oi o.r a. <0 3 3 C O C Q C Q C O Z C O ZHr jacocw: cor

•tfR 3D 0 61 3"

TABLE 4-10

POST-EXCAVATION SOIL SAMPLES - DRUM BURIAL AREA 2•' SUMMARY OF INORGANIC ANALYTICAL RESULTS

SAMPLE DESIGNATION^PARAMETERS' UNITSVU/ 1-COMP 2-COMP

Moisture % 18.9 22.5

TCL InorganicsAluminum mg/kg 30000 39100Barium mg/kg 173 297Beryllium mg/kg 1.97 ._ 2.06Calcium mg/kg 2430 4890Chromium mg/kg 28.4 40.0Cobalt mg/kg 16.0 24.5Copper mg/kg 13.6 11.6Iron mg/kg 22900 28800Lead mg/kg 15.8 1.68Magnesium mg/kg 8710 15400Manganese mg/kg 533 ' 1040NickeL mg/kg 41.9 41.3Potassium mg/kg 2610 6230Sodium mg/kg 222 555Vanadium mg/kg 41.9 58.1Zinc mg/kg 97.4 111

Target Analyte List (TAL) compounds not listed were not present inthese samples above quantitation limits."mg/kg" inidcates milligrams per kilogram or parts per million(ppm); results reported on a dry-weight basis.Samples collected May 23, 1989 by Rizzo Associates.

AR3006I1*

lain O O Q r H Q Q O. CN en z en z Zcs '-i cs OJ

I I CS G rHcs| o cu•H C EJJ -H CO03 tnJJ 01

Q^O O^-QOQQ .H Ia3ca • vovozzzz jj QJOcsCS CO U rH

3 «J COO- la JS

CO 01c o c n o r-» a a Q a oj jsO3 « CNCSZZZZ > U la<M m -H o o

cs A O CJHe8 3jj :tn co

OO r H O O O O O OJ JJ< « incsZZZZ rH 01cs rH en a k

E -H .Hoj UH01 la

Zl OJ OJO COI rH r H O O O O O OJ -G-U

,. in ON Z SS Z Z cn JJOCSl rH rH OJ 03

=* I ~ ^

iU JS

CO

•#'a

C rH CJ 01Oil 'H « Oi JJSON OOCSQ«*O /-» g -O .H« i n O r H Z « z jj j3«oia E

00 encs l^. C C X c a . H . HrH QJ CU JS rH

01 ^ J3 HQJ (0 C

'-> la C IH OXJ CU O 60 • -H^ -H cn jj

._. cn O O O O O O JJ r H l a l egca| • z z z z z z o rH o cs jjON C -H ta -HrH XJ QJ JJoj b ala fc . 3 <9

OJ OJ ca 60 3col vO C N O O O O O 3 cu cu -H crca • -H z z z z z jj _u13 tn 03 01OJ JJ .H G >JJ IH O O Oca CQ O A• H CU 01 C COqi oo oocsoavo I-H 013< . srovooszoo i j < c o T 3ON ON m jj o js ojrH O O tn JJC la M Uoj N a ojca jj -H o JJcoi cs o o a Q Q Q 13 -H as -H QJ

< • CMvOZZZZ C rH JJ T3rH r. sf 3 X eoCM O la 3 JJ JJ

CU QJ cn OE aoN cO ao 60u ca ON a ca

E r-1 .H CfJ03 rH 3

COH

606060606060 J U •>^Jd^^,^^ U oo cn E h»>* *•»•>. . ••• - -». H o cs 3 oj606060606060 ^ M ca JJ3 3 3 3 3 3 OX OJ

JJ -H 03 O • £1 OJ ca E s; JJ OJ 3OJ G "-< rH laC 3 r4 ui 13 la O, 03O J3 OJ OJ OJ E CU

OJ(4

JJCO

ceg QJJJ O 0)c u c(U o OJCU rH .GI -C JJ

OJ CS U 0)C I -HOO rH b b

(U C X 0) H OG CO J= Q) I rHO JJ JJ G CN JS

3 O JJ 3 0) Q» « O" — —4) 0001 I X «•\< es •* X -H

3 "

•o

Ico o oj cn oiU (U ta 0)13 rH O. JJ•H rH U OJ CQC O E OJ Uo

C T3« S CO la G

JJ 01 00 0) OJ O -HOJ JJ Jt\ rH rH (+4OO-H -^ cu a. rU E 00 S E= OSJ -H 3 CO 03 Q ZH rH r co ca £ r

38300615

TABLE 4-12

SURFACE WATER SAMPLESSUMMARY OF ANALYTICAL RESULTS

_____SAMPLE DESIGNATION^°^PARAMETERva; UNITS(b? SW-1 SW-2 SW-3 SW-3D

TCL InorganicsAluminum mg/1 1 0.8 1.5 1.4Calcium mg/1 25.7 17.7 13.2 13.0Iron mg/1 0.52 0.47 0.79 0.75Lead mg/1 0.010 ND (d) ND NDMagnesium mg/1 9.24 7.45 5.52 5.41Manganese mg/1 0.02 0.12 0.11 0.10Potassium mg/1 5.1 2.6 3.8 3.6Sodium mg/1 14.4 7.8 8.1 7.6Zinc mg/1 0.04 0.08 ND ND

TCL VolatileaMethylene Chloride ug/1 ND ND 7 81,1-Dichloroethane ug/1 ND ND 11 111,1,1-Trichloroethane ug/1 8 ND 37 38Trans-l,2-Dichloroethene ug/1 18 ND 8 8Trichloroethene ug/1 24 ND ND ND

a. Target Compound List (TCL) compounds not listed were not present in thesesamples above quantitation limits.

b. "mg/1" indicates milligrams per liter or parts per million (ppm); and "ug/1"indicates micrograms per liter or parts per billion (ppb).

c. Samples collected January 16, 1989 by Rizzo Associates.d. "ND" indicates parameter was not present in the sample above quantitation

limits. • r

AR3006I6

ORIGINAL(Red)

TABLE 4-13

SEDIMENT SAMPLES"SUMMARY OF INORGANIC ANALYTICAL RESULTS

SAMPLE DESIGNATION(c)PARAMETERva' UNITS1'0' SD-1 SD-2 SD-3 SD-3D

Moisture % 39.2 22.3 22.1 28.9

TCL InorganicsAluminum mg/kg 12900 9100 15800 18600 21300 17300Arsenic mg/kg 3 14 6 4 3 6Barium mg/kg 100 100 80 60 110 110Beryllium mg/kg 1.0 1.3 ND U) ND 0.9 1.1Calcium mg/kg 2600 2550 2700 2550 1810 2610Chromium mg/kg 110 49 31 37 28 50Cobalt mg/kg 10 30 9 8 ND 20Copper mg/kg 160 55 12 20 14 52Iron mg/kg 13600 53000 24600 25300 22100 43400Lead mg/kg 704 96.4 19.6 23.9 23.7 194Magnesium mg/kg 2930 3290 4030 4430 2900 5270Manganese mg/kg 556 1900 582 323 375 1100Mercury mg/kg 0.07 ND ND ND ND NDNickel mg/kg 12 19 13 14 11 18Potassium mg/kg 691 566 1050 900 1100 947Sodium mg/kg ND 140 ND ND 110 NDVanadium mg/kg 31 60 40 58 46 66Zinc mg/kg 219 138 53 48 50 261

Cyanide mg/kg 0.10 0.22 ND ND ND ND

a. Target Analyte List (TAL) compounds .not listed were not present in thesesamples above quantitation limits*

b. "mg/kg" indicates milligrams per kilogram or parts per million (ppm).c. Samples collected December 14, 1988 and January 16, 1989 by Rizzo Associates.d. "ND" indicates parameter was not detected above quantitation limits.

AR3006I7

ORIGINAL(/ted)

TABLE 4-14

SEDIMENT SAMPLESSUMMARY OF ORGANIC ANALYTICAL RESULTS

SAMPLE DESIGNATION^0)PARAMETERva' UNITS'-0' SD-1 SD-2 SD-3 SD-3D SD-4 SD-5

TCL VolatilesAcetone ug/kg 33 NDU; 26 42 32 . 46Methylene Chloride ug/kg 13 ND 10 10 ND 18Trans-l,2-Dichloroethene ug/kg 10 ND ND ND ND 50Trichloroethene ug/kg 28 ND ND ND ND 81

TCL SemivolatilesButyl Benzyl Phthalate mg/kg ND ND 3.30 0.84 ND NDDi-n-OctyL Phthalate mg/kg ND ND 2.02 0.52 ND . ND

a. Target Compound List (TCL) compounds not listed were not present in thesesamples above quantitation limits.

b. "mg/kg" indicates milligrams per kilogram or parts per million (ppm); and"ug/kg" indicates micrograms per kilogram or parts per billion (ppb); resultsreported on dry-weight basis.

c. Samples collected December 14, 1988 and January 16, 1989 by Rizzo Associates.d. "ND" indicates parameter was not present in the sample above quantitation

limits.

8R3006I8

a

g§2Hr55*. _uujfjjj3s*•?SBOM

*0atsss9301

-o*~szQrHH

rHCOCdOCiJQ.J2j*3CO

^

s

/•

N

<orH|

i<ON1|"5

<CO1

3

<f».13

^vO1|jp

<inl3ES

<ssr"J£

<en135

•aj<N|

i<rH1

5c•NOCO(WCT*.M^5

"sCO•*•OiCdH.£2002

az

CO•vO

f»».»o

cs.o

QZ

az

<•o

g^13

OZ

ao.O

•QtQ

a• H

<

O r-.Z •m

CN

CN CO. .

CD 0CN

O *^z •CSrH

es ON. .O en

rH

O csz *CS

rH Sj". .

g~Ji rHin

CS rH• CNO •

00

°ip.in

Q f.2 •es

in

cs o• oor*»

• 60 6CB 3

.H•H UIJ rH

ca u

oz

oz

o25

Qj23

oz

oz

oz

I

oz

•a-i— «o

- ,ajg

• Hg0la

6

CS O0 Z•

o

cs OO vO. .O rH

Q P*»Z -H

o

a ooZ e*?.O

O Oz z

o az z

a <••0

z z

a o2 2

O ooZ cnO

~ . 60 6CS E

(4OJcu ca. oCJ M

ON O* rHO •rH O

m ON. ocn «

CS 0

in <fcs o. .OO O

oo cs^ CD• •

co o

ON Or- Z•

(*"*

vO -H• 0

^^ *

~4 O

o vr* C3. .en O

°.S

rH O

0 Q• Zcn^

<r esf-. Ocn o

- . ~60 60S E

E oj3 01• H <U01 COJ S)C 6060 C

M, £

a voz •

Q -*Z •

*3-

O cnZ •

a enZ •

rH

O OOz •rH

a •-oz •rH

Q esJ25 *i— (

o O rHO.oO es2 •

•4

O ooZ *°

^ *,00 Crt

S S

g3

14 013 olu a)Wl JJ

x (2

•-H4

(•««•

—— .

vO•

co<— t

r— t•

rH

^

0•O1— t

P-.•

enrH

cs. .ocs

ON.

P«.

*.

»H

cn•

ON

.— t•S

,5$S

.H^

tno•o

en3•O

Oo•o

cn3•o

oz

>*0•o

\o3•0

^•0

o2

es0o

^60g

UeN

QO>H.UCOuuGcfl3CT

OJ

0JOCO01OJrHa.En)01

CU01

JSJJ .01

G JJ•H • .H

^ EU £ "4C O. r-loj a.01 v^ G<u ola C -HCU O JJ

•H COJJ rH JJ0 rH . .HC .H 01 JJ

E oj cOJ JJ COlJ la CO 30) OJ >H o-3 (04 U

O 0)TJ CO 01 >OJ JJ 01 O03 cO CO>H a. orH N "O

la N 0)U O >H JJO Ocl OG la 0)

OJ X JJ01 JJ jQ ^13 -H 13G rH ON3 00 uO la ON OCU OJ rH CE cuO •• tnu cn in co

E CN 3/~% eo 1J la en la< 60CS OJH .H JJ«-» rH X OJ

r-l CO £

01 E la• H "O CO.J QJ QJ

0) JJOJ JJ U 01JJ tfl OJ OJX U i-H JJ,-H -O rH CO<8 -H O 0C C O 'H

• ' 01 GJJ ol S <U -H0} JJ rH rH60 *H "**. p,r. E ao £ aCO -H E « ZH r co r• • * •<5 .£» O tJ

AR3006I9

8w £

S|33vO W U! sia iiCQ 3B *S g MH a *go

Si

S ?3fid 3Sfl SgB

CO

^U^Zo1— 1£H

CJMCOCdQ

a1

^s

/•

N

COorH

13£

caON

13S

OeaCOIi02CO13Z

03P-13y

mi

oaml35

CQ>d-

CQm135s

CQCMt35s

CQi— iijd

-No-M*.

CO

h- .

^ca02CdEHCd3E3Cfi<:0-,

o oz z

o oz z

Q QZ Z

Q Oz z

O QZ Z

5 9A *fi

• zo

rH CS. .O O

o oz z

o o2 2

**N•OVX

O 0z z

^ - .60 6fE E

C |§'H

hirH «

"*

•

X

ON

CM•

\0CO

CN•

* *s 1

U•

*-T*

r- .•

\Q«— 1

•

cs

.ONcs

^.ocs

f".

rHes

vO.r-rH

es•

esc— 1

-6CQ

• HUCO

Oz

oz

oz

oz

ino.o

o•0

o•0

rQ.o

)rH.o

oz

oz

_6fg

§larH

0•Oen

cn•0rH

0•

tnf-H

»— 4•mrH

ONCO•m

ON

oo•

ONr•

un

^VH•

i/

r-*CM•^

vOCJN•

CM

*K

&fl

S

E3.H01OJC60<0

Qz

QZ

enO•

O

COO•0

QZ

O.0

2

eno•O

Qz

o2

o2

^60g

0)CO0)GCO60aeg

Q *«^z •cs

a oz •rH

Q tnZ •

.H

O "z *

Q ONZ •oo

rH

Z •cn

2 •

O -^2 •

Q (z •o

CS vOO •O O0.oO *0z •o

~-« --»60 6£E E

E3

X'HV4 013 01U caOJ O

ON CS• O

%^ •rH O

rH en• O

cs •i — 1 O

rH CS• O

CS •rH O

CO O• zrHrH

in Q• Zr-

•H

• o00 •. 0

• z

«-. r». Q

O

m co• orH .rH O

° Q• 2

cn O• Zm

_ ^60 60E E

• H O13 dO -H

.01JJ>HErH

CO•HJJcO.HJJGefl3cr .OJ>0efl01OJ'rHa,

01

OJ01OJ

jj .01

C JJ•H • -H

— « Ejj E "4C! CU rH0) CUol «-/ GOJ Or4 G -HCU O JJ

•H COJJ rH JJO rH • >HC -H en jj

E QJ COJ JJ COV. la 03 3OJ OJ -H 0"3 CU 0

O OJ13 m m >0) JJ 01 Ojj u < .aol cO cO•H a. orH N 13

la M 0)JJ O -H JJo ca i)C h OJ

OJ X JJ01 u J3 OJ13 .H -aG 4-H ON3 OO JJO la CT\ Oi-g,- cO » 01u ca m a)

E cs »«~» co 1J la cn la< 60 CN OJEH .H JJ>-> rH X OJ

rH « Sjj -H as 5501 S la•H -O eorJ CO <U CU

0) JJQ) JJ O 01JJ CO OJ 0)X U rH JJ_| -H _H 03J"O O CJ

C 0 .r.•H -

01 CJJ S OJ 'HOJ rH rH00 * O*«la 00 E QCO E CO ZH S CO S

....ea j* u -a AR300620

ORIGINAL

a

cn

oaoooQQQoa'aoQ 3ZZZZZZZZZZZZZ rH

.HJJ

. efl

co

oj <i).a13 C JJ

cO OJ CU_ 0)

G la OJ C C

+ js ojco u d

a; cu o d oj o) rH_C O _C rH OJ 0) 3 3 XJJ V4 OJ JJ J3 G .d rH rH XOJ O 13 OJ U 0) JJ O O OJO -H -H O -H -d 0) OJ JJ J3V4 _G V4 14 O JJ O O O rH

c O O O O O I O J t J U la XO J j S r H - H r H r H C S O O JJ JJ J3C JJ j3 tl J2 -G «v Wl rH -H.HJJO J O J U H U U - H O - G O J C C O JrH O -H I -H | rH U C -H -H |X la Q rH rH Q tn J3 CO OJ Q O CN- d O I ~ X I d CJ t. 3 I I VJJ rH rH rH C rH CQ -H JJ rH xj- vfl 0)

JJ O>Q. O Q i * - o m c o c o a a Q Q o E

-

G 3O X• H

o a o o a a o a a o a o o co oZZZZZZZZZZZZZ JJ CJH

JJ 01G JJCO -H

* ;!f» ZZZONZCS rHZZZZZ .OJ ^I > C

0 0.a <Hca JJ

eoo a a a o o o o o o a a o . oj .HZZZZZZZZZZZZZ I-H JJ.

Cu CE eoCO 301 a"OJ OJ

OQf^cnQr-rHcsQQQQO cn jsZ Z cs r» z m<rzzzzz oj H

§000000000000 jj -•— EZ2ZZZZZZZZZZ C -Q .H

0) CU rH01 CuOJ " Cw oad -H

O JJO O O O O O O O O O O O Q JJ.H COCSOOOOONOOvO^OODCOZ OrH JJ

cn I-H co vO .H 01 jjrH ON OJ 03 OJ d

la JJ COOJ la CO 3S OJ -H CT

ZZZ-HZZZ§ZZZZZ -a O O J c aOJ 01 01 > bJjj jj cn o O'-N 01 la <3 ja erf

T3 *f CQ C ^—' rH CU ON -a cuQ Q O O Q O O O O O Q Q Q jj Vi cj OJ >J2222222222222 O O - H J J U

d Cd Ula Q) la

CO OJ X JJ OJT3 JJ JJ OJ >d -r4 T) O3 rH ONO OO JJ OCU la ON O rH§<u —i d

CU MH. ~«. -~- . ~-» ~v . --~ ~~ **, . ~ •»* CJ * ai O60606060606060606060606060 01 in CQ3 3 3 3 3 3 3 3 3 3 3 3 3 -^ E CN 3 la

tJ S I OO la en la JJ

0) H 60CS OJ OJJ ** O JJ COeg M x <u <«

OJ rH JJ O CO £d CQ 01 *H 2! ^ CQOJ JS -H E la

OJ JS u J 13 CO XG JJ JS ca OJ O.J3

13 OJC JJ O M 133 03 0) OJ OJO O rH JJ tncu -a I-H eo aE -H o u o)O C U

jj rTJ Od d

0)60- . AS 0)la 60 E Q laCO 3 CO 2 OJHS cor 3

ORIGINAL03 OJ-H a a O O O O a .^I ZZZZZZZ JJ3 • eo2E 01 rH

JJ O•H >

CQ -H 03O N ^ - O O v O O O O rH CS"I Z r- r- Z en z l3 en C3N G 3S O S

JJ laCO O

^ iJ 4

20 -Ho o o o a a o o o u 01ZZZZZZZ C JJ

3 co -H-E 3 Ecr .H

rHOJaa > cc o a o o o o o o o oi zzzzzzz _a .Heo JJ

COOl JJQJ ,HrH JJaa a. a

( ~ . O o O O O c 3 N O Q S s)I Z rH u-i ao rH «T Z <8 3Z 3 m IH cs cn cr

rH OJ OJEH tn JS< OJ H_ vO OOOOCS OO JJM I Z r H c n r H i n i n Z •co 3 I-H G 01Cd 2 -H ua . .Hu <~* s

C .0 -Hm a) a. rHin a co cs r- o oo cn a.i z c s c s e o c n Q J V ^ G

,3 rH rH Vj Oco z a, G -Ha .aJJ -H COO rH JJca c —i • -H<r aaaao oa .HOIJJ

I ZZZZZ ZZ Q) .a 0) G3 .b JJ cOS O) la CO 3

3 QJ "H O*CU U

•O O CU 01ca Q) cn en > JI z z cs rH 02 cn la < _a a!

"~ rH .H co eg urH Oi O

JJ la tj 0) rJO O -rl JJ CJaa c ea ucs a o o o o oa v i o j i a

I 22OvOi-« O2 01 0) X JJ OJCS CS CS O "O JJ -O QJ >rH >3- G -H -O O

r—• rH 3 rH ON"O o oo JJ mx-* CU la ON O CSca E o) rH GrH aaoaa aa o cu ^

I 22222 ZZ U -.no3 01 m egX •—— S CS 3 rl— j 3 i oJ3 u I- en la jj—• H 60CS QJ UCO ^HrHi-HrHrH rHrH V^Q J J « JH ~ - .--.-v. - .~ I* x OJ «HM 60CM0606060 aOQO J J O c O SZ 3 3 3 3 3 33 cn -H 3. 53 CO=1 -H E V4QJ J -a eg x

C 01 OJ CUX)egQJ QJ JS Q)TJ d w d --N• H eg OJ 0) 0) rHr. jd o jd d oj xO JJ la JJ QJ C XrH QJ O Q) jd QJ OJ.C O rH O JJ JS JSU k l ^ 3 V 4 0) JJ rH 0)

O CJ O I O OJ X JJCd C JS ^ JS - . O l a J J r HEH O J U H O r H r H O C d e g

I -H I JS _4 |XOrHO 01 UJSCSJJJS I - I G -H U V-r J-JJrHrHrH CQO-H COOj01 » ~ » la Vj -HZ rH rH rH H H O3

O• H

•a QJG JJ U 01 T)3 oj OJ QJ Q)

JJ 01.—. .. . . eg egE -a o u euo c o -H i-u -H -a ucn c dJJ S Q) .H >HOJ rH rHeo--- cur QJVa 60 E O laeg 3 eg 2 QJEH z CO S 3

cj -aAR300622