I /

SDMS Doc ID 30006818

f

Site Investigation Report

for

Allied Chemical/Olin Corp.

Moundsville, Marshall County, West Virginia

WVD004374021

WV-091/WV-025

January 30, 1991

( Site Investigation and Response Office

Waste Management Section

West Virginia Division of Natural Resources

Prepared By: Reviewed and Approved By:

(. Robert E. 3a"ttler, Jr.Engineering Technician

kJ.Thomas BlakeNacural Resources Administrator

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TABLE OF CONTENTS

I. Introduction

II. Site Description

A. Site LocationB. Site Layout

III. Site History

A. Site Ownership and UseB. Waste Types and QuantitiesC. Assessments and Remedial Actions

IV. Environmental Setting

A. TopographyB. Surface WaterC. SoilsU. GeologyE. GroundwaterF. DemographicsG. Water SupplyH. ClimateI. Sensitive Environments

V. Toxicologic Evaluation

VI. Summary

VIT. References/Sources of Information

VIII. Appendices

A. Site Visit Summary ReportB. Analytical ReportsC. EPA Form 2070-13 (7-81)D. Consent DecreeE. Sensitive Environment File Review

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I

I. Introduction

This report was prepared by the West Virginia Division of NaturalResources, Site Investigation and Response Section, under acooperative agreement (WV-003414-01) with the USEPA Region III, forthe Allied Chemical/Olin Corp. Site, WV-025/WV-091, in MarshallCounty, West Virginia. Authorization is by Section 104 of theComprehensive Environmental Response, Compensation, and LiabilityAct of 1980. (Public Law 96-510 et. seq. )

II. Site Description

A. Site Location

The Allied Chemical/Olin Corp. site is located on Frontage Roadapproximately 2.5 miles southwest of Moundsville, MarshallCounty, West Virginia. The site is found on the Businessburg,Ohio-West Virginia 7.5 minute topographic map with thecoordinates 39 55 ' 00" north latitude and 80° 48' 04 westlongitude. (See Figure 1 for Site Location Map.)

B. Site Layout

The site is approximately 135 acres in area, bordered on thenorth and west by the Ohio River, on the east by Route 2, andon the south by the Moundsville Country Club. The siteconsists of two plants, the North Plant which is owned by OlinChemicals, and, the South Plant which is owned by LCPChemicals. This report pertains to the North Plant exclu-sively. (See Figure 2.)

Olin Corporation has closed and capped all ponds, landfills,and chemical storage areas located on-site, and, demolished anddecontaminated all production and storage structures previouslylocated on-site.

III. Site History

A. Site Ownership and Use

Allied Chemical Corporation began operations at this site,known as the Moundsville Works, in 1953, manufacturingToluene diisocyanate (TDI), Methylene dianiline (MDA), andhydrochloric acid. In 1980-1981, the Moundsville Works' NorthPlant was sold to Olin Corporation and the Moundsville Works'South Plant was sold to LCP Chemicals. Allied chemicalretained ownership of a portion of the Moundsville Worksproperty known as "Allied Park." (See Figure No. 2 for SiteLayout Map.)

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Allied Chonical / 01 in Corp. Site

FIGURE N0.1 SITE LOCATION MAP UNITED STATESDEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEYBUSINESS3URG QUADRANGLE '

OHIO-WEST V I R G I N A• . • / : . / • ' . 7.5 MINUTE SERIES (TOPOGRAPHIC:

CONTOUR INTERVAL 20 FEETDOTTED UN6S REPRESENT 10-FOOT CONTOURS

(POWHATAN POINT)*a«J iv SC

M7

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Allied Jiemical / 01 in Corp. Site . iGURE NO.2 SITE LA. JT MAP

NO"IMHANNC, C O L L E C T O R C

F I OfATION MAP

TO BGW36

L O C A T I O N O f O B S C S V 4 T I O N

L O C A T I O N O f « A N N E T T t S T * I ( . L

L O C A T I O N O f * A N N C » C O L L C C I O "

L O C A T I O N o r B R I N E W E L L

L O C A T I O N O r O B S t « v i T i O ' . *E.L : . JSU«

— »rO— LINE OF E Q U A L W A T E R - L E V E L E L E V A T I O NI N T E C T R E L A T I V E T O M E A N S E A L E V E L( D A S H E D W H E R E I N F E R R E D )

•^—— D I R E C T I O N O F G R O U N D - W A T E R F L O W

P R O P O S E D N E W W E L L C L U S T E R S

W E L H i l N O L O N Q E R I N S E R V I C EAR102416

Olin Corporation closed the Moundsville Works' North Plant inNovember of 1984, with all RCRA units being officially closedin 1987.

The Moundsville Works' South Plant, owned by LCP Chemicalsremains in operation.

The Moundsville Works' Allied Park, owned by Allied ChemicalCorporation, remains closed with no active facilities present.On October 22, 1981, the West Virginia Division of WaterResources of the West Virginia Department of Natural Resourcesand Allied Chemical Corporation entered into the Circuit Courtof Marshall County, W. Va., a Consent Decree ("Decree"), CivilAction No. 81-C-554N. In this "Decree," Allied Chemical agreedto permit reasonable access to the Moundsville Works' propertyby the state of West Virginia for the purpose of facilityinspection, sampling, and to monitor remedial activitiesoutlined within this "Decree." (See Section III-C for furtherdiscussion of remedial actions.) Confirmed groundwatercontamination due to the past practice of using unlined dumpsand surface impoundments, and storing drums of potentiallyhazardous materials on the grounds necessitated the enactmentof the "Decree".

Transferral of ownership agreements between Allied Corporationand Olin Corporation, and, between Allied Corporation and LCPChemical have included the binding provisions of the "Decree1into the purchase agreements.

B. Waste Types and Quantities

Previous visual inspection, sampling, and laboratory analysesof groundwater and soil samples exhibited the following knownor potential contaminants present:

Aniline Maleic AnhydrideAsbestos MethaneBarium Methyl ChlorideCarbon Tetrachloride Methylene DianilineChlorine MercuryChlorobenzene NitrobenzeneChromium Nitric AcidDichlorobenzene Phthalic AnhydrideDiaminotoluene ThioureaDinitrotoluene TolueneFormaldehyde Toluene DiamineHydrochloric Acid Toluene DiisocyanateLead Vanadium Pentoxide

Quantities of the preceding compounds are unknown and storagemethods included surface impoundments, drums, tanks, and,piles.(7)

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On March 26 and 27, 1989, samples were collected by WVDNRpersonnel from the groundwater underlying the site, fromsurface water on-site, and from surface water and sedimentalong the Ohio River. Fifteen samples were collected forvolatile and base neutral acid extractable organic analyses,fourteen samples were collected for cyanide analysis, and, twosamples were collected as trip blanks. Laboratory analysis ofthese samples exhibited the following known or potentialcontaminants present:

Acetone NaphthaleneBenzene PhenanthreneChlorobenzene AnthraceneChlorophenol Di-n-Butylphthalate1,3-Dichlorobenzene Fluoranthene1,2-Dichlorobenzene Chrysenen-Nitrosodiphenylamine bis(2-ethylhexyl)phthalateMethylene Chloride benzo(b)FluorantheneCyanide Ideno(1,2,3-cd)PyreneNitrobenzene 4-Chloro-3-methylphenol2,4-Dinitrotoluene di-n-Octylphthalate

The preceding list of compounds detected in samples collectedon-site exhibits the absence of several previously known orsuspected compounds. It is believed that the absence of thesecompounds may be due to the closure of various on-site surfaceimpoundments and unlined dumps, and the removal of numerousdrums and barrels previously stored on-site.(See Appendix B forAnalytical Reports and Table I for Data Sheets.)

C. Assessments and Remedial Actions

The groundwater under the facility is already contaminated fromthe old unlined surface impoundments and landfills operated byAllied Chemical Corporation. All RCRA facilities, includingunlined ponds, dumps, settling basins, piles, and barrelstorage areas have been officially closed. (7,12)

The site is operated with respect to binding provisions of aConsent Decree between the State of West Virginia and AlliedChemical Corporation. Allied has included these conditions inits sales agreements with LCP and Olin. (See Consent Decree,Appendix D.)

Actions taken to correct contamination include lining andsealing the bottom and sides of new ponds, grading abandonedponds to provide a slope away from the pond area and thencovering it with an impermeable material. Actions taken tocorrect migration of contaminated groundwater off-site are toallow for certain Ranney wells to pump continuously except forshort periods for maintenance. Sampling from selected testwells on site and wells off-site along with monitoring of the

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water level is performed quarterly. The required analysis forthe quarterly sampling are: chloride, pH, hardness, mercury,manganese, specific conductance, sulfate, and thechloromethanes (methylene chloride, chloroform and carbontetrachloride). Elevation of the ground water surface at eachmonitoring well is also determined each time a sample isobtained. The wells are indicated on the site sketch. (SeeFigure 2 for Site Layout map.) Elevations of water level forthe following wells are measured monthly: 33 A, B, and C; 34A, B, and C; 38 A, B, and C; 6; Ranney wells A, B, C, and D andthe Ohio River. These are indicated on the site sketch.

A ground water computer model was developed by Geraghty andMiller, Inc. for the total Moundsville site and concluded that:

A. The two critical flows for Ranney well A are 150 gpmwhere uncontaminated ground water from the plant siteflows under the Country Club and at 100 gpm wherecontaminated water begins to flow off-site toward theCountry Club. With the Country Club well notpumping, a Ranney well A flow of 50 gpm is necessaryto keep ground water on-site. The typical flow fromRanney well A is well above these two critical flows,e.g., approximately 1,000 gpm.

B. At the north end of the plant, Ranney well D needs tobe pumping to prevent off-site flow. The flow inwell D must be at least 225 gpm in order to preventoff-site flow. The flow from Ranney well D alsoaverages approximately 1,000 gpm.

C. Ranney well B and C provide little or no help incontrolling ground water flow. Well C cannot besubstituted for Well D, but by pumping well C at 100gpm, the minimum flow in D can be reduced by 120 gpmand still prevent off-site flow.

LCP Chemicals retained Geraghty and Miller, Inc., to install aground water collection system and develop a monitoring programfor three active settling basins at the facility. The initialreview of conditions indicated that the standard RCRAmonitoring program would not yield data representative ofupgradient and downgradient ground water quality conditions.Geraghty & Miller, Inc., therefore, proposed an alternativeplan which involved the installation of downgradient wells onlyand the introduction of a tracer to determine whether leakagefrom the ponds is occurring. The plan was submitted andapproved by the USEPA before it was implemented.

The 01in plant had two RCRA units that required monitoring ofground water. These units were the NPDES equalization basinand the toluene diisocyanate residue storage unit. Theequalization basin was built on the site of a former lime wastepond. The plan at Olin is for all ground water to flow into

AR102419

the Ranney well collector system and none to flow off-site.This is a condition of the consent decree between AlliedChemical, the plant's prior owner, and the State of WestVirginia. As part of the plant purchase agreement, Olin mustcomply with this requirement. Therefore, the ultimate fate ofany plant site groundwater has been documented. All Ranneywell water is discharged as per the plant's NPDES permit.

From the date of the consent decree, October 21, 1981,and for aperiod of twenty (20) years at the North Plant and a period offourteen (14) years at the South Plant, Allied agrees toprovide or arrange for the continuation of the pumping ofexisting Ranney wells or to substitute alternative methods toprevent the migration off-site of contaminants in thegroundwater, if any, attributable to Allied's operations. Iffuture studies show that the existing Ranney wells or anyalternative methods used are not sufficient, Allied agrees toemploy corrective measures as are necessary. Allied agreed toconduct these updated studies of the water table levels everysix months following the date of the entry of the decree.Allied agrees to notify the State of West Virginia immediatelyupon receipt of information by Allied that one or more of theRanney wells located on the site is not operating for more thana twenty-four (24) hour period. Allied further agrees tocommence a monitoring program of the water levels within five(5) days after cessation of the pumping of a Ranney well for aperiod longer than twenty-four (24) hours or immediately uponnotification of such cessation, whichever is later.

Ground water at the site, with the exception of the areaimmediately to the east of the production facilities, hasbecome contaminated with both organic and inorganic compounds.The chemical trash dump was apparently the source for most ofthe organic contaminants arriving at Ranney Collector E, whilemost of the inorganic pollutants appear to originate in the NADpond and TDI residue pile area. The organic compounds that arecontaminating Ranney Collectors B, C and D apparently originatein the area of the North Plant that was formerly used tomanufacture and store aniline, although other smaller sourcesof these contaminants may exist. Contaminated ground watershould remain confined to the plant property and no migrationto neighboring wells or the Ohio River should occur withcontinued pumping of the Ranney wells. Corrective actionstaken on the storage areas should have reduced further leachingand percolation of any contaminants into the ground water.(7)

Sampling from test wells on site and wells off site along withmonitoring of the water level is performed quarterly andreported to the Division of Water Resources of the WestVirginia Department of Natural Resources and EPA Region III.All ground water is treated and discharged from the facilityvia NPDES outfalls and sampled for total suspended solids,BOD5, total residual chlorine, chlorides, total mercury, carbontetrachloride, chloroform, methylene chloride, pH, hexavalentchromium along with measurements of flow and temperature.(7)

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IV. Environmental Setting

A. Topography

The site is located within the Unglaciated Alleghany Plateausection of the Appalachian Plateau Geomorphic Province.Topography at the site is generally level, slope isapproximately one percent. Site slope and drainage is to thewest, towards the Ohio River. The elevation at the site isapproximately 650 feet above mean sea level (MSL). The site islocated within the 100 year floodplain of the Ohio River.(1,8)

The area surrounding the site is characterized by narrowvalleys and hills which rise abruptly above the valleys.Slopes are generally very steep along the walls of the valleysand moderately steep to gently sloping along the hilltops.Elevations range from approximately 623 feet above MSL alongthe river to approximately 700 feet above MSL along thehilltops east of the site.(l)

B. Surface Water

Drainage from the site is to the west towards the Ohio River,which is the only major surface water body in the area. In thesite area the Ohio River flows generally north to south and isused primarily for industrial and recreational purposes. Thereare no known surface water intakes within fifteen stream milesdownstream of the site on either the West Virginia or Ohiosides. The normal pool elevation of the Ohio River inproximity of the site is 623 above feet MSL.(l) The site islocated within the 100 year flood plain as shown on the USGSMap of Flood Prone Areas.(8)

C. Soils

Soils in the site area are dominantly the Wheeling andHuntington soil series. The Wheeling series consists of deep,well-drained terrace soils that have developed from water-laidsands and gravel, occupying the gently sloping benches abovenormal flood areas. Texture of the surface soil is sandy loam,both gravelly and nongravelly. Subsoil textures range fromsandy clay loam to silty clay loam. Depth to coarse gravelranges from zero to six feet. Permeability ranges frommoderate to moderately rapid. Depth to bedrock at the siteranges from five feet to over fifty feet. The reactivity (pH)of the Wheeling series soils is strongly acid.(2)

The Huntington series consists of deep, well-drained,bottom-land soils. These soils have developed from recentalluvium washed from uplands underlain by alkaline sandstoneand shale. The texture of the surface soil ranges from finesandy loam to silty clay loam, but predominantly silt loam.The texture of the subsoil ranges from silt loam to sandy clayloam or silty clay loam. (See Figures 3 and 4 for Soil Mapsand legends.)

AR102421

Allied Chemical / 01 in Corp. Site

FIGURE NO.3

GENERAL SOIL MAPHilly so-'i rotmed on %h<ile. MtXIone. s»nd

Hone. *f>0 *om* lini«\toi><>: WrtlniOteUnd

Hilly. fO«k*> %0-li lo'.tifd oo Kid

GENERAL SOIL MAPMARION AND MOHONOAI.IA COUNTIRs

WEST VIRGINIA

80*45' WETZEL COUNTY 80;AR102422

Allied Chenrical / 01 in Corp. Site

FIGURE NO.4

AREA SOIL MAP

u. I of'MTMtNt or AMlCULTudtKW. CO,H.V.1«,« „«,„.(

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GENERAL SOIL MAPMARION AND MONONGAUA COUNTIES

WEST VIRGINIA

N

SOILS UGtND

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Permeability is moderate throughout most of the series soils;. somewhat rapid in the fine sandy loam and slow in the silty

clay loam. Reactivity (pH) ranges from slightly acid to mediumacid. Depth to bedrock ranges from 5 feet to 12 feet.(2)

D. Geology

The site is located in the Unglaciated Alleghany Plateausubdivision of the Appalachian Plateau Geomorphic Province.(3)

Underlying the site is the Cenozoic aged Quaternary Alluvium.The Quaternary Alluvium consists of unconsolidated alluvialdeposits of sand, gravel, silt, and clay.(5) Gravel analysesshow rock types include fine to medium sandstone, shalysandstone, shale, limestone, granite, quartzite, and veinquartz. Granite, quartzite, and vein quartz were transportedand deposited from parent bedrock in Canada by a glacier in

/ Pleistocene time. The other rock types are locally derived.(5)v The Quaternary Alluvium reportedly ranges from 77 to 91 feet in

thickness in the site area.(11)

Stratigraphically underlying the Quaternary Alluvium at thesite is strata of the Pennsylvanian aged Monongahela Group.The Monongahela Group consists of non-marine cyclic sequencesof sandstone, siltstone, red and gray shale, limestone, andcoal, and, contains the Uniontown and Pittsburg Formations.This group extends from the top of the Waynesburg coal to thebase of the Pittsburgh coal, and includes the Waynesburg,Uniontown, Sewickly, Redstone, and Pittsburgh coals.(5)

Outcropping approximately 500 feet east of the site, andstratigraphically overlying the Monongahela Group, coveringmost of the area within four miles of the site is strata fromthe Permian aged Dunkard Group. The Dunkard Group consists of

f non-marine cyclic sequences of sandstone, siltstone, red andgray shale, limestone and coal, and contains the Greene,Washington, and Waynesburg Formations. This group extends fromthe top of the exposed bedrock section to the top of theWaynesburg coal and includes the Washington coals andlimestones.(5) (See Figure No. 5 for Geologic Map.)

There are no known major structural features or fratures/jointswithin three miles of the site. The axis of an unnamed synclineis located approximately 8 miles east of the site. The axis ofthe Loudenville syncline is located approximately 12 milessoutheast of the site. It is believed that strata dip inthe site area is towards the southeast at a rate ofapproximately one percent based on the Pittsburg Coal.(15) Themost conspicuous type of jointing found in the Ohio River isthe rather extensive joint system which develops in some of thethick shale and siltstone sequences. Joints are present in someof the thinner beds, especially the limestones. Faulting of the

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Allied Chemical / Olin Corp. Site

FIGURE NO.5

GEOLOGIC MAP and LEGEND

40°00'1968

GEOLOGIC MAPOF

WEST VIRGINIA

40°00'

»etT .,r,O.N,A GtCX-OOCU A

GliOUK.lC UNIT

CENOZOIC

_ I Qiuiciiutiy AlUmumUit I 0-12(1 fen lliK-l

AHuvul dcr" iof "lid. »>a>H. wU. »ndcUy.analyw* *l*»w riwi type* include fine k>wndMimc. «haly «anduc«nc. **lc. liineMiHi»c. quMl'MC. »nrf **«*» q*uni. (Wanilc.«>1 vol. iftnu »«t« lfj«««»l»0 «nJbam |«UCM h«d(UCl in Cuudi t-y > »UtK. JOM..Jrku<»w l»i«. The <«lm till urn «tc kiilly

_^. ——. Lakc-drposiied. interbedded....———it kmenonc and fray, calcareous, clayeysliale is common in Ihe northern panhandk. To theaomh and west sanduone becomes more prorni-nenl. whereas Ihe fray limcunne and shak faciestrade «"0 nd shale with inerbedded my 10 pur.pish calcareous shak teds, and CmaHy into m- ,.hroken red shak. '

( I Conemaugh GroupI " I 0-600 tea thickMOMly aunmanW cydic leuncncct of red and gray ^

atiak.«IMIone,andund»»e.««hll«nlimcilone __•idcnal.Eiiulid<rroiiilhrka>loflheP«»fa»rlh ——coal 10 Ihe lop of Ihe Upper Frecfon coal. Numer- IOSoin Ihick rad-oed lenuenott an pmeni. tomemd>n( laieraly i"o itay ffeih-«ai<r fcmcuone. , .M«chofl«eia«dIIO«eil«ret«lar»llhiclne«and / VezloM. The Ihiimeil teqwrnce • pmeM in the , \nonhem panhandk. due x> ihe atomce of Ihict Isandstone beds, the onanpearaiKc of tome cycle*- }Ihr- ' rquenca. »"d a iarfer amounl of more fIV unwlBied mafinc wdMneiM. *~*

$PT ~>#ZELC0UNTY

PALEOZOIC

Permian or Pennsylvanian System

7" I Dunkard Group| " | 0-I20U fc« ihick

Nonmarine cyclic sequences of sandstone, tinstone.red and pay shale, limestone, and coal. Emendsfrom the top of Ihe exposed bedrock to the lop ofthe W«ynesbur« coal. In the northern panhandle.

"yitkatrr ?.'.;: ^% -?° v #-SZZ£r*~a"'~ ^-'A^^co^Y

"xS -lUl ———PENNSYLVANIAN SYSTEM

flB9|| MonongaheU GroupP flyg 0-400 feel Ihick

Nowiianne cydk seouences of sanduone. sillslone.red and my shale, bimone and coal. E.icnds

AR102425

F. Demographics

The population breakdown in the site area is as follows: 34people within 1/4 mile, 342 people within 1/2 mile, 851 peoplewithin 1.0 miles, 2,071 people within 2.0 miles, and 7,700people within 3.0 miles. (Population estimates are based ontopographic map house counts assuming 3.8 people per dwelling.)

The Washington Lands School is located approximately 3,000 feetsoutheast of the site.(See Figure 2.)

G. Water Supply

Marshall County Public Service Districts (PSD's) No. 2, 3, and4 provide public water supplies in the site area on the WestVirginia side of the Ohio River. The Moundsville City WaterDepartment (MCWD) supplies water to PSD No.'s 2, 3, and 4 fromits Water Works Plant located in Moundsville. Water isobtained by the Water Works Plant from nine groundwater wellslocated along the Ohio River approximately 2.6 miles northeastof the site. Water is collected at the Water Works Plant,treated, and distributed to the various PSD's. MCWD alsoprovides a public water supply from its Water Works Plant toresidents of the city of Moundsville and vicinity. Totalpopulation served by the Water Works Plant is reportedly 17,000people. Total populations served by the PSD's are: No. 2 -2,250 people; No. 3 - 2,800 people; No. 4 - 1,173 people. TheMCWD Water Works Plant is believed to be the sole source ofpublic water supplied within three miles of the site withinWest Virginia. Approximately 198 people within three miles ofthe site (within West Virginia) are not served by a publicwater supply and are believed to be utilizing private waterwells for their water supply. The closest domestic groundwaterwell to the site is located approximately 2 miles south of thesite at the residence of Mr. Arthur Reed and reportedlyutilizes the Quaternary Alluvium as its source.(15)

No known public water supplies are provided within three milesof the site on the Ohio side of the Ohio River. Privategroundwater wells are believed to be the source of water forapproximately 1,813 people residing within three miles of thesite, on the Ohio side of the Ohio River. No informationconcerning private water wells in the site area is presentlyavailable.(14)

H. Climate

Marshall County has a continental-type climate, characterizedby profound seasonal temperature changes. The average annualprecipitation is 42.82 inches, the net precipitation is 13.82inches, and, the one-year, 24-hour storm event is 2.25 inchesof rain. (6)

AR102426

surface strata in the Ohio River Valley is not extensive. Theintensive folding associated with the building of theAppalachian Mountains did not extend into the Ohio RiverValley.(11)

Outwash from the Wisconsin continental glacier depositedgreat quantities of glacial debris along the present course ofthe Ohio River, resulting in alluvial aggradation of thevalley to a height of approximately 120 feet. The recession ofthe Wisconsin glacier resulted in cessation of the glacialdebris carried by the river, and the Ohio River then begancutting down through the alluvial deposits. The glacial valleyfill deposits are found on both sides of the river and underliethe river and recent floodplain deposits.

E.Groundwater

Groundwater in the site area is used for domestic andindustrial purposes. The aquifer of concern in the site areais the Quaternary Alluvium. The Quaternary Alluvium, isreported to have high potential as a major source of water, butin places may be reduced due to limited distribution of theaquifer, thinness of the permeable zones, and high ironcontent. Wells in this unit typically yield between 1.5 and2,350 gallons per minute, water levels range from 11 to 68feet, and well depths range from 25 to 218 feet. (5) Datacollected on-site by WVDNR personel on 4-26 and 4-27-89exhibited the depth to water at the site as ranging from17'-11" to 28'-10". (12)

Recharge to the alluvium is derived predominantly from the OhioRiver. Because the Ohio River flows across the alluvialdeposits, the hydraulic connection necessary for river rechargeis present.(10)

When a landward gradient develops during high-river stages,water flows landward through the aquifer. When a riverwardgradient develops during low-river stages, water flowsriverward through the aquifer.(11)

When the river is at high stage a cone of depression, createdby the drawdown pumping of water wells, will create a landwardgradient thereby recharging the aquifer.(11) Theoretically,pumping on the Ohio side of the river could cause contaminatedgroundwater from the site to flow through the Valley fillmaterial under the river.

Domestic wells in the site area also tap into the Dunkard Groupand possibly the Monongalia Group.(15) The Dunkard Group andthe Monongahela Group are reported to have low potential forindustrial and public supplies, exept in very local,geologically and topographically favorable locations wherefractures are plentiful.(5)

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I. Sensitive Environments

According to a file review by the West Virginia Division ofNatural Resources' Natural Heritage Program, there are no knownfederal or state listed, threatened, or endangered specieswithin three miles of the site.There are no known wetlandswithin three miles of the site (See Appendix E for SensitiveEnvironment File Review.)

V. Toxicological Evaluation

A review of the quantitative analyses on samples collected at theAllied Chemical/Olin Corporation site revealed that existingApplicable or Appropriate and Relevant Requirements (ARAR's) wereexceeded at several sampling locations.

A groundwater sample collected at Observation Well Cluster No.18(sample station GW-18) exhibited the presence of the organiccompound Chlorobenzene at a concentration of 6100 ug/L. The USEPAhas established a Reference Dose (RfD) of 2E-2 for the compoundChlorobenzene. A 70 Kg adult ingesting 2.0 liters of water per dayfrom Well No. 18 would receive a dosage of 1.74E-1 mg/Kg/day ofChlorobenzene which exceeds the established RfD. Animal studiesindicate that histopathological changes in the liver and kidneysmay occur in mice following oral exposure to Chlorobenzene. (9,10)A groundwater sample collected at Observation Well Cluster No. 24-A(sample station GW-24A) exhibited the organic compounds Benzene at210 ug/L and n-Nitrosodiphenylamine at 51 ug/L. Benzene isclassified as a Group A Human Carcinogen with a Cancer PotencyFactor (CPF) of 2.9 E-2 mg/kg/day. A 70.0 kg adult ingesting 2.0liters of water per day from Well No. 24-A would incur a 1.74 E-4increased risk of cancer in their lifetime. Nitrosodiphenylamineis classified as a Group B2 Human Carcinogen with a CPF of 4.92E-3. A 70.0 kg adult ingesting 2.0 liters of water from Well No.24-A would incur a 7.18 E-6 increased risk of cancer in theirlifetime. (9,10) Human Carcinogenicity Data indicates thatincreased incidences of nonlymphocytic leukemia may occur followingoral exposure to Benzene. Animal studies indicate that transitionalcell carcinomas may in mice occur following chronic exposure toN-Nitrosodiphenylamine. (9,10)

A groundwater sample collected at Observation Well Cluster No. 18(sample station GW-18) exhibited the organic compound1,4-dichlorobenzene at a concentration of 5100 ug/L.1,4-Dichlorobenzene is classified as a Group B2 Human Carcinogenwith a CPF of 2.4 E-2. A 70.0 kg adult ingesting 2.0 liters ofwater per day from well No. 18 would incur a 3.5 E-3 increased riskof cancer in their lifetime.(9,10) Animal studies indicate thathepatocellular adenomas may occur in male mice following chronicexposure to 1,4-dichlorobenzene.(9,10)

AR102428

Groundwater samples collected on-site exhibited several additionalorganic compounds present, however, these compounds are present atconcentrations which would not produce a daily dosage that wouldexceed established Reference Doses. (See Worksheet forToxicological Evaluation.)

Toxicological Evaluation Summary

A groundwater sample collected at observation well No. 24-Aexhibited the presence of the Group A Human Carcinogen Benzene. Agroundwater sample collected at observation well No. 18 exhibitedthe presence of the Group B2 Human Carcinogen 1,4-Dichlorobenzene.However, groundwater at the site is pumped, collected, anddischarged to outfall pads in accordance with provisions of theConsent Decree. The Consent Decree remains in effect until theyear 2001 at the Allied Chemical/Olin Corporation North Plant.Therefore, it is believed that as long as the groundwater is beingpumped, collected and discharged off-site, no migration ofgroundwater contamination will occur. Remedial actions taken onthe ponds, dumps, and storage areas should have reduced thepossibility of futher groundwater contamination through percolationand leaching. Surface water and sediment are not consideredavailable for human ingestion, therefore, a risk assessment is notpresented herein.

VI. Summary

In accordance with provisions of the Consent Decree, Ranneycollector wells located on-site are pumped to establish a cone ofinfluence thereby inducing river water flow into the alluvialaquifer underlying the site. The provisions of the Consent Decreeremain in effect at the site until the year 2001. Provided thaton-site pumping continues, groundwater contamination should beconfined to the site area until the year 2001. Risk assessment dueto present groundwater contamination by known and probable humancarcinogenic compounds beyond the year 2001 has not been addressedby this site investigation.

Due to the limited-restricted public access to the site, thepotential for exposure to surface water and sediment contaminationis considered to be minimal.

AR102429

U) ( U.'jl I . ' < / . f i ___ i-=:_L_i_J ______ -'j I . y

CARCINOGENS

SAMPLE NO. SUBSTANCE CCNCEN. OJY,v*3 /«- INGESTED

^ P, e 2/o

INDIVID.WT.

70 K,

FORMULA

(o^OC^70

DOSEmg/Kg/day

G.oE-a

CPF1/(mg/kg)/day fa\ c, )

'^e-* (t.wiKg (O.o5l)(2)

70 70

AR102430

.——^-_-_._^_— ,._.._ _^'..__._.__.. _y—'.

•>•'• NON-CARCINOGENS

JWLE NO. SUBSTANCE CONCEN. QTY. INDIVID. DOSE RfD

,________________________\<ji. INGESTED WT. FORMULA mg/nC/day_______mg/kg/day

J-.

~7f> f , o £ -?..

^Kg —V^~ ;.^3E-3 b'.DE-S

z^oL "76'Kxj —rZT" :?,7/E-2

AR102431

Table I ALLIED CHEMICAL/OLIN CORPORATION SITE

Water Organics

STATIONNUMIR

STATION

LOCATION

ocmwELJUtClbl)

Ch lorobenzene

2-Ch lorophenol

1 ,3-dI-ch lorobenzene1,4-Dlchlorobenzene1,2-Dich lorobenzene2,4-Dtch lorophenolbls(2-ethylhexyl )phtha 1 ate

G W - 2 3 B

Groundwater atMonitoring WellNo. 23

ug/L

8

8 (J)

27

G W - 2 7 A

Groundwater atMonitoring WellNo. 27A

ug/L

5 (J)

G W - 2 7 B

Groundwater atMonitoring WellNo. 27B

GW-18

Groundwater atMonitoring WellNo. 18

ug/L

1300

53 (J)

620

5100

64 (J)

^ _ ,

t

AR102432

TABLE I ALLIED CHEM1CAL/OLIN CORPORATION

Water - Organics (ug/L)

STATION "MfBER

STATION

LOCATION

ccmxjrcsUbltUbD

Acetone

Benzene

Ch lorobenzene

Ch lorophenol1,3dl-ch lorobenzene1,4DIchlorobenzene1,2Dlch lorobenzeneN-N!trosodl-pheny 1 amlne

BGW-36

G . W . Backgroundat Obs. WellNo. 36

GW-29B

MonitoringWell No. 29B

ug/L

8

14

GW-24A

MonitoringWell No. 24A

ug/L

210

330

260

51 (J)

GW-24B

MonitoringWell No. 24B

ug/L

10 (J)

6 (J)

GW-23A

MonitoringWell No. 23A

ug/L

6100

10 (J)

68

590

1900

AR102433

TABLE I ALLIED CHEMICAL/OLIN CORPORATION

Water - Organics

STATIONNuttSR

STATION

LOCATION

COPONEDETECTED

Chlorobenzene1,3-111 chlorobenzene1,4-01 chlorobenzene

Nitrobenzene4-Chloro-3-methy 1 phenol2,4-DlnltrotolueneDl-n-butylphthal ateButy Ibenzy 1-phthal ateDl-n-octy Iphthal ate

OR-1

Ohio RiverSurface Water,Upstream

ug/L

1 (J)

7 (J)

9 (J)

1 (0)

5 (J)

0.9 (J)

0.6 (J)

3 (J)

OR-2

Ohio RiverSurface Water,At Site Outfall

ug/L

7

_

FB-1Field Blank

N _

f

1

AR102434

TABLE I ALLIED CHEMICAL/OLIN CORPORATION SITE

Soil - Organics

STATIONMM3ER

STATION

LOCATION

OM3OJMBLtltUtUMethy leneChloride

Acetone

Naphtha lene

Phenanthrene

AnthraceneDl-n-butylphthalate

Fluoranthene

Pyrene

Chrysenebls(2-Ethylhexyl )phthalateBenzo(b)f luorantheneIdeno(1 ,2,3-cd)pyrene

'

N_

ORS-1

Sediment samplealong Ohio Riverupstream

ug/Kg

140

1000 (J)

350 (J)

200 (J)

1500 (J)

2300 (J)

1400 (J)

1700

1000 (J)

ORS-2

Sediment samplealong Ohio Riverat site outfall

ug/Kg

93

39 (J)

440 (J)

1100 (J)

360 (J)

1700 (J)

1900 (J)

1200 (J)

1500

1600 (J)

1100 (J)

•*

—

.

—

(

--AR102435

TABLE I ALLIED CHEMICAL/OLIN CORPORATION

Water - Inorganics

STATIONNUTCER GW-24A

STATION

LOCATION

COPOUMBDETECTED

Cyanide

MonitoringWell No. 24A

ug/L

19.5

AR102436

VII. References/Sources of Information

1. U.S. Department of the Interior Geological Survey, 1978. USGSBusinessburg, Ohio-W. Va. 7 1/2 Minute Series topographic map.

2. U.S. Department of Agriculture Soil Conservation Service inCooperation with the W. Va. Agricultural Experiment Station,1960. Soil Survey of Marshall County, W. Va.

3. Thornbury, W. D. , 1965. Regional Geomorphology of the UnitedStates. Published by J. Wiley and Sons.

4. Cardwell, D. H. , Erwin, R. B., Woodward, H. P., Lotz, C. W.,West Virginia Geological and Economic Survey, 1968. GeologicMap of West Virginia.

5. Schultz, R. A., U. S. Geological Survey. Ground-WaterHydrology of the Minor Tributary Basins of the Ohio River, WestVirginia. 1984.

6. U. S. Department of Agriculture Soil Conservation Service incooperation with the W. Va. Soil Conservation Districts.Erosion and Sediment Control Handbook for Developing Areas,W. Va.

7. Akers, M., WVDNR - Wastemanagement Section, 1988. PreliminaryAssessment for Allied Chemical Corporation site.

8. U. S. Army Corps of Engineers. Flood Plain Information for theOhio River, Marshall County, West Virginia. December, 1971.

9. USEPA. Integrated Risk Information System. On-line databaseaccessed September 17, 22, and 26, 1990.

10. ATSDR. Toxicological Profiles (various compounds). AccessedSeptember 25, 26, 27, October 2, 9, and 14, 1990.

11. W. Va. Geological and Economic Survey, Vol. XXII. Geology ofthe Ohio River Valley in West Virginia. December, 1956.

12. WVDNR Waste Management - RCRA files.

13. Moundsville City Water Department in a phone conversation withR.Sattler, WVDNR on 9-14-90.

14. Jeff Crisler, Ohio EPA, in a phone conversation with R.Sattler, WVDNR on 9-14-90. (Info derived from the Model StateInformation System - Ohio Public Water System Inventory.)

AR102437

Appendix A

Site Visit Summary Report

AR102438