Mr. James Van der Kloot U.S. Environmental Protection Agency … · 2020. 10. 26. · Mr. James Van der Kloot U.S.E.P.A. -2- 14 August 1990 The survey was initially intended to aid

WESTON WAYWEST CHESTER PA 19380PHONE 215-692-3030TELEX: 83-5348

0

MANAGERS DESIGNERS CONSULTANTS

14 August 1990

Mr. James Van der KlootU.S. Environmental Protection AgencyRemedial and Enforcement Response Branch (5HS-11)Waste Management DivisionRegion V230 South Dearborn StreetChicago, XL 60604

Re: Well Survey and AdditionalGroundwater Characterization

Dear Mr. Van der Kloot:

As you requested during our phone conversation of 11 July1990, we are submitting this letter to document the procedurefollowed in conducting a survey of private water supply wellspotentially located in the plume area. This letter alsoincludes the sampling results for three private water supplywells located east and southeast of the Dover Chemicalfacility. The identification and sampling of these wells wasinitiated in response to your 22 May 1990 letter requiringfurther definition of the eastward extent of the chlorinatedbenzene plume. In addition to transmitting the requestedinformation, this letter includes proposed locations for twoadditional wells east of the present monitoring locations.

Well Survey

The approach in conducting the well survey was to:

o Directly contact nearby businesses downgradient ofDover Chemical that potentially had existing watersupply wells on their property.

o Contact state and local agencies which might haveinformation on existing water supply wells in theentire survey area.

EPA Region 5 Records Ctr.

234639

Mr. James Van der KlootU.S.E.P.A. -2- 14 August 1990

The survey was initially intended to aid in defining theeastward extent of the plume. After discussing the initialfindings with U.S. EPA, the survey was expanded to include anarea broader than the anticipated plume boundary. As aresult, the survey area is defined by 4th Street to the south,15th Street to the north, Wooster Avenue to the east, andInterstate 77 to the west.

Three principal sources of information were used to locatewells in this area:

o Direct inquires to property owners or businessoperators by Dover Chemical Corporation.

o Mr. Terry Shumaker, Assistant Water/Waste WaterSuperintendent - Dover Water Works.

o The Groundwater Resources Division - Ohio Departmentof Natural Resources (GWR-ODNR).

Mr. David Rankin of Dover Chemical identified several inactiveexisting wells on commercial and institutional propertiesduring the original Remedial Investigation (conducted in 1985)and the recent additional groundwater investigation work(conducted in 1989) through personal communication with theproperty owners and/or business operators. The propertieswhere inactive wells were identified include the following:

o Dover Cryogenic

o Rees Cast Stone

o St. Joseph's School ("Football Field Well")

Information on these wells is listed in Table 1.

According to St. Joseph's staff, an additional abandoned well,reportedly capped below grade and covered with soil, may belocated in a small cemetery on St. Joseph's property.However, no data on this well is available and efforts tolocate it have thus far been unsuccessful.


Mr. Terry Shumaker of Dover Water Works identified sevenresidences on W. 14th Street and a warehouse on W. 8th Streetthat are not supplied with city water. To supply the 14thStreet residences with city water/sewer a sewage lift stationwould have been required. Residents on 14th Street, and GWR-ODNR records, confirmed that these houses had individual wellsused to supply drinking water. According to the owner of the8th Street warehouse property, the well located on theproperty (well file #485) is only used for the washroomfacilities and is not used for drinking water.

WESTON requested the locations, log and drilling reportrecords for all wells in the survey area from GWR-ODNR. Since1947, ODNR has required that Ohio water well drillers submitreports of all water supply wells that were drilled. Theagency maintains USGS quadrangle maps showing the locationsof reported wells denoted by the report file number. Well logand drilling reports for all wells identified by Mr. Rankinand Mr. Shumaker except the cemetery well and the 502 W. 14thStreet well were obtained from GWR-ODNR. The GWR-ODNR didnot have a record of any other wells in the survey area.

Based on the survey information, the wells listed in Table 1are the only existing supply wells known to be in the area.There is a possibility that abandoned wells or wells no longerin service were drilled on older residential or commercialproperty without being reported to the ODNR, such as thecemetery well. However, since the Dover Water Works wasestablished in 1895 and the majority of West Dover was notdeveloped until the 1920s, it is unlikely that many privatesupply wells were installed on residential properties. Waterlines were apparently extended to serve new residences asDover was developed. If any abandoned or nonservicable wellsdo exist, it is most likely that these wells would be locatedon non-residential property (i.e., the football field,cemetery, and 8th Street wells). As a result it isrecommended that all non-residential property owners in thesurvey area not previously approached be contacted directlyto identify any existing supply wells on their properties.


Groundwater Sampling

As proposed by the WESTON letter dated 17 July 1990, the 600W. 14th Street well (well file #489), the 1324 W. 14th Streetwell (well file #494) and the 410 W. 8th Street well (wellfile #485) were sampled by Dover Chemical and analyzed forVOCs by Wadsworth/Alert Laboratories. The analysis resultsare summarized in Table 2 and laboratory reports are presentedin Attachment 1.

Groundwater samples were collected from the 600 W. 14th Streetwell on 21 and 26 June 1990 and analyzed on 21 and 27 June1990. The analysis results show that different VOCs weredetected in each analysis but concentrations were at or justabove the quantification limit of 1 ppb. Chlorobenzene anddichlorobenzene isomers were detected in the 21 June sample;carbon tetrachloride and 1,1,1-trichloroethane were detectedin the 27 June sample. The results for all parameters arewell below the federal drinking water standards for thisresidential well.

One groundwater sample was collected from the 1324 W. 14thStreet well on 9 August 1990 and analyzed 10 August 1990. Theanalysis results show that low levels of target compoundscarbon tetrachloride and chloroform were detected in thegroundwater from this well. The carbon tetrachlorideconcentration of 2 ppb was below the drinking water MCL of5 ppb. The chloroform concentration of 4 ppb was well belowthe drinking water MCL of 100 ppb for total trihalomethanesand within the plume boundary target level of 6 ppb. Non-target compound 1,1,1-trichloroethane was detected at 8 ppbwhich is considerably below the MCL of 200 ppb.

One groundwater sample was collected from the 410 W. 8thStreet well and analyzed on 21 June, 1990. Prior to sampling,the owner of the property indicated that he was aware thatthe well was contaminated but that the water was only used forthe washroom facilities and was not used for drinking.Employees in the building are supplied with water from aninsulated beverage dispenser. In the past, the propertywasused to manufacture pre-cast concrete products. We do nothave information on past use of chemicals on the property.


Three non-target compounds, trichloroethene (TCE), 1,1,1-trichloroethane; and 1,1-dichloroethane were detected in thesample from the 410 W. 8th Street well. The TCE concentrationof 29 ppb was well above the drinking water MCL of 5 ppb.1,1,1-trichloroethane was detected at 93 ppb which is belowthe MCL of 200 ppb. 1,1-Dichloroethane was detected at 10ppb; there is no federal drinking water standard for thiscompound. Target compound monochlorobenzene was detected inthe sample at a concentration of 150 ppb; its current proposedMCL is 100 ppb. Dover Chemical has provided a copy ofsampling analysis results to the owner of the 8th Streetsampled well.

With regard to the plume boundary definition, the analysisresults indicate that contaminants of concern were notdetected in the 600 W. 14th Street or 1324 W. 14th Streetwells immediately east of the facility in concentrations abovetarget levels. However, monochlorobenzene was detected in the410 W. 8th Street well on the southeast portion of the plumeabove the monochlorobenzene target level. Therefore,additional boundary definition is required along the southeastportion of the plume.

Proposed Monitor Well Locations

Two additional monitor well locations have been selected tofurther delineate the eastern boundary of the southern halfof the plume. The proposed locations are shown in theattached figure. The wells will be installed in accordancewith previously approved procedures to a depth equivalent inelevation to the depth of the Football Field and 8th Streetwells. The installation of field located "Phase 2" monitorwells is a previously approved activity and does not requireformal Agency approval. However, we would be happy to discussany comments on this plan of action.


Additional Residential Well Sampling

Based on the groundwater results of the 600 W. 14th Streetwell and 1324 W. 14th Street well, the contaminantconcentrations in the other five 14th Street wells located tothe east are also probably below plume boundary target levels.Sampling and analysis of these additional wells is recommendedto confirm these results. However, rather than conduct theresidential sampling using the Dover Chemical Laboratory whichis accepted by the Agencies as "a field screening" technique,we propose that this sampling be conducted later in theRemedial Investigation, concurrent with the full round ofgroundwater sampling and analysis using CLP procedures.

Actions Required

The following actions have been recommended:

o Completion of a commercial property well survey in thefull target area by Dover Chemical and WESTON.

o Installation, sampling and analysis of two newmonitoring wells on the southeast of thegroundwater plume (as shown in the Attachedfigure) by WESTON.

o Confirmation sampling and analysis of all of theresidential wells by WESTON concurrent with thefull round of groundwater sampling and analysis.

We hope the information provided above is satisfactory.

Dover Chemical intends to provide the groundwater analysisresults to the owners of the sampled wells on 14th Street.Prior to informing the owners, Dover Chemical would like U.S.EPA to identify a source and phone number within EPA that theresidences could contact should they have questions regardingthese results. Please provide Dover Chemical with thisinformation by 16 August 1990 so that the residences may benotified promptly.


We look forward to your comments and input on the recommendedactions.

Very truly yours,

ROY F. WESTON, INC.

Peter S. Puglionesi, P.E.Dover Project Coordinator

PSP/nlh

Attachments

cc: S. Bergneen - OEPAD. Rankin - DoverD. Scott - Cutler & StanfieldW. Leis - WESTONR. McAlister - WESTONK. Harriz - WESTON

TABLE 1

WATER SUPPLY WELLS IDENTIFIEDIN DOVER CHEMICAL WELL SURVEY

Well File Location Depth Status/Use

484

485

487

488

489

490

491

492

493

494

Football field at endof 8th Street

410 w. 8th Street

Rees Cast Stone onDavis Street

Dover Cryogenic onDavis Street

600 W. 14th Street

520 W. 14th Street

510 W. 14th Street

501 W. 14th Street

507 W. 14th Street

1324 W. 14th Street

502 W. 14th Street

35

64

47

95

39

51

38

44

32

45

Institutional -Not in use

Business - Wondrinking usage1

Business - Notin use

Business - Notin use

Resident - In use

Resident - In use

Resident - In use

Resident - In use»

Resident - In use

Resident - In use

unknown2 Resident - In use

1 - Currently supplies washroom facilities.2 - No well log available from GWR-ODNR.

TABLE 2

VOC ANALYSIS RESULTS

600 W. 14th St. 1324 W. 14th St. 410 W. 8th St. Dover ChemicalWell Well Well Plume Boundary

June 21 June 26 August 10 June 21 Target Levels

Monochlorobenzene (ppb) 1 — — 150 100'

1,2-Dichlorobenzene (ppb) 2 — — — 620

1,3-Dichlorobenzene (ppb) 1 — — — 620

1,4-Dichlorobenzene (ppb) 1 -- — — 75

Trichloroethene (ppb)J — — — 29

1,1,1-Trichloroethane (ppb)J — 1 8 93

1,1-Dichloroethane (ppb)1 — — — 10

Carbon Tetrachloride (ppb) — 1 2 — 5

Chloroform (ppb) — — 4 — 6*

Not Detected,ppb - parts per billion.1 - The Work Plan identified plume boundary target level for monochlorobenzene (in

June 1988) based on the proposed MCLG. The current standard proposed in FeHeralRegister 54(97): 22093. May 22, 1989 for monochlorobenzene is an MCL of 100 ppb.

2 - These compounds are not associated with the Dover Chemical facility.MCL of TCE is 5 ppb; MCL of 1,1,1-trichloroethane is 200 ppb; no MCL for 1,1-dichloroethane. Federal Register 52(130); 25694. July 8, 1987.

3 - Chloroform is a trihalomethane. The MCL for total trihalomethanes is 100 ppb.US EPA, 1980 Ambient Water Quality Criteria for Chloroform.

I

IVWADSWORTH/ALERTLABORATORIES, INC.

COMPANY: DOVES CHEMICAL CORP.LAB f: 2113-68177MATRIX: WATCB

8AMPLI ID: H 6*21-90

DATI RKCZIVKD:DATI DTEACTKD:DAT* ANALYZED:

fOLATILt OBQAJ^CSNRBOD 8010/8020, - OC

6/21/90NA

6/21/90

BenzeneBenxyi chlorideBfOBobencene

BroBodlchloroaetbaoeBroaofori

Carbon tetrftcblorideChlorobenzeneCbloroethue

mNDND

NDNDND

ND160ND

-Chloroform ND1-Chlorohexane ND2-Chloroethyl rinyl ether ND

ChloroaethaneChlorotolueneDibrOBOchloroaethan*

Dibroioaethanc1,2-DlcMorob«n«ene1,3-Dichlorobeniene.

NDNDND

NDNDND

1,4-bichlorobeniene NDDichlorodifluoroBeth&ne ND1,1-pichloroethane 10

ti

1i2-bichloroethtae ND1,1-plchloroethjrlene NOcis-l|2-Diehloroethyl«ne ND

tranJf-l,2-Diehloroethylene NDDich,loro«€thAne ND1,2-pichloropropane ND

itranJB-l,2-Dichloropropylene NDEthylbenzene ND1,1,2,2-Tetrachloroethane ND

»

1,1,1,2-Tetrachloroethane NDTetrachloroethylene NDToluene ND

1,1,1-Trtchloroethane 93l,l,2-Trlchloroeth*n» NDTricjhloroethylene 29

NOTf: ND (None Detected, lower detectable li»it'ND* (Hone Detected, lower detectable 'lliit— (Not Analysed) j

10 Qg/1) as rec'dug/1) as rec'd

_ 4 T — —t n e-

WADSWORTH/ALERTLABORATORIES, INC.

COMPACT: DOVER CHEMICAL CORP. DATS UCtXVKD: 6/21/90LAB I: 2113-6817? DATl EinACTSD: HAMATRIX: WATER DATI AKALTZKDl 6/21/90

8AMPLI ID: H 6-21-90

TOLATILI OBGANtGSWTBOD 8010/8020 j- «C

TrichlorofluorcMtbAa* KDTrichloropropane KDVinyl chlorid* HD

Xylene* ND

NOTK: TO (Hon« Detected, lower detectable liiit • 10 uf/1) aa rec'dNO* (None Detected, low«r detectable lUit a ug/1) as rec'd

(Not Aoalyted) '.

i

SUR80GATE BECOVEBY: Z ACCEPTABLE LIMITSBro»ochloroieth&ne(Hall) 90 (75 - 125)Trifluorotoluene(PID) 103 (75 - 125)

IWADSWORTH/ALERTLABORATORIES, INC.

4-z' recr IH-EPCOMPANY: DOVER CHEMICAL CORP.LAB I: 2113-68176MATRIX* WATER

SAKPtl ID: N 6-21-90

sr

DAT! BICIIVKD:DAT1 ETTBACTKD:DATI ANALYZED:

6/21/90HA

6/21/90

fOUTILKMETBOO 8010/8020. - OC

B«nzen«chloride

BroBodichloroaethaoeBroioforaBroaoiethane

Carbon tetrachlorideChlorobeneeneChloroethane

Chloroforal-Chloroh«xane2-Chloroethfl vlofl ether

ChloroaethaneChlorotolueneDibroBOchloroiethane

Dlbroioaethane1i2-Dichlorobencene1i3-DichJorobenzene

TOmND

HDTOND

TO1m

NDND

NDNDND

NDII

It4-plchlorobentene 1DichjlorodifluoroBethane ND1,1-pichloroetbane ND

1,2-^ichloroethane ND1,1-Dichloroethylene NDcis-1i2-Dlchloroeth7l«ne ND

!

tr«n^-l,2-Dichloroethylene NDDichloroiethane ND1,2-pichloropropane ND

tran]B-1.2-Dichloropropylene NDEthylbenrene NDl,l,2,2-Tetrachloro«th»n« ND

i

1111!112-Tt trachloroethanaTetr)»chloroethyleneToluene

i

111 il-Trichloroethane1,1t2-TrIchloroethaneTricViloro«thylene

NDNDND

NDNDND

K7Tt: NDND«

(None Detected)(Hone Detected,(Not Analyzed)

loner detectable llait • 1lower detectable livit =

uc/1) »• rec'dug/1) M rec'd

- 9 T — -i n r

Hi*/. /VM Sine-


OOKPAKY: DOVER CHEMICAL CORP. DATS BSCBIVSD: 6/21/90LAB ft 2113-68176 DATS BITRACTSD: MAHATBIX: WATER DATS AHALYZSD: 6/21/90

8ANPLS ID: N 6-21-90

VOLATILK OBOAKJCSNSTflQO 8010/8020, - OC

TrichlorofluoroBethane KDTrlchloroprop«n« IfDVinyl chloride KD

Xylenes ND

HOTS: KD (None D«tect«d, low«r detect«bl« liiit a 1 ug/1) « rec'dND* (ifone Detected, lower detectable Halt • ug/1) «* rec'o

(l«ot Aaalyted)

SUB80GATS BEOOVBlY: X ACCEPTABLB LIXITSBroaochloroBethane(Hall) 91 (75 - 125)TrifluorotoluenelPID) 101 (75 - 125)

/¥/*


COMPANY* DOVES CHEMICAL COS P.LAB tl 2231-68764KATBIX: WATEB

SAMPLE IDs WATER RECEIVED(V26-90

DAT1 BKCIIVEO:DATE EXTRACTED:DAT! ANALYZED:

6/26/90NA

6/27/90

TOUT ILK OBGANJC3WTBOD 8010/8020, - CC

BententBeneyl chloridtBroaobentene

BroaodichloroaethaneBroaoforaBroaoaethaae

Carbon tetrachlorideChlorobenteneCbloro«than«

Chlorofora1-Chlorohexaat2-Chloroethyl

Chloro««th*n«Chlorotolu«n»Dibrokochloro»«thaQ«

DibroBoaethaa*Ii2-Dlchlorob«nzen«Ii3-Dlchlorob«nx«n*

HDNDND

NDNDND

1NDND

NDND

«ther ND

NDNDND

NDNDND

1,4-pichlorob^ntene NODichlorodifluoroBethane ND1,1-pichlorotthan* ND

ikl,2-l)ichloroethftn« ND1, l-)Dichlorc«thrltn« NDci«-l,2-Dichloro«thyl«n* ND

tr*n|»-l,2-Dlohloroethyl«n* NDDic^loroaethAA* ND1,2-picbloropropAae ND

itra^»-l,2-Dichloropropylen« ND£thylb«n«n« NDl,l,]2,2-T«trachloroeth»ne ND

1,1,1 , 2-Tetrachloro«thantTttrachloroethylen*

1 , 1 i l-Trichloroethan«1 , 1 ,2-Trichloro«than«Tric^lorotthylene

NDNDND

1NDND

NOTE: NDND*

(Noo« Detected,(Mont Detected,(Not Analysed)

lower detectable liait « 1lover detectable iiait a

uf/1) as rec'dug/1) as rec'd

TS T T M.OW

WAOSWORTH/ALERTLABORATORIES, INC.

COMPANY: DOVER CHEMICAL CORP.LAB I: 2231-68704MATCH: NATES

8ANPLI ID: WATER RECEIVED 6-26-90

VOLATILE OBOAJ IC8NETBQD 8010/8024

DATE RECEIVED:DATI EXTRACTED!DATS ANALYZED:

6/26/90HA

6/27/90

- GO

Trichlorofluoroaethane HDTrlchloropropaae MDVinyl chloride MD

Zjlene* VD

HOTE: MD (None DtUcted, lower deUctable [limit » 1ND* (Mono Detected, lower detectable Halt «— (Not Analyzed) :

ut/1) as rec'dug/1) »• rec'd

SURROGATE RECOVERY:Broiochloroaethane(Hall)Trifluorotoluene(PID)

X9899

ACCEPTABLE LIMITS(75 - 125)(75 - 125)

'"" . I ill [I I]s nnf'i

DOVER CHEMICAL CORPORATIONDAVIS AT WEST FIFTEENTH STREETPOST OFFICE BOX 40DOVER, OHIO 44622

August 22. 1990

Mr. Tom HarmonDOVER ANTIQUE MALL416 W. Eighth Street RearDover. OH 44622

Dear Mr. Harmoni

Thank you for a l l o w i n g Dover Chemical Corporation tosample your water well.

The organic chemical analyses completed by WadsworthLabs are attached.

The concentration of the organic compounds exceedsdrinking water standards.

The data have been submitted to the U.S. and Ohio EPAs.and at the suggestion of U.S. EPA. a sign stating "DO NOTDRINK" should be placed at each faucet. U.S. EPA Is awareyou are not using this water for drinking purposes but feels,as a safety measure, the sign should be posted.

Questions concerning the analyses or d r i n k i n g waterstandards should be directed to Mr. James Van der Kloot. U.S.EPA. Region 5, 230 South Dearborn Street. Chicago. IL 60604;telephone 312/353-9309.

Very truly yours,

DOVER CHEMICAL COFLP-ORAT I ON

id L. Rank>n. ManagerEmployee Relations andGovernment Regulations

DLRijmmpw/Harmon

Attachments

cct yames Van der Kloot. U.S. EPAScott Bergreen, Ohio EPA

(A Subsidiary of IEE Industries Inc.)

TELEPHONE 216/343-7711 TELEX 983-466 FAX 216/364-1579


August 22, 1990

Mr. Richard Moran600 W. Fourteenth StreetDover, OH 44622

Dear Mr. Moram

Thank you for allowing Dover Chemical Corporation tosample your water well.


Components detected are well below d r i n k i n g waterstandards.

These data have been forwarded to the U.S. and OhioEPAs. Questions regarding the analyses or d r i n k i n g waterstandards should be directed to Mr. James Van der Kloot. U.S.EPA, Region 5. 230 South Dearborn Street, Chicago, IL 60604;telephone 312/353-9309.

SIncereIy yours,

DOVER CHEMICAL CORPORATION

David L. Rankln. ManagerEmployee Relations andGovernment Regulations

DLRt jmmpwSMoran

Attachments

cct James Van der Kloot, U.S. EPAScott Bergreen, Ohio EPA

(A Subsidiary of |L£££ Industries Inc.)



August 22. 1990

Mr. Thomas J. Capozella1324 W. Fourteenth StreetDover, OH 44622

Dear Mr. Capoze Mai

Thank you for allowing Dover Chemical Corporation tosample your water w e l l .


Components detected are w e l l below d r i n k i n g waterstandards.

These data have been forwarded to the U.S. and OhioEPAs. Questions regarding the analyses or d r i n k i n g waterstandards should be directed to Mr. James Van der Kloot. U.S.EPA. Region 5. 230 South Dearborn Street. Chicago. IL 60604;telephone 312/353-9309.

Sincerely yours,

DOVER CHEMICAL CORPORATION

<;—V/David L. R a n k i n , ManagerEmployee Relations andGovernment Regulations

DLRt jmmpvACapoze I la

Attachments

cci James Van der Kloot. U.S. EPAScott Bergreen, Ohio EPA

(A Subsidiary of Industries Inc.)


Mr. James Van der Kloot U.S. Environmental Protection Agency … · 2020. 10. 26. · Mr. James Van der Kloot U.S.E.P.A. -2- 14 August 1990 The survey was initially intended to aid

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