SMC ENVIRONMENTAL SERVICES GROUP

SMC ENVIRONMENTAL SERVICES GROUPD .P.O. Box 859 D P.O. Box 0600Valley Forge, PA 19482 Basking Ridge, NJ 07920 *->(215) 265-2700 (908) 647-7000 Q

0. s. epft REGION HL (3HW2i)8H\

> WE ARE SENDING YOU Attached D Under separate cover via _______________ the following items:

D Shop drawings . D Prints D Plans D Samples D SpecificationsD Copy of letter ' D Change order .

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THESE ARE TRANSMITTED as checked below:

D For approval D Approved as submitted D Resubmit____copies for approval""TS For your use D Approved as noted D Submit___copies for distributionP As requested P Returned for corrections P Return___corrected printsP For review and comment P ________________________________________D FOR BIDS DUE_________________19_____ P PRINTS RETURNED AFTER LOAN TO US ,

REMARKS____________________________:_______________________

COPY TO » 3

4R303796If enclosures mre not as noted.

SMC Environmental Services GroupA Subsidiary of Science Management Corporation,

P.O. Box 859 . -Valley Forge, Pennsylvania 19482Telephone 215 265-2700

August 25, 1992Ref: 9723-92003 (3.3)

Mr. David ByroProject ManagerU.S. Environmental Protection AgencyRegion III (3HW21)841 Chestnut StreetPhiladelphia, PA 19107

Subject; Results of Photomirex Data Retrieval for theRuetgers-Nease Chemical Company SiteState College, PA

Dear Mr. Byro:

This letter presents the findings of the photomirex dataretrieval for the subject site. The retrieval of this datahas followed the U.S.EPA approved Plan of Action datedJune 23, 1992.

As per the approved Plan of Action, estimates of photomirexconcentrations were calculated for the samples listed inTable 1. These particular samples were selected based onthe following criteria:

1. Samples were selected from each of the various typesof media sampled during the Remedial Investigationwith the exception of air (i.e., sediment, surfacewater, surface soils, deeper soils, ground water andfish tissue).

2. Samples were selected across a wide areal distributionof the study area.

3. Representative samples were selected from keylocations within the' study area (i.e., tank farm area,building #1 area, designated outdoor storage area,former temporary drum repackaging area, freshwaterdrainage ditch, Thornton Spring, Spring Creek, BennerSpring and representative ground water locations).

4. Samples with detectable levels of mirex were chosen.

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SMC Environmental Services GroupA Subsidiary of Science Management Corporation

August 25, 1992Ref: 9723-92003 (3.3)Mr. David ByroUSEPA Region IIIPage Two

Table 2 presents the photomirex concentrations that werecalculated for each of the samples listed in Table 1.Environmental Standards Inc., the project validationcontractor, was able to calculate the photomirexconcentrations from the existing analytical data set forall of the samples. A complete copy of EnvironmentalStandards report has been included as Attachment A. Asdiscussed in Environmental Standards report, the reportedphotomirex concentrations should be considered as"estimated" values.

Based upon a comparison of the photomirex data versus theexisting mirex concentrations, a trend is apparent. As canbe seen in Table 3, the highest photomirex levels werecalculated for samples with elevated mirex values.Similarly, the lower photomirex levels were calculated forsamples with low mirex values. On average, the levels ofphotomirex appear to be approximately 9 percent of themirex levels, when detectable concentrations of mirex werereported. The only exception is ground water sampleMW-37S, where the photomirex level (0.128 ppb) exceeded themirex level (0.082 ppb). It is important to note thattwelve (12) of the twenty (20) samples from this study hadreported photomirex concentrations that were not-detected,equal to the quantitation limit, or below the quantitationlimit. Therefore, it appears that photomirex levels withinthe study area are generally less significant andsubstantially below those reported for mirex.

As discussed in the approved Plan of Action, the estimatesof photomirex concentrations will not undergo a formal datavalidation since such a validation would confirm that most,if not all, of the photomirex concentrations areapproximate or qualitative values. In accordance with theapproved Plan of Action, the photomirex concentrationspresented herein will be incorporated into the FinalRemedial Investigation Report on a qualitative basis.

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SMC Environmental Services GroupA Subsidiary of Science Management Corporation

August 25, 1992Ref: 9723-92003 (3.3)Mr. David ByroUSEPA. Region IIIPage Three

If you should have any questions or comments regarding thismatter, please feel free to contact Ms. Tamara Royer atRuetgers-Nease.

Sincerely,

SMC ENVIRONMENTAL SERVICES GROUP

RI/FS ''Project Manager

JKW/jkw:rmEnclosures9723:JWL15J.WP

cc: Douglas Overdorff/PaDERTamara Royer/RNCCFrank Marrazz a/Environ

flR303799

TABLE 1

REPRESENTATIVE SAMPLES FOR PHOTOMIREX RETRIEVAL

RUETGERS-NEASE CHEMICAL COMPANY, INCSTATE COLLEGE, PA

REMEDIAL INVESTIGATION

Sample ID Matrix Location

SEDl Sediment Benner Spring/Spring Creek

SED4 Sediment Thornton Spring/Spring Creek

SW4 Surface water Thornton Spring/Spring Creek

SED5 Sediment Thornton Spring/Spring Creek

SW5 Surface water Thornton Spring/Spring Creek

SS9 Surface Soil Ground Water Treatment Bldg._ SS6 Surface Soil Building 3•m SB8-B Soil Designated Outdoor Storage

SB12 Soil Designated Outdoor StorageI S B 1 - A Soil Former Temporary Drum

Repackaging AreaSB1-B Soil Former Temporary Drum

• R e p a c k a g i n g AreaSB9-A Soil North of Building 1SB4-C Soil Tank FarmSB15-B Soil Southwest of Building 9

•^^ MW-9D Ground Water North of Concrete Pondfl) MW-23S Ground Water East of Building 1

1^^ MW-30S Ground Water Former Amesite LagoonMW-37S Ground Water Abramson's

. F1L Fish Tissue Thornton Spring• F2U Fish Tissue Houserville Park

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TABLE 3

COMPARISON OF CALCULATED LEVELS VERSUS REPORTED MIREX LEVELS

RUETGERS-NEASE CHEMICAL COMPANY, INCSTATE COLLEGE, PA

REMEDIAL INVESTIGATION

PhotomirexConcentrations

Estimated Reported as aPhotomirex Mirex percentage ofConcentrations Concentrations Mirex

Sample ID Matrix (ppb)____ (ppb)____ Concentrations

SED1 Sediment ND* 36.9 J 0%

SED4 Sediment 10 J 626 1.6%

SW4 Surface water ND 0.0082 0%

SED5 Sediment 580* 6240* 9.3%

SW5 Surface water 0.0190 J 0.0452 42%

SS9 Surface Soil 170 J* 4240* 4%SS6 Surface Soil 560 J 4770* 12%

SB8-B Soil 270 J* 42300 J* 0.6%SB12 Soil 19J* 2320 J* 0.8%SB1-A Soil ND 6.83 J* 0%SB1-B Soil ND* 3540* 0%SB9-A Soil 0.481 J 118 0.4%SB4-C Soil 7.5J* 211* 3.6%SB15-B Soil 38.7 J* 3120* 1.2%

MW-9D Ground Water 0.0147 J 0.285 5.2%MW-23S Ground Water 15.3 J* 1140* 1.3%MW-30S Ground Water 0.0218 J 0.0284 77%

MW-37S Ground Water 0.128 J 0.082 156%

F1L Fish Tissue 0.019 J 110 0.02%F2U Fish Tissue 15.9 J 170 9.4%

Notes: J - Quantitation is approximate* - Reported from a Dilution Analysis

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flR303802

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ATTACHMENT A

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Environmental Standards, Inc.Specialists in Environmental Risk Assessment and Data Validation

The Commons at Valley Forge, Unit 4, 1220 Valley Forge Rd.P.O. Box 911, Valley Forge, PA 19481 (215) 935-5577

August 5, 1992

Mr. JeffWalshSMC Environmental Services Group501 AUendale RoadKing of Prussia, PA 19406

Dear Mr. Walsh:

Based upon a review of the data you provided for the Ruetgers-Nease State College site, theconcentration of photomirex in the samples listed in Table 1 has been calculated. The reportedanalytical results are presented as a summary of the data in Attachment 1. Documentation ofthe reviewer's calculations may be found in Attachment 2.

TABLE 1

SAMPLES FOR WfflCH PHOTOMIREX

CONCENTRATIONS WERE CALCULATED

SMC EnvironmentalServices GroupSample Number* Laboratory Sample Number Date of Sample Collection**

SED1 007978-0001 1/7/91SED4 007978-0004 1/7/91SW4 007980-0004 1/7/91

SED5 007978-0005 1/7/91SW5 007980-0005 1/7/91SS9 010560-0003 11/19/91SS6 007977-0003 1/8/91

TABLE 1 (Cont.) -page 2

SMC EnvironmentalServices GroupSample Number* Laboratory Sample Number Date of Sample Collection**

SB8-B 007983-0002 1/9/91SB12 010642-0004 11/26/91SB1-A 008208-0008 2/8/91SB1-B 008208-0007 2/8/91SB4-C 008208-0003 2/18/91MW-9D 008545-0001 3/13/91MW-23S 008551-0005 3/14/91MW-30S 008569-0001 3/15/91MW-37S 011520-0002 3/18/92

F1L 007838-0006 12/11/90F2U 007838-0003 12/11/90

SB15-B 010692-0002 12/5/91SB9-A 010692-0003 12/5/91

NOTES:

* Sample Numbers as listed on Table 1 of SMC Environmental Services Groupletter dated 7/15/92.

** Dates as reported on the Form I's.

To confidently use any of the analytical results from the data sets examined, the data usersshould understand the limitations of the results. Qualitative reliability of the reportedconcentrations were not assessed. The samples were not examined for application of possibleblank contamination, for matrix spike recoveries (if applicable at all), for GC/MS tuning andfor calibrations. In addition, the majority of the reported concentrations for photomirex shouldbe considered estimated and has been flagged "J" on the data table (Attachment 1) for thefollowing reasons.

The concentrations of photomirex in samples SB15-B, SB9-A, SS9, SB12, MW-9D,MW-23S, MW-30S and MW-37S were calculated from areas from extracted ion currentprofiles (EICPs) taken over a range of 20-30 scan numbers. In addition, becauseresponse factors for photomirex were not provided, the response factors for mirex wereused in the calculation of photomirex.

Environmental Standards, Inc.

I• -page 3

I The relative ion abundance ratio for the two most abundant ions in the clusters used forquantitation of photomirex in samples MW-23S, F2U, SB9-A and SB8-B exceeded the20% control limit in these samples.

I The percent solid for sample SED4 was reported on the Form I to be 43 %.

I The concentration of photomirex was below the reporting limit in samples SED4SS9, SS6, SB8-B, SB12, SB4-C, MW-9D, MW-30S, SB15-B, SB9-A and F2U.

I It should be noted that no peaks were observed for photomirex in samples SED1, SW4, SB1-A,SB1-B and F1L. However, samples SED1 and SBl-B were reported from 10-fold and 50-fold

• dilution analyses, respectively.

Furthermore, the reported positive results for photomirex in samples SB15-B, SED4, SED5,SW5, SS9, SS6, SB8-B, SB12, SBl-B, SB4-C and MW-23S were reported from dilutionanalyses. The reported results for photomirex in these samples have been flagged "*" on the

_ data table.

Finally, according to a handwritten note on the quantitation report provided for samples SS6 and« SB9-A, not all of the specified ions were observed in the ETCP for photomirex in this sample.

If you have any questions/comments, please feel free to call.

ISincerely,

I. Formarf

Senior Quality Assurance Chemist

1 RLF:ko

IIII• flRlD^Rnfi ^nv'ronmental Standards, Inc.

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