ORIGINAL

i SDMS DocID

Trip Report - October 2007 Sediment Sampling

Event

Fairmont Coke/Sharon Steel Site

Fairmont, WV

TDD No: W23-014-07-07-002

Contract: EP-S3-05-03

February 11,2008

TechLaw Q u a l i t y & I n t e g r i t y

EPA Region III START III- West

Superfund Technical Assessment and Response Team - West

Submitted To: Eric Newman, Remedial Project Manager

United States Environmental Protection Agency, Region III

1650 Arch Street

Philadelphia, PA 19103-2029

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Trip Report EPA/START Sampling Event - October 24,2007

Fairmont Coke/Sharon Steel Site

Prepared by TechLaw, Inc.

131 Peninsula Street, Suite B Wheeling, WV 26003

TDD No.: W23-014-07-07-002 TechLaw, Inc. Job No.: 03020.2.014.002.000.21.BB.036E

EPA Contract No.: EP-S3-05-03 February 4,2008

APPROVALS

Name Title Signature Date Joe Carter START Project Manager /i /o<f

Ofine Nanrp START OP OfR^r /Qa—*

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TABLE OF CONTENTS

Section Page

1.0 INTRODUCTION 1

2.0 BACKGROUND . 1

3.0 SAMPLING ACTIVITIES .'. ! 2 3.1 Site Conditions and Observations 2 3.2 Sampling Activity 2

4.0 ANALYTICAL RESULTS 3 4.1 Sample Results 4

4.1.1 Volatile Organic Compounds 4 4.1.2 Semivolatile Organic Compounds 4 4.1.3 Pesticides 5 4.1.4 Polychlorinated Biphenyls 5 4.1.5 Inorganic Analytes 6

5.0 CONCLUSION 6

Figures Figure 1 - October 2007 Sediment Sample Location Map

Attachments Attachment 1 - Photos Attachment 2 - Data Validation Packages

1) Organic 2) Inorganic

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1.0 INTRODUCTION

On September 27, 2006, through Technical Direction Document (TDD) W13-008-06-09-005, U.S. Environmental Protection Agency (EPA) Region HI Work Assignment Manager/Remedial Project Manager (RPM) Eric Newman directed the Superfund Technical Assessment and Response Team - West contractor (START), TechLaw, Inc., (TechLaw) to provide technical support at the Fairmont Coke/Sharon Steel site (Site), located in Fairmont, Marion County, West Virginia. The current activities were conducted under TDD W23-014-07-07-002, issued on July 1, 2007, to continue technical support activities into the new contract year. This report summarizes the sediment sampling activities on the unnamed tributary conducted on October 24, 2007 and the results from laboratory analyses.

2.0 BACKGROUND

The Fairmont Coke/Sharon Steel Site is undergoing cleanup by ExxonMobil under administrative order by consent and through Project XL. Principal contaminants at the Site were derived from the historical 60-oven by-product coke plant. The nature of the coking business was to buy, sell, and process coal; to carbonize coal, and to produce products and by-products of carbonization. These by-products included coal tar, phenol, ammonium sulfate, benzene, toluene, xylene, and coke oven gas. Currently, landfills and process areas at the site are in various stages of assessment and cleanup. Management of surface waters include control of run-on and run-off water via containment ponds and treatment via a waste water treatment plant (WTP) located on the Site at the head of the unnamed tributary. The unnamed tributary flows east to west and is a tributary of the Monongahela River (see Figure 1). The unnamed tributary, receives runoff from Site areas designated as clean and from off-site uplands bordering the Site. Upgradient, the unnamed tributary splits into two branches, a north and south branch, that receive surface water from the on-site north clean ditch and on-site south clean ditch of the Site, respectively. The south clean ditch also receives effluent from the WTP. The WTP is used to treat runoff from contaminated areas of the Fairmont Coke/Sharon Steel Site. The effluent is tested monthly to determine compliance with the Site National Pollution Discharge Elimination System (NPDES) permit. The Site has an extensive regulatory history that is documented in other Site documents that may be found in the Site files.

The Big Johns Salvage Superfund Site is an active site located adjacent to and northwest of the Fairmont Coke/Sharon Steel Site. The Big Johns Site borders the right descending bank of the unnamed tributary and runoff from the Site also enters the tributary. The primary contaminants at the Site involve coal tar and coal tar derivatives and lead and arsenic from glass cullet. The Big Johns Site previously underwent EPA removal actions and is currently in the stages of risk assessment and remediation. A water collection and treatment facility continues to be managed at the Big Johns Site. During the time of this sampling event, the unnamed tributary pond sediments were being dewatered by the U.S. Army Corps of Engineers and consolidated in a Site area located above the right descending bank of the unnamed tributary. The Big Johns Site also has an extensive history that is documented in other Site documents that may be found in the Site files.

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3.0 SAMPLING ACTIVITIES

On October 24, 2007, two START members accompanied by West Virginia Division of Environmental Protection (WVDEP) Inspector Tom Bass, and ExxonMobil contractor Camp Dresser & McGee (CDM) Project Manager (PM) Wendell Bamer, collected five sediment samples from the unnamed tributary located west and downgradient of the Fairmont Coke/Sharon Steel site. The purpose of the sampling was to collect characterization samples and obtain data in relation to the Fairmont Coke/Sharon Steel and Big John's Salvage Sites' impact on the stream sediments. The sampling was conducted in accordance with the TechLaw, Inc., Sampling QA/QC Work Plan for the Fairmont Coke/Sharon Steel site dated March 15, 2007.

3.1 Site Conditions and Observations

Weather conditions were inclement with steady rain and cool temperatures during the sampling event. Weather recorded in Clarksburg, WV during October 24, 2007 was overcast skies with extended periods of rain. Precipitation was measured at 0.88 inches during the 24 hour period. Temperatures dropped throughout the day from 60 to 50 °F. Winds were out of the north at up to 13 miles per hour (mph) ("http://www.weatherunderground.com/). The rain induced a good flow of water throughout the length of the unnamed tributary including its branches.

3.2 Sampling Activity

On October 23, 2007, two START members mobilized to the Site and met with WVDEP (Bass) and CDM (Barner). START and WVDEP conducted a walkthrough of the tributary and identified four sediment sampling locations and marked them with flags. The locations included the sediment pond, mid-tributary, south clean ditch and the north clean ditch. All sampling points were located west of the Fairmont Coke/Sharon Steel fence line.

On October 24, 2007, START, WVDEP (Bass) and CDM (Barner) collected four field samples and a duplicate sample from the flagged locations, and a trip blank (CATB-08). Samples were collected in sequence from downgradient to upgradient locations using dedicated tools. Logbook documentation, photographs, and global positioning system (GPS) coordinates were collected by START at each location. Figure 1 - Sediment Sample Location map shows sample locations and also tabulates a few of the more prevalent compounds found in each sample for comparison purposes. Listed below are the CLP sample Nos., sample identification, location description, latitude and longitude of the sample points.

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CLP Sample No. Sample ID Location Latitude Longitude

MC02K2 TRB-SD33 Tributary Pond N. 39.49730 W. 80.12411

MC02K3 TRB-SD34 DupeofSD33 N. 39.49730 W. 80.12411

MC02K4 TRB-SD35 Mid Tributary N. 39.49718 W. 80.12220

MC02K5 ' TRB-SD36 South Branch N. 39.49658 W. 80.12052

MC02K6 TRB-SD37 North Branch N. 39.49712 W. 80.11992

Samples TRB-SD33 and TRB-SD34 (duplicate) were collected from the unnamed tributary sediment pond. The sediments in the pond were being removed via excavator and placed in a constructed dewatering pond located on the ponds upstream border. The operator scooped a bucket of sediment from the middle of the dewatering pond and START collected the duplicate sample pair from the sediments in the bucket (Attachment 1 - Photographs, Photo IMG 0339).

Sample TRB-SD35 was collected by START from a sediment point located midway along the length of the tributary. The location was approximately 50 feet upgradient of survey stake F+88.05. (Attachment 1 - Photographs, Photo IMG_0342). Coal tar was visible along the right descending bank at the water line and on the rocks in the stream. A sheen appeared on the water when the sediments were disturbed during the sampling process. .

Sample TRB-SD36 was collected from the south clean ditch sediments at a location down gradient from the fence line that separates the Fairmont Coke/Sharon Steel and Big Johns sites (Attachment 1 - Photographs, Photo IMG 0344).

Sample TRB-SD37 was collected from the north clean ditch sediments at a location approximately 75'-100' down gradient from the fence line that separates the Fairmont Coke/Sharon Steel and Big Johns sites (Attachment 1 - Photographss, Photo IMG 0345).

4.0 ANALYTICAL RESULTS i

A total of five sediment samples and a trip blank were collected and shipped to Contract Laboratory Program (CLP) laboratories Shealy Environmental for organic analyses and Datachem Laboratories for inorganics analyses. The samples were analyzed for volatile organic compounds (VOC), semivolatile organic compounds (SVOC) plus pyridine, pesticides (PEST), and poly chlorinated biphenyls (PCB) according to CLP Statement of Work (SOW) SOM01.2. (and Modified Analysis (M.A.) 1432.2 for pyridine). Samples were analyzed for total metals, mercury and cyanide according to CLP SOW ILM05.4. Data validation was performed by Lockheed Martin Enterprise Solutions & Services under the Environmental Services Assistance Team (ESAT) Region 3 contract. Validated data packages were received by November 30, 2007 and are provided as Attachment 2.

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4.1 Sample Results

4.1.1 Volatile Organic Compounds

Acetone, methyl ethyl ketone (2-butanone), tetrachloroethene, o-xylene, and m,p-xylenes constituted the only VOCs detected in the sediment samples among the target compounds. With the exception of methylene chloride which was qualified "B" and detected in all samples as well as in the blank at similar low levels, all VOC detections were qualified as estimated (J). All detections except acetone were at concentrations below the Contract Required Quantitation Limits (CRQL).

Other observations include the presence of tetrachloroethene (PCE) only in the tributary pond samples (TRB-SD33 and duplicate TRB-SD34) and the presence of xylenes only in the mid tributary sample (TRB-SD35). The tetrachloroethene and xylenes detections were below the CRQL of 5 pg/Kg. Acetone was the only VOC detected in all five samples, and of those, only the samples from the tributary pond showed detections slightly above the CRQL of 10 pg/Kg.

4.1.2 Semivolatile Organic Compounds

Semi-volatile organic compounds detected in the tributary sediment samples and their respective range of concentrations are as follows:

SVOC Concentration SVOC Concentration Range (pg/Kg) Range (pg/Kg)

Dibenzofuran ND - 4,200 Di-n-octylphthalate ND - 62 J

Diethylphthalate ND - 170 J Benzo[b]fluoranthene 140 J - 13,000

Fluorene ND - 6,800 Benzo[k]fluoranthene 64 J - 5,500

Phenanthrene 84 J - 17,000 Benzo[a]pyrene 110 J - 9,700

Anthracene 27 J - 8,300 Indeno[l ,2,3-c,d]pyrene 75 J - 5,400

Carbazole ND - 3,100 Dibenzo[a,h]anthracene ND - 220 J

Fluoranthene 200 J - 25,000 Benzo(g,h,i)perylene ND - 3,700 J

Pyrene 130 J - 18,000 Naphthalene 67 J - 3,000

Butylbenzylphthalate ND - 330 J 2-Methylnaphthalene ND - 2,000

Benzo[a]anthracene ND - 11,000 1,1-Biphenyl ND - 960 J

Chrysene 90 J - 11,000 Acenaphthylene ND - 800 J

Bis(2-ethylhexyl)phthalate ND - 160 J Acenaphthene ND - 4,500

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A total of twenty-four SVOC compounds were detected in the tributary sediment samples. Dibutylphthalate is not listed above because it was qualified "B", indicating that the detections were likely due to laboratory or sampling-related contamination. The SVOC data indicate significant detections of polycyclic aromatic hydrocarbons (PAHs) as would be expected because of the historical presence of coal tar and its derivatives at the nearby Fairmont Coke/Sharon Steel and Big Johns sites.

Figure 1- Sediment Sample Location Map, lists the more-prevalent compounds detected in each of the samples. The compounds include benzo(a)pyrene [B(a)P] and five of the six PAH equivalents for which performance standards have been applied at the Fairmont Coke/Sharon Steel Site. Naphthalene, dibenzofuran, fluoranthene, and pyrene are also included on the map because they were detected at similar concentrations. Dibenzo(a,h)anthracene, one of the B(a)P equivalents, was only detected in one sample and is not listed on Figure 1.

Comparison of data relative to sample locations in the tributary (Figure 1) indicates that significantly lower concentrations of SVOCs are in the upstream sediments (samples TRB-SD36 and TRB-SD37) relative to the mid tributary (TRB-SD35) and downstream sediments (TRB-SD33, TRB-SD34). The south branch (TRB-SD36) contains considerably lower SVOC concentrations than the north branch (TRB-SD37). The middle tributary (TRB-SD35) and the pond sediments (TRB-SD33,TRB-SD34) contain relatively similar concentrations of SVOCs. Slight differences between the two are that the pond sediments contain slightly higher concentrations of B(a)P and its equivalents, and the middle tributary sediments contain slightly higher concentrations of the other SVOCs detected (e.g. dibenzofuran, fluorene, naphthalene, etc.).

4.1.3 Pesticides

Sediment samples contained low level pesticide concentrations mostly near or below the CRQLs (1.7 or 3.3 pg/Kg). Nearly all of the detections were qualified as estimated (J), or qualified as not significantly above levels reported in laboratory or field blanks (B). Endosulfan I was detected at 4.4 pg/Kg in the pond sediment sample and was the only unqualified pesticide detection (CRQL=1.7 pg/Kg). Endosulfan I, endrin, alpha-chlordane, and gamma chlordane (qualified "B") were the only pesticide compounds detected above the CRQL. No obvious trends in the pesticide data were observed.

4.1.4 Polychlorinated Biphenyls

Aroclor-1254 and Aroclor-1262 were detected in the pond sediment duplicate samples at a concentration of 120 - 130 pg/Kg. These were the only PCB detections reported.

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4.1.5 Inorganic Analytes

Sediment samples were analyzed for total TAL metals, including mercury and cyanide. The data indicate that most of the target inorganic analytes were detected in the samples, but at low concentrations. Observations of trends in the inorganic data indicate that relatively higher detections were found in the pond sediments and relatively lower concentrations were found in the middle tributary and south branch samples. The middle tributary and the south branch samples have similar concentrations for many of the analytes. The north branch of the unnamed tributary contained the second highest inorganic concentrations of the four sampling locations.

5.0 CONCLUSION

Review of the data indicates that semivolatile compounds constituted the majority of detections of significance. This is consistent with respect to the presence of coal tar contamination at both sites and the potential for contaminant transport to the stream via run off. With a few exceptions, the majority of detections of VOC, PEST, and PCB compounds were non-detected or of low concentrations, largely qualified, and often near or below the (CRQL). In addition, inorganic contaminant concentrations in the sediments were generally below levels of concern.

Overall, the SVOC data provide a general sense of contamination gradient within the unnamed tributary sediments. The south branch of the unnamed tributary contained the fewest SVOC compounds and the lowest concentrations. The north branch sample contained more SVOCs at somewhat higher concentrations than the south branch sample. Downstream, the mid tributary and pond sediments contained higher concentrations of SVOCs than the upstream samples.

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o X

Result (ug/kg) 1,700

Sample No. TRB-SD34

Result (ug/kg) Qualifier I Parameter Result (ug/kg) Qualifier! Naphthalene I Sample No. Result (ug/kg) Qualifier I

Naphthalene Benzo(a)pyrene ITRB-SD37 Naphthalene Benzo(a)pyrene TRB-SD34 Benzo(a)anthracene ITRB-SD37 Benzo(a)pyrene Benzo(a)anthracene Chrysene TRB-SD37 Benzo(a)anthracene

Benzo(b)fluoranthene TRB-SD37 Chrysene Benzo(b)fluoranthene TRB-SD34

TRB-SD34 Benzo(k)fluoranthene TRB-SD37 Benzo(b)1luoranthene

TRB-SD37 Benzo(k)1luoranthene TRB-SD37 lndeno(1.2,3-cd)pyrene

Benz o(k)fluorant hene lndeno( 1,2,3-cd )py rene lndeno( 1,2,3-cd )py rene TRB-SD34 Dibenzofuran Dibenzofuran Fluoranthene TRB-SD37 Dibenzofuran Fluoranthene TRB-SD37 Fluoranthene Pyrene TRB-SD37 Pyrene

[Sample No. •TRB-SD36 Naphthalene •TRB-SD36 Benzo(a)pyrene •TRB-SD36 Benzo(a)anthracene

ITRB-SD36 Chrysene TRB-SD36 Benz o(b)fluorant hene TRB-SD36 Benzo(k)lluoranthene TRB-SD36 lndeno(1,2,3-cd)pyrene TRB-SD36 Dibenzofuran

TRB-SD36 Pyrene

EG TechLaw Q u a l i t y & I n t e g r i t y

TDD No. W23-014-07-07-002 START Contract No. EP-S3-05-03

Fairmont Coke/Sharon Steel Site Figure 1 - October 2007 Sediment Sample Location Map

Map By: SG Date Modified: 1/25/2008

Scale: 1:3,564

Source: Aerial photograph procured from West Virginia State GIS Technical Center. Aerial Photo N-J09-20 flown in spring of 2003 by WVSAMB. Sample locations were recorded using a handheld GPS Garmin Plus III unit. The accuracy of the GPS unit may be poor near steep terrain subsequently, some displayed locations may have been modified to reflect actual sample locations.

• Sample No. Parameter 1TRB-SD33 Naphthalene •TRB-SD33 Benzo(a)pyrene ITRB-SD33 Benzo(a)anthracene •TRB-SD33 Chrysene •TRB-SD33 Benzo(b)lluoranthene •TRB-SD33 Benzo(k)1luoranthene •TRB-SD33 lndeno(1,2,3-cd)pyrene •TRB-SD33 Dibenzofuran •TRB-SD33 Fluoranthene •TRB-SD33 Pyrene

v BW

'4

Legend Oct 2007 Sediment Samples

20 ft contours

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ATTACHMENT 1

PHOTOS

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IMG_0339.jpg IMG_0342.jpg

IMG_0344.jpg IMG_0345.jpg

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ATTACHMENT 2

DATA VALIDATION PACKAGES

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DATE :

SUBJECT:

FROM :

TO :

Attached is the organic data validation report for the Sharon Steel Corp/Fairmount Coke Works site (Case#: 36860, C02K1) completed by the Region III Environmental Services Assistance Team (ESAT) contractor under the direction of Region III EAID.

If you have any questions regarding this review, please call me at (410)' 305-2743 .

Attachment

cc: Gene Nance (TECH LAW)

TO File: 0007 TDF# 1137

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III

ENVIRONMENTAL SCIENCE CENTER 701 MAPES ROAD

FORT MEADE, MARYLAND 20755-5350

November 29, 2007

Region III Data QA Review

Khim-Cho Thaung Region III ESAT RPO (3EA20)

Eric Newman Regional Program Manager (3HS23)

OFFICE OF ANALYTICAL SERVICES AND QUALITY ASSURANCE

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Lockheed Martin Enterprise Solutions & Services ESAT Region 3 US EPA Environmental Science Center 701 Mapes Road Ft. Meade, MD 20755-5350 Telephone 410-305-3037 Facsimile 410-305-3597 M A R T S ®

We never forget who we 're working for"'

DATE: November 26, 2007

SUBJECT: Organic Data Validation (Level M3) Site: Sharon Steel Case: 36860 SDG: C02K1

FROM: Kenneth W. Curry Senior Data Reviewer ^

Mahboobeh Mecanic Senior Oversight Chemist

TO: Khin-Cho Thaung ESAT Region 3 Project Officer

OVERVIEW

Case 36860, Sample Delivery Group (SDG) C02K1, from the Sharon Steel site consisted of five (5) soil samples analyzed for volatile, semivolatile, pesticide and Aroclor compounds and one (1) aqueous trip blank that was analyzed for volatile compounds only. In addition, semivolatile compound pyridine was analyzed through the flex clause. All samples were analyzed by Shealy Environmental Services (SHEALY). The sample set included one (1) field duplicate pair. Samples were analyzed according to Contract Laboratory Program (CLP) Statement of Work (SOW) SOMO 1.1 through the Routine Analysis Services (RAS) program.

SUMMARY

Data were validated according to Region III Modifications to the National Functional Guidelines for Organic Data Review, Level M3. Areas of concern with respect to data usability are listed below.

Samples C02K2 and C02K3 reported positive results for Aroclor-1254 and Aroclor-1260. In pesticide/PCB analyses, where multi-component compounds are present, false positives for single component compounds are common. Caution should be exercised in interpreting positive pesticide results in these samples.

MAJOR PROBLEMS

• The Response Factor (RF) was less than 0.005 for 1,4-dioxane in the volatile initial and continuing calibrations. No positive results were reported for this compound. The quantitation limit for this compound in all volatile samples was rejected and qualified "R" on the Data Summary Forms (DSFs).

• In the pesticide analyses, recovery of surrogate Decachlorobiphenyl (DCB) was less than ten percent (<10%) on one (1) column in sample C02K5. The "L" qualifier for positive results in this sample has been superseded by "J" or "B". Quantitation limits in this sample were rejected and qualified "R" on the DSFs.

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MINOR PROBLEMS

• In the volatile analyses, recovery of Deuterated Monitoring Compound (DMC) 1 „2-dichloroethane-d4 was outside the lower control limit in samples C02K3, C02K4 and C02K6. The "L" qualifier for positive results for compounds associated with this DMC was superseded by "B". Quantitation limits associated with this DMC in these sample were qualified "UL" on the DSFs.

• Several compounds failed precision criteria [Percent Relative Standard Deviation (%RSD) and/or Percent Difference (%D)] in the volatile and semivolatile initial and/or continuing calibrations. Positive results for these compounds in affected samples were qualified "J". Quantitation limits for compounds that had imprecisions greater than fifty percent (>50%) were qualified "UJ" on the DSFs.

• In the semivolatile analyses, the Internal Standard (IS) area count for IS perylene-dl2 was outside the lower control limit in sample C02K6. This sample was re-analyzed with similar results. The results from the initial analysis were reported by the reviewer and results associated with this IS were qualified 'T'on the DSF .

• In the pesticide analyses, recoveries of surrogate DCB were outside the upper control limits on both columns in sample C02K4. Positive results in this sample were qualified "J" unless superseded by "B" on the DSF.

• Pesticide compounds with %Ds greater than twenty-five percent (>25%) between the two (2) analytical columns were qualified "J" on the DSFs unless superseded by "B".

NOTES

• Concentrations of compounds found in the analyses of the field, method and storage blanks associated with these samples are listed below. Only compounds used to qualify data are listed. Samples with concentrations of common laboratory contaminants* less than ten times (<10X) the blank concentration or with concentrations of other contaminants less than five times (<5X) the blank concentration have been qualified "B" on the DSFs.

Blank Storage (VHBLK12)

Method (VBLK31)

Method (SBLK75)

Method (PBLK73)

Compound methylene chloride*

methylene chloride*

di-n-butylphthalate*

4,4-DDT

endrin aldehyde

gamma chlordane

* = Common Laboratory Contaminate

Concentration Affected Samples 1.0 J pg/Kg C02K2, C02K3, C02K4,

C02K.5, C02K6

1.1 J pg/L C02K1

34 J pg/Kg C02K2, C02K5, C02K.6

9.3 J pg/Kg C02K2, C02K3, C02K4, C02K5, C02K.6

0.29 J pg/Kg C02K2, C02K3, C02K4, C02K5, C02K6

0.95 J pg/Kg C02K2, C02K3, C02K4

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The laboratory spectra for cis-l,3-dichloropropene and trans-l,3-dichloropropene in volatile sample C02K2 were not conclusive. The spectra presented by the laboratory appeared to be that of DMC trans-l,3-dichloropropene-d4. The positive results for these compounds were deleted from the Form I and reported as non-detected on the DSF by the reviewer.

Compounds detected below Contract Required Quantitation Limits (CRQLs) were qualified "J" on the DSFs unless supersede by "B".

In the pesticide analyses, recoveries of surrogate DCB was outside the upper control limit on one (1) column in samples C02K2MS, C02K2 and C02K3 and recovery of surrogate DCB was outside the upper control limits on both columns in sample C02K2MSD. No data were qualified based these findings.

Tentatively Identified Compounds (TICs) were reviewed during data validation. TICs identified as the same compound at different retention times were changed to "unknowns" by the reviewer on the TIC Form Is. Compounds identified as target compounds, aldol condensate products or blank contaminants were crossed-off the TIC Form Is by the. reviewer. TIC Form Is for samples in which TICs were identified are included in Appendix

All pesticide and Aroclor Matrix Spike/Matrix Spike Duplicate (MS/MSD) and Laboratory Control Sample (LCS) recoveries were within control limits.

Non-spiked compounds were detected in the pesticide and Aroclor analyses of sample C02K2 and the MS/MSD analyses of this sample. Results and precision estimates are as follows:

E.

Concentration pg/Kg Compound alpha-BHC beta-BHC delta-BHC

C02K2 MS MSP

1.2 J ' 2.6 J ND 0.22 J 0.94 J 0.82 0.96 J 0.35 J 1.7 4.4 0.47 J 0.19 2.1 J 1.4 J 11 0.23 J 0.26 J 0.43 0.83 J 1.4 J 1.7 3.6 J 3.0 J 3.8 12 J 12 J 29 1.6 J 2.3 J 2.1 0.56 J 0.60 J 0.83

1.3 J 0.82 J 1.3 J %RSD

24 74* 58 67

140 111 35 34 12 56 18 22

heptachlor epoxide endosulfan I 4,4'-DDE endosulfan II 4,4-DDD endosulfan sulfate methoxychlor endrin ketone alpha-chlordane

Aroclor-1254 130 260 240 33

%RSD = Percent Relative Standard Deviation * = Percent Difference (%D) instead of %RSD ND = Not detected

Based on sample screening, semivolatile samples C02K2, C02K3 and C02K4 were initially analyzed at five fold (5X) dilutions. The CRQLs are elevated in these samples due to these dilutions.

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• Semivolatile sample C02K4 was re-analyzed at ten fold (1 OX) dilution because the detected concentration of fluoranthene and pyrene exceeded the linear calibration range in the initial analysis. The positive results for these two (2) compounds in this sample were reported from the ten fold (10X) dilution by the reviewer and annotated with a "+" on the DSF.

• Results for field duplicate pair, sample pair C02K2/C02K3, were comparable except for several compounds in the semivolatile and pesticide analyses.

• Volatile soil samples were collected utilizing Encore samplers. The samples were transferred and placed in a freezer upon sample receipt until sample analysis by the laboratory.

• Sample weights other than five (5) grams in the volatile analyses and other than thirty (30) grams in the semivolatile, pesticide and Aroclor analyses were used in analyses of soil samples associated with this case. The dilution factors reported on the DSFs reflect actual sample weights analyzed.

• All soil samples were collected 10/24/07 and extracted for Aroclor compounds 11/01/07. Although no technical holding time has been established for non-aqueous samples, the technical holding time of seven (7) days for aqueous samples has been exceeded by one (1) day. Due to the stability of Aroclor compounds in the soil matrix, no data were qualified based on this holding time infraction.

All data for Case 36860, SDG C02K1, were reviewed in accordance with Region III Modifications to the National Functional Guidelines for Organic Data Review, September 1994.

ATTACHMENTS — — s

1) Appendix A - Glossary of Data Qualifiers 2) Appendix B - Data Summary Forms 3) Appendix C - Chain of Custody (COC) Records 4) Appendix D - Laboratory Case Narrative 5) Appendix E - Tentatively Identified Compounds (TICs)

DCN: 36860M3

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Appendix A

Glossary of Data Qualifiers

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