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HomeMy WebLinkAboutWell Inspection 143 Oakland Road r y ` * Groundwater L. & Environmental Services, Inc. 425B Hayden Station Road Windsor, CT 06095 • Tel(860)688-9023 Fax(860)688-9278 October 7, 2008 Ms.Melissa Barton 143 Oakland Road South Windsor, CT 06074 Re: Potable Well Sampling Information 143 Oakland Road South Windsor, CT 06074 Dear Ms.Barton, On behalf of ExxonMobil Oil Corporation, Groundwater and Environmental Services (GES), ExxonMobil's consultant, would like to thank you for allowing GES to conduct sampling of your drinking water well on August 11,2008. The water sample from your well was tested for the presence of a number of volatile organic compounds found in gasoline, including methyl tertiary butyl ether(MTBE). The tests were conducted utilizing Environmental Protection Agency(EPA)approved methods and a copy of the laboratory report is enclosed. The laboratory results indicate no presence of MTBE or any other gasoline compound in your well water. However, the laboratory results indicate that chloromethane was detected in your drinking water at a concentration of 1.1 parts per billion(ppb). No drinking water criteria has been established for this compound, however;the Connecticut Groundwater Protection Criteria for this compound is 2.7 ppb As you know, the tests conducted on your drinking water well are part of an ongoing groundwater investigation being conducted in cooperation with the Connecticut Department of the Environmental Protection (CT DEP). Please note; the sampling frequency of your well, as requested by the CT DEP, is quarterly. Therefore,the next sampling event is scheduled for November 2008. Again,thank you for your patience and cooperation. If you have any questions regarding the test results or the investigation in the area, please feel free to call the toll free ExxonMobil Information Line at 1-877-346-0302 or, if you prefer,we suggest you contact Kevin Neary with the CT DEP at 860-424-3947 or Robert DeVito,the Environmental Health Officer for the Town of South Windsor,at 860-644-2511 ext.248. Sincerely, Matthew R.Duffy Karen L. Harris Staff Environmental Scientist Senior Project Manager Enclosure cc: Kevin Neary-Connecticut Department of the Environmental Protection Robert DeVito-Town of South Windsor C. Fredrick Shaw-Town of South Windsor Jeff Folger-Town of South Windsor Walter Summers -Fire Marshal Town of South Windsor Environmental Solutions and Liability Management r � Autorucated Report New England 7 r ALL 2N rr1 C X9Tn 0$/26/08 Technical Report for ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT PO#4509333735 WBS#08 Accutest Job Number: M76156 Sampling Date: 08/11/08 Report to: Groundwater & Environmental Services kharris@gesonline.com ATTN: Karen Harris Total number of pages in report: 20 ♦N AccpR44�c� a : i '7+1% ' Test results contained within this data package meet the requirements ezaZnd of the National Environmental Laboratory Accreditation Conference Lab Director and/or state specific certification programs as applicable. kY7EA Client Service contact: Kristen Blanchard 508-481-6200 Certifications:MA(M-MA136) CT(PH-0109) NH(2502) RI(00071) ME(MA0136) FL(E87579) R NY(11791) NJ(MA926) PA(68-01121) NC(653) IL(200018) NAVY USACE a a This report shall not be reproduced,except in its entirety,without the written approval of Accutest Laboratories. Test results relate only to samples analyzed. New England • 495 Tech Center West Building I • Marlborough,MA 01752 • tel:508-481-6200 • fax:508-481-7753 • http://www.accutest.com ® 1 of 20 A CUT7E$T. M76166 Sections: ��=�� � �� /u �����U� ��� Contents -u- Section1: Sammplm Summary...~._~~^.~,^.~..~__,~^.~~~~_.~~.._~~.....~~~__~~~~~_~~~~_,,,~~_ 3 N��0 Section 2^ K���� �m0m�x��m �� , znw���u v�xu. �� mmmmmuy.~.~~^.~.....,.,~~~~~~_~~..~.~.,.~~,,~,~~,.,~~ 4 Section3: Sample Results ..............~. � ....... ,^�,~,,~~~~,,,,,,_~~,,,~,. 5 3.D: M76156-1: 143/151, {lAKI.ANDR(}AD ----------------------- 6 Section 4^ �U�m �w�mmm . .~ `~.`..```...~..``.........```....~...,..``...............~..~`~....`.~.....`.~...``.`...`. � 4.1: Chain nf Custody ----------------.------.---------.---. 9 4.2^ I��3» �oroz^ ------------'-----'-----'---'-----'-------- ll ���! ��� 4.3: Sample Tracking Chrooiu}e ---------.--.----.-.----------.---' 12 Section 5^ ���/������mk��� ���� K���� � ���� , _ ``_ �x�mm� .~..^.``~''^..~^^`^```^^^~'``~..~`~~~``~^~'`'^``^~~` 13 5 .K~ ���n����, Suoomury -..-......-...-.---.--..-.-.-.---.-..~.-........-.-......- 14 5 �~ ]�}az��An@_� , - -'-' uuu/o/uzy ...-...--......-..-.-...-...--.......-....--.----..-_-..---. 16 5.3.~ Duplicate_,_ Suuooury .-....-..-.....--..-.-..---...-...--...-..-.-.------...-.- 18 5.4: Surrogate Recovery Summaries ..................................................................................... 20 --156 - U ( 1 Accutest Laboratories Sample Summary ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT Job No: M76156 Project No: PO#4509333735 WBS#08 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID M16156-1 08/11/08 09:53 SEL 08/12/08 DW Drinking Water 143/151 OAKLAND ROAD ® 3of20 GACrt^..Il.!'i'EST, M76156 ,.-It'c r xto::c, L a b o r a t o r- i e s SAMPLE DELIVERY GROUP CASE NARRATIVE Client: ExxonMobil Job No M76156 Site: GESCT:01-QQA 249 Oakland Rd.,South Windsor Cr Report Date 8/26/2008 10:29:41 AM 1 Sample(s),0 Trip Blank(s)and 0 Field Blank(s)were collected on 08/11/2008 and were received at Accutest on 08/12/2008 properly preserved,at 2.3 Deg.C and intact. These Samples received an Accutest job number of M76156.A listing of the Laboratory Sample ID,Client Sample ID and dates of collection are presented in the Results Summary Section of this report. Except as noted below,all method specified calibrations and quality control performance criteria were met for this job.For more information,please refer to QC summary pages. Volatiles by GCMS By Method EPA 524.2 REV 4.1 Matrix AQ Batch ID: MSR240 ■ All samples were analyzed within the recommended method holding time. a All method blanks for this batch meet method specific criteria. . Sample(s) M76131-1DUP were used as the QC samples indicated. The Accutest Laboratories of New England certifies that all analysis were performed within method specification.It is further recommended that this report to be used in its entirety.The Accutest Laboratories of NE,Laboratory Director or assignee as verified by the signature on the cover page has authorized the release of this report(M76156} Tuesday,August 26,2008 Page 1 of 1 4 of 20 BACCUT.I.EBT M76156 I I New England F o ri_aSection IT'S ALL IN THE CHEMtSTAV Sample Results Report of Analysis ® 5 of 20 AMC LJ t"E93T. M757 56 Accutest Laboratories Report of Analysis Page 1 of 2 Client Sample ID: 143/151 OAKLAND ROAD Lab Sample ID: M76156-1 Date Sampled: 08/11/08 Matrix: DW-Drinking Water Date Received: 08/12/08 Method: EPA 524.2 REV 4.1 Percent Solids: n/a Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run#1 R6188.1) 1 08/16/08 AT n/a n/a MSR240 Run#2 Purge Volume Run#1 5.0 ml Run#2 VOA List CAS No. Compound Result MCL RL Units Q 71-43-2 Benzene ND 5.0 0.50 ug/1 108-86-1 Bromobenzene ND 0.50 ug/1 74-97-5 Bromochloromethane ND 0.50 ug/1 75-27-4 Bromodichloromethane ND 0.50 ug/1 75-25-2 Bromoform ND 0.50 ug/1 74-83-9 Bromomethane ND > 0.50 ug/1 104-51-8 n-Butylbenzene ND 0.50 ug/1 135-98-8 sec-Butylbenzene ND 0.50 ug/1 98-06-6 tert-Butylbenzene ND 0.50 ug/1 108-90-7 Chlorobenzene ND 100 0.50 ug/1 75-00-3 Chloroethane ND 0.50 ug/1 67-66-3 Chloroform ND 0.50 ug/1 74-87-3 Chloromethane 11 0.50 ug/l 95-49-8 o-Chlorotoluene ND 0.50 ug/1 106-43-4 p-Chlorotoluene ND 0.50 ug/1 56-23-5 Carbon tetrachloride ND 5.0 0.50 ug/1 75-34-3 1,1-Dichloroethane ND 0.50 ug/1 75-35-4 1,1-Dichloroethylene ND 7.0 0.50 ug/1 563-58-6 1,1-Dichloropropene ND 0.50 ug/1 96-12-8 1,2-Dibromo-3-chloropropane ND 0.20 0.50 ug/I 106-93-4 1,2-Dibromoethane ND 0.050 0.50 ug/I 107-06-2 1,2-Dichloroethane ND 5.0 0.50 ug/1 78-87-5 1,2-Dichloropropane ND 5.0 0.50 ug/1 142-28-9 1,3-Dichloropropane ND 0.50 ug/l 594-20-7 2,2-Dichloropropane ND 0.50 ug/l 124-48-1 Dibromochloromethane ND 0.50 ug/1 74-95-3 Dibromomethane ND 0.50 ug/1 75-71-8 Dichlorodifluoromethane ND 0.50 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/1 541-73-1 m-Dichlorobenzene ND 0.50 ug/1 95-50-1 o-Dichlorobenzene ND 600 0.50 ug/1 106-46-7 p-Dichlorobenzene ND 75 0.50 ug/1 ND = Not detected J = Indicates an estimated value MCL = Maximum Contamination Level (40 CFR 141) B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound ® 6of20 UACCUTE'ST. M76156 :.,. . .s..... , Accutest Laboratories Report of Analysis Page 2 of Client Sample ID: 143/151 OAKLAND ROAD Lab Sample ID: M76156-1 Date Sampled: 08/11/08 Matrix: DW-Drinking Water Date Received: 08/12/08 Method: EPA 524.2 REV 4.1 Percent Solids: n/a Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT VOA List CAS No. _ Compound Result MCL RL Units Q 156-60-5 trans-1,2-Dichloroethylene ND 100 0.50 ug/1 156-59-2 cis-1,2-Dichloroethylene ND 70 0.50 ug/1 10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/1 100-41-4 Ethylbenzene ND 700 0.50 ug/I 87-68-3 Hexachlorobutadiene - ND 0.50 ug/I 98-82-8 Isopropylbenzene ND'- 0.50 ug/1 99-87-6 p-Isopropyltoluene ND! 0.50 ug/1 75-09-2 Methylene chloride ND 5.0 0.50 ug/1 1634-04-4 Methyl Tert Butyl Ether ND 0.50 ug/1 91-20-3 Naphthalene ND 0.50 ug/1 103-65-1 n-Propylbenzene ND 0.50 ug/1 100-42-5 Styrene ND 100 0.50 ug/1 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 ug/1 71-55-6 1,1,1-Trichloroethane ND 200 0.50 ug/1 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/I 79-00-5 1,1,2-Trichloroethane ND- 5.0 0.50 ug/1 87-61-6 1,2,3-Trichlorobenzene ND 0.50 ug/1 96-18-4 1,2,3-Trichloropropane ND. 0.50 ug/1 120-82-1 1,2,4-Trichlorobenzene ND 70 0.50 ug/1 95-63-6 1,2,4-Trimethylbenzene ND 0.50 ug/l 108-67-8 1,3,5-Trimethylbenzene ND 0.50 ug/1 127-18-4 Tetrachloroethylene ND 5.0 0.50 ug/1 108-88-3 Toluene ND 1000 0.50 ug/1 79-01-6 Trichloroethylene ND 5.0 0.50 ug/1 75-69-4 Trichlorofluoromethane ND 0.50 ug/I 75-01-4 Vinyl chloride ND 2.0 0.50 ug/1 m,p-Xylene ND 0.50 ug/1 95-47-6 o-Xylene ND 0.50 ug/1 1330-20-7 Xylenes (total) ND 10000 0.50 ug/1 CAS No. Surrogate Recoveries Run# 1 Run#2 Limits 2199-69-1 1,2-Dichlorobenzene-d4 86% 70-130% 460-00-4 4-Bromofluorobenzene 74% 70-130% ND = Not detected J = Indicates an estimated value MCL = Maximum Contamination Level (40 CFR 141) B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound ® 7 of 20 A 3CE.J TE£'T. M76156 New England ` b o a`.;`'' ` Section 4 'S ALL L-N THE CHEMISTRY Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody • RCP Form • Sample Tracking Chronicle l' 8of20 0AC."IGUTM93T M76156 ..,. . x.,...r.s CHAIN OF CUSTODY 495 Ted,Cenbr W.I.Bldg.1 Marlboro.MA 01752 732-329.0200 FAX:732-329-3499/3480 Aeeuaat se.s Clientl ReoOrling Information _ - fac11 Information Ana kcal Information EXXONMOBIL CORPORATION-Regional Lab orato PrG ram Northeast consultants Comp"y Nam P"qul Nam.: Groundwater 6 Environmental Services Inc.-WNE Mobil-S.Windsor#01-QQA AddrNs SbNI 425 B Hayden Staflon Road 249 Oakland Road - - City sub Zip city, - Slale ;i Windsor Connecticut 06095 South Windsor CT h.k.:t Cmtad: 115na1 Eaaunaloml Conuct: Karen Harris kha ng,;d n ltr s.w n Mary Caruso Sampan ` , EsionmowcmtsctPhw P(609)586.4071 Phnom/ cMMJ rax/ LodaeonlD' - wasi 800-220-6119 860.688-9278 01-GOA APEP Po. 4509333735 Ur.. A/cc�lufe7sl Cdlection Preservation �amPte# J^ e of . 1 S Field ID/Point of Cdlectlon ate tmie sem Maw. boteec 0 Id di 143MS1 Oakland Road \� r"r:W rumamund nine Busaness a. - - •• Dale Dellverable Mbrmalon Commenbf Remark. OStd.to Sushiass Days Appmd9y9D.p:-+ �C.mmsreul"A' FOU.CIP - �e Day RUSH �commsrd.I-s- [�NYASPabp«yA Please follow RCP protocolfor aGA groundwaterclassification QS Day Rwsm NJ R.W..o NYAW Cal.9ory a O2 Day EMERGENCY NJ F.1 Sub Form. 2Day EMERGENCY Otlwr EDD Format 4 Dar EMERGENCY 0 OIMr Cdrrerr.riW"A" Pe.Wb onty Emepo TIA data available VIA Lablink Sampk Oust must umentetl below sash tIm* as Chan a ii.islon,IrtGutlinD Courier tlMive a. 4 4 n M76 1.56: Chain of Custody Page 1 of 2 ® r e 9 of 20 AiT M76156 -,. PROJECT COMMUNICATION FORM Client Name: ExxonMobil ProiectName.South Windsor Project Number.01-QQA Project Manazer John Moss Contact Info:(800)220-6119 x3540 Field Manner: Sample Matrix: ❑groundwater or surface water,❑soil,❑sediment,X drinking water,❑air,❑other Constituents of Concern:Please note any known or suspected contaminants in high concentrations or any non-standard analytes not contained in routine target lists(see notes). BTEX ReeuIatory Criteria: 11 Residential Direct Exposure Criteria,❑Industrial/Commercial Direct Exposure Criteria, ❑GA Pollutant Mobility Criteria,❑GB Pollutant Mobility Criteria,❑Other: ❑Groundwater Protection Criteria,❑ Surface Water Protection Criteria,[]Aquatic Life Criteria(specify applicable criteria below)X Other: EPA MCL's;CTDPH Action Levels Quality Control Requirements:Indicate ifyour project will have Project spec fc field quality control samples.Check all that apply.Also specify if special QAIQCsite requirements exist:i.e.,QAPP ❑Matrix Spike,❑Matrix Spike Duplicate,X Trip Blank(s), ❑Other Field QC: ' ❑Project QAPP(send appropriate section(s)to lab) Report Deliverables Requirements:Indicate any reporting requirements other than routine lab data sheets such as electronic formats: ❑Excel Tables,❑GISKey,❑Envirodata,X GES Format,X RCP,❑Other: Expected Sampling Date(s):Indicate expected number ofsampling events or duration May,August,November CN Total Number of Samples and Expected Sample Load Per Day:(indicate number of each matrix(applicable) I t17 G1 I Sample Pick Up: X office(s),❑site(address),❑other Special Instructions: i y ^�+ ❑ Report TICS Notes: Ifreguestine non-routine compounds that have no reeulatory criteria indicate required reporting C limit for each compound Q 0 Reasonable Confidence Protocol Laboratory Analysis QA/QC Certification Form P. iv Laboratory Name: Accutest New England Client: ExxonMobil Project Location: GESCT:01-QQA 249 Oakland Rd.,South project Number: PO#4509333735 WBS#OS Windsor CT Sampling Date(s): 8/11/2008 Laboratory Sample ID(s): M76156-1 Methods: EPA 524.2 REV 4.1 For each analytical method referenced in this laboratory report package, were all specified QA/QC performance criteria followed,including the requirement to explain any 1 criteria falling outside of acceptable guidelines,as specified in the CTDEP method- Yes t✓ No Fm specific Reasonable Confidence Protocol documents)? 1A Where all the method specified preservation and holding time requirments met? Yes t` No 113 VPH and EPH mehods only: Was the VPH or EPH method conducted without Yes f_ No significant modifications (See section 11.3 of respective methods) NA 7 2 Were all samples received by the laboratory in a condition consistent with Yes No that described on the associated chain-of-custody document(s)? 3 Were samples received at an appropriate temperature(<6"C)? Yes No 4 Were all QA/QC performance criteria specified in the CTDEP Reasonable Yes No Protocol documents achieved? 5 a)Were reporting limits specified or referenced on the chain-of-custody? Yes 171 No b)Were these reporting limits met? Yes l— No For each analytical method referenced in this laboratory report package, 6 were results reported for all constituents identified in the method-specific Yes No analyte lists presented in the Reasonable Confidence Protocol documents? 7 Are project-specific matrix spikes and laboratory duplicates included in this Yes No data set? Note:For all questions to which the response was"No" (with the exception of question#7),additional information must be provided in an attached narrative. If the answer to question#1,#1A or#1 B is"No",the data package does not meet the requirements for"Reasonable Confidence". I,the undersigned,attest under pains and penalties of perjury that,to the best of my knowledge and belief and based upon my personal inquiry of those responsible for providing the information contained in this analytical report,such information is accurate and complete. Authorized Signature: Position: Lab Director Printed Name: Reza Tend Date: 8/26/2008 Accutest New England ® 11 of 20 AGCT, M76156 :.,. .. .. Accutest Laboratories Internal Sample Tracking Chronicle W ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT Job No: M76156 Project No: PO#4509333735 WBS#08 Sample Number Method Analyzed By Prepped By Test Codes M76156=1 Collected: 11 AUG-08 09 53 By::SEL °" Received 12-AUG,08';By".SAP; 14311"51 OAKLAND ROAD M76156-1 EPA 524.2 REV 4.1 16-AUG-08 18:28 AT V524STD Page 1 of 1 ® 12 of 20 M76166 'L'. -0 z s New England '- f`T"S ALL IN THE ttIeMTSTAV GUMS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries • Surrogate Recovery Summaries 13 of 20 CACCUTEST. M76156 Method Blank Summary Page I of 2 Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch MSR240-MB R6172.1) 1 08/16/08 AT n/a n/a MSR240 cn The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M76156-1 CAS No. Compound Result RL Units Q 71-43-2 Benzene ND< 0.50 ug/1 108-86-1 Bromobenzene ND 0.50 ug/I 74-97-5 Bromochloromethane ND; 0.50 ug/I 75-27-4 Bromodichloromethane ND 0.50 ug/I 75-25-2 Bromoform ND 0.50 ug/I 74-83-9 Bromomethane NID 0.50 ug/I 104-51-8 n-Butylbenzene ND 0.50 ug/I 135-98-8 sec-Butylbenzene ND 0.50 ug/I 98-06-6 tert-Butylbenzene ND 0.50 ug/1 108-90-7 Chlorobenzene ND 0.50 ug/I 75-00-3 Chloroethane ND 0.50 ug/1 67-66-3 Chloroform ND 0.50 ug/I 74-87-3 Chloromethane ND 0.50 ug/I 95-49-8 o-Chlorotoluene ND 0.50 ug/I 106-43-4 p-Chlorotoluene ND 0.50 ug/1 56-23-5 Carbon tetrachloride ND 0.50 ug/1 75-34-3 1,1-Dichloroethane ND 0.50 ug/I 75-35-4 1,1-Dichloroethylene ND 0.50 ug/I 563-58-6 1,1-Dichloropropene ND 0.50 ug/I 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 ug/1 106-93-4 1,2-Dibromoethane ND 0.50 ug/I 107-06-2 1,2-Dichloroethane ND 0.50 ug/I 78-87-5 1,2-Dichloropropane ND 0.50 ug/I 142-28-9 1,3-Dichloropropane ND 0.50 ug/I 594-20-7 2,2-Dichloropropane ND 0.50 ug/I 124-48-1 Dibromochloromethane ND 0.50 ug/1 74-95-3 Dibromomethane ND 0.50 ug/1 75-71-8 Dichlorodifluoromethane ND 0.50 ug/1 10061-01-5 cis-1,3-Dichloropropene NO 0.50 ug/I 541-73-1 m-Dichlorobenzene ND 0.50 ug/I 95-50-1 o-Dichlorobenzene ND 0.50 ug/I 106-46-7 p-Dichlorobenzene ND 0.50 ug/I 156-60-5 trans-1,2-Dichloroethylene ND 0.50 ug/I 156-59-2 cis-1,2-Dichloroethylene ND 0.50 ug/I 10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/1 100-41-4 Ethylbenzene ND 0.50 ug/I ® 14 of 20 A:GGJTEST. M76156 •,. ..s c s Method Blank Summary Page 2 of 2 Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch MSR240-MB R6172.1) 1 08/16/08 AT n/a n/a MSR240 cs� The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M76156-1 CAS No. Compound Result RL Units Q 87-68-3 Hexachlorobutadiene ND 0.50 ug/I 98-82-8 Isopropylbenzene ND 0.50 ug/1 99-87-6 p-Isopropyltoluene ND 0.50 ug/1 75-09-2 Methylene chloride ND 0.50 ug/1 1634-04-4 Methyl Tert Butyl Ether ND 0.50 ug/I 91-20-3 Naphthalene ND ' 0.50 ug/1 103-65-1 n-Propylbenzene ND 0.50 ug/1 100-42-5 Styrene ND 0.50 ug/1 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 ug/I 71-55-6 1,1,1-Trichloroethane ND` " 0.50 ug/1 79-34-5 1,1,2,2-Tetrachloroethane ND` 0.50 ug/1 79-00-5 1,1,2-Trichloroethane ND 0.50 ug/1 87-61-6 1,2,3-Trichlorobenzene ND 0.50 ug/I 96-18-4 1,2,3-Trichloropropane ND- 0.50. ug/1 120-82-1 1,2,4-Trichlorobenzene ND 0.50 ug/I 95-63-6 1,2,4-Trimethylbenzene ND. 0.50 ug/I 108-67-8 1,3,5-Trimethylbenzene ND 0.50 ug/1 127-18-4 Tetrachloroethylene ND 0.50 ug/1 108-88-3 Toluene ND 0.50 ug/1 79-01-6 Trichloroethylene ND 0.50 ug/I 75-69-4 Trichlorofluoromethane ND 0.50 ug/1 75-01-4 Vinyl chloride ND 0.50 ug/1 m,p-Xylene ND 0.50 ug/I 95-47-6 o-Xylene ND 0.50 ug/1 1330-20-7 Xylenes (total) ND 0.50 ug/l CAS No. Surrogate Recoveries Limits 2199-69-1 1,2-Dichlorobenzene-d4 92% 70-130% 460-00-4 4-Bromofluorobenzene 87% 70-130% CAS No. Tentatively Identified Compounds R.T. Est. Cone. Units Q Total TIC, Volatile 0 ug/1 15of20 A ncai SST M76156 _ .-: Blank Spike Summary Page 1 of Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch MSR240-BS R6170.1) 1 08/16/08 AT n/a n/a MSR240 K) The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 Nd M76156-1 Spike BSP BSP CAS No. Compound ug/l ug/1 % Limits 71-43-2 Benzene 5 5.3 106 70-130 108-86-1 Bromobenzene 5 5.1 102- 70-130 74-97-5 Bromochloromethane 5 5.0 100 70-130 75-27-4 Bromodichloromethane 5 5.4 108 70-130 75-25-2 Bromoform 5 5.2 104 70-130 74-83-9 Bromomethane 5 5.6 112 70-130 104-51-8 n-Butylbenzene 5 5.0 10G 70-130 135-98-8 sec-Butylbenzene 5 5.1 1`02' 70-130 98-06-6 tert-Butylbenzene 5 4.8 96 70-130 108-90-7 Chlorobenzene 5 5.3 106 70-130 75-00-3 Chloroethane 5 5.6 112 70-130 67-66-3 Chloroform 5 6.1 122 70-130 74-87-3 Chloromethane 5 -6.0 120 70-130 95-49-8 o-Chlorotoluene 5 4.9 98_ 70-130 106-43-4 p-Chlorotoluene 5 5.3 106 70-130 56-23-5 Carbon tetrachloride 5 5.7 114 70-130 75-34-3 1,1-Dichloroethane 5 5.6 in 70-130 75-35-4 1,1-Dichloroethylene 5 5.0 100 70-130 563-58-6 1,1-Dichloropropene 5 5.1 102 70-130 96-12-8 1,2-Dibromo-3-chloropropane 5 5.3 1`06' 70-130 106-93-4, 1,2-Dibromoethane 5 5.3 106 70-130 107-06-2 1,2-Dichloroethane 5 5.9 118 70-130 78-87-5 1,2-Dichloropropane 5 5.7 114 70-130 142-28-9 1,3-Dichloropropane 5 5.3 106 70-130 594-20-7 2,2-Dichloropropane 5 5.5 110 70-130 124-48-1 Dibromochloromethane 5 5.1 102 70-130 74-95-3 Dibromomethane 5 5.5 110 70-130 75-71-8 Dichlorodifluoromethane 5 3.9 78 70-130 10061-01-5 cis-1,3-Dichloropropene 5 5.2 104 70-130 541-73-1 m-Dichlorobenzene 5 5.1 102 70-130 95-50-1 o-Dichlorobenzene 5 5.4 108 70-130 106-46-7 p-Dichlorobenzene 5 5.3 106 70-130 156-60-5 trans-1,2-Dichloroethylene 5 5.5 110 70-130 156-59-2 cis-1,2-Dichloroethylene 5 5.1 102 70-130 10061-02-6 trans-1,3-Dichloropropene 5 5.7 114 70-130 100-41-4 Ethylbenzene 5 4.9 98 70-130 ® 16 of 20 URGCLIETE93T, M76156 Blank Spike Summary Page 2 of 2 Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch MSR240-BS R6170.1) 1 08/16/08 AT n/a n/a MSR240 e� The C reported here applies to the following samples: Method: EPA 524.2 REV 4.1 Q P PP g P M76156-1 Spike BSP BSP CAS No. Compound ug/l ug/l % Limits 87-68-3 Hexachlorobutadiene 5 4.8 96 70-130 98-82-8 Isopropylbenzene 5 4.8 96 70-130 99-87-6 p-Isopropyltoluene 5 4.9 98` 70-130 75-09-2 Methylene chloride 5 5.2 104. 70-130 1634-04-4 Methyl Tert Butyl Ether 5 4.8 96 70-130 91-20-3 Naphthalene 5 4.5 90 70-130 103-65-1 n-Propylbenzene 5 5.1 102 70430 100-42-5 Styrene 5 4.3 86 70-130 630-20-6 1,1,1,2-Tetrachloroethane 5 5.4 108 70-130 71-55-6 1,1,1-Trichloroethane 5 5.5 110 70-130 79-34-5 1,1,2,2-Tetrachloroethane 5 5.3 106 70-130 79-00-5 1,1,2-Trichloroethane 5 5.1 1`02 70-130 87-61-6 1,2,3-Trichlorobenzene 5 4.4 88 70-130 96-18-4 1,2,3-Trichloropropane 5 4.7 94 _ 70-130 120-82-1 .1,2,4-Trichlorobenzene 5 4.8 96 70-130 95-63-6 1,2,4-Trimethylbenzene 5 4.9 98 70-130 108-67-8 1,3,5-Trimethylbenzene 5 5.0 100 70-130 127-18-4 Tetrachloroethylene 5 5.2 104 70-130 108-88-3 Toluene 5 5.0 100 70-130 79-01-6 Trichloroethylene 5 5.3 1`06 70-130 75-69-4 Trichlorofluoromethane 5 5.4 108 70-130 75-01-4 Vinyl chloride 5 5.1 102 70-130 m,p-Xylene 10 10.3 103 70-130 95-47-6 o-Xylene 5 5.1 102 70-130 1330-20-7 Xylenes (total) 15 15.4 103 70-130 CAS No. Surrogate Recoveries BSP Limits 2199-69-1 1,2-Dichlorobenzene-d4 95% 70-130% 460-00-4 4-Bromofluorobenzene 94% 70-130% 17 of 20 ®AC.CtJTEST. M76156 �,. :•�i,,r:O, Duplicate Summary Page I of 2 Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch M76131-11)UP R6174.1) 1 08/16/08 AT n/a n/a MSR240 M76131-1 R6173.1) 1 08/16/08 AT n/a n/a MSR240 MTN The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M76156-1 M76131-1 DUP CAS No. Compound ug/l Q ug/l Q RPD Limits 71-43-2 Benzene ND ND nc 30 108-86-1 Bromobenzene ND ND nc 30 74-97-5 Bromochloromethane ND ND nc 30 75-27-4 Bromodichloromethane ND ND nc 30 75-25-2 Bromoform ND ND nc'` 30 74-83-9 Bromomethane ND ND nc 30 104-51-8 n-Butylbenzene ND ND nc 30 135-98-8 sec-Butylbenzene ND ND nc' 30 98-06-6 tert-Butylbenzene ND ND nc` 30 108-90-7 Chlorobenzene ND ND nc` 30 75-00-3 Chloroethane ND ND nc 30 67-66-3 Chloroform ND ND nc . 30 74-87-3 Chloromethane ND ND nc' 30 95-49-8 o-Chlorotoluene ND ND nc 30 106-43-4 p-Chlorotoluene ND ND nc 30 56-23-5 Carbon tetrachloride ND ND nc 30 75-34-3 1,1-Dichloroethane ND ND nc 30 75-35-4 1,1-Dichloroethylene ND ND nc 30 563-58-6 1,1-Dichloropropene ND ND Inc 30 96-12-8 1,2-Dibromo-3-chloropropane ND ND nc 30 106-93-4 1,2-Dibromoethane ND ND nc 30 107-06-2 1,2-Dichloroethane ND ND nc 30 78-87-5 1,2-Dichloropropane ND ND nc 30 142-28-9 1,3-Dichloropropane ND ND nc 30 594-20-7 2,2-Dichloropropane ND ND nc 30 124-48-1 Dibromochloromethane ND ND nc 30 74-95-3 Dibromomethane ND ND nc 30 75-71-8 Dichlorodifluoromethane ND ND nc 30 10061-01-5 cis-1,3-Dichloropropene ND ND nc 30 541-73-1 m-Dichlorobenzene ND ND nc 30 95-50-1 o-Dichlorobenzene ND ND nc 30 106-46-7 p-Dichlorobenzene ND ND nc 30 156-60-5 trans-1,2-Dichloroethylene ND ND nc 30 156-59-2 cis-1,2-Dichloroethylene ND ND nc 30 10061-02-6 trans-1,3-Dichloropropene ND ND nc 30 100-41-4 Ethylbenzene ND ND nc 30 ® 18 of 20 AC:XJ E!ST M75156 Duplicate Summary Page 2 of 2 Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch M76131-1DUP R6174.1) 1 08/16/08 AT n/a n/a MSR240 M76131-1 R6173.1) 1 08/16/08 AT n/a n/a MSR240 The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M76156-1 M76131-1 DUP CAS No. Compound ug/l Q ug/l Q RPD Limits 87-68-3 Hexachlorobutadiene ND ND nc 30 98-82-8 Isopropylbenzene ND ND nc 30 99-87-6 p-Isopropyltoluene ND ND nc 30 75-09-2 Methylene chloride ND ND nc 30 1634-04-4 Methyl Tert Butyl Ether ND ND nc 30 91-20-3 Naphthalene ND ND nc 30 103-65-1 n-Propylbenzene ND ND nc 30 100-42-5 Styrene ND ND nc - 30 630-20-6 1,1,1,2-Tetrachloroethane ND ND nc` 30 71-55-6 1,1,1-Trichloroethane ND ND nc 30 79-34-5 1,1,2,2-Tetrachloroethane ND ND nc 30 79-00-5 1,1, ND ND nc 30 87-61-6 1,2,3-Trichlorobenzene ND ND nc 30 96-18-4 1,2,3-Trichloropropane ND ND nc 30 120-82-1 1,2,4-Trichlorobenzene ND ND nc 30 95-63-6 1,2,4-Trimethylbenzene ND ND nc 30 108-67-8 1,3,5-Trimethylbenzene ND ND nc 30 127-18-4 Tetrachloroethylene ND ND nc 30 108-88-3 Toluene ND ND nc 30 79-01-6 Trichloroethylene ND ND nc 30 75-69-4 Trichlorofluoromethane ND ND nc 30 75-01-4 Vinyl chloride ND ND nc 30 m,p-Xylene ND ND nc 30 95-47-6 o-Xylene ND ND nc 30 1330-20-7 Xylenes (total) ND ND nc 30 CAS No. Surrogate Recoveries DUP M76131-1 Limits 2199-69-1 1,2-Dichlorobenzene-d4 86% 97% 70-130% 460-00-4 4-Bromofluorobenzene 83% 89% 70-130% ® 19 of 20 M76156 :.,.I. ...._: r Volatile Surrogate Recovery Summary Page I of I Job Number: M76156 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Method: EPA 524.2 REV 4.1 Matrix: AQ Samples and QC shown here apply to the above method Lab Lab Sample ID File ID Si S2 M76156-1 R6188.1) 860 74.0 M76131-1DUP R6174.1) 86.0 83.0 MSR240-BS R6170.13 95.0 94.0 MSR240-MB R6172.13 92 0 87.0 Surrogate Recovery Compounds Limits SI = 1,2-Dichlorobenzene-d4 70-130% S2 = 4-Bromofluorobenzene 70-130% ® 20 of 20 ®ACC.tJ"t EST. M76156 ti• s.•,.:,s