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HomeMy WebLinkAboutWell Correspondence 150 Felt Road ` * Groundwater & Environmental Services, Inc.. 425B Hayden Station Road • Windsor, CT 06095 • Tel(860)688-9023 Fax(860)688-9278 February 28,2008 Mr. Daniel Katzbek 150 Felt Road South Windsor, CT 06074 Re: Potable Well Sampling Information 150 Felt Road South Windsor,CT 06074 Dear Mr. Katzbek, On behalf of ExxonMobil Environmental Services Company (EMESC), 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 February 8,2008, 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). For your information, 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 compound found in gasoline in your well water. However, the laboratory results indicate that a substance not found in gasoline (trichloroethylene [TCE]), a chlorinated hydrocarbon commonly used as a solvent, was detected in your drinking water at a concentration of 0.64 parts per billion(ppb). The Connecticut Drinking Water Standards for this compound is 5 ppb. As you know, the tests conducted on your drinking water well are part of an ongoing groundwater investigation being conducted under the direction of 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 May 2008. Again,thank you for your patience and cooperation. If you have any questions regarding the test results or the investigation in the area or if you notice changes in the taste, smell or appearance of your water, 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 DEP at 860-424-3947 or Robert Deptula, the Environmental Health Officer for the Town of South Windsor, at 860-644-2511 ext. 248. Sinc7el , ATohn D. Moss Kar X rris Project Hydrogeologist Senior Project Manager Enclosure cc: Kevin Neary-Connecticut Department of the Environmental Protection Robert Deptula-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 e-Hardcopy Z 0 Automated.Report ® New England 12A ---- ------- _ _.� �T� Ij :A L --t i r t$t�t��Z- r a v--- ---------- -- -- 02/18/08 Technical Report for ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT i PO#4509333735 WBS#08 Accutest Job Number: M70780 Sampling Date: 02/08/08 Report to: Groundwater & Environmental Services JMoss@gesonline.com ATTN: John Moss Total number of pages in report: 20 ��V�N ACCpROq� II ACCUT EI au s . . Test results contained within this data package meet the requirements Xe nd of the National Environmental Laboratory Accreditation Conference Labb Director kYE and/or state specific certification programs as applicable. Client Service contact: Kristen Blanchard 508-481-6200 Certifications:MA(M-MA136) CT(PH-0109) NH(250204) RI(00071) ME(MA136) FL(E87579) R S NY(23346) NJ(MA926) NAVY USACE e 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 1 • Marlborough,MA 01752 • tel:508-481-6200 • fax:508-481-7753 • http://www.accutest.com ® I of 20 13 ACCLITEST. Sections: Table of Contents Section1: Sample Summary ................................................................................................... 3 Section 2: Case Narrative/Conformance Summary .............................................................. 4 Section3: Sample.Results ......................................................................................................- 5 3.1: M70780-1: 150 FELT RD ............................................................................................ 6 Section4: Misc. Forms ............................................................................................................ S 4.1: Chain of Custody ........................................................................................................... 9 4.2: RCP Form ...................................................................................................................... 11 4.3: Sample Tracking Chronicle ........................................................................................... 12 Section5: GC/MS Volatiles - QC Data Summaries .............................................................. 1.3 5.1: Method Blank Summary ................................................................................................ 14 5.2: Blank Spike Summary ................................................................................................... 16 5.3: Duplicate Summary ....................................................................................................... 18 5A Surrogate Recovery Summaries ..................................................................................... 20 ® 2 of 20 Q®Cl_:L19'E43T. Accutest Laboratories Sample Summary ExxonMobil Job No: M70780 GESCT:01-QQA 249 Oakland Rd., South Windsor CT Project No: PO#4509333735 WBS#08 Sample Collected I I Matrix Client Number Date Time By Received Code Type Sample ID M70780-1 02/08/08 14:14 KGA 02/11/08 DW Drinking Water 150FELT RD.... ® 3 of 20 13.o►C=Lrrr=F-rr CA r•L �rb a t c> r i � s o SAMPLE DELIVERY GROUP CASE NARRATIVE Client: ExxonMobil Job No M70780 Site: GESCT:01-QQA 249 Oakland Rd.,South Windsor CT Report Date 2/18/2008 10:31:54 AM 1 Sample was collected on 02/08/2008 and were received at Accutest on 02/11/2008 properly preserved,at 0.9 Deg.C and intact. These Samples received an Accutest job number of M70780.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: MSK820 a All samples were analyzed within the recommended method holding tune. All method blanks for this batch meet method specific criteria. Sample(s) M70778-IDUP were used as the QC samples indicated. ■ MSK820-BS for 1,2,3-Trichlorobenzene:Outside control limits.Associated samples are non-detect for this compound. The Accutest Laboratories of New England certifies that all analysis were performed within method specification. It is fiirther 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(M70780). Monday,February 18,2008 Page I of I 4 of 20 ® New England 12Q - ___. L.abor:+,:ar+es Section 3 Sample Results Report of Analysis ® 5 of 20 Accutest Laboratories Report of Analysis Page I of Client Sample ID: 150 FELT RD Lab Sample ID: M70780-1 Date Sampled: 02/08/08 Matrix: DW-Drinking Water Date Received: 02/11/08 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 K23068.D 1 02/13/08 RT n/a n/a MSK820 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/I 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 ND ; 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/I 108-90-7 Chlorobenzene ND 100 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/I 56-23-5 Carbon tetrachloride ND 5.0 0.50 ug/I 75-34-3 1,1-Dichloroethane ND 0.50 ug/I 75-35-4 1,1-Dichloroethylene ND 7.0 0.50 ug/I 563-58-6 1,1-Dichloropropene ND 0.50 ug/I 96-12-8 1,2-Dibromo-3-chloropropane ND 0.20 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/I 78-87-5 1,2-Dichloropropane ND 5.0 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/I 74-95-3 Dibromomethane ND 0.50 ug/I 75-71-8 Dichlorodifluoromethane ND 0.50 ug/I 10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/I 541-73-1 m-Dichlorobenzene ND 0.50 ug/I 95-50-1 o-Dichlorobenzene ND 600 0.50 ug/I 106-46-7 p-Dichlorobenzene ND 75 0.50 ug/I 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 ® 6 of 20 ®AccurEsT: Accutest Laboratories Report of Analysis Page 2 of 2 Client Sample ID: 150 FELT RD Lab Sample ID: M70780-1 Date Sampled: 02/08/08 Matrix: DW-Drinking Water Date Received: 02/11/08 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/I 156-59-2 cis-1,2-Dichloroethylene ND 70 0.50 ug/I 10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/I 100-41-4 Ethylbenzene ND' 700 0.50 ug/I 87-68-3 Hexachlorobutadiene NO 0.50 ug/I 98-82-8 Isopropylbenzene ND 0.50 ug/I 99-87-6 p-Isopropyltoluene ND 0.50 ug/I 75-09-2 Methylene chloride ND 5.0 0.50 ug/I 1634-04-4 Methyl Tert Butyl Ether ND 0.50 ug/I 91-20-3 Naphthalene ND 0.50 ug/I 103 65 1 n-Propy lbenzene ND 0.50 ug/I 100-42-5 Styrene ND 100 0.50 ug/I 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 ug/I 71-55-6 1,1,1-Trichloroethane ND 200 0.50 ug/I 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/I 87-61-6 1,2,3-Trichlorobenzene ND 0.50 ug/I 96-18-4 1,2,3-Trichloropropane ND 0.50 ug/I 120-82-1 1,2,4-Trichlorobenzene ND 70 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/I 127-18-4 Tetrachloroethylene ND 5.0 0.50 ug/I 10848-3 Toluene NO 1000 0.50 ug/I 79-01-6 Trichloroethylene 0`.64 5.0 0.50 ug/I 75-69-4 Trichlorofluoromethane ND' 0.50 ug/I 75-01-4 Vinyl chloride ND 2.0 0.50 ug/I m,p-Xylene ND 0.50 ug/I 95-47-6 o-Xylene ND 0.50 ug/I 1330-20-7 Xylenes(total) ND 10000 0.50 ug/I CAS No. Surrogate Recoveries Run# 1 Run#2 Limits 2199-69-1 1,2-Dichlorobenzene-d4 77% 70-130% 460-00-4 4-Bromofluorobenzene 83% 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 ffin 7 of 20 FV drm_v rr=cwr New England 12Accu-a�sT it nt lit?YiE:St Section 4 Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody • RCP Form • Sample Tracking Chronicle ® 8 of 20 1P2 ne+r�e re•eQ�r ® CHAIN OF CJSTOA Y ser1� ;.e... 4951 I I Ce •r WCSL JWE I . A�'y6 a tST N1nr16nre.DIA 111/S1 _ anJu4x --— :"732-329.p21N1 FAX:-J2-J2vJ.3499/348U A/70 r9,t :. 1 F!=.N.; FACNA hdotmn5an' u.,-rwp"'-°, _•—�_ _ _Analyhtal lnlarnurlion .Caenl!RE DRin Information ', EjQ(ONMOBIL CORPORATION-Regional Lab atdry Program Ndrtheast:. I Carzallanla ComPanY Nnma Proleel Nmna: Groundwater 8,Bnvironmentni Services.Inc:-WNE Mobil-S.Windsor#01-QQA - I MOOS slreol � -. 425 8 Hayden Station Road '249 Oakland Road city sole ny city sl t Windsor':- 'ConnceclicUt 06095 S.Wlndsor C - - PtolaetContdel: - E-mail Exaonmabil cmuaa - - ' .John Moss.` ,nnli Ma Caruso --Sampl tm� f •, -ExxonMobil ConlaCl Pho • - l Y PhmNi - - Faxi LVaallon[Dk W89i _ .800 220.61{9 ext 3540'. - 860 6889278 01-QQA -unex APE# PDi y50333735 o ACDUIest --.CDNCCtion-". Mae at Sample R PI91d ID/PDInI of Collection ale - 'nme - n6ini � - I -T--na Tarn 1 em3sae• hµi4',.:..,'>$..- ¢.:.} Dan rN:twmale ano xm. J�z':Jt1YY` _�' Yi:-._ nse - �'SldlaBVelnoaiDays aparwea eYaoala: ❑eenrmoreial"A" -�FIJC&PLP"—'.'.,'. aimy nusH --❑cwmnorw I a• = ,Q NrA Pcai69oyA _ _. GA GROUNDWATER CLA591FICATIOM Spay RUSH ❑NJ Ra4ucxa -❑NYA Ikafe"."' e .--• _ .,CT RCP STANDARDS E 'yam MERGENCY -❑NJ Pull Slat Forms -- -• (� Y - :.❑EDD p rmot EM1IEREENCY oeur -� �- ❑ - /� '1 DaY EMERGENCY Cbli, -."ERler eh 'NA data available VIA1ablink Sompl+ECuslody mustbeAacum need twoW each time almplea cho ac ssession cla In courier CblWe �14110 tr 3-: a I i,1 'Fria �. s 3 —y-,.,nwna,a. ai$c a„Ica M70780: Chain of Custody Page 1 of 2 Joel 9 of 20 ®Ar=LrrEST- lab reports missing RCP data Page I of I Kathy Revane From: Mark Warren Sent: Friday,February 15,2008 3:50 PM To: Kathy Revane Subject:FW:lab reports missing RCP data .................._w._..... From:John Moss[mailto:JMoss@gesonline.coml Sent:Friday,February 15,2008 3:22 PM To:Mark Warren Subject:lab reports missing RCP data Mark, Here is a list of lab reports recently received without RCP details: M70778 M70779 M70786 M70785 M70780�/ M70783 M70782 M70781 RCP analysis was requested in the comments section of each chain of custody. Please let me know if that data package can be included with each report. Thank you, John John 0.Moss Project Hydrogeologist Groundwater and Environmental Services,Inc. woo 425E Hayden Station Road Windsor,CT 06095 p PH:800-220-6119 Ext.3540 FX:860-688-9278 00 p jmoss@gesonline.com Confidentiality Notice:This transmission(including any attachments)may contain confidential information belonging to Groundwater&Environmental Services,Inc.and is intended only for the use of the party or entity to which it is addressed.If you are not the intended recipient,you are hereby notified that any disclosure,copying,distribution,retention or the taking of action in reliance on the b -h contents of this transmission is strictly prohibited.If you have received this transmission in error,please ©� z immediately notify the sender and erase all information and attachments.Thank You. N fD on s � 2/15/2008 t-I c p �•q - Laboratory Analysis QA/QC Certification Form i� Laboratory Name: Accutest New England Client: ExxonMobil Project Location: GESCT:01-QQA 249 Oakland Rd.,South Project Number: PO#4509333735 WBS#08 Windsor CT Sampling Date(s): 2/8/2008 Laboratory Sample ID(s): M70780-1 For each analytical method referenced in this laboratory report package, were all specified QA/QC performance criteria followed(including the requirement to 1 explain any criteria failing outside of acceptable guidelines,as specified in the CT Yes No _. DEP method-specific Reasonable Confidence Protocol documents)? 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(4°C t 2°)? Yes ri: No 4 Were all QA/QC performance criteria specified in the CT DEP Reasonable Confidence Protocol documents achieved? Yes No M. 5 a)Were reporting limits specified or referenced on the chain-of-custody? Yes No b)Were these reporting limits met? Yes C No For each analytical method referenced in this laboratory report package, 6 were results reported for all constituents identified in the method-specific Yes :.yJ No analyte lists presented in the Reasonable Confidence Protocol documents? Are project-specific matrix spikes and laboratory duplicates included in this 7 data set? Yes No 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 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: 2/18/2008 ® 11 of 20 Accutest Laboratories Internal Sample Tracking Chronicle ExxonMobil Job No: M70780 GESCT:01-QQA 249 Oakland Rd., South Windsor CT Project No: PO#4509333735 WBS#08 Sample Number Method Analyzed By Prepped By Test Codes 117010-t 78 M70780-1 EPA 524.2 REV 4.1 13-FEB-08 17:01 RT V524STD Page 1 of 1 ® 12 of 20 New England z Section 5 GUMS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries • Surrogate Recovery Summaries I ® 13 of 20 Method Blank Summary Page I of 2 Job Number: M70780 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 MSK820-MB K23054.D 1 02/13/08 RT n/a n/a MSK820 to The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70780-1 CAS No. Compound Result RL Units Q 71-43-2 Benzene ND 0.50 ug/l 108-86-1 Bromobenzene ND 0.50 ug/l 74-97-5 Bromochloromethane ND 0.50 ug/l 75-27-4 Bromodichloromethane ND 0.50 ug/l 75-25-2 Bromoform ND 0.50 ug/1 74-83-9 Bromomethane ND 0.50 ug/l 104-51-8 n-Butylbenzene ND 0.50 ug/l 135-98-8 sec-Butylbenzene ND-. 0.50 ug/l 98-06-6 tert-Butylbenzene ND 0.50 ug/1 108-90-7 Chlorobenzene ND 0.50 ug/l 75-00-3 Chloroethane ND '0.50 ug/1 67-66-3 Chloroform N_D 0.50 ug/l 74-87-3 Chloromethane ND 0.50 ug/l 95-49-8 o-Chlorotoluene ND 0.50 ug/l 106-43-4 p-Chlorotoluene ND 0.50 ug/l 56-23-5 Carbon tetrachloride ND 0.50 ug/l 75-34-3 1,1-Dichloroethane ND 0.50 ug/l 75-35-4 1,1-Dichloroethylene ND 0.50 ug/l 563-58-6 1,1-Dichloropropene N.D 0.50 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 ug/l 106-93-4 1,2-Dibromoethane ND 0.50 ug/l 107-06-2 1,2-Dichloroethane ND 0.50 ug/l 78-87-5 1,2-Dichloropropane ND 0.50 ug/l 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/l 74-95-3 Dibromomethane ND 0.50 ug/l 75-71-8 Dichlorodifluoromethane ND 0.50 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 0.50 ug/l 541-73-1 m-Dichlorobenzene ND 0.50 ug/l 95-50-1 o-Dichlorobenzene ND` 0.50 ug/l 106-46-7 p-Dichlorobenzene ND 0.50 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 0.50 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 0.50 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/l 100-41-4 Ethylbenzene ND 0.50 ug/l ® 14 of 20 ry w rrI rr�ar t Method Blank Summary Page 2 of 2 Job Number: M70780 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 MSK820-MB K23054.D 1 02/13/08 RT n/a n/a MSK820 tsn i The QC reported pp g samples: here applies to the following Method: EPA 524.2 REV 4.1 M70780-1 CAS No. Compound Result RL Units Q 87-68-3 Hexachlorobutadiene ND 0.50 ug/l 98-82-8 Isopropylbenzene ND 0.50 ug/l 99-87-6 p-Isopropyltoluene ND 0.50 ug/1 75-09-2 Methylene chloride ND 0.50 ug/l 1634-04-4 Methyl Tert Butyl Ether ND 0.50 ug/l 91-20-3 Naphthalene ND 0.50 ug/l 103-65-1 n-Propylbenzene ND 0.50 ug/l 100-42-5 Styrene ND 0.50 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 ug/l 71-55-6 1,1,1-Trichloroethane ND 0.50 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l 79-00-5 1,1,2-Trichloroethane ND 0.50 ug/l 87-61-6 1,2,3-Trichlorobenzene ND__. 0.50 ug/1 96-18-4 1,2,3-Trichloropropane ND 0.50 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 0.50 ug/l 95-63-6 1,2,4-Trimethylbenzene ND 0.50 ug/l 108-67-8 1,3,5-Trimethylbenzene ND 0.50 ug/l 127-18-4 Tetrachloroethylene ND 0.50 ug/l 108-88-3 Toluene ND 0.50 ug/l 79-01-6 Trichloroethylene NO 0.50 ug/l 75-69-4 Trichlorofluoromethane ND 0.50 ug/1 75-01-4 Vinyl chloride ND 0.50 ug/l m,p-Xylene ND 0.50 ug/l 95-47-6 o-Xylene ND 0.50 ug/l 1330-20-7 Xylenes(total) ND 0.50 ug/l CAS No. Surrogate Recoveries Limits 2199-69-1 1,2-Dichlorobenzene-d4 79% 70-130% 460-00-4 4-Bromofluorobenzene 92% - 70-130% ® 15 of 20 !V n.r wn rr=+Q-r Blank Spike Summary Page I of 2 Job Number: M70780 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 MSK820-BS K23052.13 1 02/13/08 RT n/a n/a MSK820 cn N The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70780-1 Spike BSP BSP CAS No. Compound ug/l ug/l % Limits 71-43-2 Benzene 5 4.7 94 70-130 108-86-1 Bromobenzene 5 4.9 98_ 70-130 74-97-5 Bromochloromethane 5 4.9 98 70-130 75-27-4 Bromodichloromethane 5 4.9 98. 70-130 75-25-2 Bromoform 5 4.9 +98. - 70-130 74-83-9 Bromomethane 5 5.0 100 70-130 104-51-8 n-Butylbenzene 5 4.9 98'-- 70-130 135-98-8 sec-Butylbenzene 5 4.9 W 70-130 98-06-6 tert-Butylbenzene 5 4.9 98 70-130 108-90-7 Chlorobenzene 5 4.8 96 70-130 75-00-3 Chloroethane 5 4.8 96- 70-130 67-66-3 Chloroform 5 4.9 98- 70-130 74-87-3 Chloromethane 5 5.0 100 70-130 95-49-8 o-Chlorotoluene 5 4.8 96 70-130 106-43-4 p-Chlorotoluene 5 4.9 98 70-130 56-23-5 Carbon tetrachloride 5 4.9 98 70-130 75-34-3 1,1-Dichloroethane 5 5.0 .100 70-130 75-35-4 1,1-Dichloroethylene 5 5.2 104 70-130 563-58-6 1,1-Dichloropropene 5 4.8 96 70-130 96-12-8 1,2-Dibromo-3-chloropropane 5 5.2 104 70-130 106-93-4 1,2-Dibromoethane 5 4.9 98 70-130 107-06-2 1,2-Dichloroethane 5 5.0 100 70-130 78-87-5 1,2-Dichloropropane 5 4.8 96 70-130 142-28-9 1,3-Dichloropropane 5 4.5 90 70-130 594-20-7 2,2-Dichloropropane 5 4.6 92 70-130 124-48-1 Dibromochloromethane 5 4.9 98 70-130 74-95-3 Dibromomethane 5 5.1 102 70-130 75-71-8 Dichlorodifl uoromethane 5 3.6 72 70-130 10061-01-5 cis-1,3-Dich loropropene 5 4.8 96 70-130 541-73-1 m-Dichlorobenzene 5 4.9 98 70-130 95-50-1 o-Dichlorobenzene 5 5.1 102 70-130 106-46-7 p-Dichlorobenzene 5 5.2 104 70-130 156-60-5 trans-1,2-Dichloroethylene 5 4.6 92 70-130 156-59-2 cis-1,2-Dichloroethylene 5 4.5 90 70-130 10061-02-6 trans-1,3-Dichloropropene 5 5.2 104 70-130 100-41-4 Ethylbenzene 5 4.8 96 70-130 ® 16 of 20 ©,&ru-t_.rr -nnr Blank Spike Summary Page 2 of 2 Job Number: M70780 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 MSK820-BS K23052.1) 1 02/13/08 RT n/a n/a MSK820 cs, iv The QC reported here applies to the following sampl es: Method: EPA 524.2 REV 4.1 M70780-1 Spike BSP BSP CAS No. Compound ug/1 ug/I % Limits 87-68-3 Hexachlorobutadiene 5 5.4 108 70-130 98-82-8 Isopropylbenzene 5 4.9 98 70-130 99-87-6 p-Isopropyltoluene 5 5.0 100 70-130 75-09-2 Methylene chloride 5 4.6 92 70-130 1634-04-4 Methyl Tert Butyl Ether 5 5.1 102 70-130 91-20-3 Naphthalene 5 5.5 110 70-130 103-65-1 n-Propylbenzene 5 4.9 98 70-130 100-42-5 Styrene 5 4.7 94 70-130 630-20-6 1,1,1,2-Tetrachloroethane 5 4.8 96 70-130 71-55-6 1,1,1-Trichl oroethane 5 4.7 94 70-130 79-34-5 1,1,2,2-Tetrachloroethane 5 5.1 102 70-130 79005- - 1 1,2 Trichloroethane 5 4.9 98 70-130 87-61-6 1,2,3-Trichlorobenzene 5 6.6 132*a 70-130 96-18-4 1,2,3-Trichloropropane 5 4.7 94 70-130 120-82-1 1,2,4-Trichlorobenzene 5 5.2 104 70-130 95-63-6 1,2,4-Trimethylbenzene 5 4.8 96 70-130 108-67-8 1,3,5-Trimethylbenzene 5 4.9 98 70-130 127-18-4 Tetrachloroethylene 5 4.9 98 70-130 108-88-3 Toluene 5 4.8 96 70-130 79-01-6 Trichloroethylene 5 4.6 92 70-130 75-69-4 Trichlorofluoromethane 5 4.8 96 70-130 75-01-4 Vinyl chloride 5 4.7 94 70-130 m,p-Xylene 10 9.5 95 70-130 95-47-6 o-Xylene 5 4.9 98 70-130 1330-20-7 Xylenes(total) 15 14.4 96 70-130 CAS No. Surrogate Recoveries BSP Limits 2199-69-1 1,2-Dichlorobenzene-d4 107% 70-130% 460-00-4 4-Bromofluorobenzene 102% 70-130% (a)Outside control limits. Associated samples are non-detect for this compound. lull 17 of 20 E2 AAA'd rr=crr 4 Duplicate Summary Page I of 2 Job Number: M70780 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 M70778-1DUP K23066.D 1 02/13/08 RT n/a n/a MSK820 M70778-1 K23065.D 1 02/13/08 RT n/a n/a MSK820 is The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70780-1 M70778-1 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-Butyl benzene 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 he 30 75-35-4 1,1-Dichloroethylene ND ND nc 30 563-58-6 1,1-Dichloropropene ND ND nc 30 96-12-8 1,2-Dibromo-3-chloropropane ND ND nc 30 106-93-4 1,2-Dibromoethane ND ND he 30 107-06-2 1,2-Dichloroethane ND ND nc 30 78-87-5 1,2-Dichloropropane 0.28 0.25 J 11 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 he 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 F2 Ar-r-1 ITZG`T Duplicate Summary Page 2 of 2 Job Number: M70780 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 M70778-1DUP K23066.13 1 02/13/08 RT n/a n/a MSK820 M70778-1 K23065.13 1 02/13/08 RT n/a n/a MSK820 to w The QC reported here applies to the following samples : Method: EPA 524.2 REV 4.1 M70780-1 M70778-1 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 no 30 91-20-3 Naphthalene ND ND n.c 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 no, 30 79-00-5 1,1,2-Trichloroethane 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 1.2 1.2 0 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 rip 30 1330-20-7 Xylenes(total) ND ND nc. 30 CAS No. Surrogate Recoveries DUP M70778-1 Limits 2199-69-1 1,2-Dichlorobenzene-d4 84% 78% 70-130% 460-00-4 4-Bromofluorobenzene 95% 86% 70-130% ® 19 of 20 r ,- Volatile Surrogate Recovery Summary Page I of I Job Number: M70780 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 S1 S2 M70780-1 K23068.13 77.0 83.0 M70778-1DUP K23066.D 84.0 85.0 MSK820-BS K23052.D 107.0 102.0 MSK820-MB K23054.13 70.0 92.0 Surrogate Recovery Compounds Limits S1 = 1,2-Dichlorobenzene-d4 70-130% ` S2= 4-Bromofluorobenzene -70430%. ® 20 of 20