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HomeMy WebLinkAboutWell Inspection 146 Oakland Road (4) r L7 LZ,VAN & Environmental Services, Inc. 425E Hayden Station Road Windsor,CT 06095 • Tel(860)688-9023 • Fax(860)688-9278 February 28,2008 Mr. Sunny Chaddha 27 Cooley Avenue Middletown, CT 06457 Re: Potable Well Sampling Information 146 Oakland Road South Windsor, CT 06074 Dear Mr. Chaddha, 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. 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. Since•ely John D. Moss / Karen L. Harris 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 � 7 r 1 i e-HG rdeopy 2.0 Arctonzated Report New England UACCUTMT. AOW, j AL - 4 -Tttt- ctlae R.TP T02/18/08 Technical Report for. ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT PO#4509333735 WBS#08 Accutest Job Number: M70785 Sampling Date: 02/08/08 Report to: Groundwater & Environmental Services JMoss@gesonline.com ATTN: John Moss Total number of pages in report: 20 ��o`��V�p nccoRoq�c� A-'fa Test results contained within this data package meet the requirements ZeZa and of the National Environmental Laboratory Accreditation Conference Lab Director 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) Y E A NY(23346) NJ(MA926) NAVY USACE �, • 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 ®ACCLffUST t Sections: Table of Contents -1- Section1: Sample Summary................................................................................................... 3 Section2: Case Narrative/Conformance Summary .............................................................. 4 Section3: Sample Results ........................................................................................................ 5 3.1: M70785-1: 146 OAKLAND RD .................................................................................. 6 Section4: Misc. Forms ............................................................................................................ 8 4.1: Chain of Custody ........................................................................................................... 9 4.2: RCP Form ...................................................................................................................... 11 4.3: Sample Tracking Chronicle ........................................................................................... 12 Section 5: GC/MS Volaatiles - QC Data Summaries .............................................................. 13 5.1: Method Blank Summary ................................................................................................ 14 5.2: Blank Spike Summary ................................................................................................... 16 5.3: Duplicate Summary ........... ........................................................................................ 18 5.4: Surrogate Recovery Summaries ..................................................................................... 20 ® 2 of 20 ®ACCUTEST. S Accutest Laboratories Sample Summary ExxonMobil Job No: M70785 GESCT:01-QQA 249 Oakland Rd., South Windsor CT Project No: PO#4509333735 WBS#08 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID M70785-1 02/08/08 14:26 SEL 02/11/08 DW Drinking Water 146 OAKLANDRD ® 3 of 20 IUA=UTEST r L a b o r a to r i es SAMPLE DELIVERY GROUP CASE NARRATIVE Client: ExxonMobil Job No M70785 Site: GESCT:01-QQA 249 Oakland Rd.,South Windsor CT Report Date 2/18/2008 10:49:02 AM I 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 M70785.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 r All samples were analyzed within the recommended method holding time. - All method blanks for this batch meet method specific criteria. r Sample(s) M70778-1DUP were used as the QC samples indicated. - as 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 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(M70785). Monday,February 18,2008 Page 1 of 1 ® 4 of 20 ®AC.CUTEST New England 12ACCUTEST c a h U fi f < S . Section bb1ion 3 Sample Results Report of Analysis ® 5 of 20 ®ACCUTEST. Accutest Laboratories Report of Analysis Page I of Client Sample ID: 146 OAKLAND RD If XV Lab Sample ID: M70785-1 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:0I-QQA 249 Oakland Rd., South Windsor CT File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run#1 K23073.13 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/1 108-86-1 Bromobenzene ND 0.50 ug/1 74-97-5 Bromochloromethane ND 0.50 ug/I 75-27-4 Bromodichloromethane ND 0.5,0 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/1 135-98-8. sec-Butylbenzene ND 0.50 ug/1 98-06-6 tert-Butylbenzene ND 0.50 ug/l 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/1 74-87-3 Chloromethane ND 0.50 ug/1 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 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/1 563-58-6 1,1-Dichloropropene ND 0.50 ug/I 96-12-8 1,2-Dibromo-3-chloropropane ND 0.20 0.50 ug/1 106-93-4 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/1 124-48-1 Dibromochloromethane ND 0.50 ug/1 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/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 12ACCurES-r. ti e Accutest Laboratories Report of Analysis Page 2 of 2 Client Sample ID: 146 OAKLAND RD Lab Sample ID: M70785-1 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/l 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 ND 0.50 ug/1 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/I 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/l 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/I 120-82-1 1,2,4-Trichlorobenzene ND 70 0.50 ug/1 95-63-6 1,2,4-Trimethylbenzene ND `' 0.50 ug/1 108-67-8 1,3,5-Trimethylbenzene ND 0.50 ug/I 127-18-4 Tetrachloroethylene ND 5.0 0.50 ug/I 108-88-3 Toluene ND 1000 0.50 ug/l 79-01-6 Trichloroethylene ND 5.0 0.50 ug/I 75-69-4 Trichlorofluoromethane ND 0.50 ug/1 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/I CAS No. Surrogate Recoveries Run#1 Run#2 Limits 2199-69-1 1,2-Dichlorobenzene-d4 79% 70-130% 460-00-4 4-Bromofluorobenzene 89% 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 ®ACCUTIEST ® New England I2ACCUTEST = -' - La o.n raiae :es 4°-f Section 4 � E TliT _T Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody • RCP Form • Sample Tracking Chronicle ® 8 of 20 ®accUTEs-r s in® CHAIN Of CUSTOD V IM ACCUTEST 495 bo c t A 0 7 at.Day.t Marlhorc,h1A OI7 L a f••c, d t o r c: 732-329.0200 FA :732-329-3499/3480 ne:,Joe" �''I_ 7o 75 8 :i.. Client/Re dbl Inlormetion ...�" -� � �. f FaCilif Iniprm0tbn 15I y..W.f AnalYtical b,tommhm, - EXXONMOBIL CORPORATION-Regional Lab Story Program Northeast Consultants Company Noma P`*t Nmne: Groundwater&Environmental Services,Inc.-WNE Mobil-S.Windsor 901-QQA j - A'M... Strata I 428 B Hayden Station Road 249 Oakland Road city State Zip City St. Wfndsor Connecticut 06096 S.Windsor Project Contact' E-11 Exxon.fubil Contact: John Moss •.M Bch i Mar Caruso - 8ampta,'NVPo I„ ExxonMobll Contact Phone# phone# Fax" Location lD# WBS# 800 220.6119 ext.3540 860 688.9278 01-00A APE/F Pop 'y5v933373s -"""" Acculest Co"ection I Preservalion Sample# - #of" .:a Field ID/Polnl of Cdlectlon ate Time Samples b lmw; iwass . - t - - I - - ..Tiw4IWntlTime 6USIne5a tl3 1 � - � �.�-�1aYrs:.. � .- DaI.D¢Nvemleo el(an,al , .. -MEL -••. Cmrvlmtael Nnr,.•,:> . E=Bid.10 Business Day. Aypreselaydeald: Commercial-A" OM LL CLP a Day RUSH El N ASP CatagoryA GA GROUNDWATER CLASSIFICATION S 0.Y RUSH NJ Reduced f N ASP Category B .�ODey EMERDENCY 1-1 NJ Fell 8i It F&fils CT RCP STANDARDS — __�2DeY EMERtiFllCY - 0 other O E D:Fermat. 1 DaYEMER°EHCY ��Olhi ,•'- .-.- -Com„H•rcl.l'A"a Result 0ly - N: -, ------ -�� — -i.-Eff6Fdbn T/Adatadvbllabli3.V1A Labilnk j triple 0 todyAnUst.be docurnoMeid.bolo each Ume sanlplitexhal op st—lo it Lull 9coui,d.11 . - y l v - ve 10 M70785: Chain of Custody Page I of 2 ® 9 of 20 ®ACCUTEST. lab reports missing RCP data Page l of 1 Kathy Revane From: Mark Warren Sent: Friday,February 15,2008 3:50 PM To: Kathy Reverie Subject:FW:tab reports missing RCP data i From:John Moss[malito:JMoss@gesonline.com] 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 i M70783 M70782 IV170781 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 I John D.Moss Project Hydrogeologist Groundwater and Environmental Services,Inc. 425E Hayden Station Road Windsor,CT 06095 PH:800-220-6119 Ext.3540 FX:860-688-9278 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 ® contents of this transmission is strictly prohibited.If you have received this transmission in error,please 7CD immediately notify the sender and erase all information and attachments.Thank You. N 2./I 5r2003 50 ED -4 © � Laboratory Analysis QA/QC Certification Form IV Laboratory Name: Accutest New England Client: Exxon Mobil 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): M70785-1 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)? Were all samples received by the laboratory in a condition consistent with 2 that described on the associated chain-of-custody document(s)? Yes No 3 Were samples received at an appropriate temperature(4°C±2°)? Yes No 4 Were all QA/QC performance criteria specified in the CT DEP Reasonable Yes No Confidence Protocol documents achieved? - 5 a)Were reporting limits specified or referenced on the chain-of-custody? Yes No b)Were these reporting limits met? Yes No For each analytical method referenced in this laboratory report package, 6 were results reported for all constituents identified in the method-specific Yes M 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 Tand Date: 2/18/2008 ® 11 of 20 UACCU MST» M70785 I�,., 1-.::,, r Accutest Laboratories Internal Sample Tracking Chronicle w ExxonMobil Job No: M70785 GESCT:01-QQA 249 Oakland Rd., South Windsor CT Project No: PO#4509333735 WBS#08 Sample Number Method Analyzed By Prepped By Test Codes v p € *- 7 �� �bl���d 0$ IaEB�$ �2By�F� *��7eceit�e�d�>.�1 )E��8;#B, gA ��1 M70785-1 EPA 524.2 REV 4.1 13-FEB-08 19:17 RT V524STD Page 1 of 1 ® 12 of 20 ®ACCUTEET M70785 } ® New England 12A _ T (�/ gfyy Section 5 p ``ii It 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 ®ACCU EST M70785 -71, rofo'+xs r' Method Blank Summary Page 1 of 2 Job Number: M70785 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 try The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70785-1 CAS No. Compound Result RL Units Q 71-43-2 Benzene ND 0.50 ug/I 108-86-1 Bromobenzene ND 0.50 ug/I 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/I 74-83-9 Bromomethane ND 0.50 ug/I 104-51-8 n-Butylbenzene ND 0.50 ug/l 135-98-8 sec-Butylbenzene N.D 0.50 ug/l 98-06-6 tert-Butylbenzene ND 0.50 ug/l 108-90-7 Chlorobenzene ND 0.50 ug/l 75-00-3 Chloroethane ND 0.50 ug/l 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/l 106-43-4 p-Chlorotoluene ND 0.50 ug/I 56-23-5 Carbon tetrachloride ND 0.50 ug/l 75-34-3 1,1-Dichloroethane ND 0.50 ug/I 75-35-4 1,1-Dichloroethylene ND 0.50 ug/l 563-58-6 1,1-Dichloropropene ND 0.50 ug/I 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 ug/I 106-93-4 1,2-Dibromoethane ND 0.50 ug/l 107-06-2 1,2-Dichloroethane ND 0.50 ug/I 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/I 541-73-1 m-Dichlorobenzene ND 0.50 ug/l 95-50-1 o-Dichlorobenzene ND 0.50 ug/I 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-D ichloroethylene ND 0.50 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 0.50 ug/I 100-41-4 Ethylbenzene ND 0.50 ug/l 14 of 20 ®ACCUTEST. Method Blank Summary Page 2 of 2 Job Number: M70785 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 K23054.1) 1 02/13/08 RT n/a n/a MSK820 u, The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70785-1 CAS No. Compound Result RL Units Q 87-68-3 Hexachlorobutadiene ND 0.50 ug/l 98-82-8 Isopropyl benzene ND 0.50 ug/I 99-87-6 p-Isopropyltoluene ND 0.50 ug/l 75-09-2 Methylene chloride ND 0.50 ug/l 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-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/I 71-55-6 1,1,1-Trichloroethane ND 0.50 ug/I 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 ug/l 79-00-5 1,1,2-Trichloroethane ND 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 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/l 127-18-4 Tetrachloroethylene ND 0.50 ug/I 108-88-3 Toluene ND 0.50 ug/I 79-01-6 Trichloroethylene ND 0.50 ug/I 75-69-4 Trichlorofluoromethane ND 0.50 ug/I 75-01-4 Vinyl chloride AND 0.50 ug/l m,p-Xylene ND 0.50 ug/I 95-47-6 o-Xylene ND 0.50 ug/I 1330-20-7 Xylenes(total) ND 0.50 ug/I 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 ®ACCICI.ITEST. Blank Spike Summary Page 1 of 2 Job Number: M70785 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.D 1 02/13/08 RT n/a n/a MSK820 cav iv The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70785-1 Spike BSP BSP CAS No. Compound ug/l ug/I % 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 98 70-130 98-06-6 tert-Butyl benzene 5 4.9 798 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 1001 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 Dichlorodifluoromethane 5 3.6 72 70-130 10061-01-5 cis-1,3-Dichloropropene 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-Dichl oroethylene 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 ®ACCU7 EST y Y; Blank Spike Summary Page 2 of 2 Job Number: M70785 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 cn iv The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70785-1 Spike BSP BSP CAS No. Compound ug/I ug/I % Limits 87-68-3 H exachlorobutadiene 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 1.02 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-Trichloroethane 5 4.7 94 70-130 79-34-5 1,1,2,2-Tetrachloroethane 5 5.1 102 70-130 79-00-5 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. ® 17 of 20 ®ACCLff IEST. Duplicate Summary Page I of 2 Job Number: M70785 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 K23065.13 1 02/13/08 RT n/a n/a MSK820 i� The C reported here applies to the following samples: Method: EPA 524.2 REV 4.1 Q p pp g P M70785-1 M70778-1 DUP CAS No. Compound ug/l Q ug/1 Q RPD Limits 71-43-2 Benzene ND ND [nc 30 108-86-1 Bromobenzene ND ND itic, 30 74-97-5 Bromochloromethane ND ND nc 30 75-27-4 Bromodichloromethane ND ND nc 30 75-25-2 Bromoform ND ND ric 30 74-83-9 Bromomethane ND ND nc. . 30 104-51-8 n-Butylbenzene ND ND he 30 135-98-8 sec-Butylbenzene ND ND nc 30 98-06-6 tert-Butylbenzene ND ND he 30 108-90-7 Chlorobenzene ND ND nc 30 75-00-3 Chloroethane ND ND nc 30 67-66-3 Chloroform ND ND tic 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 nc 30 96-12-8 1,2-Dibromo-3-chloropropane ND ND he 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 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 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 ®ACCUT EST a. Pw Duplicate Summary Page 2 of 2 Job Number: M70785 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.D 1 02/13/08 RT n/a n/a MSK820 Ln w The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M70785-1 M70778-1 DUP CAS No. Compound ug/I Q ug/1 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 c 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 1,1,2-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 nc 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 85% 86% 70-130% ® 19 of 20 12ACCUTEBrT Y +M Volatile Surrogate Recovery Summary Page 1 of 1 Job Number: M70785 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 M70785-1 K23073.D 79.0 _ ' 89.0 M70778-1DUP K23066.D 84.0 85.0 MSK820-BS K23052.D 1070 102.0 MSK820-MB K23054.D 790 92.0 Surrogate Recovery Compounds Limits S1 = 1,2-Dichlorobenzene-d4 70-1306/o S2= 4-Bromofluorobenzene 707130% ® 20 of 20 ®ACCUT'EST.