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Well Inspection 118 Oakland Road (4)
- r Groundwater g & Environmental Services, Inc. -425B Hayden Station Road Windsor,CT 06095 Tel(860)688-9023 Fax(860)688-9278 January 6,2009 Ms. Susan Havens Oakland Preschool Center 118 Oakland Road South Windsor,CT 06074 Re: Potable Well Sampling Information 118 Oakland Road South Windsor, CT 06074 Dear Ms. Havens, 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 November 19,2008. 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. 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). 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. Sin ely, Matthew R. Duffy Abr' 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 v Environmental Solutions and Liability Management e-Hardeol)y Z 0 .Automated Report New England t s at_t_ I THE t<HVmIS.Y v 12/03/08 Technical Report for ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT PO#4509333735 WBS#08 Accutest Job Number: M78853 Sampling Date: 11/19/08 Report to: Groundwater & Environmental Services kharris@gesonline.corn ATTN: Karen Harris Total number of pages in report: 20 res Co . aelgillejalm Test results contained within this data package meet the requirements eeaZd of the National Environmental Laboratory Accreditation Conference Lab Director and/or state specific certification programs as applicable. Client Service contact: Reza Tand 508-481-6200 Certifications:MA(M-MA136) CT(PH-0109) NH(2502) RI(00071) ME(MA0136) FL(E87579) IY E A R NY(11791) NJ(MA926) PA(68-01121) NC(653) IL(200018) 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 1 - Marlborough,MA 01752 - tel:508-481-6200 - fax:508-481-7753 - http://www.accutes(.com Nnte"'I'hi;!epart is password protected to disallow locum lt iziodrtitatian or 55ccll7;y. l 1 of 2 A password to unlock.his report is available frarn your client servi c represent,.tne. _.TEST M78853 _.- ' . ` ' ������u: 1�=�=N f� �� Table ��� n��� — ^^ - ~~~~�~~~= -�_ . Smmtion8:,Smmmle Summary ^,..^^.^,,,,,,,^,,,^,,,,, ,,,,,,,^,,,,;,,,,,,,^^~,,,, 3 Section 2' ���� ����mm�� �� . ��um�amve/�. �� mmmmry..~,~..-..~~~...~.~.-.^~~~..~..~~~.~.....~~~,. 4 Section 3: Smmmple Results ^~~`~~~^~^~^..~`~^..~^~~^~`~..^^^~''~~~ ~^~`'^^^~^-~~^^^``~~^^~'~^ 5 3.1~ DK�7��53 l' ll� {����I.���[0l�(]�JJ . - . -------------'-._---------.. 6 ��o@�m�� ��kmc^ Forms ' ~~^^^^````^^^^^`^^~^^^^`^``^^~`-^^^`~`^^`^~^^```~`^~``^``~~^```^~^``^`^^`^~^^~'~^^....,,,,~ a 4L1^ (��a�oof ~~~~^ . ^.ux�ouy ------.--_------------.------'-------' g 4.2^ �1���000 ^ ----------'-------------'--'---------.---- lA 4.3^ @un�n�� Chronicle. -_��'- uuu�u/� ----------------------------.--. I ---' Section 5: GC/MS,Volatiles ~ QwC Data Summaries ...~.,..,,~~^,~~....~^^~,,.................._......... 12 5.1~ Method Blank ' ^ Summary ----,—.-.-------------,_—'-------- 13 Blank �c_~�ni,e-'-ouuxuury .--.----.------.--.----------------- 16 5~3. . Duplicate Summary —.-------.-------------------''—'--'—'— 18 5/4^. u z� �n000uz�� Surrogate ------.--.-------..---------._-- 20 � ` � � ' ' -- m78853 Accutest Laboratories i Sample Summary ExxonMobil Job No: M78853 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 M78853-1 11/19/08 11:49 SEL 11/21/08 DW Drinking Water 118 OAKLAND ROAD 3 of 20 ® t.,lTEST. M78853 ._ , Was 1_ a b U r . (D t` i SAMPLE DELIVERY GROUP CASE NARRATIVE Client: ExxonMobil Job No M78853 Site: GESCT:01-QQA 249 Oakland Rd.,South Windsor CT Report Date 12/2/2008 10:02:30 AM 1 Sample was collected on 11/19/200Sand were received at Accutest on 11/21/2008 properly preserved,at 2.4 Deg.C and intact. These Samples received an Accutest job number of M78853.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: MSR280 X All samples were analyzed within the recommended method holding time. All method blanks for this batch meet method specific criteria. n Sample(s) M78797-IDUP 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(M78853) Tuesday,December 02,2008 Page 1 of I E 4 of 20 EAC=UTEST. M78853 :,." f�._.. _ New England %*too A e -- _ ; .:-- See :io - S ALL 1.N J"e 4:IIK-f41S.'T V - - Sample Results Report of Analysis 11 5 of 20 M78853 Accutest Laboratories Report of Analysis Page I of Client Sample ID: 118 OAKLAND ROAD Lab Sample ID: M78853-1 Date Sampled: 11/19/08 Matrix: DW- Drinking Water Date Received: 11/21/08 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 R7293.1) 1 11/25/08 AA n/a n/a MSR280 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/l 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/l 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 ND 0.50 ug/l 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/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 l,l-Dichloropropene ND 0.50 ug/1 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/1 107-06-2 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/1 124-48-1 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/l 106-46-7 p-Dichlorobenzene ND 75 0.50 ug/l 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 E] 6 of 20 ®ACCLrrES r M78853 .. -... Accutest Laboratories Report of Analysis Page 2 of 2 Client Sample ID: 118 OAKLAND ROAD Lab Sample ID: M78853-1 Date Sampled: 11/19/09 Matrix: DW- Drinking Water Date Received: 11/21/08 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/1 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/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/1 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/1 108-67-8 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/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/1 CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits 2199-69-1 1,2-Dichlorobenzene-d4 104% 70-130% 460-00-4 4-Bromofluorobenzene 79% 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 Ell 7 of 20 QACXXJTEB_. M78853 ..4._......, New England '.. .. Section 4 Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Certification Exceptions Certification Exceptions (CT) • Chain of Custody • RCP Form • Sample Tracking Chronicle Ell 8 of 20 M78853 CHAIN OF CUSTODY 495 Tech Centa West,Bldg.I - - - Marfboro,MA01752 732-329-0200 FAX:732-329-3499/3480 AoAmAAJeaa 7 - Client/Re din Infomtatlon Fadll Information - EXXONMOBIL CORPORATION•Regional Laborato Pr ram Northeast Ma I folormatbn ConaUft:tor Company Name Prnpet Nana: Groundwater&Environmental Services Inc.-WNE Mobil•S.Windsor 1t01-QQA Addrae � 426 B Ha den Staflon Road 249 Oakland Road cny Soto Zip coy Stau �• Windsor Conncecticut 06095 South Windsor CT ..a Protect CoMaa: E•rMa ErnonMoeil contaot: - - K ra Z. a a (ne. SCott Bushme SampNn'a Nam���.a r-y,r,�W _ FJO:orafoea Contact PhoMi s,1-2ias38e ® - Phones - Faxa - wasa 800-220-6119 860-688-9278 p AFE9 POP IJn•a Accutaal Collection - Preservation Sample# F a B . Field ID/Point of Collection - Time Ad Mem. bottles 3 - 118 Oakland Road , I c oe TT T—round Time Bamn•a9 da Data DeN.arade Intamedon Std.108usirwea DAY$ Approved eyJe Comnwtta/Remerk9 I� �Commerctal"A" _ �FULL CLP 11�.-...J a Day RUSH Commerctal•a• NYASP Category Please follow RCP rot"ol for a GA roundwater classification �.J S Day RUSH NJ Reduced NYA8P CaNaory 8 S Day EMERGENCY NJ FuO State Forma LOG 4- rGa 2Day EMERGENCY ❑Otltar 0 FAD Format lL—J 1 Day EMERGENCY `-�OIMt Commercial"A'•Raults Only - Emer n T/A data available VIA Lablink Sample Cuatod moat Mdocumanlodb•bwaachthnocampleechangepossuslon,Includi co" daliv li E 3G , its g _ n _ r• _ _ z r• _ 3 r: 4 4 M78853: Chain of Custody Inge I of 1 j� 9 of 20 12 M78853 L z,t Reasonable Confidence Protocol Laboratory Analysis QA/QC Certification Form + N Laboratory Name: Accutest New England Client: ExxonMobil GESCT:01-QQA 249 Project Location: Oakland Rd.,South Project Number: PO#4509333735 WBS#08 Windsor CT Sampling Date(s): 11/19/2008 Laboratory Sample ID(s): M78853-1 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 1 explain any criteria falling outside of acceptable guidelines,as specified in the Yes No CTDEP method-specific Reasonable Confidence Protocol documents)? 1 A Where all the method specified preservation and holding time requirements met? Yes No 1 B VPH and EPH mehods only: Was the VPH or EPH method conducted without Yes No significant modifications (See section 11.3 of respective methods) NA 17 Were all samples received by the laboratory in a condition consistent with r 2 that described on the associated chain-of-custody document(s)? Yes i` No 3 Were samples received at an appropriate temperature(<6°C)? Yes i✓ No Were all QA/QC performance criteria specified in the CTDEP Reasonable j, ,r- 4 Confidence Protocol documents achieved? Yes No = 5 a)Were reporting limits specified or referenced on the chain-of-custody? Yes No f- b)Were these reporting limits met? Yes 1= 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? Are project-specific matrix spikes and laboratory duplicates included in this r f 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,#1A or#113 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: 12/2/2008 Accutest New England ® 10 of 20 J2ACC:UTJ=-U7T M78853 Accutest Laboratories Internal Sample Tracking Chronicle w ExxonMobil Job No: M78853 GESCT:01-QQA 249 Oakland Rd:, South Windsor CT Project No: PO#4509333735 WBS#08 Sample Number Method Analyzed By Prepped By Test Codes M78853-1 Collected:19-NOV-08 1-1:49 BJ :SEL Received: 21-NOV-08;'By: 118 OAKLAND ROAD M78853-1 EPA 524.2 REV 4.1 25-NOV-08 16:11 AA V524STD Page 1 of 1 11 of 20 OA UTEST. M78853 ,. . , New England g GUMS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries • Surrogate Recovery Summaries ® '12 of 2 12 ACt,!"t"1St: M78853 a -. -..1 ..., Method Blank Summary Page I of 3 Job Number: M78853 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 MSR280-MB R7280.13 1 11/25/08 AA n/a n/a MSR280 The QC reported here applies tothe following samples: Method: EPA 524.2 REV 4.1 M78853-1 CAS No. Compound Result RL Units Q 71-43-2 Benzene ND 0.50 ug/1 108-86-1 Bromobenzene ND 0.50 ug/1 74-97-5 Bromochloromethane ND 0.50 ug/1 75-27-4 Bromodichloromethane NO 0.50 ug/1 75-25-2 Bromoform ND 0.50 ug/l 74-83-9 Bromomethane ND 0.50 ug/1 104-51-8 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/1 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/l 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/1 75-35-4 1,1-Dichloroethylene ND 0.50 ug/l 563-58-6 1,1-Dichloropropene ND 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/1 107-06-2 1,2-Dichloroethane ND 0.50 ug/1 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/1 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 0.50 ug/1 106-46-7 p-Dichlorobenzene ND 0.50 ug/1 156-60-5 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/1 100-41-4 Ethylbenzene ND 0.50 ug/l M 13 of 20 ®A :CLI t !ST. M78853 s �.<._._..._ Method Blank Summary Page 2 of Job Number: M78853 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 MSR280-MB R7280.1) 1 11/25/08 AA n/a n/a MSR280 cap The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M78853-1 CAS No. Compound Result RL Units Q 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 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 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 0.50 ug/1 79-34-5 1,1,2,2-Tetrachloroethane NO 0.50 ug/i 79-00-5 1,1,2=Trichloroethane NO 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 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 0.50 ug/1 108-88-3 Toluene ND 0.50 ug/1 79-01-6 Trichloroethylene ND 0.50 ug/1 75-69-4 Trichlorofluoromethane ND 0.50 ug/I 75-01-4 Vinyl chloride ND 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 0.50 ug/1 CAS No. Surrogate Recoveries Limits 2199-69-1 1,2-Dichlorobenzene-d4 107% 70-130% 460-00-4 4-Bromofluorobenzene 90% 70-130% CAS No. Tentatively Identified Compounds R.T. Est. Cone. Units Q 75-15-0 Carbon disulfide 7.26 2.5 ug/1 JN 14 of 20 QA►r.CUTEST.` M78853 -,- -- L., Method Blank Summary Page 3 of 3 Job Number: M78853 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 MSR280-MB R7280.1) 1 11/25/08 AA n/a n/a MSR280 cn The QC reported here applies to the following samples: Method: M78853-1 CAS No. Tentatively Identified Compounds R.T. Est. Cone. Units Q Total TTC, Volatile 2.5 ug/l J 15 of 20 V ACIGIL>l"! ST M78863 s ,.< I._..._, Blank Spike Summary Page 1 of Job Number: M78853 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 MSR280-BS R7278.D 1 11/25/08 AA n/a n/a MSR280 cxa The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M78853-1 Spike BSP BSP CAS No. Compound ug/I ug/l % Limits 71-43-2 Benzene 5 5.0 100 70-130 108-86-1 Bromobenzene 5 4.8 96 70-130 74-97-5 Bromochloromethane 5 5.1 102 70-130 75-27-4 Bromodichloromethane 5 4.7 94 70-130 75-25-2 Bromoform 5 4.7 94 70-130 74-83-9 Bromomethane 5 4.8 96 70-130 104-51-8 n-Butylbenzene 5 4.6 92 70-130 135-98-8 sec-Butylbenzene 5 4.8 96 70-130 98-06-6 tert-Butylbenzene 5 4.5 90 70-130 108-90-7 Chlorobenzene 5 5.1 102 70-130 75-00-3 Chloroethane 5 4.8 96 70-130 67-66-3 Chloroform 5 4.7 94 70-130 74-87-3 Chloromethane 5 4.4 88 70-130 .95-49-8 o-Chlorotoluene 5 4.9 98 70-130 106-43-4 p=Chlorotoluene 5 4.9 98 70-130 56-23-5 Carbon tetrachloride 5 5.1 102 70-130 75-34-3 1,1-Dichloroethane 5 4.9 98 70-130 75-35-4 Ij-Dichloroethylene 5 4.7 94 70-130 563-58-6 1,1-Dichloropropene 5 4.8 96 70-130 96-12-8 1,2-Dibromo-3-chloropropane 5 5.3 106 70-130 106-93-4 1,2-Dibromoethane 5 4.8 96 70-130 107-06-2 1,2-Dichloroethane 5 4.9 98 70-130 78-87-5 1,2-Dichloropropane 5 4.7 94 70-130 142-28-9 1,3-Dichloropropane 5 4.8 96 70-130 594-20-7 2,2-Dichloropropane 5 4.9 98 70-130 124-48-1 Dibromochloromethane 5 4.7 94 70-130 74-95-3 Dibromomethane 5 5.1 102 70-130 75-71-8 Dichlorodifluoromethane 5 4.3 86 70-130 10061-01-5 cis-1,3-Dichloropropene 5 4.4 88 70-130 541-73-1 m-Dichlorobenzene 5 5.4 108 70-130 95-50-1 o-Dichlorobenzene 5 5.2 104 70-130 106-46-7 p-Dichlorobenzene 5 5.2 104 70-130 156-60-5 trans-1,2-Dichloroethylene 5 5.2 104 70-130 156-59-2 cis-1,2-Dichloroethylene 5 4.8 96 70-130 10061-02-6 trans-1,3-Dichloropropene 5 4.6 92 70-130 100-41-4 Ethylbenzene 5 4.5 90 70-130 Ell 16 of 20 ®AC:CUTMSTr . M78853 Blank Spike Summary Page 2 of 2 Job Number: M78853 - 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 MSR280-BS R7278.1) 1 11/25/08 AA n/a n/a . MSR280 The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M78853-1 Spike BSP BSP CAS No. Compound ug/t ug/I % Limits 87-68-3 Hexachlorobutadiene 5 5.4 108 70-130 98-82-8 Isopropylbenzene 5 4.2 84: 70-130 99-81-6 p-Isopropyltoluene 5 4.8 96 70-130 75-09-2 Methylene chloride 5 5.0 100 70-130 1634-04-4 Methyl.Tert Butyl Ether 5 4.3 86 70-130 91-20-3 Naphthalene 5 5.0 100 70-130 103-65-1 n-Propylbenzene 5 4.6 92' 70-130 100-42-5 Styrene . 5 4.0 80 70-130 630-20-6 1,1,1,2-Tetrachloroethane 5 5.0 100 70-130 71-55-6 1,1,1-Trichloroethane 5 5.0 100 70-130 79-34-5 1,1,2,2-Tetrachloroethane 5 5.1 102 70-130 79-00-5 1,1,2-Trichloroethane 5 4.7 94 70-130 87-61-6 1,2,3-Trichlorobenzene 5 5.4 108 70-130 96-18-4 1,2,3-Trichloropropane 5 4.6 92 70-130 120-82-1 1,2,4-Trichlorobenzene 5 5.1 102 70-130 95-63-6 1,2,4-Trimethylbenzene 5 4.6 92 70-130 108-67-8 1,3,5-Trimethylbenzene 5 4.7 94 70-130 127-18-4 Tetrachloroethylene 5 5.1 102 70-130 108-88-3 Toluene 5 4.8 96 70-130 79-01-6 Trichloroethylene 5 5.2 104 70-130 75-69-4 Trichlorofluoromethane 5 4.5 90 70-130 75-01-4 Vinyl chloride 5 4.5 90 70-130 m,p-Xylene 10 9.7 97 70-130 95-47-6 o-Xylene 5 5.0 100 70-130 1330-20-7 Xylenes(total) 15 14.7 98 70-130 CAS No. Surrogate Recoveries BSP Limits 2199-69-1 1,2-Dichlorobenzene-d4 96% 70-130% 460-00-4 4-Bromofluorobenzene 90% 70-130% ® 17 of 20 gJ AC.CtJT'EST M78853 Duplicate Summary Page I of 2 Job Number: M78853 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 M78797-1DUP R7302.D 1 11/25/08 AA n/a n/a MSR280 M78797-1 R7287.1) 1 11/25/08 AA n/a n/a MSR280 Ln The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 p pp g p M78853-1 M78797-1 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 nc 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 Etylbenzene ND ND nc 30 18 of 20 - M76H53 . . ._ Duplicate Summary Page 2 of 2 Job Number: M78853 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 M78797-1DUP R7302.13 1 11/25/08 AA n/a n/a MSR280 M78797-1 R7287.13 1 11/25/08 AA n/a n/a MSR280 Ln The QC reported here applies to the following samples: Method: EPA 524.2 REV 4.1 M78853-1 M78797-1 DUP CAS No. Compound ug/l 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 nc 30 75-09-2 Methylene chloride ND ND nc 30 1634-04-4 Methyl Tert Butyl Ether 1.6 1.5 6 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 ne 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 M78797-1 Limits 2199-69-1 1,2-Dichlorobenzene-d4 97% 101% 70-130% 460-00-4 4-Bromofluorobenzene 83% 91% 70-130% EI 19 of 20 UACCUTEST. M78853 Volatile Surrogate Recovery Summary Page 1 of 1 Job Number: M78853 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 M7885.3-1 R7293.1) 104.0 79.6 M78797-1DUP R7302.1) 97.0 83.0 MSR280-BS R7278.1) 96.0 90.0 MSR280-MB R7280.D 107.0 90.0 Surrogate Recovery Compounds Limits S1 = 1,2-Dichlorobenzene-d4 70-130% S2 = 4-Bromofluorobenzene 70-130% E] 20 of 20 ®AGCUT'EST.