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HomeMy WebLinkAbout2008-2-28 - 150 Felt Road - Water Potability TestGroundwater & 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. Sincerely, ,lolin D. Moss Project Hydrogeologist Enclosure Kai— i MAAS "AZ) Senior Project Manager 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 i n New England ' ®ACC _.. IT'S ALL IN THe CHLMFS rky Y E A R S Technical Report for ExxonMobil GESCT:01-QQA 249 Oakland Rd., South Windsor CT 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 04 �N A. CpHQ A x Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Conference and/or state specific certification programs as applicable. e-Hardeopy 2.0 Arrtonvated Report Reza and Lab Director Client Service contact: Kristen Blanchard 508-481-6200 02/18/08 Certifications: MA (M-MA136) CT (PH-0109) NH (250204) RI (00071) ME (MA136) FL (E87579) 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 1 • Marlborough, MA 01752 • lel: 508-481-6200 - fax: 508-481-7753 • http://www.accutest.com ® 1 of 20 13 ACCL rrEQT. Table of Contents -I- Section1: Sample Summary................................................................................................... Section2: Case Narrative/Conformance Summary.............................................................. Section3: Sample Results........................................................................................................ 3.1: M70780-1: 150 FELT RD............................................................................................. Section4: Misc. Forms............................................................................................................ 4.1: Chain of Custody........................................................................................................... 4.2: RCP Form...................................................................................................................... 4.3: Sample Tracking Chronicle........................................................................................... Section 5: GC/MS Volatiles - QC Data Summaries.............................................................. 5.1: Method Blank Summary ......................................................................... 5.2: Blank Spike Summary ..................................................................... 5.3: Duplicate Summary ........................................ ,.............................................................. 5.4: Surrogate Recovery Summaries.................................................................................... Sections: 3 4 5 6 8 9 11 12 13 14 16 18 20 Wi= f® 2 of 20 13OCv--IJTEST 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 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 150 FELT RD o® 3 of 20 s 12 AkCCUTEST L a b o r a t o r i e s SAMPLE DELIVERY GROUP CASE NARRATIVE Client: ExxonMobil Job No M70780 Site: GESCT:OI-QQA 249 Oakland Rd., South Windsor CT Report Date 2/182008 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 All samples were analyzed within the recommended method holding time. All method blanks for this batch meet method specific criteria. Sample(s) M70778-1DUP 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 1 of 1 fM® 4 of 20 Cal O[nr_LrTEST. �® New England ®ACLU TEST PJ - IT'S ALL IN THE CH€MISTRY Sample Results Report of Analysis Section 3 Q]n 5 of 20 fl"a n rrr-.I nz� Accutest Laboratories Report of Analysis 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 Page 1 of 2 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 K23068.1) 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/1 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-Butyl benzene ND 0.50 ug/I 108-90-7 Chlorobenzene ND 100 0.50 ug/I 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/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 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 I,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/l 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 DichIorodifluoromethane 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 Q© 6 of 20 13 AccL rrr=sT. Accutest Laboratories Report of Analysis 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/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/I 100-41-4 Ethylbenzene ND 700 0.50 ug/I 87-68-3 Hexachlorobutadiene ND 0.50 ug/1 98-82-8 1sopropy[benzene 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/I 91-20-3 Naphthalene ND 0.50 ug/1 103-65-1 n-Propylbenzene 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/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/I 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/I 79-01-6 Trichloroethylene 0.64 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# l Run# 2 Limits 2199-69-1 1,2-Dichlorobenzene-d4 77% 70-130% 460-00-4 4-Bromofluorobenzene 83% 70-130% Page 2 of 2 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 j+� 7 of 20 New England -- I " k I 6-r."s AL.L SW :tle cuiam1s.TT19 Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody • RCP Form • Sample Tracking Chronicle Section 4 ECI® 8 of 20 ®0 rdACCL:J''r 11 -CHAIN OF : XTSTODY 495-1 all Cew� u'e: ldlr. �..IarlMin. A1A 111'IJ2 932.729 02NJ rn.e: ]7-39•]&9WXW i• • nr a Heal Imo�m�,un f I t ff IFICATFON M70780: Chain of Custody Page 1 of 2 FLfl® 9 of 20 03 ALc=LIiEgT_ 0 m w f u aI C c '00- m ir4 ro U M a caiEL N T C Z E i - V i N - G d ° w L Io 2 m m Ii In H Uf V .Dm(0LO0 r- - m co co I- rl- r 1- 0 0 0 0 0 5 T c c c m 0 � o c N Z N W C N O E m O O C7 r E C, C w O D O m O 0) co ai C to 0)m N o CO rn c � v ~ 0 ob N 0 a= O CD O V .c m Op v vNi ° ° ° N c 2 X ° -7a0v aiL E M70780: Chain of Custody Page 2 of 2 (J© 10 of 20 © Arx—Ilj TEST_ Laboratory Analysis QA/QC Certification Form 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 falling 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 r No r that described on the associated chain -of -custody document(s)? 3 Were samples received at an appropriate temperature (4° C t 2°)? Yes No r 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 r No f— b) Were these reporting limits met? Yes r No r 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 r 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 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. Slgnature: /--� Position: Lab Director Printed Name:: Reza Tand Date: 2/18/2008 E© 11 of 20 n ,n r+r- m rwr-cm-w 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 M70780- i Collected: 08-FEB-08 14: i 4 By: KGA Received: l 1-FEB-08 By: 150 FELT RD M70780-1 EPA 524.2 REV 4.1 13-FEB-08 17:01 RT V524STD A w Page 1 of 1 05 12 of 20 WJ.Lr-r-1 r■-=-crT ® New England ®A T� IT'S ALL 3N THE CH.iMiSTNY GUMS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries • Surrogate Recovery Summaries Section 4 F Efl® 13 of 20 PF2 j% r-•r-.o r,v---Q-r- Method Blank Summary Job Number: M70780 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Page 1 of 2 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 The QC reported here applies to the following samples: 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/1 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/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/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-Diehl oroethylene 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/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/1 106-46-7 p-Dichlorobenzene ND 0,50 ug/l 156-60-5 trans-1,2-Dichi oroethylene 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 Method: EPA 524.2 REV 4.1 EM® 14 of 20 CJ n r+r+x xrx-x=-r Method Blank Summary Job Number: M70780 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Page 2 of 2 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 The QC reported here applies to the following samples: M70780-1 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/l 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/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/1 630-20-6 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/l 96-18-4 1,2,3-Trichi oropropane 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-Trim ethyl benzene 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 ND 0.50 ug/1 75-69-4 TrichIorofluoromethane ND 0.50 ug/l 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% Method: EPA 524.2 REV 4.1 JM® 15 of 20 !J n r+r-i rrvc r Blank Spike Summary Job Number: M70780 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Page 1 of 2 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 The QC reported here applies to the following samples: M70780-1 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 Bromodich lorom ethane 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-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 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-Dichloroethylene 5 4.6 92 70-130 156-59-2 cis-],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 Method: EPA 524.2 REV 4.1 ®® 16 of 20 © 0['Y_I.rrr-=nT_ Blank Spike Summary Job Number: M70780 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT Page 2 of 2 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 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/1 ug/l % Limits 87-68-3 Hexachlorobutadiene 5 5.4 108 70-130 98-82-8 Isopropyl benzene 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-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-Bromofl uorobenzene 102% 70-130% (a) Outside control limits. Associated samples are non -detect for this compound. IM© 17 of 20 Duplicate Summary Page 1 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.D 1 02/13/08 RT n/a n/a MSK820 The QC reported here applies to the following samples: M70780-1 CAS No. Compound M70778-1 DUP ug/1 Q ug/l Method: EPA 524.2 REV 4.1 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 -Butyl benzene ND ND nc 30 98-06-6 tert-Butyl benzene ND ND ne 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 ne 30 106-43-4 p-Chlorotoluene ND ND nc 30 56-23-5 Carbon tetrachloride ND ND ne 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 ne 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-D ichloroethylene 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 o® 18 of 20 M Ar`f-1 tTCCT Duplicate Summary Page 2 of 2 Job Number: M70780 Account: MOBILSS ExxonMobil Project: GESCT:01-QQA 249 Oakland Rd., South Windsor CT ;ample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch ✓170778-1DUP K23066.D 1 02/13/08 RT n/a n/a MSK820 470778-1 K23065.1) 1 02/13/08 RT n/a n/a MSK820 The QC reported here applies to the following samples: M70780-1 CAS No. Compound 87-68-3 Hexachlorobutadiene 98-82-8 Isopropylbenzene 99-87-6 p-Isopropyltoluene 75-09-2 Methylene chloride 1634-04-4 Methyl Tert Butyl Ether 91-20-3 Naphthalene 103-65-1 n-Propylbenzene 100-42-5 Styrene 630-20-6 1, 1, 1,2-Tetrachloroethane 71-55-6 1,1,1-Trichloroethane 79-34-5 1,1,2,2-Tetrachloroethane 79-00-5 1,1,2-Trichloroethane 87-61-6 1,2,3-Trichlorobenzene 96-18-4 1,2,3-Trichloropropane 120-82-1 1,2,4-Trichlorobenzene 95-63-6 1,2,4-Trimethylbenzene 108-67-8 1,3,5-Trimethylbenzene 127-18-4 Tetrachloroethylene 108-88-3 Toluene 79-01-6 Trichloroethylene 75-69-4 Trichlorofluoromethane 75-01-4 Vinyl chloride m, p-Xylene 95-47-6 o-Xylene 1330-20-7 Xylenes (total) CAS No. Surrogate Recoveries 2199-69-1 1,2-Dichlorobenzene-d4 460-00-4 4-Brom ofl uorobenzene M70778-1 DUP ug/1 Q ug/I ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.2 1.2 ND ND ND ND ND ND ND ND ND ND Method: EPA 524.2 REV 4.1 Q RPD Limits nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 nc 30 Tie 30 nc 30 nc 30 0 30 nc 30 nc 30 nc 30 nc 30 TIC 30 DUP M70778-1 Limits 84% 78% 70-130% 85% 86% 70-130% cn w M® 19 of 20 n ^ r—i—i R=CT Volatile Surrogate Recovery Summary 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 Sl 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 79.0 92.0 Surrogate Recovery Compounds Limits SI = 1,2-Dichlorobenzene-d4 70-130"Io S2 = 4-Bromofluorobenzene 70-130% Page 1 of 1 CE® 20 of 20 r3 prr_L rrGaT