SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244403 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 02/28/2006 Signature Name: Richard C.

M M 6 _ 13> RECEIVED OPPTNCfC ZWJUL-7 AMII: 00 2 May 2003 ToWMUE1:2P.aaS0Ars.0yhEEiPFnnae.gvsnDttinoroson(ymMn, lmDvianaieCilnnaiCktaa2ol0Ad4Pev6reo70nt4eu0ce5t,iMoNn)WAgency From: Katie Smythe, on behalf of the Telomer Research Program Subject: TRP Document Submission cO0sstuo0un1bmd2mbim1eei.shtotanehTldlafhyveoteoksfenattohhlsrweeuemanETdPemaylAsoab8mrefi-oeee2snrrTiaRsneruceelbolsufmemosairiertoctrsnehtBudiPdnAtiroeoAlscgtdhorcmeahomoAninldgi(u(sTeCtcnrRtsaceFPtydin)v,bfCeoytHhrRtehotehefCceooHTlTrlRdoiROwP2PH.i2n)o6g.n[sTDCtuhoAdecSykf#iesntu6aIm7lD8rm:e-3paO9roi-rPe7tsPswTafor-he2ric0thh0e3is-sealso 231))) 4) 5) IAPAP8Sn-uhosq2rylsvuuiaisTfevbyiioecoeilluawdioRlsti-my8taCS,h-te2htarMaaenAbBmdCiilclcioVAirstoonytlahrfncpyiooourolfmhcP:rlo8raePol-Stu:2ropaserelTAsymArsetcuioAslueorsnssteameesyola(elO3fyarr8rB/ae-l2pEATo.Trloccetxosol)iolhclmoi/tleyMra-saBmFaAiaFxllueicadnonchDto-iool:MsneUiocMflrtopreasHthovomiodeleRt SevpeercsteruMmu,Wtataitoenr Wttmhheeeetfshwiaonmodauslelrdadenopadcopkrfptiersnte.dcfiiinlaegtessohaaltohvniangtgtwheeiatchrehtahsdeteurfduhylalssruetmhpeomrbta.erynPealfeniatdsoerfelaleatstehmdoerftiknonavolewrrevpiifeowyrtouoinfnctelhueeddesadtundtooytghoeetbrhjceeocrptiinyveosf, N(yCoouBnIeh)aouvfnetdhaeenryaTtdStaiCfcfhAice.udltfPiiellesesaoscpeoenlnetitanimgnetihnkefnoaortwmtaacithfioeydnoufcillhaeaismv. eedanaysqCuoenstfiiodnenstaiabloBututshineedsoscIunmfoernmtsatoiornif Best regards, TI RP Administrator

GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at Off-Site Wells in Decatur, AL in March/April 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 P hone:610-701-3761 Author Susan W olf 3M Environmental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

AR226-1030A039 BACK TO MAIN 3M Environmental Laboratory Report No.

BACK TO MAIN May 3, 2001 . . .

BACK TO MAIN Study Title Microbial Metabolism (Biodegradation) Studies of Perfluorooctane Sulfonate (PFOS) IV.

TOXICITY TO AQUATIC PLANTS (Freshwater Diatom, Navicula pelliculosa) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample obtained from 3M production lot number 217.

3M Medical Department Study: T6316.1 3M Medical Department Study: T-6316.1 Analytical Report: FACT-TOX-001 LRN-U2103 Analytical Report: FACLTRTNO-UX2-010013 Study Title 104-Week Dietary Carcinogenicity Study with Narrow Range (98.1%) N-Ethyl Perfluorooctanesulfonamido Ethanol in Rats Analytical Laboratory Report Title Determination of the Presence and Concentration of PFOS, PFOSA, PFOSAA, EtFOSE-OH, M556, and PFOSEA in Serum and Liver Samples of Crl:CD(SD) IGS BR Rats Exposed to N-Ethyl Perfluorooctanesulfonamido Ethanol Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date June 06, 2001 Performing Laboratories Liver and Serum Analyses 3M Environmental Laboratory Building 2-3E-09, 935 Bush Avenue St.

M2Z6- 10if3 TELOMER RESEARCH UPDATE MEETING NAME O R G A N IZ A T IO N DECEM BER 18, 2001 TELEPHONE # 9:00-11:00 A.M.

f January 30, 2002 NAME A fL z - z , _ io s~ y - FLUOROPOLYMER MANUFACTURERS GROUP MEETING ORGANIZATION TELEPHONE # 2:00-4:00 PM E-MAIL dO ON .NiVlNQQ o w m Itic A VWNO- C \n .A U 3 _______ L v| i W Vipy;' 7 ' 7> & Pf\ / o p p r /?

x NflK* 532 PRO'*'1' ^ R <9 ^ 3 7 Lf AR.27.G_ I0<?

H - \Zb IN THE CIRCUIT COURT OF WOOD COUNTY, WEST VIRGINIA JACK W.

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