AR226-2156 Catherine A Barton A 07/08/2001 04:23 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont cc: Debbie J Mulrooney/AE/DuPont@DuPont Subject: Rob, I hope you had a nice vacation last week.

Larry R.

AR226-3636 INTERIM REPORT #1 Analysis of Oakdale Water Samples STUDY TITLE Analysis of Perfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using LC/MS/MS for the 3M Cottage Grove Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE May 19, 2005 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 .

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3M 3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-06-E-03 St.

3M Specialty Materials 3M Center St.

Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1 8 0 0 /Cincinnati, OH 4 5 2 0 2 -3 9 5 7 /Tel: 51 3.3 8 1 .2 8 3 8 /Fax: 513.381.0205 / www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing R o b e r t a .

Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1 8 0 0 /Cincinnati, OH 45202-3957/Tel: 513.381.2838/Fax: 513.381.0205/ www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert a .

0730 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (COROPHIUM VOLUTATOR) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

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

P # te 7 I UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 F V Z -O S o l- /3 7/ M arch 20, 2001 FYI-00-00137B a 9 6 - ,0 3 OFFICE OF PREVENTION.

GLP10-01-02.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 238586 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: 07/29/2005 Signature Name: Richard C.

BACK TO MAIN Im p in g er Studies o f V o la tility o f FC -95 and FC -143 Intoduction and Purpose: Thermospray mass spectrometry was used to quantitate a number of samples for FC-143 and FC-95.