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PHOTODEGRADATION EFT7-2 TEST SUBSTANCE Identity: Perfluorooctanesulfonate; FC-95. (1-Octanesulfonic may acid, also be referred to as PFOS or 1,1,2,2,3,3,4,4,5,5,6,6.7.7.8,8.8- heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Testing is in progress. 00211 PHOTODEGRADATION TEST SUBSTANCE Identity: PFeCr-f9l5u.or(o1oc-tOacnteasnuelsfuolnfaotnei;c macaiyd,a1l,s1o,2b,e2.r3e,f3e,r4r,e4d,5t,o5a.s6,P6.F7.O7S.8o.r88heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks field: The test substance is a white powder.

AR226-00 33 LEY ACUTE EASTERN OYSTER SHELL DEPOSITION TEST SUBSTANCE Identity: PFCe-r9f5l.uor(oo1c-tOancetsaulnfeosnautlef;moacnaiiydc,al1s,o1,2b.e2,r3e,f3e.r4r,e4d,5t,o5,a6s,6P,7F,O7,S8.o8r,8heptadecafluoro-, potassium salt, CAS # 2795-35-3) 3ReMmlaort knsu:mbTehre2t1e7st. sSuabsmtpalnecewaissastwohrietde upnodwedrera.mbSiaenmtplceonwdiatsiotnaskepnriofrrotom teelsetmiengn.taPluraintayldyesteesrmteicnhendiqtouebse. 90.49% by LC/MS, H-HMR, "*F-NMR and METHOD TMyeptheo:d:StaOtiPcPaTcuSte850.1025 GLP: Yes YSpeeacriceso:mpClreatsesdo:stSrteuadvyircgoimnpiclaeted 1999.

AR226-00%3 pros `A 96-HOUR STATIC ACUTE TOXICITY TEST `WITH THE FATHEAD MINNOW(Pimephales promelas) FINAL REPORT `WILDLIFE INTERNATIONAL LTD.

3M MEDICAL DEPARTMANT CORPORATE TOXICOLOGY To: John Butenhoff Andrew Seacat From: Marvin Case Date: 5 April 2000 Subject: Liver Slide Review conclusons re 1 have completed the PFOS chronic mstyudmyi.crMosycofpiincdirnegvsiaerweofltishteed,lbivyergrsoeucpt,ioonns of the 14-week attached pages.

RGoo0.riBnokH7as54t5oo r7s4s ro ric 3301 Kim ld, Mion, bry2414471 608.241.7227 Fax AR226032\ CORNING Hazleton Sponsor: 3M St.

: 5p AR 226 _ 10] MR U2 "Toxicology and Descriptive Biology Key Elements Acute Toxicity Data Exists x Repeated Dose Toxicity x Developmental Toxicity x Key Findings Ei - a2 Low to moderate toxicity: oral/dermal/inhalation Irritation potential defined Not a sensitizer Oral/dermal/inhalation rodent/non-rodent Liver primary target organ Potency defined Oral/inhalation rat/rabbit = = s 3% ~~ = Z- 58 8 Fetus not more sensitive than maternal Nanootmaaslsioecsiated with structural - "nntain NO CBI | Toxicology and Descriptive Biology Key Elements Reproductive Toxicity Genetic Toxicity Ecotoxicity - Acute Data Exists - x x Key Findings Reproductive organs not a target Functional reproduction not defined Point mutation - Ames negative Chromosomal effects- in vivo, in vitro - negative Not a genotoxic agent .

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R3 3M + 3M Emironmental Technology PRO BoNx 33331sam asi 7I8 a2 AR226 _ 1095" 8 mLL 51263 May 10,2002 Document Processing Center (7407) OfficeofPollution Prevention and Toxics U1.2S0.0EPnevninrsoynlmveanntiaalAPvreontuecetiNonWAgency Washingion, D.C. 20460 FYI ORPEPCTEICVBEID A02JUN~4 AH): 1 - 0k02_01378 Attention: For Your Information Docket - Docket No.

AR 226 _ 1194 Document 10 of 20 ` COMPILATION OF HISTORICAL C-8 DATA DUPONT WASHINGTON WORKS MAIN PLANT AND LANDFILLS : am } CONTAIN NC CRI 000492 EID168057 * JABLEOFGONTENTS ~~ 11.21 DC-O8CHUiMStEONriOcaTlGLAaIbZOATOatNO.r.y.A.R.A.I.S.S.I....oer rvec neoere1-11-1 13 PhysicochemicalDataforAmmoniumPer{luorooctanoate (C-8)............1-2 14 RERCTCNCES.rr " emma 20 Washinglon WOrkS Main PION... 21 Introduction.d......

Telomer Research Program AR226-1420 Report Title: 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoroAlga, Growth Inhibition Test with Scenedesmus subspicatus, 72h, Limit Test with the Saturated Solution Author(s): Dirk Scheerbaum RECEIVED OPPT NCIC 2003 July 18 12:00PM Contractor: Dr.

Co Maa6- 1477 TAFT, STETTINIUS & HOLLISTER LLP ComGTOnERY hor 4ros \ TE fl r EeEreEaen 425 WALNUT STREET, SUITE 1800 symm CINCINNATI, OHIO 45202-3957 F-- AX 313-- 3610205 ---- wengaamon BEfR-Bo- 373 8EHR - 0803 -- 00373 August 7, 2003 TELECOPY AND FEDERAL EXPRESS i$ 2070, ree JOR...L Fax S EH.

AR226-1483 CGMW5 !

ENCoomioogm n.weto5n370t7c7545 + Dlr 1100 Kan Bods Madion, 1 5374 608.241.4471 608.241.7F2a2x7 Sponsor: mn St.