ACUTE TOXICITYTO AQUATIC INVERTEBRATES - Ceriodaphnidaubia TEST SUBSTANCE IdentityN:-Ethylperfluorooctanesulfomnaaymaildseo;be referrteodas U 1464, ETFOSA, ETPOSA, F-6309, orFX-1 2. (1Octanesulfonamide,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluo ro-N -ethyl-C,AS # 4151-50-2) Remarks: Materialisa white solid.Sample purityand lotnumber were not recorded.

F-xperiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Oral Toxicity Screen with T-3421 in Albino Rats 0883A.RO287 Safety Evaluation Laboratory Riker Laboratories, Inc.

3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY ProtocoflorStudyNo.

CORNINGHazleton MUTAGENICITY TEST WITH T-6357 IN THE SALMONELLA - ESCHERICHL4 COLIMAMMALIAN-NECROSOME MUTATION ASSAY FINAL REPORT AUTHOR Timothy E.Lawlor,M.A.

InternatioRneaslearcahndDevelopmenCtorporation SPONSOR: COMPOUND: SUBJECT: 3M Company FluoradO Fluorochemical FC-143 Ninety Day Subacute Rat Toxicity Study.

MICROTOX@ TOXICITY TEST TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium salt,Ammonium perfluorooctanoateF,C116,FC-126,FC-169,orFC-143.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component of FC-201. (1Octanesulfoniaccid,perfluoroalksyulffonatesalts(5)+ (5140P)) (CAS # 2795-39-3) Remarks: The 3M productionlotnumber was not noted.

TOXICITYTO AQUATIC PLANTS TEST SUBSTANCE IdentitAy:mixturceontainipnegrfluorooctanesulwfhoincahtmea,y alsobe referredtoas PFOS, FC-95,oras a component ofFC-203. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO AQUATIC INVERTEBRATES (COROPHIUM VOLUTATOR) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referredtoas PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfoniaccid)(CAS # 2795-39-3).

a ~~ Ps i -- AR R26 -- SHO 14 000196 ARBAG _ BUO @ . . | | | i ~ BD S113) E. 1.

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#f| ~, ~~, AR226 -- 473 77 000721 | ARG -3473 8i i E5R8E iglglele 5= & os | gresif 2 (ils ~ fii i 8 000722 DPuFPOonAtCoBmlpoaondy Ch2a0m0beTresloWmoerrsks | | | [Operators]Mech | a Supnerviisicons [Male |TM "Male |Wale|Femaie| [Ta 353o 1 sos ss] ] a4) [de 133] s a3 ]| [72078 joe8 ] ]| see [at--e --rrs[s se [sss or|] [so 2831 a ------ we (seo [mo 1 [Count1{ 18]sqio 7f| [[MAT ivna 7 3480]0 1835.:930503 ] 3790..7610]7 3b2455000]] [[MMeadxian_|175200,7050]] 77963.0800] 71177..0500] 365844..5000]] [StaDev| 167.16] 60.35] 37.11] 4e5.08] BaPrrbeapraareJ.dDDawesocn,eGmH0,b,2eG0S0rP4 000723 CShPparomobnnerpnseoDrsss 204 ToomersSommary [I ATmaTATWrarlreeJ-- AISou|pm|] [18ass] 111| 400] 400] 143 [2422s 05) 1a a1] sos] |----2268 6] 81] 39] D [re war---- awa] I -- 5 so] 86s]| [85 sss s] ]| [2s daz] [58 isl ] asa [Bse as a NC] -- Emi I] |I [78 zee 8 saa [isda [389s] mo 79 I I 283E 2 = v1I83 [SI 085|] S0585]--| [10068] [[i s5e0l8m5 2a0--8--] 7)I-- [[C hC CoeudntT Ter 3 z55T 58 ] 8eee 53 2r06 i]| [[D s1 Mtaax 7e 20 151v .7723100 ..7000]s 0 2678] 49.0]0] Psi mig he Prepared December 9, 2004 000724

--_-- AR 226 _ 3566 IMENVIRONMREENRTOARLTLNAG.BOER9A8T5O6R6Y% Amended Final Report Analysisof PFBS, PFHS, PFOS and PFOA in Water Samples Collected at 3M Guin Laboratory Request Number: E05-0662 Method Requirement: 3M Method ETS-8-154.1 (modified) Testing Laboratory 3M EHS Operations. 3M Environmental Laboratory Building 2-36-09 935 Bush Avenue St Paul, MN 55108 Requester Gary Hohenstein 3M Building 42-02-E-27 PO Box 3331 `Saint Paul, MN 55133-3331 Phone: (651) 778-5150 Fax (651) 778-7203 `SMCONFIDENTIAL 2 Pago 101 13 34 ENVIRONMHEENRTARLLHAOB.OREAosTOouRsY SaHw EETniemiocnimLeenmaaaoaabnReerinspttoAaynanlge,rValk. rRes.genP,H0. , EoRnCoraayrCCaotosanr, nspepc ea Prsoofessorc LoSbaOvposn Parse!

-- QUID January 23, 2006 Via Federal Express #226. 382 } PNR I72.024 :RECEIVED e ShonotiHs 73 Sy orartory. so gsuma TOL No8wnca ZEHQ. 0601-00374 Geng (- 394 Document Processing Center (Mail Code 7407M) `Room 6428 Attention: 8(e) Coordinator OUfSf.icEenovfirPoonllmuetnitoanlPrPreovteencttiioonn aAngdeTnocxyics 1201 Constitution Ave., NW `Washington, DC 20460 Dear 8(c) Coordinator: CeOntain py =g Io CBE 9% e To z & 8EHQ-0381-0394 Linear/Branched (78:22) (L/B) => Linear (L) : Branched [58:42 monomethyl/isopropyl}(B) `This letter is to follow-up on our correspondence with the Agency of September 10, 2004, concerning an oral repeated dose toxicity study in ratsand mice with the above-referenced test materials.

P. 1 36z1 PERFLUOROOCTANE SULFONATE (PFOS) Dossier prepared in support for a nomination of PFOS to the UN-ECE LRTAP Protocol and the Stockholm Convention The dossier is prepared by the Swedish Chemicals Inspectorate (Keml) and the Swedish EPA, Sweden August 2004 000288 p2 Preliminary Risk Profile PFOS 2 25 June 2004 000289 p. 3 Prelimina ry Risk Profile PFO S Contents EXECUTIVE SUMMARY .....................................................................................................4 INTRODUCTION .................................................................................................................... 6 PART I.