p. 1 3M Study 06-375 Substantiation Questions TSCA SANITIZED 14Yzzc-xzy MTDID 6675 1 .

Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 /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.

BIODEGRADATION EF7T-5 TEST SUBSTANCE Identity: PPeFrOflSuoDroEoActsaanlet,suFlCf-o9n9a,teo,rD3EMASsaalmtp;lmeaNyoa.l2s.o b(e1-rOecftearnreesduftofoansic acid, 1,12,2,3.3,4,45,5,6,6,1,7,8,8,8-heptadecafluoro-, comp. with 2,2"iminobis[ethanol] (1:1), CAS # 70225-14-8) (Raepmparrokxism:atTeelsyt2s5am%ptleestissuabmsitxatnucree aofndth7e5te%stwastuebrs)t.anAclevianlwuaesterreported creolnacteenttoratthiiosnmiofxtthuree.fesNtoscuablsctualnatcieonisn twheerteesmtasdaemptloea.djust for the actual METHOD GTMyeLptPeh::odNA:oerNoobticnoted.

-- - i | | | | | - - AR2IE- 0106 EFE-I3 TOXICITY TO AQUATIC PLANTS (E.G., ALGAE) EST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,56,6,7,7,8,8,8- heptadecafiuoro-, potassium salt, CAS # 2795-39-3) Remarks field: "The test substance is a white powder (3M Lot 583) of uncharacterized purity.

FE-RO ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: aPPceFirdOf,lSu1o,Dr1oE,o2Ac,t2s.aa3nl,et3,s,uF4lC,f4-o,9n59a,,t5e,o,6r,D63,EM7A,7S,saa8lm,t8p;,l8me-ahNyeop.atla2ds.eocba(fe1l-urOoecrftoea-rn,reescduoltfmoopnadis.c: with 2,2"iminobislethanol] (1:1), CAS # 70225-14-8) R(aepmparrokxism:atTeelsyt2s5am%ptleestissaubmsitxatnucree oafndth7e5te%stwastuebrs).tanAclevianlwuaetserreported relate to this mixture.

ARI26-0232 MUTAGENICITY TEST WITH T-6357 CORNINGHazleton SLELRN flan 5p - hh Sol IN THE SALMONELLA - ESCHERICHIA COLIMAMMALIAN-MICROSOME REVERSE MUTATION ASSAY FINAL REPORT AUTHOR Timothy E.

T 3253.5 Ore Teratology Study of mi-3422 in nats Experinent Ko.: ---- Soatuatee Dosing Testes: study bisector: ossoroo0 SSBattteBtayum dv,alWuiano tmieosnorsLaboratory August 19 to september 4, 1980 2 0. contnee <A SeCnioSr Eesraeiscoh nTechnologis)t-282%-% AStianyaDRireecpeoertto rereieiagy RLe seEaCaze0 nm4Vevp8 eorminrpaB, ruWyde,Pdat5choloh1g-is2tt2-9,)eE HManaagesre,esPsathTOoleslet-etoxicolYog1y 3/541 Satery Prateneion beset 004233 1.

FY1-or0/-1378, a tong nd st Madcon .

Interim Report #2 Epidemiology, 220-3W-05 Medical Department 3M Company Paul.

SOIL ADSORPTION - REVISED TEST SUBSTANCE sS i T EETl ram ry productionlotofFC-95.

ARRAG -- 1366 LABORATORY-SCALE THERMAL DEGRADATION OF PERFLUORO- 'OCTANYL SULFONATE AND RELATED SUBSTANCES TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C1a1F.2127,S3O,53K4,"4..5(,15-,O6c,t6a,n7e,s7u,l8f,o8n,i8c-ahceipdt,adecafluoro-, potassium salt, CAS # 2795-39-3).

BIOSEARCH.

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AR226-0500 ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; mayalso be referred to as P11F6O, AFCa-m1m26o,niFuC-m16sa9l,t,oArmFmC-o1n4i3.um(pOecrtfalnuooircooacctiad,nopaetnet,aPdeFcOa,fiFuCo-ro, ammonium salt, CAS # 3825-26-1) R14e3m.arIkt'ss :puritTyhweas3Mnoptrsoudfufcitciieonntllyotchnaurmabcteerriwzaesd,8t3h.oTuhgeh test sample is FCcurrent information ainnddicCastepseritflisuoaromiaxntaulroegoufe9c6o.5mp-o1u0nd0s%.test substance and 0 -- 3.5% Cs, Cr, METHOD: Method: Not noted.

R205 ATtotxaiccohlmoegnytsSttuodLieetstaenrdtoOCt.heArueIrnfdoartmeadtiMoanyon25P,F2O00A0 [[ amonrotors| Update to Submission ofMay 18" 1) tLeetrtaetrolforgoymstEu.diMeasr,sdhaatleldJDoehcnesomnbetro W7,il1l9i8a3m.