AR 236 - 3246 428 5102D46a7yO8:nlSuGbashvraogneiSeuTdoxyiciintyRts PS TRADE SECRET RAG 324-6 Dupon6554 Study Title 'H-24678: Subchronic Toxicity 90-Day Oral Gavage Study in Rats Volume 4 of4 Laboratory Project ID: DuPont-6554 "TEST GUIDELINES: U.S.

R236- 3317 499 AR 226-3317 .

CorporatHeealthPhysics 3M Center2,20-2B-02 CorporatoeccupationMaeldir-ine PO Box33220 CorporatPeroductResponsibility St.PaulM,N 55133-3220 CorporatTeoxicology 6517331110 3M MedicalDepartment FluorochemicaElxposure(Serum)AssessmentofDecaturChemical and FilmPlantEmployees Historicalelmyp,loyeesatthe3M Decaturchemicapllanthavevoluntariplayrticipaitned a biennialfluorochemicalmedical surveillancperogram.

CorporatHeealthPhysics 3M Center2,20-2E-02 CorporatOeccupationMaeldicine PO Box 33220 CorporatPeroductResponsibility St.PaidM,N 55133-3220 CorporatTeoxicology 6517331110 3M MedicalDepartment SerumFluorochemictarlendsofout-of-counrteysidenitnsCLUE 1(1974a)nd CLUE ][([1989e)pidemiologiincvestigations.

AnalysisforfluorochemicalisnBluegilflish.

I I 96-Hour Acute T DEA saltof PFO ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:PerfluorooctanesulfonatDeE,A saltm;ay alsobe referredtoas PFOS DEA salt,FC-99, or3M Sample No. 2. (1-Octanesulfonic acid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafcloumoprdo.-, with,2,2'-iminobis[etha(n1o:l1]),CAS # 70225-14-8) Remarks: Test sample isa mixtureofthetestsubstanceinwater (approximately25% testsubstance and 75% water).Allvaluesreported relatetothismixture.No calculationwsere made toadjustforthe actual concentration,otfhe testsubstance inthetestsample.

EFFECT OF SELECTED PERFLUORO-COMPOUNDS P-OXIDATION KendalBl.WallaceP,h.D.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acemtaaytea;lsobe referredtoas PFOSAA, FC-128 oras themajor component of FC-127, FC-129, FC-109,or FC-109-X.

C)--aTleratology *-tudyof T-299SCoC in P@r-a-@ Mcoeriment No.: Conducted At.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorooctanoiaccid;may alsobe referredtoas PFOA, FC26, or FX-1001.

CAS Number 2991-51-7 3M Company Voluntary Use and Exposure Information Profile Perfluorooctane sulfonamido ethyl acetate I.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfoniaccid)(CAS # 2795-39-3).

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INTERIM REPORT # 17 - Analysis of Sediment and Water Samples STUDY TITLE Analysis of Perfluorobutanesulfonate(PFBS), Perfluorohexanesulfonate(PFHS), and Perfluorooctanesulfonate(PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REOUIREMENTS 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 June 29,2007 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-0 1-B-10 St.