ACUTE TOXICITY TO AQUATIC INVERTEBRATES (E.G.

: AR 226 _ 08ST TOXICITY TO AQUATIC PLANTS IESTSUBS ~~ T0 A0 N0C 0E 0 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF.

Test Substance: Toxicological Summary Pros Dietary Acute Northern Bobwhite Study Perfluorooctanesulfonate (PFOS) Structure: Remarks: p1o-tOacstsaineusmuslaflot,niCcASa#cid2,7951,.13,92..32.3,3,4,4,5,5,6,6,7,7.8,8,8-heptadecafluoro-, The test substance is stored under ambient caonwdhiittieonpsoawndderpuGriMty wloats#o21r7g)i.nallTyhedestaemrpmlienewdatso bteechn9i0q.ue4s9.% determined Ibny 10 a LsCu/bMsSeq,uen'tH-aHnaMlRy,sis "oFf-tNhMeRestandsubcslteamnecnet,alpuraintaylwysaess be 86.9%.

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AR226-3003 '-- ' ;a -'.?""

AR226-3094 TRADE SECRET FINAL REPORT Study Title H-23005: IN VITRO MAMMALIAN CELL GENE MUTATION TEST WITH AN INDEPENDENT REPEAT ASSAY LABORATORY PROJECT ID: HLO-1998-01211 AUTHORS: Richard H.C.

Corporate Health-Physics CorporateOccupationalMedicine CorporateProduct Responsibility Corporate Toxicology 3M Medical Department 3M Center,220-2E-02 PO Box 33220 St.Paul,MN 55133-3220 651733 1110 Working Memorandum on Data QualityAssessment(oftheMean and Range of PFOS (ppb)LevelsinCurrent and HistoricaHluman Populations) ThisreportdocumentsBattellee'vsaluatioonfthestatistiqcuaallitaynd defensibiliotfy 12 datasourcesof serum perfluomoctanesulfona(tPeFOS) levelsfound innonoccupationahluman populations.These datawere summarized inthe3M whitepaper, "PerfluorooctanSeulfonate:CurrentSummary ofHuman Sera,Healthand Toxicology Data" providedtotheEPA inJanuary,1999.The purposeof thisinitiaclollectioonf human non-occupationaslerum samplesby the3M Medical Department was to determinethepresenceor absenceofPFOS inhuman blood from currentand historical samples. 3M requesteda reviewofthesedata by Battellteo determinewhat additional inferencescouldbe obtainedby analysesofthesedata.Battellsetatisticiafneslthatonly thepooled serum from the 18 U.S.blood banks was judged defensiblefora statistical analysis.Of thesedata,thegeometricmean PFOS blood levelwas 28.2ppb (95% confidenceinterva2l3.9-33.3).Regionaldifferencecsouldnotbe explainedwithout additionadlata and analyses.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acemtaaytea;lso be referredto as PFOSAA, FC-128 or as the major component of FC-1 27, FC-1 29, FC-1 09, FC-1 09-X or Rl 904.

BIOCONCENTRATION TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may also be referredtoas PFOA ammonium salt,Ammonium perfluorooctanoateP,FO, FC116, FC-1 26, FC-169, or FC-143.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may also be referredto as PFOA ammonium saltA,mmonium perfluorooctanoateP,FO, FC-1 16, FC-1 26, FC-1 69, FC-1 43, or as a major component of FX-1003.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-603F.

BIODEGRADATION (MANOMETRIC RESPIROMETRY -AEROBIC) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-3041. (1Octanesulfonicacid)(CAS # 2795-39-3).

MULTI-CITY STUDY FIELD REPORT FOR CLEVELAND TENNESSEE AND DECATUR ALABAMA - BATTELLE DUXBURY ACTIVITIES for ProjectNumber N100672-01 submittedto July 9,1999 Prepared by ScottC.

AR226-2038 "Roger J.

DETERMINATION OF THE MELTING POINT/MELTING RANGE OF PFOS WILDLIFE INTERNATIONAL LTD.