. 10500 157 Attachments to Letter to C.

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PF pis senevt 1. nti, Dm. 502te ttn = Ta TL [er Sedan agente LBC petsit SSamyE------ Eemtepon comer: TR CAen r ST acerPart 721 gonerl informationcontact Tolfcation ropioments in 40CER ti": etramer Aogemen(o0Am) en Poon AcToN: Final rule.

Telomer Research Program FV De ACC TR = Clariant TUPOND -------------------------------- RMuetpaotritonTitAlses: aPyurwiiftiheda Co-n2fiAlrcmoahtoolr:y Salmonella Assay Escherichia coli/Mammalian- Microsome Reverse Author(s): Leon F.

AR 286 -- 14ST T |Cide -- .

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Fomareniva TECHNICAL REPORT SUMMARY TO: TECHNICAL COMMUNICATIONS CENTER -- 201-20 (1mporan--t If porti prinonteotdh siodfpeapse,sndtwocopietso TCC.)

BIOACCUMULATION TEST SUBSTANCE Identity: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as N-MeFOSE Alcohol, FC-790, or FM-3925. (1Octanesulfonamide, N-methyl-1,1.2,2,3,3,4,4,5,5,6,6,7,7,88,8heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 24448-09.7) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

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ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to aFsC-P11F6O,AFaC-m1m2o6n,iFuCm-1s6al9t,, AFCm-m1o4n3,iuormapseraflmuacjroorocctoamnpoaotnee,nPtFoOf, FX-1003.

Edd AT FYL- 0600-1B3To7eg5n.d.6 .

AR 226_ 06S] PFOS Repeat Dose - Ib 000101 CIYTICS mse 3005 gages vo wor INCORPORATED 301-921-0168 Fax: 301-977-0433 Client: {3BS3MMeETaMCRuEERNDNITsEEECrRAeL2-30DS-EEa2P2A-tR0T2MEaNTno Date Reported: 05/02/2000 Date Date RCeoclelievcetde:d: 0042//1280//21090909-02/26/200( Client ro.itt1e4n5t2ion: Study: 6 ANDREW SEACAT HONTH PFOS STUDY Species: CYNOKOLGUS Rxooen$geas.ioGnp sex hee TSiantg CShORoEke EMRbR RWUSpE Wpohh: 2223 o08oa3oas8s8a8aRi1iid33ds8e fFHToaosesasaeeseann 111 e eecadds mWTMawWe TT E B B #8 E B Bog 3$33 A[A8dReaie Keane Ran 8 eeBB MBoHr B884 oga88 $ii sbetan E 4BO.

AR 226 -- 0745 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIAMAGNA) JESTSUBSTANCE Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-203C `1a,n1d,2L,-25,434,03.,4,(41,-5O,c5t,a6n,6e,s7u.l7f,o8n,i8c,8a-chiedp,tadecafiuoro-, potassium salt, CAS # 2795-39-3) Remarks: The 3M production lot numberwas 501.

AR 226 -- 079/ ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE Identity: ArefmeirxrteudretocaosntPaiFnOiSn,g pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twhoficFhC-m2a0y6aolfsoL-be. 3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).