AfiOX-O 45/ C O R N IN G Hazleton Sponsor. 3M S t Paul, Minnesota FINAL REPORT Study Title: 5 Daily Dose Oral Toxicity Study with T-6669 in Rats Author: Susan M.

AR226-2956 FOR DU POUT USE ONLY Du Pont HLR 214-91 Study T itle Eye Ir r it a t io n Test with in Rabbits Author John W.

m AR226-3027 Study Title Skin Irritation Test with H-21209 in Rabbits Laboratory Project IP Haskell Laboratory Report No. 623-95 Author Tracy A.

CONFIDENTIAL AR226-3132 ZpOISL I DPT 443/984760 TOXICITY STUDY BY ORAL ADM INISTRATIO N TO CD RATS FOR 4 W EEKS Sponsor DuPont Specialty Chemicals.

M 226 _ 077} ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE____________________________________________ Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-203FC. (1Octanesulfonic acid) (CAS # 2795-39-3).

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DETERMINA5TIOTNHEOFSTHHAEKEWAFLTAESRKSMOELTUBHIOLDITY OF PFOS WILDLIFEINTERNATIONAL LTD, PROJECTNUMBER. 454C-107 /C-5 `OECD Guideline for the TesoftChi emin calgs, 105.

_ AR126-0095 PFOS: A 96-HOUR STATIC ACUTE TOXICITY TEST WITH `THE SALTWATER MYSID (Mysidopsis bahia) FINAL REPORT WILDLIFE INTEMRNLAATBIROENLQTAUDLE,STPRNOOJ,E3C7T3N3UMBER: 4504-101 ScrUS150EOamPliTnoSeeNnusmtbeEPror8s5i0o1T0no3A5Ggearienes AuORS at Dror HenrOy.

ADVANCED BIOANALYTICAL SERVICES, ING.

AR 226 - 0862 BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referredto as PFOS, FC-95, or as a component of FC-603F. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-2147 INTEROFFICE HEMORAKDuH TO: J.

AR226-2233 Vapor Scavenging Coefficient Estimation Vapor scavenging coefficients are used to estimate the rate of removal of a soluble species that exists below the cloud line based on rain event characteristics, such as intensity and droplet size.

A W IG -o o sn fc-i WATER SOLUBILITY TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

A R U & -0 0* 5 PFOS: A 96-HOUR TOXICITY TEST W ITH THE FRESHWATER ALGA (Selenastrum capricomutum) FINAL REPORT WILDLIFE INTERNATIONAL LTD.

COViVfC^ THE DEVELOPMENT SERVICES COMPANY July 1, 1999 Covance Laboratories Inc. 9200 Leesburg Pike Vienna, Virglna 22182 Tel: 703/893-5400 Fax: 703/759-6947 Paul Lieder, Ph.D. 3M Corporate Toxicology Building 220-2E-02 St.