CONFIDENTIAL AR226-3110 DPT478/992105 This report is considered by the Study Director to be the `final drift''and has bien submitted fthe Huntingdon Life Scienees.Quality Assurance Department for Audit _ _ The Sponsor is requested to review this document and commnni|aterafi.y coipients^to^fc_S^Jdrectc-,as soon as possible.

AR226-3393 HASKELL LABORATORY C4, C6 PERFLUORODIIODOALKANE EMERGENCY EXPOSURE LIMIT EEL: 50 ppb (1-60 minutes) Time Limit: 60 minutes Ceiling Concentration: 50 ppb Emergency Exposure Limits (EELs) are to be used for emergency planning purposes only.

bm lr< X > & PFOS: *' A 96-HOUR SHELL DEPOSITION TEST WITH THE EASTERN OYSTER (Crassostrea virginica) FINAL REPORT WILDLIFE INTERNATIONAL LTD.

CHRONIC TOXICITY TO FRESHWATER INVERTABRATES (Daphnia magna) 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.

C O RN IN G Hazleton MUTAGENICITY TEST ON ; IN AN /A VIVO MOUSE MICRONUCLEUS ASSAY FINAL REPORT AUTHOR Hemalatha Murli, Ph.D.

BACK TO MAIN NON-GLP STUDY: PFOS BACKGROUND SCREEN IN SELECTED WILDLIFE INTERNATIONAL, LTD.

BACK TO MAIN STABILITY IN THE ATMOSPHERE (PHOTOLYSIS) TEST SUBSTANCE Identity: Perfluorooctanesulfonyl fluoride.

AfU26-0232 C O RNING Hazleton - '?

HAZLETON WASHINGTON 9 2 0 0 LEESBURG PIKE VIENNA.

MW . 0 6 ^0 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON D.C., 20460 January 6,1999 Dr.

ARSLA6 - 0 7 6 / 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-203CF-X or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).

'he -` Oeeiei'ie t H i e /jienM iu A < lu. 1 12 b v 1 ; A ' - i-,; bNcvicr Seif net Publishers B V All nnhis reserved <XI()5-27(i<l/9;/S(jyiXl B13ALIP 54011 N 'C ;-- a " ': --p--s A.-,..-*-: -'-I The mechanism underlying the hypolipmie effect of perfluorooctanoic acid (PFOA), perfluorooctane sulphonic acid (PFOSA) and clofibric acid Bente Haughom and 0ystein Spydevold Institute o f Medical Biochemistry, Universi!}

Atm,-m i INTEROFFICE MEMORANDUM Date: From: Dept: Tel No: 08-Apr-1998 02:34pm DAVID E.

PFOS: A DIETARY LC50 STUDY WITH THE MALLARD WILDLIFE INTERNATIONAL LTD.

AR226-1998 TRENDS IN C-8 IN AIR LEVELS FEE Area (Composite Avg.) .1980 C-8 T n Air' (mpb) AEL 0.56 1981 1982 1983 1.87 0.32 Not Calculated 0,15 FEE Wet Finishing Operator 0.95 0.30 FEE - No, 1 Clean Boom No. 2 Clean Boom 6;80 3.11 Fine Powder Dryer Operator 1.40 0.56 Fine Powder Dryer Boom (Composite Avg.) 3.00 2.47 0.09 3.54 0.15 0.37 0.11 0.19 0.06 0.23 JWR:ldr 10/19/83 AJP003476 EID077033