A&8.S.6 - 06D PFOS Repeat Dose - 000066 Pathology Associates International A Company of Science Applications International Corporation An Employee Owned Company Dr.

Ad a.a.6 - 0768 BIODEGRADATION (BOD/COD) 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).

A h * 2.6 - 0 7 S Z ACUTE TOXICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

M &Z6 - ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorcoctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-600. (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 3M production lot number was 628.

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gGH& - 0 2 0 0 - $ 1 5 J R zz6 -0 % lys -y Laboratory Report, Analysis of FCs in Samples of Children's Sera, May 21, 1999 The data submitted on perfluorooctanesulfonate contains analytic data when certain general conditions have been met.

NO RTHERN KEN TU CKY OFFICE SU IT E 340 1717 D IXIE H IG H W A Y CO VINGTO N, K E N T U C K Y 41011-4704 606-331-2938 513-381-2838 FAX. 513-381-6613 Robert a .

NORTHERN KENTUCKY QFF,CE SUITE HO 'TIT OIXIE HIGHWAY COVINGTON KENTUCKY 4 '0 " -*T0A 5!

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ft HcKG -- I 6 6 LABORATORY-SCALE THERMAL DEGRADATION OF PERFLUOROOCTANYL SULFONATE AND RELATED SUBSTANCES TEST SUBSTANCE________________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C8F i7S0 3'K+. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3).

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M , 6 _ s t a t u s 'r e v i e w FLUOROCHEMICALS IN BLOOD 5/22/79, PGG On May 30, 1978, 3M informed Du Pont of findings of organic fluorocarbons in blood of employees exposed* to long-chain perfluoro surface-active materials.

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_ 14fe D u P on t-13309 Perfluorooctanoic Acid: Lactational and Placental Transport Pharmacokinetic Study in Rats Work Request Number 14787 Service Code 1569 Protocol Haskell Animal W elfare Committee Number: <> -1- RECEIVED 0PPTNC1C 2803SEP -* AH 8*1* 5 Perfluorooctanoic Acid: Lactational and Placental Transport Phannacokinetic Study in Rats D u P on t-13309 TABLE OF CONTENTS Page INTRODUCTION...............................................................................................................................3 OBJECTIVE........................................................................................................................................ 3 SPONSOR AND TEST FACILITY............. ....................................................................................3 REGULATORY COMPLIANCE.....................................................................................................3 STUDY DESIGN................................................................................................................................4 A.

Date: Sat, 30 Aug 2003 07:17:34 -0500 >To: Charlie Auer, steve.johnson@epamail.epa.gov >From: rich purdy <rpurdy@pressenter.com> >Subject: postponing of risk assessment.