AR 226 -- 0798 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE \dentity: ArefmeirxrteudretocaonstPaiFnOiSng, PFeCr-f9l5u,oroorocatsanaescuolmfpoonanteen,twohficFhC-m2a06yAa.lso(1b-e Octanesulfonic acid) (CAS # 2795-39-3).

: TAFT, STETTINIUS & HOLLISTER LLP core sane CONTARS NO CBI 2 com 425 WALNUT STREET, SUITE 1800 EE DER, CINCINNATI, OHIO 45202-3957 ul Siren PcaCroyonmornee Aka 1301008 musaia n Se wecstinsson A226" [SEY RoserAr Bore Fer@oros-co373 Ws NOCBI 2 wagon on 5 an EUR alpp. rooms Janu ary 26 , 2004 N Arge-40-3132 Ea 05 Richard H.

MONTHLY REPORT P.

BACK TO MAIN TOXICITY TO AQUATIC INVERTABRATES (Artemia sp) 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 of uncharacterized purity.

BACK TO MAIN BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, FC-109-X, FC-4351, or L-6778.

BACK TO MAIN ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, N2803-2, or as a major component of L -13492.

3M Medical Department Study: T-6316.5 3M Medical Department Study: T-6316.5 AnalyticaBl SAtuCdKy: TFOACMT-ATOINX-013 LRN-U2095 Analytical Report: FACT TOX-013 LRN-U2095 Study Title Analytical Study 2(N-Ethylperfluorooctanesu1fonamido)-ethanol in Two Generation Rat Reproduction Amended Analytical Laboratory Report Determination of the Presence and Concentration of PFOS, M556, PFOSAA, and PFOSA in the Liver and PFOS, M556, PFOSAA, PFOSA, and EtFOSE-OH in the Sera of Crl:CD@BR VAF/PIUS@Rats Exposed to EtFOSE-OH Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date MAayt s3ig1n,in2g001 Performing Laboratories Sera Analyses Liver Analyses 3M Environmental Laboratory Building2-3E-09, 935 Bush Avenue St.

BACK BIODEGRADATION TEST SUBSTANCE Identity: Remarks: N-Ethylperfluorooctanesulfonamide; may also be referred to as NPFOSA, EtPOSA, F-6309, or FX-12. (1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-ethyl-, CAS # 415150-2) N-EtFOSA was a white solid.

Sponsor: APME Ad-Hoc APFO Toxicology Working Group FINAL REPORT Study Title: 4-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO) in Cynomolgus Monkeys Author: Peter J.

3M Medical Department Study: T-6316.1 3M Medical Department Study: T-6316.1 Analytical Report: FACT-TOX-003 LRN-U2104 Analytical Report: FACT TOX-003 LRN-U2104 Study Title 104-Week Dietary Carcinogenicity Study with Narrow Range N-Ethyl PerfluorooctanesulfonamidoEthanol in Rats Analytical Laboratory Report Title Determination of the Presence and Concentration of PFOS, PFOSA, PFOSAA, EtFOSE-OH, M556, and PFOSEA in Serum and Liver Samples of Crl:CD@(SD)IGS BR Rats Exposed to N-Ethyl PerfluorooctanesulfonamidoEthanol Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date JuAntes0ig6n,in2g001 Performing Laboratories Liver and Serum Analyses JI 3M Environmental Laboratory Building 2-3E-09,935 Bush Avenue St.

-_-- en| ARESEARCH pivenRol _-- = Ar226-1950 SEA 0SEPR25 pi: gy IY 3M Company Analysisof PFOA and PFOS in Water Samples from OakdaleMunicipality E05-0184 Exygen Report No.

AR226-2193 ,y Oscar TGarza 08/28/2001 07:44 AM To: cc: Subject: Ta-Wei Fu/SE/DuPont@DuPont Stephen J Gissy/AE/DuPont@DuPont, Fred M Lentz/SBDuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont.

AR226-2431 INTEROFFICE MEMORANDUM Date".

AR226-2461 Roger J Zipfe!

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