A RllG-o^ DETERMINATION OF THE VAPOR PRESSURE OF PFOS USING THE SPINNING ROTOR GAUGE METHOD WILDLIFE INTERNATIONAL LTD.

A R U G -0075 - '/ I " ) 3 FINAL MULTI-CITY STUDY FIELD REPORT FOR MOBILE ALABAMA AND PENSACOLA FLORIDA - BATTELLE DUXBURY ACTIVITIES for Project Number N100672-01 Submitted to Confidential September 29,1999 Prepared by Christopher Gagnon Battelle 397 Washington Street Duxbury,MA 02332 (781) 934-0571 000422 TABLE OF CONTENTS 1.

BACK TO MAIN ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) 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.

4 fU Z G _0 7 0 5 r MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY) TEST SUBSTANCE______________________________________________ Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-201F. (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 not noted.

M S.A6 - 0 7 6 0 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).

Internal Correspondence in Ij* Clair Murphy - 116-1 - 01-064 Tom Pietrs - 22-1 - 01/064 I'-'^ Dean Dworak - 41-1 - 01/064 Cliff Ruschmeyer - 116-1 - 01/064 John Pilney - 47-1 - 01/064 Tom Christ - 110-1 - 01/064 Gordon Weum - 47-1 - 01/064 TO: Glenn Damerell - 70-1-01 - 01/064 From: Larry R.

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/IRZX-055& Summary PFOS Rat Cross-Fostering Study Numbers: 3M T-6295.13, Argus 418-014 ACnomalpytoiucanldR&eqLuoets:t 5P3F0O3S0)(Perfluorooctanesulfonate) - Lot 217, 98.4% pure (SMD C.A.S.

AR226-2465 "Roger J .

AR226-2968 FOR DU PONT USE ORLY Du Font HLR 632-91 Study Title ApproximateLeHd.

AR226-2980 Du Pont H L R 592-92 TRADE SECRET Study Title STATIC, ACUTE, 96-HOUR LC50 OF H-19,517 T O FATHEAD MINNOWS.

AR226-3187 DuPont-4739 TRADE SECRET Study Title H-24616: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Volume 4 o f 5 Laboratory Project ID: DuPont-4739 Test Guidelines: U.S.

* .

ACUTE TOXICITY TO AQUATIC INVERTEBRATES TEST SUB-STANCE (DAPHNIA MAGNA) Identity:Mixturecontainingperfluorooctanesulfonatwehich may also be referredtoas PFOS, FC-95, or as a component of FC-203FC. (1Octanesulfoniaccid)(CAS # 2795-39-3).

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatmea;y alsobe referredto as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfoniacid)(CAS # 2795-39-3).