received __________________ __________ DuPont-7473 TRADE SECRET Study Title Perfluorooctanoic Acid: Toxicokinetics in the Rat Laboratory Project ID: DuPont-7473 r-o CmO ~XJ i cn o"~--OoH TzxJ ~r. o o F3 o Test Guidelines: U.S.

CAS Number 335-77-3 (acid) & 67906-42-7 (ammonium salt) 3M Company 4 . a 6 j T 7 f Voluntary Use and Exposure Information Profile Perfluorodecane sulfonate I.

c@ PU ) 4ea6- DuPont ?

OuPonl WishinstKi Works P. 0.

AR226-2035 "Roger J, ZipfeT <ZIPFlLWWPS-AT.MAIL.DUPONT.eOM> on 09/14/39 07:01:19 PM To: Roger J Zipfel/AE/DuPont Subject: (C-8 EM PLO YEE EXroSURE/01-Mar-1998)Jan/Feb C-8 Sample Feedbac Dates Sun, 1 Mar 1998 16t14s00 EDI Proms Becky Szakata Dines <SZAKATBK@wwps-al.email.dupont.com> Subjects Jan/Peb C-8 Sample Feedback Tos JACK OFFENBERGER <OFFENBJL@wwpS-al.email *dupont.Com> Ce: "ANTHONY J.

AR226-2727 LOW LEVEL DETERMINATION OF FC-143 IN WATER October 1991 rH?

AR226-3128 DuPont-3268 TRADE SECRET Study Title H-24119: Skin Irritation Test in Rabbits Laboratory Project ID: DuPont-3268 AUTHOR: Carol Finlay, B.A.

ar. * a 6 _ o6gs TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95 or as a component of FC-201AF. (1Octanesulfonic acid) (CAS # 2795-39-3).

ar &A6- 0 7 og ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-201F-X. (1Octanesulfonic acid) (CAS # 2795-39-3).

4 K -2 2 6 _ Oi2Z 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-3003. (1Octanesulfonic acid) (CAS # 2795-39-3).

fin 2 .6 _ O Z & TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________ ___ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AH. k&G _ 0666 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE ________________ Identity: Mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-3072. (1Octanesulfonic acid) (CAS # 2795-39-3).

Report 2457, June 1990 **e a u - / 6 5 ?

0000428.txt AR226-2451 June 24, 1998 Details of FC-143 Sample Data From CH2M Hill Available To-Date: Location Date Site Sampled Site Location Result ug/L Dry Run Landfill it n ir it it if if 5/19/98 II It If It Stream I Stream II 001 Outlet Leachate FBLK21 1 .0 4.6 17 56 0 .1 LeIVtart Landfill If II 11 II If If n 5/28II/98 11 It II II II II It Lower Pond Upper Pond WWKLTLMW6 WWKLTLMW2A WWKLTLMW7 WWKLTLMWl WWKLTLMW8 Trip Blank FBLK02 1100 480 30 990 260 24000 2700 0.1 0.1 Local Landfill IV If II 11 6/2/98 n 19 IV it Outlet 101 Stream 2 Outfall 004 Outfall 005 FBLK05 54 15 12 39 0.1 Plant Site IV West WellFld 16 RJZ011501 Page 1 EID086144 ~0000428.txt 16058 (vlw) RJZ011502 Page 2 EID086145

SPONSOR Elf Atochem S.A.