ATTACHMENT TO LETTER OF 2/9/05 3M FLUOROCHEMICAL SUBMISSION 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE PFOA Perfluorooctanoic Acid 1.

T ?

BACK TO MAIN MICROBIAL RESPIRATION INHIBITION TEST TEST SUBSTANCE________________ Identity: Decafluoro(pentafluoroethyl)cyclohexanesulfonate, DEA salt; may be referred to as CS-2070.

C orporate O ccupational M edicine 3M Center, Building 220-3W-05 St.

(JS ESTAI y S MI D i t o ; E . 1. d u P o n t d e N e m o u r s & C o m p a n y INCORPORATED W i l m i n g t o n , D e l a w a r e 19898 PO LYM ER PRO D U CTS D EPARTM ENT E X P E R IM E N T A L STA TIO N PERSONAL AND CONFIDENTIAL cc: A.

-4 5 R C V 12 79 < M I> ESTABLISHED IBOi E I. du P o n t de N e m o u r s & C o m p a n y IN C O RPO R A TED W il m in g t o n , De l a w a r e 19898 POLYM ER PRODUCTS DEPARTMENT EXPERIMENTAL STATION PERSONAL AND CONFIDENTIAL cc: A.

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE October 1987-October 2005 C lick on Study Title to V iew R eport PFOA Perfluorooctanoate 1.

AR226-1980 , v5~<6 m ph J .

AR226-2391 Polymer Products Department _ Research & Development Division Experimental Station M.

ARm-om Compound-Specific, Quantitative Characterization of Organic Fluorochemicals in Biological Matrices Kristen J.

A R B fc -0 5 6 ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, orFC-143.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE_________________________________________________ Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity: The limited water solubility of this material prohibited a definitive determination of the aquatic toxicity.

L->77?

M S ik 6 -0 S jS ' ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, 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.

2 -4 5 C *. 7* nrr c: . t. t:r E . 1. d u P o n t d e N e m o u r s & C o m p a n y W i l m i n g t o n .