AA S & G -08/ 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-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

mm vSTABUSHcD ICC* , I. du Pont de N em ours & C ompany INCORPORATED P .O .

8 PP ANALYTICAL BIOCHEMISTRY 118, 336 343 (1981) AR226-1440 Characterization of Ftuorinated Metabolites by a Gas ChromatographicHelium Microwave Plasma Detector-- The Biotransformation of 1H, 1H,2/-/,2H-PerfluorodecanoI to Perfluorooctanoate D o n a l d F.

SECTION IV - P PAGE P-7-32 OP P-7-40 TEFLON* POLYMERS DIVISION CATALOG OP CHEMICALS ~4/Z.2.Z6r /S&S April 10, 1981 70: .TEFLON PRODUCTION, TECHNICAL, MECHANICAL SUPERVISION '77"".*.

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From: To: CC: Sent: Subject: Corl III, William E CIV Chemist, LQAO, C1198 Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Willey, Janice L CIV SEA04X, LQAO Adelson, Jordan M CIV SEA04X, LQAO; Brown, Kim P CIV NAVFAC HQ, EV; Corack, Jennifer M CIV NAVFAC Atlantic, EV 3/15/2017 12:49:20 PM RE: Newly Discovered PFASs Steven, More typical Jennifer Fields work to identify other compounds present.

Sees Experiment No.: Conducted At: sven conta Dates Conducted: SP Conducted By: RReevviieewweedd BByy:: Acute Oral Toxicity Screen wan mens with T-3421 1 sibin acs in Albino Rats assanoer 0883AR0287 f Fan h Safety Evaluation Laboratory Riker Laboratories, Inc.

.. 17amy Ty Acute oral Toxici. ty Screen NNeo oR LsoDa T of with T-20650oC in Albino Rats apes int: No.

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Submitted to: BIOSEARCH, INC.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonicacid)(CAS # 2795-39-3) Remarks: The 3M productionlotnumber was 1-2303.

Internal Correspondence de: J.