BIOACCUMULATION (ANALYTICAL ONLY) TEST SUBSTANCE Identity: Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium salt,Ammonium perfluorooctanoateF,C-1 16,FC-1 26, FC-169, or FC-143.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95 or as a component ofFC-201 AF. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:Mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component of FC-203CF-X or FC-203CF. (1-Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referredtoas PFOS, FC-95, oras a component ofFC-206 or L3243. (1-Octanesulfonaiccid)(CAS #2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-602. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (MUMMICHOG) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, oras a component ofFC-780B. (1Octanesulfonicacid)(CAS # 2795-39-3).

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Attention: Docket Number EPA-HQ-OW-2014-0138 April 28,2014 We appreciate the opportunity to comment on the draft "Health Effects Document for Perfluorooctane Sulfonate (PFOS)".

Aezatr3155 mEaan August 4, 2010 EPA Docket Center, MC 2822T U.S.