REPORT Twenty-eight-day Toxicity Study Repeated of Sample Dose Oral D-1 in Rats (BMR 14 3 C) Bio-Medical Research Laboratories Co.

BIODEGRADATION TEST SUBSTANCE Identity:Perfluorodecanesulfonatea,mmonium salt;may also be referred to as PFDS, FC-121-X, or 3M Sample E2112 and E2566-1.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:PerfulorooctanesuIfonylmaido(ethyla)cetate;may alsobe referredtoas PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-1 09, or FC-109-X.

ExLt:nL and Route of Excretion and Tissue., Distribution of Total Carbon-14 in Male and,@ema Rats After a Single IV-Dose of FC-143- C ECE 'I VE D January 30, 1980 F F@- Conducted at: 3;*'vl TOXIC-'.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE ldent4: Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium saltA,mmonium perfluorooctanoateF,C116, FC-126, FC-169, or FC-143.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorooctanoiaccid;may also be referredtoas PFOA, FC26, or FX-1001.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95 or as a component of FC-201 AF. (1Octanesulfonicacid)(CAS # 2795-39-3).

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-203A. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-3041. (1Octanesulfoniaccid)(CAS # 2795-39-3).

HAZLETON LAEC)RATORIES AMERC.A.

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I~ Environment Environnement Canada Canada p. 1 3593 Consultation Notice / Avis de consultation Action Plan on Perfluorocarboxylic Acids and Precursors / Plan d'action pour les acides perfluorocarboxyliques et leurs precurseurs Dear Sir or Madam, Monsieur, Madame, The purpose of this letter is to inform you Par la presente, Environnement Canada of Environment Canada's intention to hold desire vous informer de son intention de consultations on proposed actions tenir des consultations portant sur les addressing perfluorocarboxylic acids actions proposees visant les acides (PFCAs) and their precursors . perfluorocarboxyliques (APFC) et leurs precurseurs .

p. 1 TAFT, STETTINIUS & HOLLISTER LL P NORTHERN KENTUCKY OFFICE CLEVELAND, OHIO OFFICE SUITE 340 3500 BP TOWE R 1717 DIXI E COVINGTON, KENTUCKYV41011-4704 425 WALNUT STREET, SUITE 1800 200 PUBLIC SQUARE CLEVELAND, OHIO 44114-2302 606-331-2838 216-241-283 8 513-381-2838 FAX : 513-381-661 3 CINCINNATI, OHIO 45202-3957 FAX : 216-241-3707 ~ COLUMBUS, OHIO OFFICE ( DAYTON, OHIO OFFICE 513-381-2838 21 EAST STATE STREET SUITE 900 COLUMBUS, OHIO 43215-422 1 ~J 110 NORTH MAIN STREET FAX : 513-381-0205 614-221-2838 DAYTON, OHIO 45402-1786 FAX :614-221-2007 937-228-2838 www.taitlaw .com FAX : 937-228-2816 ~ ~ _ f _ - ~ . _, ~ ~~ 2 yI { Z ROBERT A .

Katherine E .