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.

AR SLSLG-Ogtf 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 not noted.

A R RS.& _ 0 9 l6 ACUTE TO XICITY 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 FX-3104. (1Octanesulfonic acid) (CAS # 2795-39-3).

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.

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ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

A R # 6- o m it ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: [2-(N-Ethylperfluorooctanesulfonamido) ethyl acrylate: may also be referred to as B1228, D-1, EtFOSEA, or FX-13. (2-Propenoic acid, 2[ethyl[heptadecafluorooctyl)sulfonyl]amino]ethyl ester, CAS # 423-825) Remarks: Material is an amber solid.

Patta Ritter Building 2 7 0 -3 S 0 5 , 3M C enter SL Paul, M innesota 5 5 1 44 -1 0 0 0 /IfWX-om TWO YEAR ORAL (DIET) TOXICITY / CARCINOGENICITY STUDY OF FLUOROCHEMICAL FC-1A3 IN RATS (RIKER Experiment No . 0281CR0012) Volume 3 of 4 .

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26 _ 06& T BIODEGRADATION (BOD/COD) TEST SUBSTANCE _________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonic acid) (CAS # 2795-39-3) Rem arks: The 3M production lot number was 1-2303.

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AR226-2069 WASHINGTON WORKS INDUSTRIAL HYGIENE REPORT FROM 1--Jan-1988 TO 3i-Qct-i99i 31-Oct-1991 Page 1 AREAS FLUOROCARBONS - HOMOPOLYMERS CHEMICAL SAMPLE LOCATION *:CONTROL C--8/FC--143 10E FINE POWDER DRYER OPERATOR DATEs lE-Apr-1988 NOTEBOOK!

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A fi. & Z 6 _ 0 7 t j - 2 A C U T E T O X IC IT Y TO FISH (M U M M ICH O G ) T E S T S U B S T A N C E _____________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFO S, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) Rem arks: The 3M production lot number w as not noted.