M A S 6 - 0 2 /5 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing periluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR26- 0496 BIOCONCENTRATION ITEESTSSUUBSTANNCCEE 000000000 Identity: PPeFrOflAuoarmoomcotnaniouimc ascailtd,,Aammmmoonniiuumm psaelrtf;lmuacryoaolcstaoncbaeter,efPeFrrOe,d FtoC-as 116, FC-126, + ammonium FC-169, or salt, CAS# 3F8C2-51-4236.-1()Octanoic acid, pentadecafiuoro- Remarks: The test sample is FC-143.

ARY16-0525 ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, FC-143 or as the major component of FC1015.

QEHR - 0400. 373 (0008117828) 7 5.

AR 236 0873 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: ArefmeirxrteudretocaonstPaiFnOiSng, pFeCr-f9l5u,oroorocatsanaescuoimfponoanteen,twohficFhC-m3a01y7.also(1-be Octanesulfonic acid) (CAS# 2795-39-3).

AR226-1735 PFOS: A DIETARY LC50 STUDY WITH THE MALLARD WILDLIFE INTERNATIONAL LTD.

3M Environmental Technology and Services PO Box 33331 St.

AR226-2541 RESPONSETO INFORMATION REQUESTEDREGARDINGAPRIL 1992 VI REPORT (REFERENCE;EPA REGION III LETTER DATED HAY 5, OUPONT WASHINGTONWORKS 1997) WVD045875291 Responses to information requested in the referenced EPA letter are presented below.

92091 SPONSOR ElfAtochemSA.

AR226-3135 TRADE SECRET Study Title H-24256: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3548 AUTHOR: Gregory S.

AOVANCEO BIOANALY71CAL SERVICES, INC.

Coming Hazleton Inc.

STUDY SUMMARY OF ENVIRONMENTAL AFFF AND COMPONENTS - 1991 EFFECTS OF LIGHT WATER BRAND TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component ofFC-203. (1Octanesulfonicac7id()CAS # 2795-39-3).

Summary N-EtFOSE Rat Teratology Study Numbers: 3MT-6316.7, Argus 418-011 Comoound & Lot: N-EtFOSE (N-Ethyl-Perfluoroocyanesulfonamido Ethanol) - Lot FM3923 (30035, 30037, 30039) 98.2% pure (SMD Analytical Request 52489) Analytical Documentation filed along with final report.

Corning Hazleton Inc.