ADVANCED BIOANALYTICAL SERVICES, INC.

A R Z K > - 0 5 l5 MICROBIOS MICROTOX TOXICITY TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as P F O A ammonium salt, Ammonium perfluorooctanoate, PFO , FC-116, FC-126, FC-169, FC-143, or as a major component of FX-1003.

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&tfGt' fa> iooosnyAP* \ 3M SPECIALTY ADHESIVES & CHEMICALS ANALYTICAL LABORATORY ' To: ' From: Leo Gehlhoff- (309727) -3M Chemicals - 236-2A-01 Tom Kestner - (3-5633) SA&C Analytical Lab - 236-2B-11 Request # 's 53030 ARXU-05CM Subject: Fluorochemical Isomer Distribution by 19F-NMR Spectroscopy Date: December 1, 1997 SAMPLE DESCRIPTIONS: * FC-95, lot # 217 (T-6295); Nominal product = CFi7-S03(-) K(+) INTRODUCTION: This sample was subjected to a 19F-NMR spectral analysis method to determine the identities and relative concentrations of the fluorochemical isomers and as many other identifiable impurity components as possible.

CAS Number 4151-50-2 3M Company AR.AZGj&gO 1 Voluntary Use and Exposure Information Profile N-ethyl perfluorooctanesulfonamide I.

AR226-2040 I'-' ir OFFENBJL 09/22/98 01:48 PM To: BROWNAL, ROGERSJD , RURAK , MORRISWC cc: MAJTSORR, MAHANEY , PLAYTIS , SZAKATBK , ZIPFEL Subject: C-8 The Industrial Hygiene Air Sampling results for c-8 in some sample locations are higher this year then they were last year.

AR226-2411 I- INTEROFFICE MEMORANDUM Date: 2o-Sep-1990 10:31arn From: Peter D.

" CONFIDENTIAL CONFIDENTIAL wor Soreaporsncs Internal Correspondence 3M To: RA Puchi 212005 TO: FROM: EBHTGCI.iAmGSdoaedinemama2ic2-3h1r01220-E08n08v893.0E6ns. & ol.Cone - 2127.05 FROM: SUBIECT: Wot Update Report SUBIECZI': DATE Dacemb1er,1992 DATE: R.

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AR 226 _ 0850 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) IESTSU~ BS ~ TANC 000E 00 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1- Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 -077 MICROBICS MICROTOX TOXICITY TEST IESTSUBSTANCE Identity: ArefmeirxrteudretocaonstPaiFnOiSng,pFeCr-f9l5uo,roorocatsanaescuolmfponoanteen,twhoficFhC-m7a8y7aolrsoFCb-e 787X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

Fa 73 5)) Lary J `Summary PFOS Rabbit Teratology Sunt Numbers, 3M T-6295.10, Argus 18012 CCommpLoa&uLn,xd EPFOOS (Proflnsoirodncsatncoifwiotnhtf)r-aLroetpo2r1t7.

BACK TO MAIN ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, N2803-2, or as a major component of L -13492.

BACK TO MAIN MULTI-CITY STUDY FIELD REPORT FOR FINFISH, MICRO-LAYER ,4ND BULK WATER COLLECTION IN CLEVELAND TENNESSEE, DECATUR ALABAMA, AND COLUMBUS GEORGIA for Project Number 31565 submitted to September 23,1999 Prepared by David K.