FILE NAME: Kaiser Gypsum (KG) DATE: 1999 July 30 DOC#: KG 107 DOCUMENT DESCRIPTION: Legal - KG Co.'

FILE NAME: Exxon (EXX) DATE: 1996 Dec 16 DOC#: EXX040 DOCUMENT DESCRIPTION: BC Letter to Madelyn Cheddar RE Exxon December 16,1996 Madelyn Chaber Dear Madelyn, Esso's Dr.

ENCoomioogm n.weto5n370t7c7545 + Dlr 1100 Kan Bods Madion, 1 5374 608.241.4471 608.241.7F2a2x7 Sponsor: mn St.

AR226-052| MICROBICS MICROTOX TOXICITY TEST TEST SUBSTANCE Identity: `PaesrPflFuOorAooacmtamnooniciuacmids,alat,mAmmonmiounmiusamlt;pemrfalyuoarlosooctbaencraetfee,rrPedFOto, FC-116, FC-126, FC-169, or FC-143.

TOXICITY TO AQUATIC PLANTS AR 226 -- 0727 | Identity: A mixture containing perfluorooctanesulfonate, which may also be OrecftearnreesdultofoansicPFacOiSd,) (FCC-A9S5#, 2or79a5s-3a9-c3o)m.ponent of FC-203. 1- iRseFmCa-r2k0s3:. diethylene gClyuTcrohrleenbt3utMiynlfpeortrohmdeaurtc,ito3ino7n.in8ldo5ti%cnauwtaemtsbeeirt,ris2wa0as%minxeotttuhryneloetoendef.gl1yT.c3ho4el%, PteFsOtsSa,m3pl5e% 2.66 % Sultone foamer, 3% sodium octyl sulfate, 0.1% sodium lauryl sulfate, and 0.05% tolyltriazole.

BIODEGRADATION (BOD/COD) AR 226_ 819 Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as FC-206CF-X.

AR226-1747 PFOS: A DIETARY LC50 STUDY WITH THE NORTHERN BOBWHITE WILDLIFE INTERNATIONAL LTD.

3M Environmental Technology and Services PO Box 33331 St.

.3M Environmental Technology and Services CO Box 33351 St.

PHYSICAUCHEMICAL PROPERTIES TEST SUBSTANCE Identity:[2-(N-Ethylperfluoroocetsaunlfonamido) ethylacrylate;may also be referredtoas B1228, D-1, ETFOSEA, or FX-13.(2-Propenoicacid,2[ethy[lheptadecafluorooctyl)slufonyl]amnio]ethylester,CAS # 423-825) Remarks:Materiiaslan ambersolid.

JOURNAL OF APPLIED TOXICOLOGY, VOL. 11(1), 51-60 (1991) CUSTOMER COPY Complies with Cop4ght craw Servo Effects of Short-term Oral Dosing of Polychlorotrifluoroethylene (PolyCI ) on the Rhesus Monkerk( Christopher E.

CAS Number 25268-77-3 3M Company Voluntary Use and Exposure Information Profile N-Methyl perfluorooctanesulfonamido ethyl acrylate I.

NITRIFICATION INHIBITION TEST SUBSTANCE Identity:Mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, oras a component of FC-203CF-X or FC-203CF.

P. 1 3M ENVlRONMEN TAL LABORATOR Y REPORT NO.

Page 405 1 In The Superior Court 2 Of The State Of Delaware 3 In And For New Castle County 4 ------------------------------------ -x 5 Monsanto Company, : 6 Plaintiff, : 7 : Civil Action Number 8 v