HH9o no0r5shSahme,ehPPyAADri1Cvb9e,H0i4LdA0 Tekfax: (215) 43.8567 AR Q26- 1206 ~~ CharAleRsGRiUyvSerRLaEbSorEaAtoRrCieHs Discovery and Development Services Deanna J.

ARRAG -- | 3] 3 2= e3m2 S3 ZB3o5 =x 35 FLUORINATED SURFACTANTS IN FIRE FIGHTING FOAMS: ANY INPUT FOR WATER MIST TECHNOLOGY Martial PABON, PhD DuPont de Nemours (France) Chantereine, Mantes le Ville F-78202 Mantes la Jolie Cedex & | Structure of a fluorinated surfactant Hydrophilic head | L.A nar perfluorinated chain Ex.

AR226-1398 | irae oni m albino E. 1. ou Pont o Niemnours & Company WILMINGTON, DELAWARE [-- - HD") Serenbets - eep AR R26 -- 1398 : November 23, 1982 PERSONAL & cONPIDENTIAL JP.OLWYwM.

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<(email Correspondence ARWG-0 u%s3 ': ce: BR. oAhlnDeesosrun- Speocm.en,CheFml.uo-r2W2i3g-.65-C0hLemolite Center - k1-1 A.

PCoAsSsNuummePreat7uosrss3o0c3anesutos AR 226-0560 abort RSuMsEsndNouFrmmeeerenLatALNaTCosooonnosg --- ANALYTICAL LABORATORY REPORT oNTHE Determination of the Presence andConcentration of Potassium Perfluorooctanesulfonate (CAS Number: 2759-39-3) in the Serum and Liver of Sprague-Dawley Rats Exposed to PFOS via Gavage Laboratory Report No.

TL SRymaecorpeoratio,n .

2 crfateis nrue ey To DewacwosypspnDeGrgSmEmDcPaGAmS,SdEGoEAhDLaA.kSeKGasPrieA@n,mamsmcoooenmDrCIaUaSdElPADLCSIGIEPSAEBPaAtSa, Subject PFOSToms Following upon my phone call wi Bil Wepprer on May 15, 1want confi afew points i23MThancaicstuaiatpedrr1aeheanpdmiegsaecoutesfrnsmgidyoapnaratiwvciietpihlapntthaoesCp.enorSsmWmwiil fsowifaortdhnecoEpUyoofncMomamyun2i4ciantBiornsuesstasboldiiesshclinugssshePFmOeSe.tin|g Tfhe onextrpaochkmatgesetaionfg3otMfFnfFioOrmSamoliiornneons,PFOS wil come in this Thursday (May 18).

AR 226 - 0723 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (GRASS SHRIMP) IESTSUBSTANCE ~~~ 0000000 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95,or as a component of FC-203.

AR 286 _ 021 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: MreifxetrurreedctoonatasinPiFnOgSp,erFfCi-u9o5r,ooocrtaansesauclfoomnpaotneewnhticohf mFCa-y30a0ls3o. b(e1Octanesuifonic acid) (CAS # 2795-39-3).

ia CC AR22671572. - o 8 Level - Current Washington Works Female Employees Number of Samples 56 : Range .0.013-5.1 .

SCToaiaxrNea1mWihienan May 10, 3001 necorves SUSeEPoAmHeusdnnuasrrs AY 23 2001 Wasson0, ose 1200 Pennsylvania Avenue, NW.

| Northwest Bioanalyical RSetpuodrytNNoo..NNWWBBRSS999--111136 Quantitative Determination of PFOS, PFOSA, PFOSAA, PFHS, POAA, M556 and M570 in Human .

Attachment | Co Pagel AR226-1775 rath AIR DATA DUPONT WASHINGTON WORKS SITE "efTfhoirstss,ubbmoitthtaolfswuhmimcahriarzeesasasvoaciilaatbeldewiintfhorPmFatOiAonifnraoimr atthethfeoDlluoPwoinntg tWwaoshdiantgatcoonllWecotrikons site: 1.

BACK TO MAIN Study Title Microbial Metabolism (Biodegradation) Studies of Perfluorooctane Sulfonate (PFOS) I I .