Little Hocking Water Association, Inc.

[rr ---- CoG KENTUERY $101.4704 ite sq pp TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 FAsXr5a1a5e3n0a1s0n205 `wwwtaftlaw. com ARRRG 1216 anes amoornc PE Sissi re es oi Fem Rosgleorenm@ri6Aa7t..aB9wL6co%oTmT February 3, 2003 8EZ on = 38 TELECOPY AND CERTIFIED MAIL 7002 0860 0006 6119 4507 Dr.

ARRRG _ 1249 TSCA NCIC NOTIFICATION FORM FOR CBI DOCUMENTS DockeTNumser: ___ 1 & 334 DOCUMENT CONTROL NUMBER: __(2 23 0 00oo $ DOCUMENT DATE: 2-(2-03 DOCUMENT Type: _ Doc ff F 3 on 3) = 53 S3= THE DOCUMENTREFERENCEDABOVE IS CLAIMED AS CONFIDENTIAL BUSINESS INFORMATION O(TCFSBCITA)S,UCNAADNRDEIERTQSIUEIMCRPTEOISSOEENSP1CA4RIOTMFOIPNTARHLOEPTTEEONCXATILCTFIRSEUOSBMFSPOTURABNLTCIHCEESDKICNSOOCNWLTIORSNOUGRLAEANSCDCTWBI(ILTLSOFCBUAT)LA.IUNNEATDUHTAUHTNODSREEIRCZTEIDON RELEASE OR DISCOFLSUOCHISNFOURMARTIOEN.

AR A26 - 1478 A ASimmmpolen,iCuomnsPeerrvfaltuiovreooCcotmapnaoratteme(nAtPaFlOM)oEdxeplostourReeltaote Estimates of Perfluorooctanoate (PFO) Blood Levels in Humans Paul M.

BIODEGRADATION 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- 5[ethyi[heptadecafluorooctyl)sulfonyljaminoethy!

Co ARI2G-O WS \ Industrial 1B 810 I -FRTOENO TSATGELaRbOoArDu.tsuies, Ine.

`Summary PFOS Rat Cross-Fostering Study Numbers: 3M T-6295.13, Argus 418-014 Compound & Lot: Analytical Request PFOS (Perfluorooctanesulfonate) 53030) ~Lot 217, 98.4% pure (SMD CAS.

7 Gchaa7r2sa7hu2n0t00 01:39 PM TT o E geraldmaknednencec/yD@OU/SUASdEuPpAo/nUtSoGmEPA, pateLnei@epa gov Subject Request for change in submission da for PFOR exposure infomation GTTehraarnyk.s for your EMaiyw2i, t20c0o0rtleitteoirfsswtihhioecnrheb,qyuaeMmsaotynegd26iotnohffeorrtmotahxtiiinogcns,oinnnfooatremmsmattoihnoanituoDmnuPPPoFFnOOtAS.

AR 226 - 0692 BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referredtoas PFOS, FC-85 or as a component of FC-201AF. (1- Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 - 0707 BIODEGRADATION (BOD/COD) EST SUBSTANCE Identity: ArefmeirxrteudretocaonstPaiFnOiSng,pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twohficFhC-m2a0y1Fa-lXs.o b(e1Octanesulfonic acid) (CAS # 2795-38-3). 2R0e1mFa-rXks(:F-111T2h9)e. 3MCuprrroednutctinifoonrlmoattniounmibnedriwcaatses 1i.tiTshaemtiexsttusraem3p%lePiFsOFSC,S3o6d%iudimeotchtyyllesnuelfgaltyec,ol6b%utsyulleftohneart,ed36a.lk6y%l ewtahteerr,sa8l.ts2,53%%actrryileicthfaonaomlearm,in7e,%and 0.15% toluoltriazole. cThhaerafcotlelrowiiznegdscounmcmeantrryataipopnlsioesftiompaumriitxiteusr.eDiattha imnacyomnpoltetaeclcyurately reflect the biodegradabilityof the fluorochemical componentofthe test sample.

.

AR 226 _ 0890 BIODEGRADATION (BOD/COD) IEsTsuesTANCE Identity: MriefxetrurreedctoontaasinPiFnOgSp,erFfCl-u9o5r,ooocrtaansesaulcfoomnpaotneewnhticohf FmCa-y30a1l7so. b(e1- Octanesulfonic acid) (CAS # 2795-39-3).

re 3M Specialty Materials SSMCRPCaan,eMrN 551441000 F1-0800- 1378 BM remo tL hs D To fre PfsT g8s SBi] == Dr.

. . 1. ou Pou otSNengioun&s Company pa [E icHwoN-- D, Vinainin se2361 L3Eb dhe C.

te SRPT 71149 MEH 27383) - Study No.