AR226-2492 ) MY ^(a"I^ie--S/ 08/31/01 11:01 0:08/13 N0:150 HjynKUCW* ^HWWfUVt Ewr1)^ ya-w-s '-"'" "it'B-;;.,.

AR226-2634 d > i AR226-2634 JANUARY 2003 BASELINE C-8 SAMPLING DUPONT FAYETTEVILLE WORKS FAYETTEVILLE, NORTH CAROLINA Date: March 2003 Project No.: 18983753.00037 ^ CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 January 2003 Baseline C-8 Sampling Introduction During the week of January 27th 2003, ground-water was sampled from four monitoring wells at the DuPont Fayetteville Works.

AR226-2665 RESEARC.H .

AR226-2803 TRADE SECRET Study Title H-24648 and H-24020: Biopersistence Screening 20-Dose Oral Gavage Study in Rats with Recovery Period Laboratory Project ID: DuPont-5207 AUTHOR: Susan A.

AR226-2982 t$ art Rabbits &"ball tabot trial I4sdiains al Haskell Laboratory 4,801V# 14 . 20-93 DU Poet trio 2$ -!

CCR Cytotest Cell Research GmbH & Co.

AR226-3036 Study Title Approximate Lethal Dose (ALD) of H-21333 in Rats Laboratory Project ID Haskell Laboratory Report No. 649-95 Author M.

TRADE SECRET AR226-3078 Study Title H-22762: Mutagenicity Testing in the Salmonella typhimuriwn Plate Incorporation Assay LABORATORY PROJECT ID: HL-1997-00676 AUTHOR: N.

ARA%6 _ 3282 464 AR2AG - BREA _ -- --------_ Duro-- n 11414 `TRADE SECRET Study Title H-25134: Four-Week Inhalation Toxicity Study in Male Rats TEST GUIDELINES: OECD Guideline for the Testing of Chemicals Section 4: Health Effects, Number 412 (1981) AUTHOR: Linda A.

AR226-3385 Subchronic, Developmental, and Reproductive Toxic Fluoroalkylethyl Phosphate Surfactant J.C.

AR226-2594 .^ ^y KatherinB L Davis 08/23/2002 11:31 AM To: cc: Subject: Andrew S Hartten/AE/DuPont@DuPont, Mark Houlday/AE/DuPorrtQDuPont, Tobin D Lounsbury/AE/DuPontQDuPont, Michael P ShBrri8r/AE/DuPont@DuPont, J Stephen Opp/AE/DuPont@DuPont.

TestingResults:Air-WatoPrartitioCnoefficie(nKtAw) for PFOS AIRIWATER PARTITION COEFFICIENT TEST SUBSTANCE Identity:Perfluorooctanseulfonatem;ay alsobe referretdoas PFOS or FC-95. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium saltC,AS # 2795-39-3) Remarks: The testsubstance isa whitepowder.

April 2. 1'J")% Larryand JcffFor titcalt3CIICgdf2plISand tables.I did thefollowing: useddatafrom 1981 on (beforethatthecountsperyearwere low) fortheemployees in 1997.lookedback to 1981 forallpastfluonnemeasurements twisedthenwnber of fluorinenumaimments peremployee selectedgroupsbased an ountbcrof meLramenTs: 6+.7+,3+. 9+,and 1(>+ createdone chartand one tableforeach group The n- valueon thechatu isthemaximum number of uxfividualsselectedforthegroup.

AbioticDegradationStu and photolysistudypla AbioticDegradation Studiesof PerfluorooctaneSulfonate PurposeofStudy: The purposeofthiisnvestigatiistoondeterminteheabiotidcegradation reactionsr,atesand productsofthepotassiumsaltofperfluorooctanseulfonate (PFOS or FC-95).These resultwsillbe used toaidinthedeterminatioonfthe environmentalfateofthiscompound.

Protocol.PFOS: A 96-Hou Freshwater Diatom (Navicu PROTOCOL PFOS: A 96-HOUR T03UCITY TEST WITH THE FRESHWATER DIATOM (Naviculapelliculosa) U.S.Fn*omncnW ProtectioAngmcy Series850 -EcologicalEffectsTest Guiddines OPPTS Nunber 850.5400 3M Lab RecpiesNto. ln723 submittedto 3M Corporation EnvironmentalLaboratory 935 Bush Avam'..., St.Paid, Minnesotit 55 IIM WildlffeInternationalL,td.. 8599 Commera-,Drivc Easton,Maryland 21601 (410)822-8600 September 17, 1999 WILDLIFE INTF-RNATIONALT LTD PFOS: A 96-HOUR TOMCITY TEST WrrH THE FRESHWATER DIATOM (tvaviculapelliculosa) SPONSO SPONSOR!