EXyBeN. keg ri reAttachment 2 226-7764, Air Sampling Fluorochemical Report [ DuPont Washington Works -- Air Sampling Program Round 7 Exygen Research Report No.

3M ENVIRONMENTAL LABORATORY Protocol-AnalyticalStudy QuantitativeAnalysisofPerfluorooctaneSulfonicAcid PotassiumSalt (PFOS, T-6295)inCynomolgus Monkeys FollowingAdministrationofa 4- Week CapsuleToxicityStudy 3M ET & SS StudyNumber: AMDT-041598.1 In-VivoStudyReferenceNumber: Covance6329-222 TestSubstance:PerfluorooctaSnuelfoniAccid PotassiumSalt(PotassiuPmerfluorooctane SulfonateC),F17SO3-K'(PFOS,T-6295) Name and AddressofSponsor: 3M ToxicologyServices Building220-2E-02,3M Center St.Paul,MN 55144-1000 Name and AddressofBiological-PhaFsaecility: Covance LaboratorieIsnc.

--_ 1 ARARG_ Fubl i ~ 48 000415 | | Da || !

6) OECD 471-OPPTS 870.5100, Bacterial reverse mutation test (Ames test), 0623-2140 SANITIZED DEC 0 9 2003 F"AL REPORT Primedica Redfield Test Article: Potassium Perfluorobutane Sulfonate SITEK Study NO. 0623-2140 July 12, 2001 7A. .SITEIC R E S E A R CLHABORATORIES 15235 Shady Grove Road, Suite 303, Rockville, Maryland 20850 301/9264900 FAY 301/926-8891 Study Title Evaluation of a Test Article in the Salmonella typhimurium/Escherichia coli Plate IncorporatiodPreincubation Mutation Assay in the Presence and Absence of Induced Rat Liver S-9 Test Article I.D.

ANALYTICAL REPORT FROATFOSAnsys [rp---- LS ANN) nT proedmiO cts i STL ---- IT-- 3N1DeACeanrac8g0LW7ao5net SeverTetLaboratoriSeTsL, Denver PGooeltDeMkaunzazgoer Vay, 3007 IE Ten DEp2soWe.au0sss CasDe NDarSraItive "MTahneuarles.ultAsllinrcelsuudltesdhianvtehibsereenpofrotuhnadvteobmeeeentraelvireewqeudirfeomrenctosmoplfiNanEcLeAwiCthantdheaLnaybeoxrcaetpotriyonQusaslirtynoted below.

special Le7n-s2O9r99aCloCTeriantoRlaotsgy Study of Experiment You: conducted At: Dosing Period: Study Director: 066070020 SRiakfeertyLaEbvoarlautaotriioens,LabIoncr.atory St.

Le RecoyrporSatenTioo and.

| AR226-1387 || || - ` @UPIRD 1. owu PiontmoF NGewao&1Cu5o09un8rasnr e=essouy, 4m cmeroerriag E9Sle cc: A.

AR226-1400 | 8 .

CLIENT ID: sakmp* Drn"*: Blank Data FS.name: Cd.

WASHINGTON WORKS - PERMIT WV0001279 TREATED SUPERNATE DISCHARGE THROUGH FILTER SYSTEM (Letter, R- L Rilchey to Ms.

AR226-2636 24 AR226-2636 MARCH 2003 2ND ROUND C-8 SAMPLING DUPONT FAYETTEVILLE WORKS FAYETTEVILLE, NORTH CAROLINA Date: June 2003 Project No.: 18983753.00037 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 March 2003 2nd Round C-8 Sampling Introduction On March 27th 2003, gromidwater was sampled from four monitoring wells at the DuPont Fayetteville Works, m addition, a combined surface and wastewater sample was collected above Outfall-002.

RARE- 2697 19 | #R3R6-2697 DuPont13202 TRADE SECRET Study Title i J: Hydrolytic Stability of[ Jas a Function of pH `TESTGUIDELINES: OECD Guideline 111 AutHOR: Bogdan Szostek, Ph.D.

AR226-2920 FOR DU PONT USE ONLY Copies to: Haskell E.

AR226-3062 DllPont HLR 902-96 HASKKLL LABORMORT FOR TOXICOLOGY AMD XHDOSTXXAL lODZCm STATIC, ACOTX SS-BOHR SCMXNXDa TK8T 0 B-21952 TO rXTHKAD MXNKON8, PlltTglUltr Pro--la* PURPOSE: This is a rangefinding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.