AR226-1307-6 HHaesalktehlalnLdaboErnavtiorroynmfeonrtal Sciences 1090 Elkton Road Newark, DE 19714.

BattelleFi Georgia C Exposure I I BattelleFieldSampling ProceduresReview Columbus Georgia City-Survey regarding EmpiricalHuman Exposure Assessment Multi-CityStudy To Susan Beach - ProjectLead 3M9 ET & SS PO Box33331 Building 2-3)Z-09 St.Paul,MN 55133-3331 651-778-7452 - August 3,1999 Prepared by JessEldridge- Reviewer 3M9 ET & SS PO Box 33331 Building2-3E-09 St.Paul,MN 55133-3331 651-778-5233 Review Objective The objectiveofthe on-sitereviewwas to observethe samplingand handlingtechniquesused by Battelle duringtheColumbus, Georgia citysurveyforappropriatenesasnd completenesswithinthecontextof the Multi-CityHuman Exposure AssessmentStudy (MCHEAS).

CORNINGHazleton MUTAGENICITY TEST WITH T-6357 IN THE SALMONELLA - ESCHERICHL4 COLIMAMMALIAN-NECROSOME MUTATION ASSAY FINAL REPORT AUTHOR Timothy E.Lawlor,M.A.

HAZLOTON LABCFUCCRiEs APAERICA.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorodecanesulfonatea,mmonium salt:may also be referred toas PFDS, FC-1 20, or 3M Sample J2905-1.(1-Decanesulfonic acid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10heneicosafluoro-a,mmonium salt,CAS # 67906-42-7) Remarks: Test sample isa mixtureofthe testsubstance inwater and butylcellosolve(approximately25% testsubstance,37.5% butyl cellosolvaend 37.5% water).Allvaluesreportedrelatetothismixture.

BIODEGRADATION (BOD/CODITOC) TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acetmaatye;alsobe referredtoas PFOSAA, FC-128 oras the major component of FC-127 or FC-129.

3M General Ofrices 3M Center St.Paul,MN 55144-1000 612733 1110 May 25, 2000 VIA EXPRESS MAIL Dr.Charles Auer Director Chemical ControlDivision OfficeOf PollutionPreventionAnd Toxics UnitedStates EnvironmentalProtectionAgency 401 M Street,Southwest Room 403 East Tower (MailCode 7405) Washington, D.

BIOSEARCH.INC.

InternaClorrespondence -tt To.D.

SOIL ADSORPTION TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium salt,Ammonium perfluorooctanoateP,FO, FC-116,FC-126,FC-169,orFC-143.

ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may also be referredto as PFOA ammonium saltA,mmonium perfluorooctanoateP,FO, FC-1 16, FC-126, FC-1 69, FC-143, oras a major component of FX-1003.

ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:Mixturecontainingperfluorooctanesulfonawtheich may also be referredto as PFOS, FC-95, oras a component of FC-201 F.

MICROBICS MICROTOXO TOXICITY TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-602. (1Octanesulfoniaccid)(CAS # 2795-39-3).

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooetanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FX-3103. (1Octanesulfoniaccid)(CAS # 2795-39-3).

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