Ou ui Ai ssSuryancSeat mrpelicngt Tlaasnk (100672) AmeAnR1dt2oRme1vie6sio-nnN0ots0: 71 7 `Efecive Da: nealg,e1o9f939 Amendment 1 to the EN-s Quality Assurance Project Plan and Associated SOP's for Empirical Human Exposure Assessment Multi-City Study Sampling Task To (Confidential) June 16,1999 Prepared by Battelle 397 Washington Street .

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(a R-y) p ry ARR26 _ [333 moWASo HINGTONm , 0.6.so20r4o 6c0nonso ce Certified Mail Remwrn Receipt Requested JRrE--E-- Andrea Malinowski (D-8078-1) E.L du Pont de Nemours and Co.

Hexafluoroisopropanol (HFIP) and gel permeation chromatography of polyesters and polyamides Gel permeation chromatography (GPC, also known as size exclusion chromatography, SEC) is a liquid chromatography method that analyzes the molecular weight distribution of polymers.

3M SPECIALTY ADHESIVES & CHENUCALS ANALYTICAL To: Leo Gehlhoff-(309727)-3M Chemicals-236-2A-01 LABORATORY Reques#t's53030 EEQM@ Tom Kestner- (3-5633)SA&C AnalyticaLlab -236-2B-II Spbiect: I-7uorockenucalIsomer Distnbution by 'PF-NMR Spectroscopy Date: December 1,1997 SAMPLE DESCRIPTIONS: FC-95,lot# 217 (T-6295);Nominalproduct= CgF17-SO3(-K)(+) INTRODUCTION: Thissamplewas subjectedtoa '9F-NMR spectraalnalysimsethod to determinetheidentitiaensd relative concentrationosf thefluorochemicailsomersand asmany otheridentifiabilmepuritycomponents as possible.

Corperati HealthPhysics Corporate OccupationalMedicine Corporate Product Responsibility Corporate Toxicology 3M Medical Department 3M Center,220-2E-02 PO Box 33220 St.Paul,MN 55133-3220 651733 1110 An EpidemiologicAnalysisoftheInpatientand OutpatientClaims Event and EpisodeExperienceof3M Decatur Employees,1993-1998 The purposeofthisresearcphrotocolisto examinetheCorporateHealthStrategies Ingenix(CHS) inpatienatnd outpatientclaimsdatabasesfrom January1,1993 through December 31, 1998 ofDecaturchemicaland filmplantemployees.Claims dataarenot availablferom CHS priorto 1993.

BOILING POINT TEST SUBSTANCE Identity:N -Ethyplerfulorooetanesulfonamide;may alsobe referredto as U 1464, ETFOSA, ETPOSA, F-6309, or FX-12. (1Octanesulfonamide,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-ethylC-A,S # 4151-50-2) Remarks: Materialisa white solidofuncharacterizedpurity.

AOVANCEO BIOANALYTICAL SERVICES, INC

CORNINGHazleton MUTAGENICITY TEST ON T-6564 IN AN IN VIVO MOUSE MICRONUCLEUS ASSAY FRNAL REPORT Eli/, NOV r-, 1996 ,x 3,.4 0 ico@-L' AUTHOR Hemalatha Murli,Ph.D.

or AARR22262_6- -33636]41 suewROwaET:eAsORATORY Final Report Analysis of PFOA, PFOS, PFHS, and PFBS From Newly Constructed Wells at the Oakdale, Minnesota Disposal Site Laboratory Request Number: E06-0151 Method Requirement: 3M Method ETS-8-154.1 (modified) Testing Laboratory 3M EHS Operations 3M Environmental Laboratory Building 2-3E-09 935 Bush Avenue St.

ft^ - 00,0 TRANSPORT BETWEEN ENVIRONMENTAL COMPARTMENTS (FUGACITY) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic add, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: NA METHOD Test (test type): Fugacity Modeling Method: Level I, II, and III EQC Computer Modeling Year completed: 1999 Remarks field for Test Conditions: Modeling conducted by Don Mackay of D.

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BACK TO MAIN MULTI-CITY STUDY FIELD REPORT FOR FINFISH, MICRO-LAYER AND BULK WATER COLLECTION IN CLEVELAND TENNESSEE, DECATUR ALABAMA, AND COLUMBUS GEORGIA for Project Number 31565 submitted to September 23,1999 Prepared by David K.