MMeemmoo ATTACHMENT 8............"" hMaDtHa ToDaDtaete:: To: FFrroomm:: Subject: TTeno tedr AApprriill 44,, 22000077 Tim Scherkenbach MAMisinnsninseetsasoontttaaCPPooomllllmuuttiiisoosninoCCnoeonrnttrrooll AAggeennccyy IEiLmeSr ,HDaiDDiisss John Linc Stine, Division Director, > a .John Linel Siine, Di~6sion Director ~~ Environmental Health Division / ~/ ",_.~ " Minnesota Department of Health l./ ' Hazard Determination of PFOA and PFOS er ep ep, TThhiiss mmeemmoorraanndduumm iiss iinn rreessppoonnssee ttoo yyoouurr qquueessttiioonn rreeggaarrddiinngg tthhee ppootteennttiiaall ffoorr ppeerrfllluuoorrooooccttaannee sulfonate (PFOS) and perfluorooctanoic acid (PFOA) to pose a substantial present or potential..

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. 10500 157 Attachments to Letter to C.

ARL26 - 1012 PTihvesics ade" Ue - April 24,2001 "CThreamciysGt.

s5qiq HRY =1067 26ff L > i " Yo 0202.01278 FEOTIVED LRT eTE IIE Rio To.

Telomer Research Program FV De ACC TR = Clariant TUPOND -------------------------------- RMuetpaotritonTitAlses: aPyurwiiftiheda Co-n2fiAlrcmoahtoolr:y Salmonella Assay Escherichia coli/Mammalian- Microsome Reverse Author(s): Leon F.

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3M Manufacturing Facilities Analysis of Alfalfa Harvested from 3M Cordova, Illinois Plant Facility BACK TO MAIN Executive Summary 3M Environmental Laboratory June 21, 2001 In the fall of 2000, samples of alfalfa being grown on the 3M Cordova Plant (Cordova, Illinois) property were collected by plant personnel.

FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

BACK TO MAIN BIODEGRADATION STUDY REPORT The 35-Day Aerobic Biodegradation Study of PFOS Thursday, March 29, 2001 PROJECT NUMBER 3M Project ID: LIMS E01-0444 Pace Contract Analytical Project ID: CA104 STUDY DIRECTOR Cleston C.

DuPon-15302 Study Title Ammonium Perfluorooctanoate: `Age Effect on the PFOA Plasma Concentration in Post-Weaning Rats Following Oral Gavage TEST GUIDELINES: Noneapplicable AuTHOR: Paul M.

sormemymemesonce oon oisEono,cmce fP iertT l h RTogEer. sickoeam \ TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATPIr, OHIO 45202-3957 FAX 513.391.0208 [r--e coomm once oT L TR am cW oSt E sSaan AR222%- 9025 February 7, 2005 FEDERAL EXPRESS Dr.

AR226-2255 Chris EShoop 02/08/2002 03:23 PIVI _ _ _____ To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont Subject Re: C8 2001 Emissions D Debbie, I have calculated emissions for 2001 but the emitted amounts are not broken out by emission point.

AR226-2359 DRAFT PHASE II QUALITY ASSURANCE PROJECT PLAN DUPONT WASHINGTON WORKS SITE WASHINGTON, WEST VIRGINIA Date: March 2004 Project No.: 507532 18983990.04006 ^ CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 EXP000431 Draft Document Do Not Cite or Quote, March 30, 2004 Draft Phase II Quality Assurance Project Plan Table of Contents TABLE OF CONTENTS 1.0 Project 1 Management................................................................................................... 1.1 Project Background.....................--.--............................................................... 1 1.2 Project Description............................................................................................ 2 1.3 Project Organization..........................................................................................3 1.3.1 Project Director.................................................................................... 3 1.3.2 Project Manager................................................................................... 4 1.3.3 Health and Safety Officer.................................................................... 4 1.3.4 Project Geologist................................................................................. 4 1.3.5 Technical Consultants.......................................................................... 4 1.3.6 Technical and Support Staff................................................................ 4 1.3.7 Quality Assurance Officer................................................................... 5 1.3.8 Project Chemist................................................................................... 5 1.3.9 Laboratory Personnel........................................................................... 5 1.3.10 Data Review Responsibilities.............................................................. 5 1.4 Quality Objectives............................................................................................. 6 1.4.1 Data Quality Characteristics................................................................ 6 1.4.2 Data Quality Objectives....................................................................... 6 1.4.3 Measurement System Characteristics.................................................. 7 1.5 Training/Certification........................................................................................9 1.6 Documentation and Records............................................................................. 9 1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7 Document Control ...............................................................................9 Field Logbook...................................................................................... 9 Sample Log........................................................................................ 10 Laboratory Deliverables.................................................................... 10 Report Preparation............................................................................. 13 Electronic Data Deliverables............................................................. 13 Archival Requirements..............................,..........,.........----....--... 13 2.0 Data Generation and Acquisition............................................................................. 14 2.1 Sampling Process Design................................................................................ 14 2.1.1 Sample Naming ................................................................................. 14 2.2 Sampling Methods.........,......--...............--.................------.......------. 15 2.2.1 Preliminary Activities........................................................................ 15 2.2.2 General Instructions for All Sampling............................................... 16 2.2.3 Soil Boring and Soil Sampling.......................................................... 18 2.2.4 Well Construction in the LHWA Well Field..................................... 19 2.2.5 Well Development............................................................................. 19 2.2.6 Groundwater Sampling (Wells)......................................................... 19 2.2.7 Groundwater Sampling (Taps)...................-.........-.-.................-.... 21 2.2.8 Surface Water Sampling of Springs and Cisterns. ----......--........... 21 2.2.9 Air Modeling Verification Study Sampling.......--......----.................22 2.2.10 Meteorological Measurements..--.......----.--...------.---- .....23 <N 2.2.11 Surface Soil/Biota (Vegetation) Sampling .................................--..24 o -------------------------------------------------------------------------------------------------------------------------------------------------------------------- 0 0.-:'' Phase II Quality Assurance Project Plan_033004.doc I ~ .

Analyse von Kltemittel-Emissionen der Klte- und K limaanlagen in Deutschland Aktuelle Analyse von rund 54.000 Anlagenbetreibern mit mehr als 238.000 Klte- und Klimaanlagen der VDKF-LEC-Nutzerdaten Zur Sicherstellung der geforderten und gesetzlich vorgeschriebenen Aufzeichnungspflichten sowohl fr den Klte-Klima-Fachbetrieb als auch fr Betreiber von Klte- und Klimaanlagen setzen mittlerweile ber 1.100 Fachbetriebe und Anlagenbetreiber in Deutschland und der EU auf VDKF-LEC.