ar &A6- 0 7 og ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-201F-X. (1Octanesulfonic acid) (CAS # 2795-39-3).

M AS.6 - O ACUTE TO XIC ITY TO FISH TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate;, which may also be referred to as PFOS, FC-95, or as a component of FC-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

M &Z6 - ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorcoctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-600. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The 3M production lot number was 628.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE ___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of L-4647. (1Octanesulfonic acid) (CAS # 2795-39-3).

f o r m 8 7 4 7 -1 1-A ORIGINAL TECHNICAL REPORT SUMMARY TO: T E C H N IC A L C O M M U N IC A T IO N S CEN TER - 201-2CN ,im portant -- If report is prin ted on both sides o f paper, send two copies to T C C J O ivision CRL - Analytical and Properties Research Laboratory Project Trace Fluorochemicals in the Environment R eport Titla ~* -- IRDC 137-092: FC-95/Monkey To J.

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A R 6 - ISOS FEBRUARY 2003 SURFACE WATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS WASHINGTON, WV Date: April 2003 Project No.: D6WW7423.01 18983632.00028 18983633.00026 18983634.00026 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 0003S3 NO CBI WVDEP 17572 Surface W ater Monitoring Report Table of Contents TABLE OF CONTENTS 1.0 Introduction...................................................................................................................1 2.0 C-8 Analytical Reporting............................................................................................. 2 3.0 Washington Works Facility.........................................................................................4 4.0 Local Landfill............................................................................................................... 5 5.0 Letart Landfill.............................................................................................................. 6 6.0 Dry Run Landfill.......................................................................................................... 7 7.0 References.................................................................................................................... 8 Table 1.0 Table 2.0 Table 3.0 Table 4.0 TABLES C-8 in Surface Water - Washington Works Facility C-8 in Surface Water - Local Landfill C-8 in Surface Water - Letart Landfill C-8 in Surface Water - Dry Run Landfill Figure 1.0 Figure 1.1 Figure 1.2 Figure 2.0 Figure 2.1 Figure 2.2 Figure 3.0 Figure 3.1A Figure 3.IB Figure 4.0 Figure 4.1 FIGURES Site Location Map - Washington Works Facility Surface Water Sample Location Map - Washington Works Facility C-8 Concentration Map February 2003 - Washington Works Facility Surface Water Site Location Map - Local Landfill Surface Water Sample Location Map - Local Landfill C-8 Concentration Map February 2003 - Local Landfill Outfalls Site Location Map - Letart Landfill Surface Water Sample Location Map - Letart Landfill Rt. 33 Stream and Brinker's Run Surface Water Sampling Locations Letart Landfill Site Location Map - Dry Run Surface Water Sample Location Map - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE i 0G03S4 Surface W ater Monitoring Report Table of Contents Figure 4.2 C-8 Concentration Map February 2003 - Dry Run Landfill Outclass Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F APPENDICES Laboratory Analytical Data Reports - Washington Works Facility Chain-of-Custody Records - Washington Works Facility Laboratory Analytical Data Reports - Local Landfill Chain-of-Custody Records - Local Landfill Laboratory Analytical Data Reports - Dry Run Landfill Chain-of-Custody Records - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE ii 000385 Surface W ater Monitoring Report Introduction 1.0 INTRODUCTION A multi-media consent order (Order No.

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3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May 11, 2004 TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Click on Study Title to View Report Multiple Chemicals PAGE 1, 2, 3 Human Sera/Medical Surveillance/Epidemiology 1.

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fid 6 - 1 3 ^ 7 SRPT T-76fci MIN 315/022356 PERFLUOROOCTANESULFONYL FLUORIDE (POSF) T 'lk k l.3 /A V/T0 MAMMALIAN CHROMOSOME ABERRATION TEST IN HUMAN LYM PHOCYTES Sponsor 3M Center 3M Corporate Toxicology Building 220-2E-02 St Paul MN 55133-3220 USA Page 1 of 31 Research Laboratory Huntingdon Life Sciences Ltd Woolley Road Alconbury Huntingdon Cambridgeshire PE28 4HS ENGLAND Report issued 22 October 2002 001542 MIN 315/022356 CONTENTS Page CONTENTS.......................................................................................................................... 2 COMPLIANCE WITH GOOD LABORATORY PRACTICE STANDARDS..................... 4 QUALITY ASSURANCE STATEMENT............................................................................. 5 RESPONSIBLE PERSONNEL............................................................................................. 6 SUMMARY.......................................................................................................................... 1 INTRODUCTION.................................................................................................................. 8 TEST SUBSTANCE.............................................................................................................. 10 EXPERIMENTAL PROCEDURE......................................................................................... 11 ASSESSMENT OF RESULTS.............................................................................................. 15 MAINTENANCE OF RECORDS......................................................................................... 15 RESULTS.............................................................................................................................. 16 CONCLUSION...................................................................................................................... 17 REFERENCES....................................................................................................................... 18 :2: 001543 MIN 315/022356 COMPLIANCE WITH GOOD LABORATORY PRACTICE STANDARDS The study described in this report was conducted in compliance with the following Good Laboratory Practice standards, with the exceptions stated below, and I consider the data generated to be valid.