AR226-2323 / Irene A Legiec 04/03/2003 10:40 AM To: Ann K Masse/HO/DuPont@DuPont cc: Mark D Richmond/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont, Richard S Viekery/AE/DuPont@DuPont, Maria S Angelo/AE/DuPont@DuPont, Paul J Gorzsas/ABDuPont@DuPont Subject Re: Dispersion modeling data Q Ann, W e have a ballpark number for influent data.

AR226-2326 { 'f John W M ilroy_III 04/04/2003 11:09 AM To: cc: S u b je ct Catherine A Barton/AE/DuPont@DuPont Stephen R Hastings/DDE/DuPont@DuPont, Ann K Masse/HO/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@ DuPont Re: Data fo r a ir dispersion modeling Q Stack height is 25 feet.

AR226-2360 E L du Pont de Nemours and Company W ashington W orks Halb P.O.

AR226-2814 DuPont-14096 TRADE SECRET Study Title H-24750: Static, Acute, 48-Hour Toxicity Screening Test with Daphnia magna Authors: Barbra D.

P-1 ENVIRONMENT CANADA AND HEALTH CANADA CONSULTATIONS ON THE PROPOSED ACTION PLAN FOR PERFLUOROCARBOXYLIC ACIDS AND PRECURSORS REPORT OF CONSULTATION MEETING Ottawa, Ontario, Canada February 6 and 7,2006 P-2 Table of Contents INTRODUCTION............................................................................................................... 2 WELCOME/OBJECTIVES..............................................................................................3 PART 1 THE SCIENTIFIC CONTEXT................................................................... 4 PFCAs and Precursors: Simplified Terminology/Sources and Fate...............................4 Environmental Fate of Fluorotelomer Based Substances...............................................5 External Review and Science Update............................................................................. 8 PART 2 THE REGULATORY CONTEXT.............................................................. 8 Assessment and Management of Substances.................................................................. 9 PART 3 PROPOSALS ON PFCAs AND PRECURSORS...................................... 9 Overview o f Proposed Action Plan................................................................................. 9 Proposed Action Plan: New Substances....................................................................... 11 FEEDBACK ON PROPOSED ACTIONS FOR NEW SUBSTANCES.............12 Process for preparing a Regulatory Impact Analysis Statement.................................... 13 Proposed Action Plan: Existing Substances...................................................................14 FEEDBACK ON PROPOSED ACTIONS FOR EXISTING SUBSTANCES .. 14 Proposed Action Plan: Research and International Cooperation..................................16 CLOSING COMMENTS AND NEXT STEPS............................................................. 18 APPENDIX A: Consultation Agenda APPENDIX B: List of Participants Environment Canada Health Canada - PFCAs and Precursors: Action Plan Consultations - Report page 1 P-3 INTRODUCTION In 2004, the New Substances Program of Environment Canada and Health Canada assessed four new substances which are considered sources of perfluorinated carboxylic acids (PFCAs).

EOS-0210 Interim Report #18 Northern Alabama Potable Witter Systems, December 2005 Interim Report #18: Analysis of Water Samples from Northern Alabama Potable Water Systems, December 2005 Study Title A nalysis of Perfluo robutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), an d Perfluorooctanesulfonate (PFOS) in Wate r , So il, S edim ent, Fis h , Clam s, V eg etatio n , Sm all Mam m al Liver an d Sm all Mam m al S erum Using LC/MS/MS FOR THE 3M DECATUR MONITORING PROGRAM Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author M ichelle D.

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EOS-0210 Interim Report #18 Northern Alabama Potable Witter Systems, December 2005 Interim Report #18: Analysis of Water Samples from Northern Alabama Potable Water Systems, December 2005 Study Title A nalysis of Perfluo robutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), an d Perfluorooctanesulfonate (PFOS) in Wate r , So il, S edim ent, Fis h , Clam s, V eg etatio n , Sm all Mam m al Liver an d Sm all Mam m al S erum Using LC/MS/MS FOR THE 3M DECATUR MONITORING PROGRAM Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author M ichelle D.

*+2Z(>` tC83 From: 8 n a rt J on 10*12/2001 12:36 PM To rwMyJjmi Q h ia m l com cc: rmniityQPoOndnrtic not, mptaQthofotiogroup.com. imotzQwiimingtontnjstcom Subject Oct 12 Hi Bom, Another groat weather day here, plenty of sunshine, shirt weather and Oct 12. previously known as Columbus Oay.

Enclosure 3 Removal of PFOA with Granular Activated Carbon 3M Wastewater Treatment System Monitoring There are many factors that can influence the adsorption of a chemical constituent onto activated carbon.

AR226-1486 ENVIRONMENTAL AND HEALTH ASSESSMENT OF PERFLUOROOCTANE SULFONIC ACID AND ITS SALTS August 20, 2003 Prepared by 3M in consultation with Jack Moore, D.V.M., DABT, Hollyhouse, Inc.

Study Title T e n n e s s e e R iv e r V a lle y S a m p le s Author Mark E.

AR226-1523 FINAL REPORT RECEIVED OPPT NCIC 03 SEP 30 PM1:00 PROTOCOL 418-028 ORAL (GAVAGE) COMBINED REPEATED DOSE TOXICITY STUDY OF T-7706 WITH THE REPRODUCTION/DEVELOPMENTAL TOXICITY SCREENING TEST SPONSOR'S STUDY NUMBER: T-7706.1 FINAL REPORT DATE: 31 JULY 2003 PROTOCOL 418-028 - ORAL (GAVAGE) COMBINED REPEATED DOSE TOXICITY STUDY OF T-7706 WITH THE REPRODUCTION/DEVELOPMENTAL TOXICITY SCREENINGTEST SPONSOR'S STUDY NUMBER: T-7706.1 TABLE OF CONTENTS SUBJECT 1.

3M Specialty Materials p - 'f f May 30, 2000 3M Center F a r - o b o o - /St.

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