AR226-2147 INTEROFFICE MEMORANDUM Date: Front: Dept: Tel No: 19-Oct-1994 09:05pra Roger J.

AR226-2226 EID295000 Stack Parameters 1823A 815D 815D 1353A Pre-Existing 614A 614A 781 1933 2365A Semiworks Application Semiworks Application Semiworka Application Semiworka Application `Vent ID J61ZCE consists o f 18 one-foot diameter vents.

AR226-2269 STT-91-1 APPENDIX I SPRUANCE C8 ASSESSMENT II

AR226-2460 y w y w w w y w w w y tw * v> -- * w ?

AR226-2655 AR226-2655 ISC Modeling Methodology and Results Introduction This report summarizes dispersion modeling that was completed for the DuPont Washington Works facility to demonstrate that the emission limits included in the form R13 permits (815E, 1353B, 1953B, and 2365C) comply with the C-8 assessment o f toxicity (CAT) recommended airborne screening level of 1.0 ug/m3 at the property line fence.

AR226-2730 DuPont EMSER Report No. 97-03 Study Title A ctivated Sludge Respiration Inhibition Test of Z onyl^ B ^ ) (OECD 209) Test Guideline(s) OECD (1984) Guideline for Testing of Chemicals, Section 2, No. 209: "Activated Sludge, Respiration Inhibition Test", adopted April 4, 1984 Author(s) William R.

AR226-2895 i E.

AR226-2994 **Vr- .a Baugy, June 17, 1993 STUDY NO 9?

TRADE SECRET AR226-3177 DuPont-6087 Study Title H-24516: Skin Irritation Test in Rabbits Laboratory Project ED: DuPont-6087 Author: Carol Finlay, B.A.

Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations AR226-3348 SETAC North America November, 2003 Austin, TX Development of analytical methodology for determination of Telomer B alcohols, Telomer-derived anionic, nonionic fluorosurfactants, and polymers.

AR226-3371 (STOP DuPont Central Research and Development April 21, 1994 OuPom Centrai Research and Development Haskell Laboratory far Toxicology and Industrial Medicine P.Q.

PFOA Distribution - June 2006 = ND = 0.2 - 0.9 ug/L = 1-1. 9 ug/L = 2- 5. 9 ug/L = 6-9. 9 ug/L >10 ug/L O Private well Li City weil Monitoring we -fa Surface water I I no results yet PFOS Distribution - June 2006 jilt PFOS Concentrations = ND O Private well = 0.2 - 0.9 ug/L C- City well = 1-1.9 ug/L Monitoring we = 2- 5. 9 ug/L = 6- 9. 9 ug/L | > 10 ug/L no results yet &m.

gens. too6. ti' fg MZ76- illf-f DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.O.

Jean B.

3M Environmental, Health and Safety Operations 3M Center, Building 0224-05-W -3 S t Paul, M N 55144-1000 3 3 7 (o October 14,2010 Via Hand Delivery Document Control Office Docket AR-226 EPA East Building, Room 6428 1201 Constitution Ave., N.W.