Box 50 Newark, Delaware 19714-0050 LABORATORY PROJECTID: DuPont-15302 `WORK REQUEST NUMBER: 15339 SERVICE CODE NUMBER: 1389 Sponsor: EL. du Pont de Nemours and Company Wilmington, Delaware 19898 USA. and 3M Company 3M Center Building St.

DuPont Co. (2000).

DuPont Co. (2000).

The goal of DuPont is to minimize exposure to

Path Forward Execute MOU covering GIST recommendations Gain agreement on OEPA proposal an DuPont suggestions Propose the additional testing (OEPA proposal and DuPont suggestions) at t ECA process on December 9 VH S M 0 M ?

CBI is redacted so it is borderline useless August 26, 2005 (3M) Initial Quantitative Screening of Human Serum (obtained in 2004) for Endogenous Fluorochemicals Follow-up study is next December 19, 2005 (3M) Definitive Study: Quantitative Screening of Human Serum for Endogenous Fluorochemicals PFPeA was a fluorochemicals that was screened May 27, 2009 (DuPont) Occupational serum results for PFHxA at the West VA facility June 25, 2009 (DuPont) Occupational Serum Sample Results for PFHxA January 9, 2013 (Taft) Submitted the following paper relating human health effects to PFOA and PFCs: o Javins, B., et aL', "Circulating Maternal Pertluoroalkyl Substances during Pregnancy in the C8 Health Study," Environ.

TRADE SECRET DuPont HL-1997-00716 AR226-3076 Study Title H-22762: Skin Irritation Test in Rabbits Laboratory Project E): HL-1997-00716 AUTHOR: Carol Finlay, B.A.

AR226-2809 DuPont-12988 TRADE SECRET Study Title H-24750: Static, Acute, 96-Hour Screening Test to Oncorhynchus mykiss Laboratoiy Project ID: DuPont-12988 A u t h o r s : Laurie D.

Does not contain TSCA CBI -^- H-24750: Static, Acute, 96-Hour Screening Test to Oncorhynchus mykiss DuPont-12988 D.

Path Forward Execute MOU covering GIST recommendations Gain agreement on OEPA proposal and DuPont suggestions Propose the additional testing (OEPA proposal and DuPont suggestions) at the ECA process on December 9 i Air Topics Modeling Results Sept 2002 - Aug 2003 Air Permit Update Additional Reduction Programs Air Modeling Verification Project - Phase I: Fence Line Monitoring - Phase II: Community Monitoring UKJ U) 1U0> ASH028059 i: Modeling Methodology 1 EPA's Industrial Source Complex 3 (ISCST3) Model Followed procedures in EPA's Guideline on Air Quality i Models (Appendix W) !

AR226-2625 13 PMD AR226-2625 DuPont Engineering Barley Mill Plaza-BIdg. 27 4417 Lancaster Pike Wilmington.DE 19805 October 19,2004 Mr.ToddKelleher Environmental Supervisor Chemical Monitoring Compliance Unit Ohio Environmental Protection Agency Columbus, Ohio 43216-1049 Earnhart Hills Public Water System Circleville, Ohio Dear Mr.

Sample quarterly in conjunction with production well sampling. o to CD 00011 i Proposed Additional Investigation on Ohio -Little Hocking and Porterfield Areas DuPont Suogogested Modifications Establish 8 locations for surface soil sampling in these areas based on results of air and groundwater modeling: - Two sampling events will be conducted, one directly after a >.5 inch rain event, the other after 5 days of no precipitation.

DuPont-12990 Study Title H-25767: Static, Acute, 48-Hour Screening Test to Daphnia magna A u t h o r : Barbra D.

RECYCLED CO AR226-2625 mm AR226-2625 DuPont Engineering Barley Mill Plaza - Bldg. 27 4417 Lancaster Pike Wilmington, DE 19805 October 19,2004 Mr.

Does not contain TSCA CBI H-24616: Hydrolytic Stability o f H-24616 as a Function o f pH DuPont-13970 LIST OF TABLES Page 1.