AR226-2231 December 10,2001 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr.

AR226-2286 Frank D Sm ith 05/13/2002 08.-25 AM To: Catherine A Barton/AE/DuPont@DuPont cc: Kenneth N Wood/AE/DuPont DuPont, James F Riley/CL/DuPont@DuPonl, Craig L Bartlett/AE/DuPont@ DuPont Subject: TEFLON AT SPRUANCE Cathy FYI Frank Forwarded by Frank D SmrUVAE/DUPont on 05/13/2002 08:24 AM - W . sidoros J Zanikos SfisiHSHMarai To: Michael R Liberati/AE/DuPont@DuPont cc: Andrew S HARTTEN DuPont, Frank D Smith/AE/DuPont DuPont, M ichael J LukasODuPont Subject: TEFLON AT SPRUANCE M ike, the screening levels have been set in W VA as part of the consent order.

AR226-2471 DtiPoftJ VifeshiirionWorks P.0. 3dx 121?

AR226-3328 dBDira@r DratdFD Supply Chain Team Surface Protection Solutions 1 4-June-2004 Company Sanitized.

JO Katherine E.

3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-06-E-03 St.

A R S .H 6 - PERFLUOROOCTANE SULFONATE (PFOS) Dossier prepared in support for a nomination o f PFOS to the UN-ECE LRTAP Protocol and the Stockholm Convention The dossier is prepared by the Swedish Chemicals Inspectorate (KemI) and the Swedish EPA, Sweden August 2004 000288 Preliminary Risk Profile PFOS P-2 25 June 2004 000289 Preliminary Risk Profile PFOS p.3 Contents EXECUTIVE SUMMARY.......................................................................................................

%>G& P-1 3M Company EP [-0027 Page l o f 20 Date: January 9, 2006 Final Report Epidemiology, 220-6W-08 Medical Department 3M Company St.

A fL a a _ 3 T 2 7 # Ui \ DuPont Legal Andrea V Malinowski, Es.4-^ 2h l o: 5 9 Wilmington Office Buildings 1007 Market Street Wilmington, DE 19898 Corporate Counsel DuPont Environmental 1007 Market Street & fy o 10 6- 743^ Wilmington, Delaware 19898 Phone: (302) 774-6443 Fax: (302) 774-4812 E-mail address: Andrea.V.Malinowski@usa.dupont.com CONTAIN NO CBI 3 CTJ CT** C-- 6 January 2006 7 \f r VIA OVERNIGHT MAIL TSCA Confidential Business Information Center (7407M) EPA East - Room 6428 Attn: Section 8(e) U.S.

\6YY p.1 m i 2 6 - 3733 July 28, 2006 u c ; QO 05 HUG - 1 " " D ' DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.O.

M 2 S 6 _ 373C Andrea V.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 R o b e r t a .

INTERIM REPORT #28 - Analysis of Groundwater Samples STUDY TITLE Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE January 23, 2007 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

SEVERN TRENT STL STL Chicago 2417 Bond Street University Park, IL 60466 Tel: 70S 534 5200 Fax: 70S 534 5211 www.stf-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB- NUMBER: 244550 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499' Project: Confidential Decatur. - F C i I n v e s t i g a t i o n Attention: Sue Stefanosky Bate: 03/09/2006 Tille: Project Manager E - M a i l : rwright@stl-i n e .com This Report Contains Leaders in Environmental Testing Date ........

August 1,2003 VIA FEDERAL EXPRESS Document Control Office (DCO) Office of Pollution Prevention and Toxics (OPPT) US Environmental Protection Agency EPA East, Room 6428 1201 Constitution Avenue, MW Washington DC 20460 Attention: Docket No.