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3M General Offices 3M Center St.

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NOTE TO FILE - AR 226 DATE: March 28, 2001 FROM: Karen Lannon SUBJECT: 3/26/01 Perfluoroalkanoic acids VC0^0 /o o ?

JJ16 - 1 1 ^ r-r.r i BIODEGRADATION STUDY REPORT R evision 1 Wednesday, November 06, 2002 Biodegradation Screen Study for Telomer-Type Alcohols Project Number 3M Projects ID: E01-0684 Pace Contract Analytical Projects ID: CA085 Study Director Cleston C.

to COLUM BUS, OHIO OFFICE TW ELFTH FLOOR 21 E A ST STATE S T R E E T COLUM BUS, O HIO 43215*4221 614-221-2838 FAX: 614 -2 21 -2 0 07 Ro b er ta .

19 of 30 A R S - \So3 C-8 DATA SUMMARY REPORT CONSENT ORDER GWR-2001-019 DuPont Washington Works Facility and Local, Letart And Dry Run Landfills February 2003 Project No. 7423 18983635 Prepared by t j ON NIVlNQQ CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 000008 OEPA 4053 DuPont Engineerifig Barley M ill Plaza i Bldg, 27 Lancaster Pika & Rte. 141 Wilmington, DE 19805 DuPont Engineering February 5,2003 David P.

3M Specialty Materials 3M Center St.

Multiple Chemicals 3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 ENVIRONMENTAL STUDIES Click on Study Title to View Report PAGE 1 Environmental Monitoring 1.

TOXICITY TO TERRESTRIAL PLANTS TEST SUBSTANCE Identity: P e rflu o ro o cta n e su lfo n a te ; m ay also be referred to as PFO S or FC-95. (1-O ctanesulfonic 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 te st su b sta n ce is a w h ite pow der.

3M General Offices 3M Center F St.

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Toxicological Summary PFOS Dietary Acute Northern Bobwhite Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

Atete-tU7 (MO) %HCk-Ocl4-O 373 September 17, 2004 Via Federail Express Document Processing Center (Mail Code 7407M) Room 6428 Attention: 8(e) Coordinator Office of Pollution Prevention and Toxics i^J.S.

telZb'lZ PFOS: A REPRODUCTION STUDY WITH THE MALLARD FINAL REPORT WILDLIFE INTERNATIONAL, LTD.