P-1 ^ 2Z-377 L PFOS: A 96-HOUR STATIC-RENEWAL ACUTE TOXICITY TEST WITH Lumbriculus variegatus FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

ANALYTICAL REPORT PFOA/PFOS Analysis Lot#: D8C200280 United Water New Jersey and UW-Rahway Sheng-Lu Soong, Ph.

3M ENVIRONMENTAL LABORATORY REPORT NO.

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SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 245156 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Sue Stefanosky Date: 03/30/2006 Signature Name: Richard C.

r--- ----------- - Corporate Health Physics Corporate Occupational Medicine Corporate Product Responsibility Corporate Toxicology 3M Medical Department 3M Center, 220-2E-02 PO Box 33220 St.

Attachments to Letter to C.

ACUTE TOXICITY TO FISH (Sheepshead Minnow) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic 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 test substance is a white powder.

3M Medical Department Study: T-6889.3 Analytical Report: FACT TOX-026 LRN-U2782 Study Title 26-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO/POAA) in Cynomolgus Monkeys Amended Analytical Laboratory Report Title Determination of the Presence and Concentration of Perfluorooctanoate Fluorochemical in Liver, Serum, Urine and Feces Samples Data Requirement Not Applicable Author 3M Environmental Laboratory Analytical Phase Completion Date June 11, 2001 Performing Laboratories Liver, Serum and Urine Analyses Feces Analyses 3M Environmental Laboratory Centre Analytical Laboratories, Inc.

AR22&o 5M Attachments to Letter to C.

.S.6 _05 RECEIVED oppi neic : i( 2000 SEP-6 PM12=56 \ 1 I

, 3M Environm ental Technology and Services / f May 10, 2002 PO Box 33331 St.

RECEIVED o pp umi 2082 SEP 2 AN III!

Environmental Working Group ||Policy Memo: DuPont, Teflon, Water, Contamination, ...

; 9 pp 3M 3M General Offices Lm K n 55144-ioco 612 733 1110 AR226-1541 - 1003 - l RECEIVER oppt cm : 2003 OCT 2 9 A H i h 01 Bv Courier October 28, 2003 Document Processing Center - CBIC (7407M) 'hh Room 6428 East / Phone 202-564-8940 Attn: TSCA Section 8(e) Coordinator Office o f Pollution Prevention and Toxics US Environmental Protection Agency 1201 Constitution Avenue NW Washington DC 20460-0001 8 EHQ 0 y RE: TSCA 8(E) SUBSTANTIAL RISK NOTICE ON: 1-Butanesulfonamide, 1,1,2,2,3,3,4,4,4-nonafluoro-n-methyl ('N-MePFBA') [CAS 68298-12-4] 63 Dear Sir/Madam: 3M has received preliminary data for a combined repeated dose toxicity study with a reproduction/developmental toxicity screening test in rats conducted with a chemical intermediate, 1-Butanesulfonamide, 1,1,2,2,3,3,4,4,4-nonafluoro-n-methyl [CAS 68298-12-4] (N-MePFBA) indicating reproductive and possible neurotoxic effects.