M&M- \& i DuPoni Engineering Earley Mill Pla:a - Blrhj. 27 Lancaster Pil.e & Fits.

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SRPT T-629-.8, T-6889.1, T-6316.4 DT15-A M S & b -lb itf 3M M E D IC A L DEPARTMENT, CORPORATE TOXICOLOGY Title: Inter-Species Comparison of Mechanisms Fluorochemical Toxicity following Intraperitoneal dosing of perfluorooctanesulfonate (PFOS, T-6295) or ammonium perfl^iorooctanoate (APFO, T-6889) in Rats and Guinea Pigs and oral dosing of N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316) in Rats.

S O HEM S AR226-2469 -o ; 8/7, DuPont Washinspim Worts P. 0.

M ia-7/g Ciba Specialty Chemicals Corporation USA Regu^tory Services S O-' RECEIVED 05 JUN n AHffl-* } 7 SANITIZED L Ciba DIIII IIIIIMilIII IIIIII 8 EHQ - O ) 5 6 June 9, 2005 ^ 9 - otfor - /*osr ederal Express Confidential US Environmental Protection Agency 1 OPPT Document Control Office Mail Code 7407M Attention: Section 8(e) Submission EPA East Building, Room 6428 Company Sanitized 1201 Constitution Avenue NW Washington, DC 20460-0001 Subject: TSCA 8 (el Notice - Cyclohexene-carboxylic acid, ffdi-propenylaminol carbonyll- sodium salt, reaction products with pentafluoroiodoethanetetrafluoroethvlene telomer, ammonium salts Dear Section 8(e) Coordinator: This letter contains Confidential Business Information (CBI).

TRADE SECRET Study Title H-24001: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2924 AR226-3203 D uPont-2924 Supplem ent N o. 1 Author: Carol Finlay, B.A.

Company Sanitized.

AR226 3345Perfluoroalkylated Substances in the Environment : gWhat are they?

P-1 ^ 3 6 . 2> 83 INTERIM REPORT # 23 - Analysis o f Sediment Sample STUDY TITLE Analysis o f Perfluorobutanesulfonste (PFBS), PeriluorohexanesuLfonate (PFHS), and Perfluorooctanesulfbnate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal liv er 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 May 2,2006 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 S i Paal,M N 55144 Phone: 651-733-6374 pro ject Protocol Number: P0001131 Exygen Study Number: P0001131 Total Pages: 110 P-2 Interim Report #23 - Analysis of Sediment Samples Exygen Study No.: P0001131 QUALITY ASSURANCE STATEMENT Exygen Research's Quality Assurance Unit reviewed Exygen Study Number P0001131, entitled, "Analysis o f Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfhiorooctanesulfonate (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".

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

3M General Offices 3M Center St.

ANALYTICAL REPORT '/k^/oy STL A/3G 3 3 7 \jC STL Denver 4 9 5 5 Yarrow Street Arvada, CO 8 0 0 0 2 Tel: 3 0 3 7 3 6 0 1 0 0 Fax: 3 0 3 4 3 1 7 1 7 1 www.stl-inc.com PFOA/PFOS Analysis Lot#: D7G270329 Laura Vancho/Jane Hanuszczyk NJ American Water 213 Carriage Lane Delran, NJ 08075 TestAmerica Denver Gail DeRuzzo Project Manager August 12,2007 DEP2-SDWB-000001 METHODS SUMMARY D7G270329 ANALYTICAL PARAMETER_________________________________________ METHOD______ LC/MS/MS, PFOA DEN -LC-0012 References: DEN Severn Trent Laboratores, Denver, Facility Standard Operating Procedure.

INTERIM REPORT # 12 - Analysis of Vegetation 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 November 6,2006 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.