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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".

M **6 - Questions and Answers: Acute health hazard associated with aerosolized waterproofing products The MDCH and the Michigan poison centers have received numerous reports o f acute lung problems in people and their pets associated with exposure to leather, and tent and other waterproofing products that come in spray cans.

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

3M Study Title Inherent A erobic A q uatic B io deg radability of Fluoroaliphatic Polymeric Ester o ?

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.

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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.

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M 2.2.6 _ 0 7*75" ACUTE TO XICITY TO FISH TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203S. (1Octanesulfonic acid) (CAS # 2795-39-3).

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AR 2 6 _ 021 ACUTE TOXICITY TO FISH (BLUEGILL) TEST SUBSTANCE_______________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-600. (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 3M production lot number was not noted.

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