SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244435 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 03/06/2006 Signature Name: Richard C.

Attachment to Letter to C.

BACK TO MAIN AR226-1030A030 Study Title Soil Adsorption/Desorption Study of Potassium Perfluorooctanesulfonate (PFOS) Data Requirement Based on OECD 106 Author Mark E.

BACK TO MAIN 3M Environmental Laboratory Report No.

BACK TO MAIN May 3, 2001 . . .

BACK TO MAIN Sulfonated Perfluorochemicals: Maps of Environmental Sampling Sites for Six Cities in Multi-City Study for 3M Specialty Materials prepared by Battelle Memorial Institute 505 King Ave.

aceAnalytical Field Services Division 3 BACK TO MAIN Pace Analytical Services, Inc. 1700 Elm Street, Suite 200 Minneapolis, MN 55414 Phone: 612.607.1700 Fax: 612.607.6444 3M Multi-city Food Study Project Date: December 4 - 8, 2000 Prepared by: Pace Analytical Services, Inc.

BACK TO MAIN Decomposition of Perfluorooctane Sulfonate by Combustion Processes Introduction To understand the potential degradation pathways for perfluorinated chemicals, it was necessary to model the thermodynamics of incineration processes.

BACK TO MAIN Im p in g er Studies o f V o la tility o f FC -95 and FC -143 Intoduction and Purpose: Thermospray mass spectrometry was used to quantitate a number of samples for FC-143 and FC-95.

BACK TO MAIN Biodegradation study Report The 18-Day Aerobic Biodegradation Study of Perfluorooctanesulfonyl-Based Chemistries Project Number 3M Project ID: Not Available Contract Analytical Project ID: CA097 Study Director Cleston C.

M3.6 _ 0630 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY O WASHINGTON.

A t 2 2 b - O '/ SOIL ADSORPTION - REVISED TEST SUBSTANCE_______________________________ _____________ Id e n tity : Perfluorooctanesulfonate; may also be referred to as PFOS or FC -95. (1Octanesulfonic 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) Rem arks: The test substance is a white powder.

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AR226-1418 OPPT-2003-0012: Perfluorooctanoic Acid (PFOA), Fluorinated Telomers; Request for Comment; Solicitation of Interested Parties fo r Enforceable Consent Agreement Development; and Notice of Public Meeting OPPT Docket in which EPA is identifying potential human health concerns about PFOA, requesting comments and additional information, and soliciting interested parties to participate in negotiations on enforceable consent agreements to produce additional data.