Jean B.

P-1 Taft/ T a ft S te ttin iu s & H o lliste r LLP 4 2 5 W a ln u t S tree t, S uite 1 8 0 0 '' C in c in n a ti, OH 4 5 2 0 2 -3 9 5 7 / Tel. 5 1 3 .3 8 1 .2 8 3 8 / Fax; 5 1 3 .3 8 1 .0 2 0 5 / w w w .ta ftla w .c o m C incinnati / Cleveland / C olum bus / D ayton / Indianapolis / N orthern Kentucky / Phoenix / Beijing Ro be r t A.

INTERIM REPORT # 1-Analvsis of Public Water 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 March 8, 2005 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.

3M Company St.

M A 6 - 0g l ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE______________________________________________ __ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

M AL6 - O Z ^ O ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FX-601. (1Octanesulfonic acid) (CAS # 2795-39-3).

BIODEGRADATION (BOD/COD) TEST SUBSTANCE ___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of L-4647. (1Octanesulfonic acid) (CAS # 2795-39-3).

3M Specialty Materials f January 3, 2003 3M Center St.

March 31, 2003 To: Mary F.

#. i - / 3/z Tom Cortina <cortina@alcaIde-fay.com> on 04/30/2003 11:02:02 AM Please respond to Tom Cortina <cortina@alcalde-fay.com> To: oppt.ncic@epamail.epa.gov cc: Mary Dominiak/DC/USEPA/US@EPA Subject: Submission to AR 226 April 30, 2003 SUBJECT: Submission to AR 226 Attached is an overview of the mechanics of film formation of aqueous film-forming foam (AFFF) fire fighting agents.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN TRENT STL STL Chicago 2417 Bond Slreel University Park, IL 50465 Tel: 70S 534 5200 Fax: 708 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER; 232883 Prepared For: Weston Solutions/ Inc: 1400 W e s t o n Way .

AR326-00059 Synthesis and Characterization of FC-95- 14, November 2, 1979 Conducted at: Commercial Chemicals Division and Riker Laboratories, Inc. 3M St.

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

3M Environmental Laboratory ARIU-coSH Exact Copy o f Original T ** &W\is l i n O Initial Date Method v y -2 - Determination of Perfluorooctane sulfonate (PFOS), Perfluorooctane SULFONYLAMIDE (PFOSA), AND PERFLUOROOCTANOATE (POAA) IN WATER BY LlQUIDSolid Extraction and High-Performance Liquid Chromatography/Tandem Mass Spectrometry (HPLC/MS/MS) Method Number: ETS-8-154.0 Adoption Date: & H j z i ) l x > o Q Author: Kristen J.