P-1 Aetzb-nrf > 5 ^ 5 ACUTE TOXICITY TO THE OLIGOCHAETE WORM (Lumbriculus variegatus) 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.

At2Z< '3 % 13 Studies on the Toxicological and Environmental Properties of PFBA as of July 2008 I.

Taft/ T" Taft Stettiriius S Hollister LLP 4 25 W alnut Street, Suite 1 8 0 0 /Cincinnati, O H 4 5 2 0 2-3 9 57 / Tel: 5 1 3 . 3 8 1 . ; $ g i( ) j 4 > V ^ B 3 81.0205 /w w w .taftlaw.com Cincinnati / Cleveland / Colum bus / Dayton / Indianapolis'/ Npfth^rji Kentucky / Phoenix / Beijing 09JUH16 ftHIQ: 36 Robert A.

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STLS F V F R N TRENT STL Chicago 2-117 Rond Street University Park, IL 60466 Tel: 708 534 5200 Fax; 708 534 5211 www.stl-inc.com V E R N T R E N T L A B O R A T O R IE S A N A L Y T IC A L R E PO R T JOB NUMBER: 233.2 5 P r e p a r e d 'For : W e s t o n .

ARSL&6 - ACUTE TOXICITY TO AQUATIC INVERTEBRATES (COROPHIUM VOLUTATOR) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

26-Week Capsule Toxicity Study with Perfluorooctanesulfonic Acid Potassium Salt (PFOS) in Cynomolgus Monkeys Current Summary as of May 4, 2000 The purpose of this study was to identify the earliest clinically measurable biological response from repeated daily exposure to potassium perfluorooctane sulfonate (PFOS) and to correlate this response to serum concentrations for purposes of risk assessment and medical monitoring of exposed populations.

INTERIM REPORT # 23 - Analysis of Sediment 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 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 St.

A R 1 2 C - 0 1 ^Attachments to Letter to C.

BACK TO MAIN DESIGN AND STRUCTURE OF MULTI-CITY STUDY submitted to 3M Environmental Laboratory 935 Bush Avenue St.

BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive State College, PA 16801 www.centrelab.com iP h o n e : (814) 231-8032 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water, Surface Water, Sediment, POTW Effluent, POTW Sludge and Landfill Leachate Samples Port St.

BACK TO MAIN May 3, 2001 . . .

BACK TO MAIN SOLUBILITY IN PURE WATER, METHANOL, AND ACETONE - SHAKE FLASK METHOD TEST SUBSTANCE___________________________________________ Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA, PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

M2&-0236 Attachments to Letter to C.

A/LJ.A6 - 032r I'mnivvcn Ink <&Chemicals, Inc.