M aq.6 _ 0 7 2 7 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

M 3 2 6 _ 0X37 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) 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 Belgium 2367.

M SLSlG - 0 2 6 0 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (ACARTIA TONSA) 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).

M & a .G - O l Z 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 FC-603F. (1Octanesulfonic acid) (CAS # 2795-39-3).

ARA.G _ 0 0 5 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, may also be referred to as PFOS, FC-95, or as a component of FC-3072. (1Octanesulfonic acid) (CAS # 2795-39-3).

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Internal Correspondence cc: James Boyd - Chemolite 116-1 Eileen Pasbender - 116-1 P.

GLP10-01-02; Interim Report 18 Analysis o f PFBS, PFHS, and PFOS in W ater Samples F S IA -J u n e 2011 GLP10-01-02: Interim Report 18 - Analysis of PFBS.

3M Environmental Laboratory Final Project Report Amendment Project number: E12-0849 Project title: "Analysis of PFOS, PFHS, PFBS and PFOA in Soils from Decatur, AL in December 2012" Project Lead: Cleston Lange Amendment date: 2/13/2013 Am endm ent number: 01 This amendment modifies the following portion of the final report: 1) Correction to the title of Table 1 2) Update the title page to refer to the amended report as revision 1 3) Corrections to Table 11 and 12 based on Weston comments.

SEVERN TRENT STL STL Chicago 2 4 1 7 Bond Street University Park, IL 6 0 4 66 Tel: 70S 5 3 4 5 2 0 0 Fax; 7 0 8 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL .RE PORT JOB NUMBER: 2 3 2 0 8 b Prepared For: Weston Solutions, inc,, 1400 Weston Way Building 5-2 Wegt Chester, p a i938-i499 Pro jact : Conf idential Decatur - FC Investigation Attenti on : Jai Ko sari Date.: 1 2 / 3 / 2 0 4 Title: Project.

STL Burlington Colchester, Vermont Sample Data Summary Package SDG: 117591 STLS E V E R N TRENT November 30, 2006 Mr.

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

M22fce--toov DETERMINATION OF THE MELTING POM I7M ELTING RANGE OF PFOS WILDLIFE INTERNATIONAL LTD.

A R U G -0075 - '/ I " ) 3 FINAL MULTI-CITY STUDY FIELD REPORT FOR MOBILE ALABAMA AND PENSACOLA FLORIDA - BATTELLE DUXBURY ACTIVITIES for Project Number N100672-01 Submitted to Confidential September 29,1999 Prepared by Christopher Gagnon Battelle 397 Washington Street Duxbury,MA 02332 (781) 934-0571 000422 TABLE OF CONTENTS 1.