3M General Offices March 17, 2000 3M Center 1 1 H Q - 0 3 0 0 - 0 0 3 7 3 u St.

STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Mallard Serum and Mallard Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COMPLETED ON September 06,2001 PERFORMING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.

r_e * -o ia + a *jf, j/ u & /* - M4 rhT) DuPont Haskell Laboratory q,e * f - ( - 3 9 u% for Health and Environmental Sciences Elkton Road, P.0.

3M Specialty Materials 2005M 25 PH 3* 11 3M Center St.

AR226-2223 f Mary A K a i s e r __________________ 12/04/2001 03:03 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont cc: Barbara S Larsen/AE/DuPont, Daryl P Cobranchi/AE/DuPont@DuPont Subject: Re: Mulit Media Consent Order APFO data requirements O Barbara Larsen, Daryl Cobranchi and I designed an experiment to get headspace concentrations (see your note below).

AR226-2312 Charles J Zarzecki ' 03/13/2003 03:48 PM To: Catherine A Barton/AE/DuPont cc: Subject: Fayetteville Results Cathie, I ran all 5 years ('95 - '99) for Fayetteville using the updated information.

AR226-2508 W ASHING TO N W O RKS - PER M IT W V 0001279 O CTOBER AND NOVEM BER 2001 FC -143 RESULTS (Letter, R .

'^ AR226-2567 ) INTER OFFICE ' -.... " I"ltnm~~ MEMO To; , F rom : Mr.

TRADE SECRET Study Title H-24QQ1: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2924 AR226-3156 DuPont-2924 Author: Carol Finlay, B.A.

AR226-3206 D uP on t-2931 Supplement N o. 1 TRADESECRET Study TUle H-24042: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2931 Author: Carol Finlay, B.A.

jf - f f Anthony F.

Jean B.

INTERIM REPORT # 6 - Analysis of Liver and Serum 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 April 23, 2008 PERFORMING LABORATORY MPI Research, Inc. 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244964 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: 03/23/2006 Signature Name: Richard C.

Megaphone February 2002 Volume 54, Number 2 A teamwork effort of the following: Communications Coordinator: Jeanie Severson Reporters: Judy Witt Support Services Mary Conroy, Fran Curtiss - Medical Rose Peine - SAC/SMD Mindy Bond - SMD/AD Gayle Carlin - Plant Eng.