CC: ERD Division Directors R.

FT,-143 Comparison Results W a s h in g to n W o rk s Q u a rte rly f 'f l ru m p lin g 1Q01 <.irnp Irl GAl IFRV RANNf Y w rsT w Eu rie tD # i GALLERY RANNtY w est w F iirin n n BV ANK IC S LCSD MS MSD notes RPR PFNA - relative percent recovery (%) for the surrogate standard perfhjorononanoic acid which is spiked m'o each sample and associated quality control sample during sample preparation for analysts LCS'LCSD * laboratory conimi sptkr/laboratory control spike duplicate rna'rt sptke/malmr spiknduplicate NA - samnle noi included tn bah h analysis r,r rrn (histon*. r-n (' ) units ug/l 399 ug/l 548 ug/L 1 58 RPR PFNA RPR PFNA RPR PFNA RPR PFNA RPR PFNA RPR PFNA RPR PFNA RPR PFNA 18 16 18 12 9 NA 16 19 oc fprnpospd TOP) 183 309 4 15 97 101 80 110 96 91 NA NA CO u lJ C O U) 00Q005 prepared for John Bowman on 5/17/01

-^ 226-/607 From Barnard J *% 0 tQOOfcOOl 08:19 AM To rwily_bemfeOhemwl.oom cc rmratHy Q 6H > r*c nat aaipaCtthafoliogroup com. ]matzvHrningtontrutcorn Subject Oct 20 Hi Bern, Foggy beginning of the day here, but pretty good weather predicted, mom and I going to Lancashire later today for dinner, Joe's folks coming down, I am sure we can find some project to chip away at. certain I need to shorten the hot water line to the sink and midbath, could be easy or a bitch depending on luck.

3M ENVIRONMENTAL LABORATORY REPORT NO.

INTERIM REPORT # 10 - Analysis of Fish and Clam Samples STUDY TITLE Analysis of Perflnorobutanesulfonata (PFBS), Perfluorohexanesulfonate (PFHS), and Perflnorooctanesulfonate (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 09, 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.

3M Environmental Laboratory R126-0005 M ethod A nalysis of Potassium Perfluorooctanesulfonate or O ther Fluorochemicals in Serum Extracts U sing H PLC-Electrospray/M ass Spectrometry Method Number: ETS-8-5.1 Author: Lisa Clemen, Robert Wynne Approved By: 'L l Laboratory Manager Adoption Date: 03/01/99 Revision Date: <V / 2 C / Date Group Leader Technical Reviewer Date dh i / m Date 1.0 S c o p e a n d A p p l ic a t io n __________________________________________________________________ 1.1 Scope: This method describes the analysis of serum extracts for fluorochemical surfactants using HPLC-electrospray/mass spectrometry. 1.2 Applicable Compounds: Fluorochemical surfactants or other fluorinated compounds, or other ionizable compounds. 1.3 Matrices: Rabbit, rat, bovine, monkey, and human serum, or other fluids as designated in the validation report.

AKKi - o a Q '1 XToxicity to Algae (Selenastrum capricornutumj'tqr PM-3820 (28% PFOS) EnviroSystems of Resource Analysts, Inc.)

CLIENT PRIVATE AF26-OI6I fk -- PROTOCOL TITLE: Range finding Cytotoxicity Assay of T-6292, T-6293, T-6294, T-6295 in R at Hepatocytes SRI Study No.

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3M Environmental Laboratory WX&OX7S Final Report- Analytical Study Single-Dose Dermal Absorption/Toxicity Study of T-6051 and T-6054 in Rabbits In-Vivo Study Reference Number: HWI#6329-133 Study Number: AMDT-013195.1 Test Substance: FC-129 (T-6051 and T-6054) Name and Address of Sponsor: 3M SCD Division 367 Grove Street St.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: AR03G-O3I3 Primary Skin Irritation Test with T-3494 in Albino Rabbits 0884EB001 2 Safety Evaluation Laboratory Riker Laboratories, Inc.

MULTI-CITY STUDY FINAL FIELD REPORT FOR COLUMBUS GEORGIA AND PORT ST.

BACK TO MAIN Study Title Growth and Reproduction Toxicity Teat with N2803-2 and the rreshwater Alga, S1tnaetrua caprlcornutua Data Requirement) Guideline Number U.s.

BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive ^ Phone: (814) 231-8032 State College, PA 16801 www.centrelab.com Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Decatur, Alabama (W1979) Centre Analytical Laboratory Report No. 023-007B (Revision 1) Revision Date 3/20/01 Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

BACK TO MAIN 3M Environmental Laboratory Biodegradation Studies Executive Summary of Biodegradation Studies 3M has completed a series of studies of the biodegradability of various fluorochemical materials based on EPA Guidelines OPPTS 835.3200, OPPTS 835.3210 and/or OPPTS 835.5045.