Precise Research.

INTERIM REPORT # 8 - 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 07/13/06 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.

BIODEGRADATION A R22-0057 FT--3 TEST SUBSTANCE_______________________________________________ Identity: Periluorooctanesulfonate; 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) Rem arks field: The test substance is a white powder of uncharacterized purity.

f\RM >-o\G\ SUMMARY OF THE EFFECTS OF PFC's ON MITOCHONDRIAL BIOENERGETICS IN VITRO The attached diagram describes the metabolic relationship for the various PFC's that were selected for inclusion in this study.

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A&ZZb-f 7S W ild li fe International, Ltd.______________ __ _________Project Number 454A-108 - 1- PFOS: AN EARLY LIFE-STAGE TOXICITY TEST WITH THE FATHEAD MINNOW (.Pimephales promelas) ADDENDUM WILDLIFE INTERNATIONAL, LTD.

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AR226-2042 WASHINGTON WORKS C-8 INDUSTRIAL HYGIENE A.

Undated Documents AR226-2087 Air Samples R e s u lt P o s t i o n ....... ........... ......... 1 S a m p le # T C P 2 3 1 ) P ayro ll # (T M O 045) TC P 603 F E P O v e n C o n tro l R o o m , P osition 1 (T C P 231) F p & 0 A u to clave C ontrol R oom In take F P F ln lsh ln a D iv e r O p erato r rrrF i0 2 ra 8 P i) IT M O 0 4 5 ) 4872 ftra n n in r Pn lvketile C ontrol R oom ftra n u in r Polvkettle C ontrol R oom ((TTMTFOO0e4O5)) O TF060) fT C P 231> (T M O 045) W a x R o o m H V A C In ta k e B e a d O v e n R o o m ______________ _______ F P fc n 'A iiW tlA V A C o n tro f R o o m In ta k e " (T M O 045) TC P 603 (TM 45) (T M O 045) TC P 603 F P R n ish ln o (D rver) C o n tro l R o o m (T T F 0 3 1 ) ~ TTMD45J" frT F 028t 1 F P & D A u to clave co n tro l R o o m In ta k e F F P PnlvkettlB C o n tro l R o o m , P o sitio n 1 F E P E xtru d er C ontrol R o o m B 1 6 2 2n d L evel O u tsid e S m oking A re a (T M 045) "(T C P 2 1 5 > (T C P 268) (T M O 045) (T M O 048) (T T F 0 2 8 ) ' (T T F 028) (T T F 0 2 8 ) (T T F 028) M o n o m e r C ontrol R o o m H V A C In take # 3 S la b D rn o W h ile In U s e (T M O 045) IT C P 2 3 7 ) (T T F 0 2 8 ) (T T F 028) (TM O 04B ) F P F in iah in a /D iv e rt C o n tro l R o o m B 1R 2 2n d Level O u tsid e S m o kin g A re a F P & D A u to clave C on tro l R o o m in ta k e F F P Pnlykp.ttle C o n tro l R o o m .

AR226-2094 \ ....... ............... . * Test Results Industrial Hygiene Sample Date Range 1/1/90 12*31/90 Concentration Range Action Level 100% ...i---- i mi iirruir ~~ ........ - ..........

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AR226-2274 JOHN BENEDICT - C8 update from air quality Page 1 From : To: D ate: S ubject: Jesse Hanshaw DEE ANN STAATS 4/16/02 5:10PM C8 update from air quality Hi Dee Ann, W e are currently in the process of coordinating our modeling efforts with DuPont.

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