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CorrpoorsrateOOcccaupations Medias 25M1CC7eo3nte4r2,3bB0uidiTngetgho2n0e-305 1733 068 Fax AR226-0473 3M 5a.t PChoytstiacgieanGrPolvanet(S19u7m8m-a19r9y1)Reports Regarding Medical Surveillance Program Following reports of the finding of organic fluorine in sera samples, a fluorocheical medical surveillance program began at 3M manufacturing facilities in the mid 1970s "The surveillance program has generally consisted of annual or biannual tests ofclinical chemistries, pulmonary function, blood counts and abiomoritoroffluorochemical + exposure.

AR226-0535 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (E.G..DAPHNIA) TEST SUBSTANCE Identity: aPlesrfolbuoeroroecfteyrlrseudltfoonaasteF,ludoirdoeaclkyylldiammemtohnyliaummmodneriiuvmatisvalet.; may [1- D1,e1c,a2m2i,n3,i3u4m,,4,N5-,d5e,c6y,l6-,N7,,N7,-8d,i8me8t-hhyelp-t,adsealctafwlituhoro-1- octanesulfonic acid (1:1), CAS # 251099-16-8] LR-e1m4a3r9k4s:referTrehdet3o Mbyprtohdeutcetsitolnablootrantuomrbyears was Lot P3025. 1.

ARR26 _ 0L63 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TESTSUBSTA0N 000C 0000E 00 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-85, or as a component of FC-803F. (1Octanesulfonic acid) (CAS # 2795-393).

AR 226 -- 0873 ACUTE TOXICITY TO FISH (MUMMICHOG) IEsTsuBsTANCE 000000 Identity: ArefmeirxrteudrteocaosntPaiFnOiSng, pFeCr-f9l5u,oroorocatsanaescuolmfponoanteen,twohficFhC-m7a8y0Ba.lso(1b-e Octanesulfonic acid) (CAS # 2795-39-3).

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RECEIVED - OPPT NCIC aKAY 12 85 9: 10 FINAL REPORT PROTOCOL 418-028 ORAL (GAVAGE) COMBINED REPEATED DOSE TOXICITY STUDY OF T-7706 `WITH THE REPRODUCTION/DEVELOPMENTAL TOXICITY SCREENING TEST SPONSOR'S STUDY NUMBER: T-7706.1 FINALREPORTDATE:31 JULY2003 PROTOCOL 418-028- TOORXAILCI(TGYAVSATGUED)YCOOFMTB-I7N70E6DWRIETPHETAHTEED DOSE SRCERPEREONDIUNCGTITEOSNT/DEVELOPMENTAL TOXICITY SPONSOR'S STUDY NUMBER: T-7706.1 TABLE OF CONTENTS SUBJECT PAGE 1.

ORIGmi DOCS NOT CONTAIN CBI July 20, 2010 Via Federal Express pf'p I0 JL2 OE W - h h DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

MEMORANDUM FOR SEE DISTRIBUTION SUBJECT: Request Information on Usage of Perfluorooctly Sulfonates Containing Materials We would like you to provide information on the impact to the Department of Defense of the U.S.

Withheld in Entirety US00004826

From: To: CC: Sent: Subject: Fletcher, Steven G CIV NSWCCD PHIL, PA 'John P.

Perfluorochemicals (PFCs) are a class of man-made chemicals.

3M 3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-06-E-03 St.