AfiOX-O 45/ C O R N IN G Hazleton Sponsor. 3M S t Paul, Minnesota FINAL REPORT Study Title: 5 Daily Dose Oral Toxicity Study with T-6669 in Rats Author: Susan M.

Corporate Occupational Medicine 3M Center, Building 220-3W-05 St.

AR 2.2.6 0 6 0 6 RECEIVED n n n t UTtr <SJi> DuPont Haskell Laboratory for Toxicology and Industrial Medicine July 6,2000 Mr.

CHtl EHSR b It D I (55 IVD uy/iy `U ID: 44 N0.59 1/1 3M Specialty M aterials 3M Center SL Paul.

fy P .A 9.6 ~ 0 6 8 1 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE ____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonic add) (CAS # 2795-39-3) Rem arks: The 3M production lot number was 1-2303.

AU9M.70*t ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE_______________________________________________ Identity: Mixture containing periluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-201F. (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 1.

A R A S 6 _ 071 & ' BIODEGRADATION (OECD 301E) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

AKZS6 -0 7 7 MICROBIOS MICROTOX TOXICITY TEST TE S T SUBSTANCE__________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-787 or FC787X. (1-Octanesulfonic acid) (CAS # 2795-39-3).

v> g E H fi. 0800-373 m & ~0368 REPORT T w e n t y --e i g h t --d a y R e p e a t e d D o s e O r a l T o x i c i t y S t u d y o f S a m p l e D --1 i n R a t s ( BMR 1 4 3 C) & EPA-OTS 000811805N ooaaiiaosN c_ o orC.

fiiR 2.2.G - U S!

A P 8.Q.G IAVST RECEIVED BPPT CBtC DuPont Fluoroproducts Chestnut Run Plaza P O.

I JR-120Q3-R R E V . 3 -7 7 EJTMUSHEO 02 E .

ENCLOSURE 4 Description of the 3M Decatur Inactive Landfill Containment Structure At the 3M Decatur site, a RCRA interim remedial measures (IRM) program is currently underway to construct a containment structure for an inactive landfill.

Fraunhofer ITEM Final Report 01 G 00 0 02 [Appendix H // EXYGEN Data] 28 Day Repeated Dermal Contact Study of 3M Test Articles in Sprague-Dawley Rats Page 1 of 13 Appendix H: PFOS, PFHS and M570 Residues in Rat Blood Serum (EXYGEN Data) Fraunhofer ITEM Final Report 01 G 00 0 02 [Appendix H // EXYGEN Data] 28 Day Repeated Dermal Contact Study of 3M Test Articles in Sprague-Dawley Rats Page 2 of 13 Sex // Gr.

Larry R.