Life Cycle Waste Stream Estimates August 2000 Attached is an executive summary of a report prepared by Battelle Memorial Institute entitled "Sulfonated Perfluorochemicals: U.S.

3M Environmental Laboratory A R Z26-O O f| Final Report- Analytical Study Single-dose Dermal Absorption/Toxicity Study of T-6049 in Rabbits In-Vivo Study Reference Number: HWI#6329-130 Study Number: AMDT-020895.1 Test Substance: FC-95 (T-6049) Name and Address of Sponsor: 3M SCD Division 367 Grove Street St.

/1R126-OK8 ATTACHMENT TO LETTER TO C.

3M General Offices >p 3M March 17, 2000 3M Center St.

0730 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (COROPHIUM VOLUTATOR) 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).

Aa a - Il yo DuPont Engineering Barley Mill Plaza Bldg. 27 Lancaster Pike & Rte.

A k JLXG _ U 3 > 0 ASAHI GLASS CO., LTD March 19, 2003 WEUM12P.sSa0A.s0.MhEEPinanaergvsnyttino,rDosnMyno,lmamDviaClmenCni2itaoaa0kdl4Ae6Pv70re0on4tue5ceMt,iNonWAgency fl i l ,, , - f .

Toxicological Summary AR226-1746 PFOS Dietary Acute Northern Bobwhite Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

3M CMrai Office 3M Canter S t Paul, MN 55144-1000 6127331110 April 3,2002 Document Processing Center (7407M) EPA E ast-R oom 6428 Attn: Section 8(e) Office o f Pollution Prevention and Toxics US EPA 1200 Pennsylvania Ave., NW Washington, DC 20460-0001 TSCA 8(E) SUBSTANTIAL RISK SUPPLEMENTAL INFORMATION: Ammonium Ferfluorooctancate CAS#: 3825-26-1 Dear Sir.

C O V /H H > THE DEVELOPMENT SERVICES COMPANY Sponsor: 3M St.

905 Sheehy Drive, fiUg.

PROCESS SAFETY AND LOSS PREVENTION AUDIT Page 30 | Mechanical Integrity ] CRITICAL INSTRUMENT SYSTEMS REFERENCES: Minimum Requirements, LPP 15.4.

NUTTER, McCLENNEN & FISH ONE INTERNATIONAL PLACE BOSTON.

NUTTER, McCLENNEN & FISH ONE INTERNATIONAL PLACE BOSTON, MASSACHUSETTS 02110-2699 TELEPHONE: 617 439-2000 FACSIMILE: 617 973-9748 December 9, 1991 18371-1 f'-/l-- DIRECT DIAL NUMBER (617) 439-2460 Mary Sundt, Esq.

'bo NUTTER, McCLENNEN & FISH ONE INTERNATIONAL PLACE BOSTON, MASSACHUSETTS 02U0-2699 TELEPHONE: 617 439-2000 FACSIMILE: 617 973-9748 Uw\!