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O D USD(I& E) October 17, 2014 STUDY PLAN (DRAFT) - Addendum to Phase I Impact Assessment for PFOS/PFOA Cost-Benefit Analysis for Replacement of Legacy Aqueous Film-Forming Foam (AFFF) 1 Background and Extent of Effort The current military specification for aqueous firefighting foams (MIL-F-24385; August 1994, F Version) mandates the use o f fluorinated chemicals to enable film formation to meet the MILSpec performance requirements.1 AFFF formulations that were manufactured by 3M using an electrochemical fluorination process contained perfluorooctanoic sulfonate (PFOS). 3M voluntarily ceased production o f the fluorosurfactants used to make PFOS-based AFFF in 2002 due to rising regulatory concerns.

O D USD(I& E) October 17, 2014 STUDY PLAN (DRAFT) - Addendum to Phase I Impact Assessment for PFOS/PFOA Cost-Benefit Analysis for Replacement of Legacy Aqueous Film-Forming Foam (AFFF) 1 Background and Extent of Effort The current military specification for aqueous firefighting foams (MIL-F-24385; August 1994, F Version) mandates the use o f fluorinated chemicals to enable film formation to meet the MILSpec performance requirements.1 AFFF formulations that were manufactured by 3M using an electrochemical fluorination process contained perfluorooctanoic sulfonate (PFOS). 3M voluntarily ceased production o f the fluorosurfactants used to make PFOS-based AFFF in 2002 due to rising regulatory concerns.

AR R26 - 0757 TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE identity: A mixture containing perfiuorooctanesulfonate, which may also be referred to as PFOS, Octanesulfonic acid) FC-95, (CAS # or as a component 2795-39-3).

AR226-2436 SJSTKK.OWT.CK MEMORANDUM Date: Fro: Dept: Tel Ho: 06-Jun-1995 03:57pm KAZUAKI SUZUKI SUZUKIKK AT Al AT YOVXOO DUJL-MDF 81-543-34-2233 TO: Robert L.

International Journal of Cosmetic Science 12,273-279 (1990) Preliminary Communication Treatment of irritant contact dermatitis in workmen with perfluoropolymethylisopropyl ether (Fomblin HC) G.

THE FLUOROPOLYMERS DIVISION THE SOCIETY OF THE PLASTICS INDUSTRY, INC.

AR226-2989 Study Title Bye Irritation Tt with 8-20056 in Rabbif Author ^ohc 9.

%^J W AR226-2993 Baugy, June 17, 1993 STUDY No 920084 E OCULAR PRIMARY IRRITATION Sponsor: ELF ATOCHEM SA La Defense 10 Cedex 42 92091 PARIS LA DEFENSE FRANCE CompanySanitized.

MICROBICS MICROTOXC TOXICITY TEST TEST SUBSTANCE ldenfity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95 or as a component ofFC-201AF. (1Octanesulfonicacid)(CAS # 2795-39-3).

Enar+orunent Errarannenert Canada Canada P. 1 AR Q A v ~ 31% RISK MANAGEMENT STRATEG Y FOR NEW FLUOROTELOMER BASED SUBSTANCES PROHIBITED UNDER SECTION 84 OF CEPA 1999 1 .

- 3M ECPoLmOp0aOn)y Page 10f25 FINAL REPORT Epidemiology Medical Department 3M Company 220-3W-05 St.

a AR126-0075 a EN-13 ul FINAL MULTI-CITY STUDY i FIELD REPORT FOR MOBILE ALABAMA AND PENSACOLA FLORIDA - BATTELLE DUXBURY ACTIVITIES I a for a Project Number N100672-01 Hu Submitted to un Confidential K September 29,1999 n Prepared by u Christopher Gagnon n 1 A 397 WaBsahtitnegltloen Street Duxbury, MA 02332 (781) 934-0571 n 1 R 000422 2 | cpus 1 five] I TABLE OF CONTENTS fe LL SUEY SPECIfIc ADPIOVAL coors 1 A RESUS cco || 5:1 Sample Matrix AVAHIAbILY eevee10 I 5. 55.3 2DIODNCSStUEUVMOE4NBIA0SNEOUCNIORVMIECASYHOEUOSNN.S..S...ACcONS... cor ssneeer snsesmr osm, Ea E -- ------ } -- 1|3}| 1 LIST OF TABLES 1 TTAABBLLEE 21..

- Corporate Occupations Medicine 3pMeCanme,iBiEneg 2TM203005 AR226-0473 651733 5066 Fox 3M 5.

Pathology Associates International A Company of Science Applications International Corporation An BmptaytmOmma Company Sponsor: 3M St.