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.

Emerging Contaminants Governance Council (ECGC) 16 December 2015 Meeting Recommendations Endorsed 1.

From: To: Sent: Subject: Attachments: Murtha, Veronica E CIV NAVSEA, SEAOOL Fletcher, Steven G CIV NAVSEA HQ, SEA 05 11/28/2016 7:44:30 PM AFFF 16-10-28 PFAS Vendor Notification Letter Fomtec Rev2.docx AFFF 16-10-28 PFAS Vendor Notification Letter Fomtec Rev2.docx smime.p7m Steve, Apart from one comma out of place, you letter is fine.

From: To: Sent: Subject: Attachments: Fletcher, Steven G CIV NAVSEA HQ, SEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05 (mary.hunstad@navy.mil); Berkoski, Daniel T CIV NAVSEA, SEA 05 11/1/2016 10:38:50 AM OUSD PFOA Memo 2008 AFFF PFOA DoD l&E memo.pdf v/r, Steve Fletcher, P.E.

From: To: Sent: Subject: Attachments: Fletcher, Steven G CIV NAVSEA HQ, SEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 2/8/2017 7:33:05 PM RE: Updated GAO Answers GAO 100947 - AFFF Questions Rev2 sgf.docx I personally would push to keep in the paragraph explaining hi-x foam.

TCForCo::m: SSeunbtje: ct: Attachments: Berkoski, Daniel T CIV NAVSEA, SEA 05 John P.

ANSUL ANSUL INCORPORATED MARINETTE.

DEPARTMENT OF THE NAVY naval resea rch laboratory 4555 OVERLOOK AVE SW W ASHINGTO N DC 20375-5320 in reply re fe r t o : 3900 Ser 6180/0018 FTroo:m: CCoommmmaannddeirn,gNOafvfaicleSre, aNSavyastleRmesseCaormchmLaanbdor(SatEoAry05P5 S.

From: To: Sent: Subject: Fletcher, Steven G CIV NAVSEA HQ, SEA 05 Berkoski, Daniel T CIV NAVSEA, SEA 05; Hunstad, Mary P CIV NAVSEA HQ, SEA 05 7/19/2016 6:45:10 PM RE: DoD Merit meeting notes Very interesting... ......Original Message......

ASSTCForetuCto:nba:mtjce:h:cmt:ents: John P.

Withheld in Entirety US00004561

From: To: CC: Sent: Subject: Attachments: Buckley, KellyAnn - IS Fletcher, Steven G CIV NSWCCD PHIL, PA Fournier, Elaine - IS; Butler, Ruth - IS 10/18/2013 10:43:04 PM RE: MilSpec AFFF - MIL-F-24385 RE: MilSpec AFFF - MIL-F-24385 This e-mail and any files transmitted with it may be proprietary and are intended solely for the use of the individual or entity to whom they are addressed.

From: To: CC: Sent: Subject: Attachments: John P.

MIL-F-23905B(AS) 25 April 1967 Superseding MIL-F-23905A(WP ) 26 March 1965 MILITARY SPECIFICATION FIRE EXTINGUISHING AGENT, "LIGHT WATER" LIQUID CONCENTRATE, (6 PERCENT) This specification has been approved by the Naval Air Systems Command, Department of the Navy 1.