Internal Dose Comparison using Blood AUCINF/Dose (normalized) 600000 500000 400000 OCO/3 300000 oD < 200000 PFOS PFHxA, 6-2 FTS, and both AFFF FS Behavior is very different in Biopersistence Screen Test 100000 0 PFOS PFOA PFHxA 6-2FTS Test substance AF3FS 1 AF3FS2 US00005802

NRL RESPONSE TO 19392C4 - FIREFIGHTING FOAM INQUIRY John P.

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

'ECHA EUROPEAN CHEMICALS AGENCY Committee for Risk Assessment (RAC) Committee for Socio-economic Analysis (SEAC) Opinion on an Annex XV dossier proposing restrictions on Perfluorooctanoic acid (PFOA), its salts and PFOA-related substances ECHA/RAC/RES-0-0000006229-70-02/F ECHA/SEAC/RES-0-0000006229-70-03/F Compiled version prepared by the ECHA Secretariat of RAC's opinion (adopted 8 September 2015) and SEAC's opinion (adopted 4 December 2015) US00006178 'ECHA EUROPEAN CHEMICALS AGENCY 8 September 2015 ECHA/RAC/RES-0-0000006229-70-02/F 4 December 2015 ECHA/SEAC/RES-0-0000006229-70-03/F Opinion of the Committee for Risk Assessment And Opinion of the Committee for Socio-economic Analysis on an Annex XV dossier proposing restrictions of the manufacture, placing on the market or use of a substance within the EU Having regard to Regulation (EC) No 1907/2006 of the European Parliament and of the Council 18 December 2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (the REACH Regulation), and in particular the definition of a restriction in Article 3(31) and Title VIII thereof, the Committee for Risk Assessment (RAC) has adopted an opinion in accordance with Article 70 of the REACH Regulation and the Committee for Socio-economic Analysis has adopted an opinion in accordance with Article 71 of the REACH Regulation on the proposal for restriction of Chemical names: EC No.: CAS No.: Perfluorooctanoic acid (PFOA), its salts and PFOA-related substances 206-397-9 335-67-1 This document presents the opinions adopted by RAC and SEAC.

DEPARTMENT OF THE NAVY NAVAL RESEARCH LABORATORY 4555 OVERLOOK AVE SW WASHINGTON OC 20375-5320 IN 3900 WEFEPf TO Ser 6180/0080 20- A p r 2 0 1 0 From: Commanding Officer, Naval Research Laboratory To: Commander, Naval Sea Systems Command (Code 05P14 D.

From: To: Sent: Subject: Attachments: Fletcher, Steven G CIV NSWCCD PHIL, PA Blodgett, Wayne CIV CNIC HQ, N45 12/5/2011 3:41:25 PM RE: CNIC Environmental POC SERDP Issue ER-2128 Fluorochemicals in AFFF Contaminated Groundwater.pdf Wayne, I should also mention that the fixed AFFF systems in aircraft are not a concern as they are designed to contain any discharged foam.

A001189 US00002467 j-i/vuiipjt/u vtjj- i j//y o J DEPARTMENT OF TH E NAVY naval research laboratory 4565 OVERLOOK AVE SW WASHINGTON DC 20375-5320 Fttrt"IN R ( H T TO 3905 From: To: Commanding Officer, Naval Research Laboratory Commanding Officer, Naval Facilities Engineering Service C e n t e r (Code ESC-421 R.

Withheld in Entirety US00004896

Summary of Research and Demonstrations under SERDP & ESTCP Addressing Treatment of Soils and Groundwater Contaminated with Per- and Polyfluorinated Alkyl Substances (PFASs) and Development of Fluorine Free AFFF Treatment of Soils and Groundwater Contaminated with PFASs Treatment of soils and groundwater contaminated with PFASs is under development under both SERDP and ESTCP.

NRL RESPONSE TO 19392C4 - FIREFIGHTING FOAM INQUIRY John P.

From: To: CC: 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 4/14/2016 3:35:42 PM DON PFC Strategy - Industry Feedback ATTACHOOO.eml Mary Here is the feedback that I am getting from Industry: Ansul/Chemguard (Tyco): Phil Novae confirms that there are no products that are 100% PFOA-free.

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

GAO Review of DOD Drinking Water Contaminants (code 100947) Follow-up Questions for the Department of the Navy Note: These questions are addressed to the Department of the Navy, to answer on behalf of both the Navy and the Marine Corps.

From: To: CC: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Murtha, Veronica E CIV NAVSEA, SEA 00L Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 2/8/2017 8:50:06 PM RE: GAO 100947 - Costs and AFFF GAO 100947 - AFFF Questions Rev3.docx Veronica Attached are the questions and our proposed answers (in red) for your review.

From: To: Sent: Subject: Attachments: McGraw, Peter S CIV NAVSEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05 8/17/2011 4:48:45 PM Fw: Chemical & Material Emerging Risk Alert - AFFF Risk Alert for AFFF July 2011 final v2.pdf Does this have your changes?