GAO Review of DOD Drinking Water Contaminants (100947) Follow-up Questions on AFFF Products In our prior conversations with Navy officials, we have been told that DOD's AFFF MILSPEC calls for AFFF products to contain PFCs.

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

From: To: Sent: Subject: Attachments: Berkoski, Daniel T CIV NAVSEA, SEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05 6/14/2016 3:03:00 PM RE: Recommended final set of PFC/PFAS FAQs 16-06-10.

From: To: CC: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Willey, Janice L CIV SEA04X, LQAO; Adelson, Jordan M CIV SEA04X, LQAO Corl III, William E CIV Chemist, LQAO, C1198; Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 1/17/2017 2:46:38 PM Ausrailian Lab Proficiency Report NMI Proficiency report 2016 - PFOS & PFOA lab sampling-AQA16-06.pdf Jordan/Janice - Sending for info, you may already have it.

From: To: Sent: Subject: Attachments: Mach, Richard CIV OASN (EI&E), ODASN (Environment) Adelson, Jordan M CIV SEA04X, LQAO; Barclift, David J CIV NAVFAC LANT, EV; Berkoski, Daniel T CIV NAVSEA, SEA 05; Blodgett, Wayne CIV NAVFAC HQ, EV; Brant, Byron C CIV NAVFAC LANT, EV; Brown, Kim P CIV NAVFAC HQ, EV; Carlson, Margaret M CIV OASN (EI&E), OAGC (EI&E); Coghlan, Gunarti H CIV NAVFAC HQ, ENV; Corack, Jennifer M CIV NAVFAC Atlantic, EV; Derrick, Amy E CAPT CHINFO, DCI; Duchnak, Laura S CIV NAVFAC HQ, BRAC PMO; Dumenigo, Mario O CIV NAVFAC HQ, EV; Frederickson, Joshua M CIV OPNAV, N45; Gamache, Christopher D CIV l&L, GF; Greek, Patricia Z CIV CNIC, N452; Hayes, Dan E CIV NAVFAC HQ, EV; Heilman, David H CIV NAVFAC HQ, BRAC PMO; Holmes, Wanda L CIV OPNAV, N45; Hunstad, Mary P CIV NAVSEA HQ, SEA 05; Jaime Vega (jaime.vega2.mil@mail.mil); Laitila, Jeffrey P CIV NAVFAC MIDLANT, EV; Lansdale, Lawrence L CIV NAVFAC HQ, BRAC PMO; Nashold, Elizabeth A CIV NAVFAC MIDLANT, EV BLC; Nehm, Lindsay R CIV OPNAV, N45; Onyekanne, Chika LT CHINFO, 01-2; Porter, Christine H CIV CNIC HQ, N45; Preston, Gregory C CIV NAVFAC HQ, BRAC PMO; Puckett, Thomas G CIV CNIC HQ, OGC; Reisch, Timothy A CIV NAVFAC LANT, EV; Rosen, Marc S CDR OLA, LA-63; Rudroff, Jim CIV OASN (EI&E), ODASN Environment; Runyon, Rex A CIV PA; Sadorra, Robert A CIV NAVFAC HQ, EV; Schirmer, Robert G CIV NAVFAC MIDLANT, EV; Taplin, Aundrea E CIV OASN (EI&E), OAGC EI&E; Turner, Misha GS13 l&L, LFL; Walker, Yvonne P.

DEPARTMENT Oc TUE NAVY NAVAL SURFACE WARFARE CENTER CARDEROCK DIVISION NAVAL SHIP SYSTEMS ENGINEERING STATION 5001 S.

From: To: CC: Sent: Subject: Attachments: Mach, Richard CIV OASN (EI&E), ODASN (Environment) Hunstad, Mary P CIV NAVSEA HQ, SEA 05 John P.

From: To: CC: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Mach, Richard CIV OASN (EI&E), ODASN (Environment); Rudroff, Jim CIV OASN (EI&E), ODASN Environment Adelson, Jordan M CIV SEA04X, LQAO; Willey, Janice L CIV SEA04X, LQAO; Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 1/18/2017 3:35:22 PM FW: EU PFOA Regulations D04761201-en-2.pdf; REACH PFOA Decision Dec'16.pdf Richard/Jim - Forwarding.

Fluorotelomer and ECF Products : Different Chemistry Fluorotelomers (Telomerization) CF2=CF2 I (TFE) F(CF2)nl Perfluoroalkyl Iodide n = 6,8,10,12, even F(CF2)nCH2CH2l Fluorotelomer Iodide ----- F (C F 2) nC H 2C H 2S 0 3X : F T S u lfo n a te AFFF Surfactant Products F(CF2)nCH2CH2OH | Fluorotelomer Alcohol ECF (Electrochemical Fluorination) H(CH2)nSH 'r F(CF2)nS 0 2F F(CF2)nS 0 3X PFOS n = 8; PFHXS n = 6 ' r PFBS n = 4 F(CF2)nS 0 2N(R)CH2CH20H Perfluoroalkyl sulfonamido ethanol ir Sales Products Sales Products Even number, straight chains, No Branching Polymers n> 8 ; Surfactants n=6 primarily ECF produced materials have up to 30% branched isomers at the fluorinated chain end and contain odd and even carbon chain lengths US00005803

From: To: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Slater, James G CIV NAVSEA, SEA 00D; O'Connor, Rory CIV NAVSEA, SEA 00D 6/15/2016 8:17:40 PM FW: Final, DASN (E) approved, FAQs related to PFC/PFAS 16-06-15, DON FAQs for PFC-PFAS Final.docx v/r Mary Hunstad TWH - Fire Protection Systems And Material Fire Performance SEA 05P5 WNYD bldg. 197, 3W-2827 202-781-3632 ......Original Message......

From: To: CC: Sent: Subject: Attachments: Fletcher, Steven G CIV NAVSEA HQ, SEA 05 Berkoski, Daniel T CIV NAVSEA, SEA 05 Hunstad, Mary P CIV NAVSEA HQ, SEA 05 12/15/2016 5:59:10 PM RE: GAO 100947 FOLLOW-UP DRINKING WATER GAO 100947 FOLLOW-UP QUESTIONS rev4.docx See attachment for additional edits. v/r, Steve Fletcher, P.E.

National Measurement Institute Proficiency Test Report AQA 16-06 PFOS/PFOA IN FISH, SOIL AND WATER o US00007143 US00007144 ACKNOWLEDGMENTS This study was conducted by the National Measurement Institute (NMI).

STForeo:nmt:: AStutbajcehcmt:ents: Tom Cortina <cortinaec@comcast.net> Fletcher, Steven G CIV NAVSEA HQ, SEA 05 <steven.g.fletcher@navy.mil> 4/13/2016 5:30:00 PM [Non-DoD Source] Re: PFOA Chemicals 2015-00636.pdf; Pages from rest_pfoa_compiled_opinions_en[1].pdf Steve, Attached is an excerpt from the European proposal.

GAO Review of DOD Drinking Water Contaminants (100947) Follow-up Questions on AFFF Products In our prior conversations with Navy officials, we have been told that DOD's AFFF MILSPEC calls for AFFF products to contain PFCs.

Sent: Ce: Attachments: Signed By: Tuesday, April 05, 2016 12:49 PM Berkoski, Daniel T CIV NAVSEA, SEA 05 20150403_105758.jpg; 20150403_105815.jpg steven.g.fletcher@navy.mil Jim, Here are the pictures of the PFOS AFFF (3M) that I found on a ship last year, v/r, Steve Fletcher, P.E.