(dba Exygen Research) (Exygen) from DuPont Corporation.

PVDF water and wastewater treatment membranes Public document Public consultation input provided by DuPont de Nemours, Inc to the Annex XV proposed restriction on per- and polyfluoroalkyl substances (PFAS) related to the use of PVDF in water and wastewater treatment membranes Executive Summary Water insecurity has been and will likely become an even larger challenge globally as climate continues to negatively impact humanity and our environment.

DuPont de Nemours & Company, Experimental Station (E328-B47), Wilmington, DE 19898; 11Allied Signal I nc., P.O .

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FINAL REPORT Epidemiology, 220-6W-08 `Medical Department 3M Company St.

Roger Zipfal Dupont ParkfiKaburg Dupont Road (Highway 892) Washington, West Virginia 26181 KSt analytical Data for JMQ Laboratory Reference No. 24340 Dear Mr. zipteli On March 29, 1983, the CH2M HIM.

CGCC02 Charles Auer May 25, 2000 Page 3 => 3M understands that the Agency has requested information on perfluorooctanoic acid from duPont.

i Attachment 2 A1B222-1.7788-2- 4 Air Sampling Fluorochemical Report IB DuPont Washington Works -- Air Sampling Program Round 11 r Exygen Research Report No.

DuPont de Nemours & C o ., Inc.

l 'SI* llioi'oiupuiibilily lusting ol 11-22239 (Control Item) und H-222-IO ( l est Item) DuPont Central Research ami Development Haskell Laboratory lor Toxicology and Industrial Medicine HLO-1997-00026 January 17, 1997 DuPont Non-Woven Old Hickory, Tennessee USP Biocompatibility Testing o f H-22239 (Control Item) and H-22240 (Test Item!

MMeemmoo ATTACHMENT 8............"" hMaDtHa ToDaDtaete:: To: FFrroomm:: Subject: TTeno tedr AApprriill 44,, 22000077 Tim Scherkenbach MAMisinnsninseetsasoontttaaCPPooomllllmuuttiiisoosninoCCnoeonrnttrrooll AAggeennccyy IEiLmeSr ,HDaiDDiisss John Linc Stine, Division Director, > a .John Linel Siine, Di~6sion Director ~~ Environmental Health Division / ~/ ",_.~ " Minnesota Department of Health l./ ' Hazard Determination of PFOA and PFOS er ep ep, TThhiiss mmeemmoorraanndduumm iiss iinn rreessppoonnssee ttoo yyoouurr qquueessttiioonn rreeggaarrddiinngg tthhee ppootteennttiiaall ffoorr ppeerrfllluuoorrooooccttaannee sulfonate (PFOS) and perfluorooctanoic acid (PFOA) to pose a substantial present or potential..

CGCC02 Charles Auer May 25, 2000 Page 3 => 3M understands that the Agency has requested information on perfluorooctanoic acid from duPont.

Final Response to Consultation for PFAS Fluoropolymers Used in Gas Sensors 1 Contents 0.