7 AR226-2028 ji*3g^^^i$g65#4i62.>*.v3vV^RS F C-8 SAMPLING PROJECT PAGE 1 OF 41 SUMMARY OF SPECIAL C-8 SAMPLING PROJECT Jennifer Nichols Environmental Lab LSE 9-16-97 ) zmzm\ BID093252 E ID 093252 C-8 SAMPLING PROJECT PAGE 2 OF 41 TABLE OP CONTENTS PAGE TITLE PAGE................. 1 TABLE OF CONTENTS.................................. 2 INTRODUCTION ........................................ 3 SUMMARY OF AIR MONITORING ............................ 4 SUMMARY OF WIPE SAMPLING ............................. 5 ATTACHMENT 1: AIR SAMPLING RESULTS.................. . 6 SUMMARY OF AIR SAMPLING PATHSFORWARD.................. 24 ATTACHMENT 2: INVESTIGATION OF HVAC UNITS............ 26 ATTACHMENT 3: SURFACE WIPE SAMPLING RESULTS.......... 30 WIPE SAMPLING CONCLUSlONS/PATHSFORWARD....... 36 FIGURE 1: ROOF HVAC SAMPLING LOCATIONS (AIR) ........... 37 FIGURE 2: ROOF SAMPLING LOCATIONS (WIPE) ............. 38 FIGURE 3: PERCENT RECOVERY OF WIPE SAMPLES .... 39 FIGURE 4: AVERAGE VALUES AT ROOF LOCATIONS........... 40 REFERENCES.......................... 41 EID093253 E ID 093253 C-8 SAMPLING PROJECT PAGE 3 OF 41 In response io the Summary of 1995 C-8 Blood Testing (Playtls, 1995) results, and subsequent 1996 Industrial Hygiene Follow-up Report (Playtls, 1996), an extensive sampling campaign for C-8 In air and on surfaces (wipe testing) was conducted In Teflon* areas.

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Fluoropolymers Monitoring Technical Group September 18, 2003 AR226-2338 ASH026929 ro coo CD o to oCD Agenda Program Overview - EPA Suggested Priority Change Discussion Landfills Soil Sampling Biota Sampling ASH026930 tHOo 00 o tMo o Possible Sources of Exposure ASH026931 HHN) a> No> APFO M anufacture Fluoropolymer Summary Processing * Articles of Commerce *- APFO Manufacture 99% Reduction in emissions as compared to prior manufacture Air dispersion modeling Water monitoring - Prior Manufacturer - New technology baseline Program Plant Design LOI LOI/other LOI TimmsrT * t * * In place Complete Ongoing Ongoing ASH026933 Ni HU) -CJO oHUOJ >99% E m issions Rduction APFO M anufacture A ir Dispersion M odeling Water Monitoring Fluoropolymer Summary Processing Articles of Commerce LOI ECA Non-Fluoropolymer Products Program Timing Commitment to not sell APFO outside fluoropolymer industry LOI Ongoing ASH026935 N>H01 CO o (J1 Eoi jOo (-* 01 ASH026936 >99% Emissions Reduction Air Dispersion M odeling Water Monitoring Fluoropolymer Summary Processing F luoropolym er M anufacture Dry R esin P r o c essin g Aqueous R esin P r o c essin g Articles of Commerce LOI ECA ^' IS> X Fluoropolymer Manufacture Program Timing Global Material Balance pre-LOI Complete 50% Emissions Reduction pre-LOI 2006 Commitment 2002 Status - 48% reduction from the baseline Monitoring/Modeling Commitments - Air dispersion modeling LOI 12/31/03 ASH026937 - Groundwater LOI/other Ongoing - Soil Other (Today) MCO COD H-J CO - Landfill Other (Today) >99% Emissions Reduction APFO M anufacture Air Dispersion Modeling Water Monitoring LOI ECA Fluoropolymer Summary F lu o olym er] cts Processing/Articles o f Commerce Program Timing Articles of commerce testing - "New" Articles of Commerce - "Aged" Articles of Commerce Dispersion processors material balance Incineration testing LOI ECA LOI ECA 12/31/03 2004 12/31/03 6/30/04 >99% Emissions Reduction APFO M anufacture Air Dispersion M odeling Water Monitoring LOI EGA Fluoropolymer Summary >50% Emissions Reduction Fluoropolym er M anufacture Air Dispersion Modeling Water Sampling/ Monitoring --------- ----------------------- Articles o f Commerce Testing Dispersion Processors Material Balance Aged Articles o f Commerce Testing Incineration Testing EPA Proposal Delay "Articles of Commerce" testing and goal date and accelerate "Air dispersion modeling" at Fluoropolymer manufacturing sites in order to expedite the process to determine if additional monitoring (and ECA) is needed at these facilities.

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AR226-2789 FOR DU PONT USE ONLY E.

AR226-2791 FOR DUPONT USE ONLY Approximate Lethal Concentration of i l H H B ^ H n B f i 9 9 E 9 n i n Rats Haskell Laboratory Report No. 276-85 E.

AR226-2930 FOR DU PONT USE ONLY HLR 415-85 HASKELL LABORATORY REPORT NO. 415-85 Title of Report STATIC ACUTE 96-H0U.

Study Sponsor: Issue Date: Document Reference No.: ATOCHEM 2-Nov-87 98797 AR226-2933 Acute Toxicity to Daphnia Magna Author(s): A.M.

AR226-3204 DuPont-2925 Supplement No. 1 TRADE SECRET Study Title H-24000: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2925 Author: Carol Finlay, B.A.

I CEN TRAAL 1N ST1T U U T V O O R V O ED IN G SO N D ER Z O EK U trech tsew eg 48 Z e ist CENTRAL INSTITUTE FOR NUTRITION AND FOOD RESEARCH AR226-3331 REPORT NO .

AR226-3376 HASKELL LABORATORY Common Name: Ammonium Perfhiorooctanoate (C-8) Chemical Name: Octanoic add, pentadecafluoro-, ammonium salt CAS Registry No.: 3825-26-1 Chemical Structure: Physical Properties: OI cc f 3 - c f 2- c f2- c f2- c f2- c f2- c f 2 - - o -+n h 4 Form: Molecular W dght: Boiling Point: Melting Point: Density: White powder 431 Sublimes @ 110C -- -- Drinking Water Guideline (CEGW) 1 ug/L General Toxicity Ammonium perfluorooctanoate (C-8) has moderate acute oral toxicity with an LD50 in rats of 470 mg/kg 981b).

AR226-3388 Evaluation of the Subchronic Toxicity and One-Generation Reproductive Effects of a Fluoroalkylethyl Urethane Polymer G.T.

3M ENVIRONMENTAL LABORATORY REPORT NO.