._.q ,I ] ', i i "1 ,I _ ' i::_] '"_"_I D 'i BIODEGRADATION STUDY REPORT Revision 1 Wednesday, November 06, 2002 Biodegradation Screen Study for Telomer-Type Alcohols PROJECT NUMBER 3M Projects ID: E01-0684 Pace Contract Analytical Projects ID: CA085 STUDY DIRECTOR Cleston C.

T-6295.28 Final Report T-6295.28: Anal sis of Liver Enz mes Gl co en and Perfluorooctane Sulfonate (PFOS) Concentration in Samples from T-6295.25: One-Generation Reproduction Study of PFOS - Mevalonic Acid/Cholesterol challenge and NOEL Investigation in Rats.

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AR226-2035 ^ "Roge J.

TestResults AR226-2117 file:///C|WINDOWS/TEMP/C-8"FC143 ^er 1-.1-70 thiu 8-9-Ol.hton ^ ila 1 of 99 Test Results Sample Date Range Concentration Range Action Level Industrial Hygiene 1/1/70 8/9/01 100% Sample Dt Sample # Duration Type Employee Name Pers BTO: LOC : 08 TEFLON 100 P/S - MONOMER OPERATOR CONTROL ROOM (08PA/PB/PC) 5/10/99 33692 360 P BARROW, THOMAS L 08PH Chemical Cone Unit Percent C-8/FC-143 <0.01 MPB 1.8% BTO: 08 TEFLON LOC: 101 P/S-TFE FIELD OPERATOR (08PA) 1/30/98 27147 360 P LEWIS.

AR226-2213 Current Permit/Application/PDF # 1823A 815D 8)5D 1353A Pre-ExIstIng 614A 614A 781 1953 2365A Note: For some vents the surfactant rate Is less than the total particulate reported In Air Emissions Inventory which can Include polymer dust, Note: tf emissions are sent to T61ZCE then emissions from T61FCE are reduced.

AR226-2287 ^ Hobert L Ritchey ' 05/23/200211:24 AM To: cc: Subject M.

AR226-2300 ^y Charles J Zarzecki 02/21/2003 12:30 PM To: cc: Subject: Catherine A Barton/AE/DuPont Actual 2002 Results Cathy, The maximum annual prediction for actual 2002 emissions is 1.36 ug/m3, occurring at the plant property line.

AR226-2306 y Charles J Zarzeckj 03/03/2003 01:1S PM To: cc: Subject: Catherine A Barton/AE/DuPont Re: C8 meeting D Cathy, Yes, they can be done. however, not until Wednesday as I am on my way out the door to Front Royal.

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FOR DU FONT USE ONLY AR226-2944 Du Pont HLR 444-89 Study Title ___ Static Acute 96-Hour LCSOo1 Fathead Minnows (Pimephales promelas] Author David G.

r^:'-'-'''-la',s^-f~--rs'- AR226-3015 Study Title Approximate Lethal Dose (ALD) of H-21095 in Rats Laboratory Project ID Haskell Laboratory Report Mo. 290-95 Author M.