AR226-1979 S /S>/IC^<Sf^t^H<sl^ ^n^fe^^ " ftfe-ft ftn/ pa^p^f s/f^a/^ ^^//ee.^ ^/- ^ ^f}S~/fl ^}iffw^ hi^li ^T-rf- /e^e-/S ^^ ^.

AR226-1980 'Is "TO / :

AR226-2004 CCs 1.1.5.1 Pebruary 8, 1988 /ZJ^- TO; ALL TEPLOH* PERSONNEL PROM!

AR226-2072 25fct50:L

AR226-2103 Test Result, Saniple Data Range Cone'enitration Range Action Level Industrial Hygiime 1/104 12(310-4 100% Sample Dt Sample f Duration Type Employee Mania BTO: OB TEFLON toe: 113 P/8 - SHIFT MECHANIC (58MD) 212104 19405 3SO P 5/17/94 19813 3SO P 8/2884 20160 12/13/94 20672 3GO P 380 P Pers Chemical 58MD frWFC-143 58MD C.8/FC-143 58MD C-8/FG-143 58MD C-8/FC-143 '-riT-" - ^ .. - Cone UnH Percent <.03 MPB <.03 MPB 0-1 MPB 0.09 MPB 5.4% 5.4% 17.9% 16.1% 8TO: 08 LOG; 703 TEFLON FINE POWDER PACKOUT ROOM 107/84 18338 370 P OBPJ G-8/FC-143 <.08 MPB 5.4% BTO; OB LOG; 708 TEFLON PIS - FINE POWDER PACKOUT (08PJ) 1/2704 2546 375 A B/2S94 201S3 390 P 08PJ C-8/FC-143 &8/FC-I43 <03 MPB <.03 MPB 5.4% 5.4% BTO: 08 LOG: 717 TEFLON ROOF AREA-GENERAL 1/28/94 8845 380 A C.a/FC-143 <XB MPB 5.4% BTO; 08 TEFLON LOG: 731 A/S - INSIDE F.P.

TestRe&ults AR226-2125 file:///Cl/WINDOWS/TEMP/Monomets C-8 2-26-73 thiu 8-5-81 9 pagcsAtm Test Results Sample Datd Range Concentration Range Action Level Industrial Hygiene 2Q6/73 8/5/fll 100'A Sampis Dt Sample # Duration Type Employee Name Pers 8TO; LOG; 08 TEFLON 016 MONOMER ANALYZER COMPUTER ROOM 11/15/79 61388 Z 11/26/79 61390 Z 11/29/79 61391 Z Chemical Cone Unit Percent c-a 0.0006 PPM 0.0% C-8 0.0003 PPM 0.0% C-8 0.0004 PPM 0.0% BTO: LOC: 08 TEFLON 023 TRAINING FACILITY (OLD PROD C.C.) 3/3/81 S4817 Z 3/3/61 54818 ' Z 3/16/81 54819 Z 3/17/81 54820 Z 3/18/81 54821 2 3/18/81 54822 Z 3/19/81 54823 Z 3/19/81 54824 Z 3/27/81 54825 Z BTO: LOC ; 08 TEFLON 701 FINE POWDER DRYER-EAST SIDE #2 c-a C.8 C-8 C-8 C-8 08 C-8 C-8 C-8 0.0004 PPM 0.0005 PPM 0.0% 0.0002 PPM 0.0008 PPM 0.0002 PPM <0.0001 PPM 0.0% 0.0003 PPM 0.0% 0.0004 PPM 0.6% <0.0001 PPM 0.0% 0 3 t^ .

AR226-2200 Current PermiVAppllcatlon/PDF H 1823A 815D 8150 1353A Pre-ExIstlna 614A 614A 781 1953 236SA Note: For some vents the surfactant rate is less than the total parttoulate reported In Air Emissions Inventory which can Include polymer dust.

AR226-2269 STT-91-1 11.

AR226-2346 'WSi9fvasay Air Dispersion Modeling Verification Study Oct 22,2003 Objective Compare results from ambient air sampli air dispersion modeling to understand ho modeling predictions relate to measured air concentrations Verification Study Scope Air Sampling Program Analytical Methods Modeling Analysis of Results Air Sampling Locations Simultaneous coverage of all 4 major directions (N, S, E, W) Capture point of predicted maximum concentration from modeling Include co-located samplers at predic maximum Total of six locations ASH026725 EXPQ15794 ASH026726 EXP015795 Air Sampling Strategy Measure ambient air levels i 24-hour sampling duration Seven (7) sampling events scheduled ove weeks Vary day of week to capture variations in operations (none expected) and variation meteorology Record site-specific meteorological and operational data ^ Monitoring Strategy: Samples taken every 6 days f MONTH 1 QZ 345 6 8 9 10 11 12(^14 15 16 17 18^9)2021 22 23 2^5)26 27 28 29 3( MONTH 2 1234 5^)7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Monitoring Strategy: Samples taken every 6 days f On site training For internal use: potential schedule Oct/Nov S M T W Th F S -28 2931 1 678 2 3 4^^ 9 10^^12 13 14 If 16 <Ql8 19 20 21^ ^5)24 25 26 if^n^ 30 December 1 2 3 4Q)6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Total Samples (1) field blank per event (5) primary samples per event (1) duplicate sample per event* (7) samples x (7) sampling events = 49 tota * Sample location 3 is co-located with location 2 and se as a duplicate sample Equipment "Sorbent" sampling method to captur PFOA on ion-exchange media OSHA Versatile Sampling tube (OVS Captures particles and vapors Remote power source will be provide Weatherproof stations for sampling equipment OVS Tube Air flow (1 L/min) Analytical Method Validated method being used Acetone extraction followed by liquid chromatography/mass spectrometry (LC/MS) Detection limit of 0.1 ug/m3 Modeling Program Using U.S.

AR226-2447 < ^ j""?

AR226-2453 ^aboacatory Hame: CH2M_HIjjI._ X,ab Sannple ID: M6X44002 Client Sample to: WBM^-336 O&Q&HICS .

FEB. 26. 2002 9;34AM Michael Bate.

Wgs^%i:B%es ai;j%{;aa_^.ii6i.i.

Copies to: E.

FUR DU FONT USE ONLY AR226-2892 Copies Co E.