Document NGk8myD09oDYwQMeK86xq3g1R

AR226-2136 Z--A7 RE. V-60 ESIMISMEDttOZ d u P o n t d e N e m o u r s S. C o m p a n y iHcmoitATCa P . O. Box 1217 P a r k e r s b u r g , W . V a . 26101 POLYM ER PRODUCTS DEPARTMENT CC: A. R. Behnke J. F. Doughty C . R . Campbell D j A. Erdman L. W. Goin T . L . Schrenk . C. E. Steiner G. H.. Stoltz P. Thistleton G. E. Washburn R. J. Zipfel J. H. Hale - Wilm. April 24, 1981 Robert I. Wevodau, Jr. Engineering Department Wilmington - L 13W26 GROUND LEVEL C-8 CONCENTRATIONS DOWNWIND OF TEFLON EXHAUST STACKS_________ _ As per our telephone conversation on 4/8/81, please determine eight--hour time--weighted average C-8 concentrations at various distances downwind of C--8 emission sources under the most detrimental weather conditions. Significant C-8 emission sources at Washington Works are as follows: - FEP BUILDING 163 Wet finishing baghouse exhaust Coagulator baghouse exhaust (These sources are approximately 53 feet apart see attached map.) TFE - BUILDING' 162 No. 2 fine powder dryer exhaust No. 3 fine powder dryer exhaust (These sources are approximately 42 feet apart -- see attached map.' FEP sources are approximately 555 feet west of TFE sources.) The data you requested are included in Table 1. Notice that for the TFE C-8 sources, 3 separate sets of conditions will exist at various times. Therefore, calculations should be made for each set of conditions. If any additional information is needed, please call me (863-4358). Attachment JGL/nsw -f. ^cracA^cuj-o Joseph G. Loschiavo There's a world of things w e're doing som ething about AJP002541 EID079396 T flW .F . T C-8 EMXSIQN SOURCES - Vg^SHINoTON WORKS Elevation Of Stack (Above Grade) Stack Diameter Air Velocity (fpn) ofQuantity Airflow (cfin) C-8 Concentration (ppm By Volume) Exhaust Air Temperature (C) PEP Wat Finishing Coagulator TEE After May shutdown No; '2 Dryer 1 No; '3 Dryer 5 5 ' 0" 40' 10" 77' 10" 77' 10" TFE -- Af ter High Solids Prod. No. 2 Dryer No. 3 Dryer TFE -- After High Solids & Higher Air Flow No. 2 Dryer No. 3 Dryer 77- io" 77' 10" 77' 10" 77' 10" 12" 1,091 2,500 0.042 28 10" 3,153 600 0.014 28 19 1/2" 2,900 6,000 3.0 84 19 1/2" 2,900 6,000 3.5 84 19 1/2" 2,900 6,000 8.5 84 19 1/2" 2,900 6,000 9.7 84 19 1/2" 3,865 8,000 6.4 84 1 9 1 / 2" 3,865 8,000 7.3 84 JGL 4/21/81 ZKZOOMV EID079397 ti$ 0'>Uet Fin`King >k VtMfjhcuM Exhouctl teu JW /K r VwV ) HP L*m*. C oM lB tR EC* ] etttiniar cH.tfr*'tAnh th,ai.tt\ v , y f e * A . r.F. V U?r \ t e \ ' \ \ *, w A \ Yc' fe. \ \ \ \\ " l F o P Jifh U ln C J\ \\ \F m m iV * * ' CeuJHC ['nter Vnr fP FmnoSSim\ Qytn *<w Sr/Dumi ' . % "*W \ " ' n u ' ^ /ter w AMT \ , ^ m BrHtUK Guai Muir -MUI Tefi.oa/ Roo* R/MNEMCNr Am Veuf Ux a uo Trm~F7s7& et'szoorv EID079398