Document gbM7nmMYJYR0zd01pV4aQJm9J

AR226-2136 <-z-< RE? >> isamavaum E. I. DU PONT DE NEMOURS 5. COMPANY iwmawiwsva P. 0. Box 1Z17 PARKERSBURS, W. VA. 26101 POLYMER PRODUCTS DEPARTMENT CC: A. R. Behnke J. F. Doughty C. R. Campbell D,? A. Erdman L. W. Goin T. L. Schrenk April 24, 1981 C. B. Sfceiner G. H.. Sfcoltz P. Thistleton G. E. Washburn R. J. Zipfel J. H. Hale - Wilm. Robert I. Wevodau, Jr. Engineering Department Wllmington - L 13W26 GROUMD LEVEL C-8 COMCBNTRATIONS DOWHWIMD OF TEPLOM 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.' PEP sources are approximately 555 feet west of TPE sources.) The data you requested are included in Table 1. Notice that for the TPE 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 informition is needed, please call me (863-4358). Attachment Ljtf-a-yiiC- /. C^cni-fi^om-o > Joseph G. Loschiavo s Lft t^ JGL/nsw There's a world of things we're doing something about EID079396 iyay, 'Wilr ISSUE I . C-8 EMISIOH SOUK3S - TOSHIN3rON WORKS Elevation Of Stack (Above Grada) Stack Diameter FEP TOt Finishing coagulator 55' 0" 40' 10" VFB - after 'May shutdown No; 2 Dryer lto; 3 Dryer 77' 10" 77' 10" TEE - T 'After -High Solids Erod. N3.2-Dryer Ha. 3 Dryer 77' 10" 77' 10" . 13" 10" 19 1/2" 19 1/2'' 19 1/2" 19 1/2" Al-r Velocity tfpn) Quantity Of Airflow (cfin) C-8 Concentration i (ppn By Volunie) , . Exhaust Air Temperature (C) 1,091 2,500 0.042 28 , 3,183 600 0.014 28 2,900 6,000 3.0 84 2,900 6,000' 3.5 84 2,900 6.000 8.5 84 2,900 6,000 9.7 84 ' i JGL 4/21/81 pi H 0 0 -1 10 u vi -j erssooafv & EID079398