Document reY13LeXyRBV80e6p9jGEM2X7

AR226-2325 ^ John W MilroyJH 04/03/2003 05:41 PM To: cc: Subject: Catherine A Barton/AE/DuPont@DuPont Stephen R Hastlngs/DDE/DuPont@DuPont, Ann K Masse/HO/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@DuPont Re: Data for air dispersion modeling Q This is the data for DuPont Dow, building 1163, C8 release to the amosphere. The data is based on a typical 96 hour campaign. In that campaign C8 would be released over a ten hour drying cycle, with the drying cycles occurring after hours 34,58,82 and 106 into the cycle. Release rates vary from 0.3 to 0.8 pounds of pure C8 released over the ten hour cycle. Based on a preliminary forecast the plant will operate 110 days in 2003. The stack is round, 31 inches in diameter, discharges 5500 ACFM air at approximately 90 C, and the discharge is up. Hope this meets your needs. John EID747746