Document k3wKBOOR5X2ZDMYn0pE6bJ1E

AR226-2315 Charles J Zarzecki 03/19/200311:31 AM To: Catherine A Barton/AE/DuPont cc: Subject VVV C8 Modeling Cathie, I took a look at the location of the maximum predictions in the W V C8 modeling summary. It seems that the maximum short-term impacts are predicted to occur at a receptor located about 15 meters within the plant fenceline, according to the modeling we did. However, 15 meters will not make a huge difference in the predicted number. W hat prompted m e into looking at this was during our meeting on Wlarch 11, Ohio EPA somehow thought that the maximum 1-hour occurred on their side of the river, in the high terrain. Did they do their own modeling to determine this, or are they just mistaken? If the maximum concentration does occur at the plant property line, then complex terrain is a dead issue. Just some items to think about. Regards, Charlie Z. EID747640