9236 LIRB LIRB 1997 05554490 VERMILION RIVER AT MC DOWELL, IL A 8/11/1997 I RTH Harris, Mitchell A. N R NA 2665 1 0 0 1 0 1 0 0 100 Light Rain 8/11/1997 8/11/1997 425 Wood very sparse Sampled downstream of bridge Elmids abundant Burrowing mayflies 4/13/2000 13:17 7/2/2003 12:42