Biological and Water Quality Survey of the Vermilion River Vermilion County,Illinois, 1994

摘要

In April, 1994, heavy rainfall resulted in record stream flows on the VermilionRiver contributing to the failure of a levee protecting the Danville Sanitary District wastewater treatment plant. The Illinois Environmental Protection Agency, Division of Water Pollution Control, Springfield Monitoring Unit and Champaign Field Operation Section staff conducted weekly water quality sampling at four stations on the Vermilion River from May 16 through September 14, 1994, to evaluate the effect of the partially treated effluent discharges on the stream. A facility related stream survey (FRSS) was also conducted by the Springfield Monitoring Unit on September 13 and 14, 1994. In addition to water chemistry data, sampling during the FRSS included macroinvertebrate communities, sediment chemistry and an evaluation of stream habitat at six stations.