Economic impact of proposed water quality and effluent standard amendments for water in the Sangamon River basin

Between 1979 and 1983, the Illinois Environmental Protection Agency (IEPA) conducted a comprehensive review of water-quality standards applicable to the waters of the Sangamon River Basin. The intent of the review was to assess the adequacy of current water-quality standards for protection of existing and potential water uses. Based on these investigations, IEPA made proposals specific to the Sangamon River Basin regarding seven water parameters as addressed in the Illinois Pollution Control Board regulatory dociet R83-20. These seven parameters are: iron, manganese, phosphorus, boron, dissolved oxygen, ammonia nitrogen and temperature. The evaluation of anticipated water quality impacts and ramifications for public health and water use presented in this ECIS was based on an independent technical review of the literature, the hearing record, background information provided by the IEPA and other data sources.