Governing Law and Regulations
Illinois Environmental Protection Agency (IEPA) Bureau of Water Division of Water Pollution Control Surface Water Section
Illinois Pollution Control Board (IPCB)
U.S. Environmental Protection Agency (EPA) Region 5
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Illinois effluent discharge quality limits are contained in the state's NPDES permit conditions issued to regulated facilities that discharge wastewater. The state generally follows the federal rules, but also has some additional requirements for effluent limitations related to toxicity, deoxygenating wastes, phosphorus, ammonia, and metals. See the national section EFFLUENT LIMITATIONS for additional guidance information about the federal requirements.
Illinois has established a pretreatment effluent trading program. IEPA's TMDL program is based on a watershed model to maintain the state's water quality standards (35 IAC 302.100 to 302.669).
• Administration and enforcement. IEPA's Surface Water Section is responsible for monitoring the quality ...