Illinois NPDES regulations & environmental compliance analysis

Illinois NPDES: What you need to know

Governing Law and Regulations

Illinois Environmental Protection Act: 415 Illinois Compiled Statutes (ILCS) 5/1 to 415 ILCS 5/58.18

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National Pollutant Discharge Elimination System (NPDES) permits: 35 Illinois Administrative Code (IAC) 309.101 to 309.191

Biologically significant waters: 35 IAC 302.105(d)(6)

State construction permits: 35 IAC 309.201 to 309.282

State construction permits: 35 IAC 309.202

State operating permits: 35 IAC 309.203 to 309.204

Joint state permits: 35 IAC 309.205

Regulatory Agencies

Illinois Environmental Protection Agency (IEPA) Bureau of Water

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 operates two separate wastewater permit programs: the National Pollutant Discharge Elimination System (NPDES) permit discharge program and the state construction/operating permit program.

Illinois is authorized by the U.S. Environmental Protection Agency (EPA) to issue NPDES permits but does not have authority to manage pretreatment or sludge applications. The permits establish the conditions under which the discharge may occur, and they also establish monitoring and reporting requirements. This Illinois NPDES program follows the federal standards, including the use of their application and permit forms. Illinois rules are more stringent in areas in which biologically significant waters are present. See the national section NPDES PERMIT for more information regarding the federal NPDES requirements.

The Illinois state construction/operating permit program regulates the construction of new ...

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