Illinois Stormwater-General regulations & environmental compliance analysis

Illinois Stormwater-General: What you need to know

Governing Law and Regulations

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

Regulatory Agencies
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Illinois Environmental Protection Agency (IEPA) Bureau of Water Division of Water Pollution Control

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 is authorized by the U.S. Environmental Protection Agency (EPA) to administer the federal National Pollutant Discharge Elimination System (NPDES) permit program, including general and individual permits for stormwater discharges. The state follows the federal permitting regulations for stormwater discharges. See the national section STORMWATER - GENERAL for more information.

Stormwater permits are issued for industrial facilities, construction activities, and municipal separate storm sewer systems (MS4s). See the state sections STORMWATER - INDUSTRIAL FACILITIES, STORMWATER - CONSTRUCTION ACTIVITIES, and STORMWATER - MUNICIPALITIES for information on the permitting requirements for these specific discharges.

In Illinois, some municipalities and counties have additional requirements for stormwater discharges.

Administration and enforcement. IEPA's Division of Water Pollution Control administers and enforces the stormwater discharge permit regulations.

State Requirements

OVERVIEW

Illinois has both individual and general permits for stormwater discharges. A facility may request an individual permit if it exhibits characteristics that are different from those facilities covered by the state's general permit. Examples of ...


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