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Water Quality

Bureau of Water (main page)
Information regarding drinking water, wastewater, storm water, groundwater, and more

Compliance & Enforcement
Information regarding drinking water, wastewater, & NPDES compliance, enforcement orders, and Compliance Commitment Agreements

Forms, Permits, and Fees
information regarding Bureau of Air, Water, and Land forms, permits, and fees and associated resources

Drinking Water
Information for public water users & private well users, drinking water operator certification, and more

Statutes & Regulations
Information regarding drinking water and wastewater permitting, statutes & regulations, and more

Watershed Management
General information, reports, and associated resources 

Illinois Groundwater Protection Act
General information and associated reports

Regulations & laws, notifications, and more

Concentrated Animal Feeding Operations (CAFOs)
Section 319 projects, Livestock Facility Investigation Annual Reports, and more  

Harmful Algal Blooms
Information regarding Algal Blooms (HABs), reporting HABs, monitoring HABs, and the statewide HAB program

Illinois Nutrient Loss Reduction Strategy
Information regarding state efforts to improve water quality at home and downstream by reducing nitrogen and phosphorus levels in our lakes, streams, and rivers

Lake Notes Fact Sheets
Fact sheets about aquatic exotics, determining your lake's watershed, Illinois lakeshore birds, shoreline stabilization, pressure treated wood, zebra mussels, waterborne pathogens, and more

Additional Resources