Illinois Drinking Water: What you need to know

Governing Law and Regulations

Illinois Public Water Supply Regulation Act, 415 Illinois Compiled Statutes (ILCS) 40/1 to 40/14

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Illinois Public Water Supply Operations Act, 415 ILCS 45/0.01 to 45/23

Primary drinking water standards: 35 Illinois Administrative Code (IAC) 611.100 to 611.1061

Illinois Environmental Protection Agency (IEPA) permits: 35 IAC 602.101 to 602.120 and 35 IAC 652.501 to 652.605

Illinois Department of Public Health (IDPH) permits: 77 IAC 900.20

Public notification:

Public notice of violations: 35 IAC 611.901 to 611.911

Public notice of enforcement by the IEPA: 415 ILCS 5/18.1

Record retention: 415 ILCS 5/15

Operator certification: 35 IAC 681.100 to 681.1030

Emergency operation: 35 IAC 607.103

Public Water Supply Loan Program (PWSLP): 35 IAC 662.105 to 663.270

Application process: 35 IAC 662.160 and 35 IAC 662.310 to 662.350

Project priority list: 35 IAC 662.340 and 35 IAC 663.110 to 663.270

Regulatory Agencies

Illinois Environmental Protection Agency (IEPA) Bureau of Water Division of Public Water Supplies

Illinois Department of Public Health (IDPH) Office of Health Protection Division of Environmental Health Non-Community Water Supply Program

Illinois Pollution Control Board (Board)

U.S. Environmental Protection Agency (EPA) Region 5

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Illinois has received primacy from the U.S. Environmental Protection Agency (EPA) to administer the public water supply rules under the federal Safe Drinking Water Act (SDWA). The state generally follows the federal primary drinking water standards, including those pertaining to disinfection, drinking water analytical methods, and approval of alternative testing methods, with ...

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Governing Law and Regulations
Regulatory Agencies
Comparison: State vs. Federal
State Requirements

State Requirements

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Illinois Drinking Water Resources

Drinking Water Products

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