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CHICAGO

IL — Community Water System — PWSID: IL0316000

System Information

PWSIDIL0316000
System NameCHICAGO
System TypeCommunity
Water SourceSurface Water

Location

StateIL
City—
County—
ZIP Code—

Population

Population Served2,746,388

Drinking Water Violations (207)

This water system has 207 violations recorded in the EPA SDWIS database.

DateContaminantHealth-BasedStatusRule
Jul 2, 2025 LEAD AND COPPER RULE REVISIONS Y Unaddressed Lead and Copper Rule Revisions
Jul 2, 2025 LEAD AND COPPER RULE REVISIONS Y Unaddressed Lead and Copper Rule Revisions
Jun 15, 2025 Public Notice Y Unaddressed Public Notice Rule and Revised PN Rule
May 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Interim Enhanced Surface Water Treatment Rule Y Resolved Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 CARBON, TOTAL Y Resolved Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 30, 2021 Lead and Copper Rule Y Resolved Lead and Copper Rule
Dec 30, 2021 Lead and Copper Rule Y Resolved Lead and Copper Rule
Jul 1, 2021 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jul 1, 2021 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jul 1, 2020 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jul 1, 2020 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jan 1, 2019 Endothall Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endothall Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endothall Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Picloram Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 BHC-GAMMA Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endrin Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endrin Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endrin Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Endrin Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 HEXACHLOROBENZENE Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 HEXACHLOROBENZENE Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 2,4-D Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Heptachlor epoxide Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Heptachlor epoxide Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Atrazine Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Atrazine Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Hexachlorocyclopentadiene Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Hexachlorocyclopentadiene Y Resolved Synthetic Organic Chemicals
Jan 1, 2019 Hexachlorocyclopentadiene Y Resolved Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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