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ST CHARLES

Illinois — Community Water System — PWSID: IL0894830

System Information

PWSIDIL0894830
System NameST CHARLES
System TypeCommunity
Water SourceGround Water

Location

StateIllinois
City—
County—
ZIP Code—

Population

Population Served33,103

Drinking Water Violations (29)

This water system has 29 violations recorded in the EPA SDWIS database.

DateContaminantHealth-BasedStatusRule
Jul 1, 2025 Consumer Confidence Rule Y Unaddressed Consumer Confidence Rule
Oct 1, 2020 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Oct 1, 2020 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jul 1, 2016 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jul 1, 2016 Consumer Confidence Rule Y Resolved Consumer Confidence Rule
Jan 1, 2002 Nitrate Y Resolved Nitrate Rule
Jan 1, 2002 Nitrate Y Resolved Nitrate Rule
Jan 1, 2002 Nitrate Y Resolved Nitrate Rule
Jan 1, 2002 Nitrate Y Resolved Nitrate Rule
Jul 1, 1995 Coliform (TCR) Y Archived Total Coliform Rule
Jul 1, 1995 Coliform (TCR) Y Archived Total Coliform Rule
Jul 1, 1995 Coliform (TCR) Y Archived Total Coliform Rule
Jul 1, 1995 Coliform (TCR) Y Archived Total Coliform Rule
Jan 30, 1991 Gross Alpha, Excl. Radon and U Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Combined Radium (-226 and -228) Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Gross Alpha, Excl. Radon and U Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Gross Alpha, Excl. Radon and U Y Resolved Radionuclides and Revised Rad Rule
Jan 30, 1991 Gross Alpha, Excl. Radon and U Y Resolved Radionuclides and Revised Rad Rule
Jun 30, 1977 Gross Alpha, Excl. Radon and U Y Archived Radionuclides and Revised Rad Rule
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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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