JOHNSTON CITY

Illinois — Community Water System — PWSID: IL1990500

System Information

PWSIDIL1990500
System NameJOHNSTON CITY
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedFeb 26, 2026

Location & Contact

StateIllinois
CityJOHNSTON CITY
ZIP Code62951
Address100 W. Broadway
OrganizationWEST, JADE
Phone618-983-6651

Population & Service

Population Served3,509
Service Connections1,913

Drinking Water Violations (21)

This water system has 21 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Aug 22, 2025 Other No No Resolved Sep 19, 2025
Aug 22, 2025 Other No No Resolved Sep 19, 2025
Jul 1, 2025 MR No No TT Unaddressed
Jul 1, 2025 MR No No TT Unaddressed
Oct 17, 2024 TT Yes No Resolved Apr 17, 2025
Oct 17, 2024 TT Yes No Resolved Apr 17, 2025
Oct 17, 2024 TT Yes No Resolved Apr 17, 2025
Oct 17, 2024 TT Yes No Resolved Apr 17, 2025
Jul 1, 2024 Other No No Resolved Nov 1, 2024
Jul 1, 2024 Other No No Resolved Nov 1, 2024
Jul 1, 2018 Other No No Resolved Oct 9, 2018
Jul 1, 2018 Other No No Resolved Oct 9, 2018
Jan 1, 2011 Mar 31, 2011 MR No Yes 4.0 mg/L Resolved Mar 21, 2011
Jan 1, 2011 Mar 31, 2011 MR No Yes 4.0 mg/L Resolved Mar 21, 2011
Jul 1, 1997 Jul 31, 1997 MCL Yes No 5% of samples Archived Jul 31, 1997
Jul 1, 1997 Jul 31, 1997 MCL Yes No 5% of samples Archived Jul 31, 1997
Jul 1, 1997 Jul 31, 1997 MCL Yes No 5% of samples Archived Jul 31, 1997
Feb 1, 1992 Feb 29, 1992 MR No No 5% of samples Archived Feb 29, 1992
Feb 1, 1992 Feb 29, 1992 MR No No 5% of samples Archived Feb 29, 1992
Feb 1, 1992 Feb 29, 1992 MR No No 5% of samples Archived Feb 29, 1992
Jun 30, 1977 Jun 29, 1981 MR No No 15 pCi/L Archived Jun 29, 1981

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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