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DORCHESTER

Illinois — Community Water System — PWSID: IL1170250

System Information

PWSIDIL1170250
System NameDORCHESTER
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
CityDORCHESTER
ZIP Code62033
Address100 Jermain
OrganizationPRIEJ, ROGER
Phone314-568-2313

Population & Service

Population Served562
Service Connections216

Drinking Water Violations (81)

This water system has 81 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
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.060 mg/L — Resolved Jun 30, 2025 —
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.060 mg/L — Resolved Jun 30, 2025 —
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.060 mg/L — Resolved Jun 30, 2025 —
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.080 mg/L — Resolved Jun 30, 2025 —
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.080 mg/L — Resolved Jun 30, 2025 —
Apr 1, 2025 Jun 30, 2025 MR No Yes — 0.080 mg/L — Resolved Jun 30, 2025 —
Jan 2, 2011 — MR No No — TT — Resolved Jan 20, 2011 —
Jan 2, 2011 — MR No No — TT — Resolved Jan 20, 2011 —
Jul 1, 2010 — Other No No — — — Resolved Jun 30, 2011 —
Jul 1, 2010 — Other No No — — — Resolved Jun 30, 2011 —
Jul 1, 2010 — Other No No — — — Resolved Jun 30, 2011 —
Jul 1, 2010 — Other No No — — — Resolved Jun 30, 2011 —
Oct 1, 2005 — MR No No — TT — Resolved Oct 30, 2007 —
Oct 1, 2005 — MR No No — TT — Resolved Oct 30, 2007 —
Jul 1, 2004 — Other No No — — — Resolved Dec 16, 2004 —
Jul 1, 2004 — Other No No — — — Resolved Dec 16, 2004 —
Jul 1, 1997 Sep 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Sep 24, 1997 —
Jul 1, 1997 Jul 31, 1997 MR No No — 5% of samples — Archived Jul 31, 1997 —
Jul 1, 1997 Jul 31, 1997 MR No No — 5% of samples — Archived Jul 31, 1997 —
Jul 1, 1997 Jul 31, 1997 MR No No — 5% of samples — Archived Jul 31, 1997 —
Jul 1, 1997 Sep 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Sep 24, 1997 —
Jul 1, 1997 Sep 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Sep 24, 1997 —
Jul 1, 1997 Sep 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Sep 24, 1997 —
Apr 1, 1997 Jun 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Jun 30, 1997 —
Apr 1, 1997 Jun 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Jun 30, 1997 —
Apr 1, 1997 Jun 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Jun 30, 1997 —
Apr 1, 1997 Jun 30, 1997 MCL Yes No .009 0.003 mg/L — Resolved Jun 30, 1997 —
Jan 1, 1997 Mar 31, 1997 MCL Yes No .01 0.003 mg/L — Resolved Mar 31, 1997 —
Jan 1, 1997 Mar 31, 1997 MCL Yes No .01 0.003 mg/L — Resolved Mar 31, 1997 —
Jan 1, 1997 Mar 31, 1997 MCL Yes No .01 0.003 mg/L — Resolved Mar 31, 1997 —
Jan 1, 1997 Mar 31, 1997 MCL Yes No .01 0.003 mg/L — Resolved Mar 31, 1997 —
Nov 1, 1996 Nov 30, 1996 MR No No — 5% of samples — Archived Nov 30, 1996 —
Nov 1, 1996 Nov 30, 1996 MR No No — 5% of samples — Archived Nov 30, 1996 —
Nov 1, 1996 Nov 30, 1996 MR No No — 5% of samples — Archived Nov 30, 1996 —
Oct 1, 1996 Dec 31, 1996 MCL Yes No .009 0.003 mg/L — Resolved Dec 31, 1996 —
Oct 1, 1996 Dec 31, 1996 MCL Yes No .009 0.003 mg/L — Resolved Dec 31, 1996 —
Oct 1, 1996 Dec 31, 1996 MCL Yes No .009 0.003 mg/L — Resolved Dec 31, 1996 —
Oct 1, 1996 Dec 31, 1996 MCL Yes No .009 0.003 mg/L — Resolved Dec 31, 1996 —
Jul 1, 1996 Sep 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Sep 30, 1996 —
Jul 1, 1996 Sep 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Sep 30, 1996 —
Jul 1, 1996 Sep 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Sep 30, 1996 —
Apr 1, 1996 Jun 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Jun 30, 1996 —
Apr 1, 1996 Apr 30, 1996 MR No No — 5% of samples — Archived Apr 30, 1996 —
Apr 1, 1996 Apr 30, 1996 MR No No — 5% of samples — Archived Apr 30, 1996 —
Apr 1, 1996 Jun 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Jun 30, 1996 —
Apr 1, 1996 Jun 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Jun 30, 1996 —
Apr 1, 1996 Jun 30, 1996 MCL Yes No .011 0.003 mg/L — Resolved Jun 30, 1996 —
Mar 1, 1996 Mar 31, 1996 MCL Yes No — 5% of samples — Archived Mar 31, 1996 —
Mar 1, 1996 Mar 31, 1996 MR No No — 5% of samples — Archived Mar 31, 1996 —
Aug 1, 1995 Aug 31, 1995 MR No No — 5% of samples — Archived Aug 31, 1995 —

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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