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COLCHESTER

Illinois — Community Water System — PWSID: IL1090200

System Information

PWSIDIL1090200
System NameCOLCHESTER
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedDec 4, 2025

Location & Contact

StateIllinois
CityCOLCHESTER
ZIP Code62326
AddressCITY OF COLCHESTER
OrganizationWEBER, JUSTIN W.
Phone309-776-3105

Population & Service

Population Served1,395
Service Connections620

Drinking Water Violations (160)

This water system has 160 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
Jan 1, 2009 Jan 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2009 Total Coliform Rule
Jan 1, 2009 Jan 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2009 Total Coliform Rule
Mar 1, 2008 Mar 31, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2008 Mar 31, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2008 Mar 31, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2008 Mar 31, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2008 Mar 31, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 11, 2008 — Public Notice Other No No — — — Resolved Mar 3, 2008 Public Notice Rule and Revised PN Rule
Feb 11, 2008 — Public Notice Other No No — — — Resolved Mar 3, 2008 Public Notice Rule and Revised PN Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2008 Feb 29, 2008 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 29, 2008 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2007 Dec 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2007 Mar 31, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2006 Aug 31, 2006 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2006 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2006 Aug 31, 2006 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2006 Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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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