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Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

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MASON CITY

Illinois — Community Water System — PWSID: IL1250350

System Information

PWSIDIL1250350
System NameMASON CITY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedFeb 26, 2026

Location & Contact

StateIllinois
CityMASON CITY
ZIP Code62664
Address145 S Main St
OrganizationSNYDER, KEVIN
Phone217-482-3669

Population & Service

Population Served2,558
Service Connections1,080

Drinking Water Violations (91)

This water system has 91 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
Jul 2, 2025 — RPT No No — — — Unaddressed — —
Jul 2, 2025 — RPT No No — — — Unaddressed — —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Jul 1, 2009 Sep 30, 2009 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Sep 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Apr 1, 2009 Jun 30, 2009 MCL Yes No .052 MG/L 0.010 mg/L .01 Resolved Jun 30, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Jan 1, 2009 Mar 31, 2009 MCL Yes No .037 MG/L 0.010 mg/L .01 Resolved Mar 31, 2009 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Oct 1, 2008 Dec 31, 2008 MCL Yes No .017 MG/L 0.010 mg/L .01 Resolved Dec 31, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Jul 1, 2008 Sep 30, 2008 MCL Yes No .016 MG/L 0.010 mg/L .01 Resolved Sep 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Apr 1, 2008 Jun 30, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Jun 30, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Jan 1, 2008 Mar 31, 2008 MCL Yes No .025 MG/L 0.010 mg/L .01 Resolved Mar 31, 2008 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Oct 1, 2007 Dec 31, 2007 MCL Yes No .024 MG/L 0.010 mg/L .01 Resolved Dec 31, 2007 —
Jul 1, 2007 Sep 30, 2007 MCL Yes No .022 MG/L 0.010 mg/L .01 Resolved Sep 30, 2007 —
Jul 1, 2007 Sep 30, 2007 MCL Yes No .022 MG/L 0.010 mg/L .01 Resolved Sep 30, 2007 —

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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