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MONMOUTH

Illinois — Community Water System — PWSID: IL1870150

System Information

PWSIDIL1870150
System NameMONMOUTH
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedDec 4, 2025

Location & Contact

StateIllinois
CityMONMOUTH
ZIP Code61462
AddressCity Hall
OrganizationBLEDSOE, BRAYDEN
Phone309-734-4026

Population & Service

Population Served8,902
Service Connections3,800

Drinking Water Violations (244)

This water system has 244 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
Nov 28, 2024 — Public Notice Other No No — — — Resolved Nov 20, 2024 Public Notice Rule and Revised PN Rule
Nov 28, 2024 — Public Notice Other No No — — — Resolved Nov 20, 2024 Public Notice Rule and Revised PN Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L 5 Resolved Dec 31, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L 5 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Jul 1, 2005 Sep 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L 15 Resolved Jul 12, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Apr 1, 2005 Jun 30, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Jun 30, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Gross Alpha, Excl. Radon and U MCL Yes No 27 15 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Jan 1, 2005 Mar 31, 2005 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Mar 31, 2005 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2004 Dec 31, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Jul 1, 2004 Sep 30, 2004 Combined Radium (-226 and -228) MCL Yes No 10.2 5 pCi/L — Resolved Sep 30, 2004 Radionuclides and Revised Rad 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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