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LEMONT

Illinois — Community Water System — PWSID: IL0311620

System Information

PWSIDIL0311620
System NameLEMONT
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
CityLEMONT
ZIP Code60439
Address418 MAIN ST.
OrganizationSCHAFER, GEORGE
Phone630-257-1590

Population & Service

Population Served17,500
Service Connections6,396

Drinking Water Violations (132)

This water system has 132 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
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 27, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 27, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 27, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Feb 27, 2024 Lead and Copper Rule
Dec 30, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 15, 2021 Lead and Copper Rule
Dec 30, 2020 — Lead and Copper Rule MR No No — TT — Resolved Jan 15, 2021 Lead and Copper Rule
Oct 1, 2015 Dec 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Dec 31, 2015 Radionuclides and Revised Rad Rule
Oct 1, 2015 Dec 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Dec 31, 2015 Radionuclides and Revised Rad Rule
Oct 1, 2015 Dec 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Dec 31, 2015 Radionuclides and Revised Rad Rule
Oct 1, 2015 Dec 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Dec 31, 2015 Radionuclides and Revised Rad Rule
Jul 1, 2015 Sep 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Sep 30, 2015 Radionuclides and Revised Rad Rule
Jul 1, 2015 Sep 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Sep 30, 2015 Radionuclides and Revised Rad Rule
Jul 1, 2015 Sep 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Sep 30, 2015 Radionuclides and Revised Rad Rule
Jul 1, 2015 Sep 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Sep 30, 2015 Radionuclides and Revised Rad Rule
Apr 1, 2015 Jun 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Jun 30, 2015 Radionuclides and Revised Rad Rule
Apr 1, 2015 Jun 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Jun 30, 2015 Radionuclides and Revised Rad Rule
Apr 1, 2015 Jun 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Jun 30, 2015 Radionuclides and Revised Rad Rule
Apr 1, 2015 Jun 30, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Jun 30, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jan 1, 2015 Mar 31, 2015 Combined Radium (-226 and -228) MCL Yes No 26 PCI/L 5 pCi/L 5 Resolved Mar 31, 2015 Radionuclides and Revised Rad Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Jul 3, 2014 Consumer Confidence Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Jul 3, 2014 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Aug 7, 2013 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Aug 7, 2013 Consumer Confidence Rule
Apr 1, 2007 Jun 30, 2007 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 2007 Radionuclides and Revised Rad Rule
Apr 1, 2007 Jun 30, 2007 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2007 Mar 31, 2007 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2007 Mar 31, 2007 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 2007 Radionuclides and Revised Rad Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Mar 31, 1998 Total Coliform Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Mar 31, 1998 Total Coliform Rule
Mar 1, 1998 Mar 31, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Mar 31, 1998 Total Coliform Rule
Dec 5, 1997 Apr 10, 2001 Gross Alpha, Excl. Radon and U MCL Yes No 15.5 15 pCi/L — Resolved Dec 5, 1997 Radionuclides and Revised Rad Rule
Jul 1, 1997 Sep 30, 1997 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Sep 30, 1997 Radionuclides and Revised Rad Rule
Jul 1, 1997 Sep 30, 1997 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 4, 1997 Radionuclides and Revised Rad Rule
Apr 1, 1997 Jun 30, 1997 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Jun 11, 1997 Radionuclides and Revised Rad Rule
Apr 1, 1997 Jun 30, 1997 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 1997 Radionuclides and Revised Rad Rule
Apr 1, 1997 Jun 30, 1997 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 1997 Radionuclides and Revised Rad Rule
Apr 1, 1997 Jun 30, 1997 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Jun 11, 1997 Radionuclides and Revised Rad Rule
Jan 1, 1997 Mar 31, 1997 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 1997 Radionuclides and Revised Rad Rule
Jan 1, 1997 Mar 31, 1997 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 17, 1997 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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