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PLAINFIELD

Illinois — Community Water System — PWSID: IL1970800

System Information

PWSIDIL1970800
System NamePLAINFIELD
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
CityPLAINFIELD
ZIP Code60544
Address14400 Coil Plus Dr
OrganizationTHREEWITT, SCOTT R
Phone815-436-3577

Population & Service

Population Served50,000
Service Connections15,894

Drinking Water Violations (178)

This water system has 178 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 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jan 13, 2022 — Lead and Copper Rule MR No No — TT — Resolved Mar 30, 2022 Lead and Copper Rule
Jan 13, 2022 — Lead and Copper Rule MR No No — TT — Resolved Mar 30, 2022 Lead and Copper Rule
Jul 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Jun 14, 2018 Consumer Confidence Rule
Jul 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Jun 14, 2018 Consumer Confidence Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Aug 29, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Aug 29, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Aug 29, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Aug 29, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 2, 2011 Consumer Confidence Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Dec 2, 2011 Consumer Confidence Rule
Jan 2, 2010 — Lead and Copper Rule MR No No — TT — Resolved Jan 25, 2010 Lead and Copper Rule
Jan 2, 2010 — Lead and Copper Rule MR No No — TT — Resolved Jan 25, 2010 Lead and Copper 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
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
Feb 28, 2007 — Public Notice Other No No — — — Resolved Apr 2, 2007 Public Notice Rule and Revised PN Rule
Feb 28, 2007 — Public Notice Other No No — — — Resolved Apr 2, 2007 Public Notice Rule and Revised PN Rule
Feb 28, 2007 — Public Notice Other No No — — — Resolved Apr 2, 2007 Public Notice Rule and Revised PN Rule
Feb 28, 2007 — Public Notice Other No No — — — Resolved Apr 2, 2007 Public Notice Rule and Revised PN Rule
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2006 Total Coliform Rule
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2006 Total Coliform Rule
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2006 Total Coliform Rule
Sep 1, 2006 Sep 30, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2006 Total Coliform Rule
Jan 1, 2006 Jan 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2006 Total Coliform Rule
Jan 1, 2006 Jan 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2006 Total Coliform Rule
Jan 1, 2006 Jan 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2006 Total Coliform Rule
Jan 1, 2006 Jan 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2006 Total Coliform Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Mar 31, 2004 Combined Radium (-226 and -228) MCL Yes No 15.6 5 pCi/L — Resolved Mar 31, 2004 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Oct 1, 2003 Dec 31, 2003 Combined Radium (-226 and -228) MCL Yes No 12.1 5 pCi/L — Resolved Dec 31, 2003 Radionuclides and Revised Rad Rule
Jul 1, 2003 Sep 30, 2003 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L — Resolved Sep 30, 2003 Radionuclides and Revised Rad Rule
Jul 1, 2003 Sep 30, 2003 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L — Resolved Sep 30, 2003 Radionuclides and Revised Rad Rule
Jul 1, 2003 Sep 30, 2003 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L — Resolved Sep 30, 2003 Radionuclides and Revised Rad Rule
Jul 1, 2003 Sep 30, 2003 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L — Resolved Sep 30, 2003 Radionuclides and Revised Rad Rule
Jul 1, 2003 Sep 30, 2003 Combined Radium (-226 and -228) MCL Yes No 10 5 pCi/L — Resolved Sep 30, 2003 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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