WINFIELD

Illinois — Community Water System — PWSID: IL0431150

System Information

PWSID	IL0431150
System Name	WINFIELD
System Type	Community Water System
Water Source	Surface Water Purchased
Activity Status	Active
Owner Type	Local
EPA Region	05
Serves School	No
Wholesaler	No
First Reported	Feb 13, 1981
Last Reported	Dec 4, 2025

Location & Contact

State	Illinois
City	WINFIELD
ZIP Code	60190
Address	VILLAGE OF WINFIELD
Organization	LOOMIS, TYE
Phone	630-933-7140

Population & Service

Population Served	9,835
Service Connections	3,830

Drinking Water Violations (43)

This water system has 43 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
Dec 30, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jan 18, 2021	Lead and Copper Rule
Dec 30, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jan 18, 2021	Lead and Copper Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jul 31, 2001	Total Coliform Rule
Jun 1, 1999	Jun 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1999	Total Coliform Rule
Jun 1, 1999	Jun 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1999	Total Coliform Rule
May 1, 1999	May 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	May 31, 1999	Total Coliform Rule
May 1, 1999	May 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	May 31, 1999	Total Coliform Rule
Apr 1, 1999	Apr 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1999	Total Coliform Rule
Apr 1, 1999	Apr 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1999	Total Coliform Rule
Mar 1, 1999	Mar 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1999	Total Coliform Rule
Mar 1, 1999	Mar 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1999	Total Coliform Rule
Apr 1, 1997	Apr 30, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1997	Total Coliform Rule
Apr 1, 1997	Apr 30, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1997	Total Coliform Rule
Apr 1, 1997	Apr 30, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1997	Total Coliform Rule
Mar 1, 1997	Mar 31, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1997	Total Coliform Rule
Mar 1, 1997	Mar 31, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1997	Total Coliform Rule
Mar 1, 1997	Mar 31, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1997	Total Coliform Rule
Dec 1, 1995	Dec 31, 1995	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1995	Total Coliform Rule
Dec 1, 1995	Dec 31, 1995	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1995	Total Coliform Rule
Dec 1, 1995	Dec 31, 1995	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1995	Total Coliform Rule
Apr 1, 1994	Jun 30, 1994	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Apr 1, 1994	Jun 30, 1994	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Jun 30, 1994	Radionuclides and Revised Rad Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Mar 1, 1994	Mar 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1994	Total Coliform Rule
Jan 1, 1994	Mar 31, 1994	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Mar 31, 1994	Radionuclides and Revised Rad Rule
Jan 1, 1994	Mar 31, 1994	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Mar 31, 1994	Radionuclides and Revised Rad Rule
Jun 30, 1977	Jun 29, 1981	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	Jun 29, 1981	Radionuclides and Revised Rad Rule
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—

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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