LYONS

Illinois — Community Water System — PWSID: IL0311710

System Information

PWSID	IL0311710
System Name	LYONS
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	LYONS
ZIP Code	60534
Address	4200 S LAWNDALE AVE
Organization	SHEAHAN, THOMAS
Phone	708-442-4500

Population & Service

Population Served	10,304
Service Connections	2,975

Drinking Water Violations (29)

This water system has 29 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	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Unaddressed	—	Lead and Copper Rule Revisions
Jul 2, 2025	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Unaddressed	—	Lead and Copper Rule Revisions
Jul 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 4, 2020	Consumer Confidence Rule
Jul 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 4, 2020	Consumer Confidence Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Jul 1, 1997	Dec 31, 1997	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1997	Lead and Copper Rule
Apr 1, 1997	Jun 30, 1997	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1997	Mar 31, 1997	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 31, 1997	Lead and Copper Rule
Jan 1, 1996	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Mar 3, 1997	Lead and Copper Rule
Jan 1, 1996	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Mar 3, 1997	Lead and Copper Rule
Jan 1, 1996	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Mar 3, 1997	Lead and Copper Rule
Jan 1, 1994	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Jan 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Jan 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Jan 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Jan 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Jan 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Feb 5, 1995	Lead and Copper Rule
Dec 7, 1992	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Jan 28, 1994	Lead and Copper Rule
Dec 7, 1992	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Jan 28, 1994	Lead and Copper Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Mar 1, 1991	Mar 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1991	Total Coliform Rule
Mar 1, 1991	Mar 31, 1991	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1991	Total Coliform Rule
Mar 1, 1991	Mar 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1991	Total Coliform Rule
Mar 1, 1991	Mar 31, 1991	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1991	Total Coliform Rule
—	—		—	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.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in Illinois