WESTMONT

Illinois — Community Water System — PWSID: IL0430950

System Information

PWSID	IL0430950
System Name	WESTMONT
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	WESTMONT
ZIP Code	68559
Address	31 W Quincy St
Organization	RIES, AMY N.
Phone	630-981-6289

Population & Service

Population Served	24,161
Service Connections	7,021

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
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, 2012	Oct 31, 2012	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2012	Total Coliform Rule
Oct 1, 2012	Oct 31, 2012	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2012	Total Coliform Rule
Oct 1, 2012	Oct 31, 2012	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2012	Total Coliform Rule
Oct 1, 2012	Oct 31, 2012	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2012	Total Coliform Rule
Jan 1, 2008	Jun 30, 2008	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 2008	Lead and Copper Rule
Jan 1, 2008	Jun 30, 2008	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 2008	Lead and Copper Rule
Jan 1, 2007	Jun 30, 2007	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 2007	Lead and Copper Rule
Jan 1, 2007	Jun 30, 2007	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 2007	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Dec 5, 1996	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Dec 5, 1996	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Dec 5, 1996	Lead and Copper Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Nov 21, 1990	Nov 20, 1994	Combined Radium (-226 and -228)	MCL	Yes	No	6.3	5 pCi/L	—	Resolved	Jan 24, 1992	Radionuclides and Revised Rad Rule
Dec 9, 1985	Dec 8, 1989	Combined Radium (-226 and -228)	MCL	Yes	No	5.7	5 pCi/L	—	Resolved	Feb 1, 1988	Radionuclides and Revised Rad Rule
Dec 9, 1985	Dec 8, 1989	Combined Radium (-226 and -228)	MCL	Yes	No	5.7	5 pCi/L	—	Resolved	Feb 1, 1988	Radionuclides and Revised Rad Rule
Dec 9, 1985	Dec 8, 1989	Combined Radium (-226 and -228)	MCL	Yes	No	5.7	5 pCi/L	—	Resolved	Feb 1, 1988	Radionuclides and Revised Rad Rule
Dec 9, 1985	Dec 8, 1989	Combined Radium (-226 and -228)	MCL	Yes	No	5.7	5 pCi/L	—	Resolved	Feb 1, 1988	Radionuclides and Revised Rad Rule
Dec 9, 1985	Dec 8, 1989	Combined Radium (-226 and -228)	MCL	Yes	No	5.7	5 pCi/L	—	Resolved	Feb 1, 1988	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

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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