MASCOUTAH

Illinois — Community Water System — PWSID: IL1630800

System Information

PWSID	IL1630800
System Name	MASCOUTAH
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	MASCOUTAH
ZIP Code	62258
Address	3 W Main St
Organization	HAWKINS, CODY
Phone	618-566-2964

Population & Service

Population Served	8,759
Service Connections	3,992

Drinking Water Violations (27)

This water system has 27 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
Jun 1, 2014	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule
Jun 1, 2014	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule
Jun 1, 2014	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule
Jun 1, 2014	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jun 30, 2014	Long Term 2 Enhanced Surface Water Treatment Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Jan 1, 1997	Jan 31, 1997	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jan 31, 1997	Total Coliform Rule
Jun 1, 1996	Jun 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1996	Total Coliform Rule
Jun 1, 1996	Jun 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1996	Total Coliform Rule
Jun 1, 1996	Jun 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1996	Total Coliform Rule
Apr 1, 1995	Jun 30, 1995	Atrazine	MCL	Yes	No	.004	0.003 mg/L	—	Resolved	Jun 30, 1995	Synthetic Organic Chemicals
Apr 1, 1995	Jun 30, 1995	Atrazine	MCL	Yes	No	.004	0.003 mg/L	—	Resolved	Jun 30, 1995	Synthetic Organic Chemicals
Apr 1, 1995	Jun 30, 1995	Atrazine	MCL	Yes	No	.004	0.003 mg/L	—	Resolved	Jun 30, 1995	Synthetic Organic Chemicals
Apr 1, 1995	Jun 30, 1995	Atrazine	MCL	Yes	No	.004	0.003 mg/L	—	Resolved	Jun 30, 1995	Synthetic Organic Chemicals
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1991	Jun 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1991	Total Coliform Rule
Jun 1, 1991	Jun 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 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.

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