ALGONQUIN

Illinois — Community Water System — PWSID: IL1110050

System Information

PWSID	IL1110050
System Name	ALGONQUIN
System Type	Community Water System
Water Source	Ground Water
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	ALGONQUIN
ZIP Code	60102
Address	110 Mitchard Way
Organization	BADRAN, NADIM
Phone	847-658-2700

Population & Service

Population Served	30,700
Service Connections	11,904

Drinking Water Violations (57)

This water system has 57 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
Aug 16, 2007	—	Public Notice	Other	No	No	—	—	—	Resolved	Aug 21, 2007	Public Notice Rule and Revised PN Rule
Aug 16, 2007	—	Public Notice	Other	No	No	—	—	—	Resolved	Aug 21, 2007	Public Notice Rule and Revised PN Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2006	Total Coliform Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2006	Total Coliform Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2006	Total Coliform Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2006	Total Coliform Rule
Jul 1, 2006	Sep 30, 2006	Chlorine	MR	No	No	—	4.0 mg/L	—	Resolved	Aug 21, 2006	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006	Sep 30, 2006	Chlorine	MR	No	No	—	4.0 mg/L	—	Resolved	Aug 21, 2006	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Sep 30, 2006	Chlorine	MR	No	No	—	4.0 mg/L	—	Resolved	Aug 21, 2006	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2006	Sep 30, 2006	Chlorine	MR	No	No	—	4.0 mg/L	—	Resolved	Aug 21, 2006	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 1999	Dec 31, 1999	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1999	Lead and Copper Rule
Apr 1, 1999	Jun 30, 1999	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1999	Lead and Copper Rule
Jan 1, 1999	Mar 31, 1999	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Mar 31, 1999	Lead and Copper Rule
Jan 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1999	Lead and Copper Rule
Nov 1, 1998	Nov 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Nov 30, 1998	Total Coliform Rule
Nov 1, 1998	Nov 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Nov 30, 1998	Total Coliform Rule
Oct 1, 1998	Dec 31, 1998	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1998	Lead and Copper Rule
Jul 1, 1998	Sep 30, 1998	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 30, 1998	Lead and Copper Rule
Apr 1, 1998	Apr 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1998	Total Coliform Rule
Apr 1, 1998	Apr 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1998	Total Coliform Rule
Oct 1, 1994	Oct 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Oct 31, 1994	Total Coliform Rule
Oct 1, 1994	Oct 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Oct 31, 1994	Total Coliform Rule
Sep 2, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Dec 12, 1994	Lead and Copper Rule
Jul 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Nov 1, 1994	Lead and Copper Rule
Jul 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Nov 1, 1994	Lead and Copper Rule
Jul 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Nov 1, 1994	Lead and Copper Rule
Jul 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Nov 1, 1994	Lead and Copper Rule
Jul 1, 1993	—	Lead and Copper Rule	TT	Yes	No	—	TT	—	Resolved	Nov 1, 1994	Lead and Copper Rule
Oct 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1993	Lead and Copper Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Apr 1, 1992	Sep 30, 1992	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 30, 1992	Lead and Copper Rule
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1986	May 31, 1989	Barium	MCL	Yes	No	7.7	2 mg/L	—	Resolved	Jun 22, 1987	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1983	May 31, 1986	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1986	Inorganic Chemicals
Jun 1, 1980	May 31, 1983	Barium	MCL	Yes	No	7.7	2 mg/L	—	Archived	May 31, 1983	Inorganic Chemicals

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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