MONTICELLO WATER SUPPLY

Iowa — Community Water System — PWSID: IA5343098

System Information

PWSID	IA5343098
System Name	MONTICELLO WATER SUPPLY
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	07
Serves School	No
Wholesaler	No
First Reported	Feb 27, 1979
Last Reported	Dec 19, 2025

Location & Contact

State	Iowa
City	MONTICELLO
ZIP Code	52310
Address	ATTN JIM TJADEN
Organization	MONTICELLO WATER SUPPLY
Phone	319-465-3731

Population & Service

Population Served	4,040
Service Connections	1,707

Drinking Water Violations (60)

This water system has 60 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
May 21, 2013	—	Public Notice	Other	No	No	—	—	—	Resolved	May 3, 2013	Public Notice Rule and Revised PN Rule
May 21, 2013	—	Public Notice	Other	No	No	—	—	—	Resolved	May 3, 2013	Public Notice Rule and Revised PN Rule
May 21, 2013	—	Public Notice	Other	No	No	—	—	—	Resolved	May 3, 2013	Public Notice Rule and Revised PN Rule
May 21, 2013	—	Public Notice	Other	No	No	—	—	—	Resolved	May 3, 2013	Public Notice Rule and Revised PN Rule
Jan 1, 2013	Jan 31, 2013	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 2013	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Apr 1, 2003	Mar 31, 2012	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Mar 31, 2012	Inorganic Chemicals
Apr 1, 2003	Mar 31, 2012	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Mar 31, 2012	Inorganic Chemicals
Apr 1, 2003	Mar 31, 2012	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Mar 31, 2012	Inorganic Chemicals
Apr 1, 2003	Mar 31, 2012	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Mar 31, 2012	Inorganic Chemicals
Aug 1, 2002	Aug 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2002	Total Coliform Rule
Aug 1, 2002	Aug 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2002	Total Coliform Rule
Aug 1, 2002	Aug 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2002	Total Coliform Rule
Aug 1, 2002	Aug 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2002	Total Coliform Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Oct 1, 2000	Sep 30, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2001	Arsenic Rule
Jul 1, 1997	Sep 30, 1997	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 1997	Nitrate Rule
Jul 1, 1997	Sep 30, 1997	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 1997	Nitrate Rule
Jul 1, 1997	Sep 30, 1997	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 1997	Nitrate Rule
Jul 1, 1997	Sep 30, 1997	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 1997	Nitrate Rule
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—
—	—		—	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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