MARATHON LIGHT & WATER DEPARTMENT

Iowa — Community Water System — PWSID: IA1150030

System Information

PWSID	IA1150030
System Name	MARATHON LIGHT & WATER DEPARTMENT
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	MARATHON
ZIP Code	50565
Address	ATTN TYLER JARVIS
Organization	MARATHON LIGHT & WATER DEPARTMENT
Phone	712-289-2261

Population & Service

Population Served	230
Service Connections	120

Drinking Water Violations (63)

This water system has 63 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
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.011	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.011	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.011	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.011	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.011	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.015	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.015	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.015	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.015	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.015	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.012	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Dec 1, 1996	Dec 31, 1996	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1996	Nitrate Rule
Dec 1, 1996	Dec 31, 1996	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1996	Nitrate Rule
Dec 1, 1996	Dec 31, 1996	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1996	Nitrate Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 1993	Total Coliform Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 1993	Total Coliform Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 1993	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1992	Total Coliform Rule
Apr 1, 1988	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1988	Lead and Copper Rule
Jul 1, 1985	Jun 30, 1988	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 28, 1988	Arsenic Rule
Jul 1, 1985	Jun 30, 1988	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Jun 28, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Jun 28, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Jun 28, 1988	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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