STOCKTON MUNI WATER SUPPLY

Iowa — Community Water System — PWSID: IA7063096

System Information

PWSID	IA7063096
System Name	STOCKTON MUNI 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	CALAMUS
ZIP Code	52729
Address	ATTN OPERATOR
Organization	STOCKTON MUNI WATER SUPPLY
Phone	563-579-5626

Population & Service

Population Served	176
Service Connections	90

Drinking Water Violations (51)

This water system has 51 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, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 13, 2019	Consumer Confidence Rule
Jul 1, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 13, 2019	Consumer Confidence Rule
Dec 1, 2012	Dec 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2012	Total Coliform Rule
Dec 1, 2012	Dec 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2012	Total Coliform Rule
Dec 1, 2012	Dec 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2012	Total Coliform Rule
Dec 1, 2012	Dec 31, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2012	Total Coliform Rule
Jul 1, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 16, 2007	Consumer Confidence Rule
Jul 1, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 16, 2007	Consumer Confidence Rule
Jul 1, 2005	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 22, 2006	Consumer Confidence Rule
Jul 1, 2005	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Feb 22, 2006	Consumer Confidence Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1993	Total Coliform Rule
Apr 1, 1988	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Oct 10, 1988	Lead and Copper Rule
Apr 1, 1988	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Oct 10, 1988	Lead and Copper Rule
Jul 1, 1985	Jun 30, 1988	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 1988	Arsenic Rule
Jul 1, 1985	Jun 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 1988	Arsenic Rule
Jul 1, 1985	Jun 30, 1988	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Jun 30, 1988	Nitrate Rule
Jul 1, 1985	Jun 30, 1988	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Jun 30, 1988	Nitrate Rule
Jul 1, 1985	Jun 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
Jul 1, 1985	Jun 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Jun 30, 1988	Inorganic Chemicals
—	—		—	No	No	—	—	—	—	—	—
—	—		—	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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