WEBSTER CITY WATER SUPPLY

Iowa — Community Water System — PWSID: IA4063094

System Information

PWSID	IA4063094
System Name	WEBSTER CITY 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	WEBSTER CITY
ZIP Code	50595
Address	ATTN NICHOLAS KNOWLES WATER SUPT
Organization	WEBSTER CITY WATER SUPPLY
Phone	515-832-9146

Population & Service

Population Served	7,825
Service Connections	3,748

Drinking Water Violations (38)

This water system has 38 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
Jun 30, 2020	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jul 2, 2020	Ground Water Rule
Jun 30, 2020	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jul 2, 2020	Ground Water Rule
Jun 30, 2020	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jul 2, 2020	Ground Water Rule
Jun 30, 2020	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jul 2, 2020	Ground Water Rule
Jun 30, 2020	—	E. COLI	MR	No	Yes	—	—	—	Resolved	Jul 2, 2020	Ground Water Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Oct 1, 2001	Sep 30, 2002	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Sep 30, 2002	Arsenic Rule
Jul 1, 2000	Jul 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2000	Total Coliform Rule
Jul 1, 2000	Jul 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2000	Total Coliform Rule
Jul 1, 2000	Jul 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2000	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Sep 15, 1993	Lead and Copper Rule
May 2, 1983	Jun 1, 1983	Arsenic	MCL	Yes	No	.055	0.010 mg/L	.05	Archived	Jun 1, 1983	Arsenic Rule
—	—		—	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.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in Iowa