Clear Lake

Minnesota — Community Water System — PWSID: MN1710009

System Information

PWSID	MN1710009
System Name	Clear Lake
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	Jan 24, 1981
Last Reported	Nov 25, 2025

Location & Contact

State	Minnesota
City	Clear Lake
ZIP Code	55319
Address	Clear Lake City Hall
Organization	Clear Lake City Council
Phone	3207433111

Population & Service

Population Served	669
Service Connections	218

Drinking Water Violations (47)

This water system has 47 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 2, 2025	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Resolved	Oct 30, 2025	Lead and Copper Rule Revisions
Jul 2, 2025	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Resolved	Oct 30, 2025	Lead and Copper Rule Revisions
Jul 2, 2025	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Resolved	Oct 30, 2025	Lead and Copper Rule Revisions
Jan 1, 2021	—	Lead and Copper Rule	MR	No	No	—	TT	—	Unaddressed	—	Lead and Copper Rule
Oct 1, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Oct 28, 2021	Lead and Copper Rule
Oct 1, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Oct 28, 2021	Lead and Copper Rule
Oct 1, 2020	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Oct 28, 2021	Lead and Copper Rule
Oct 1, 2020	Dec 31, 2020	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Archived	Dec 31, 2020	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020	Dec 31, 2020	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Archived	Dec 31, 2020	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020	Dec 31, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Dec 31, 2020	Revised Total Coliform Rule
Oct 1, 2020	Dec 31, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Dec 31, 2020	Revised Total Coliform Rule
Oct 1, 2020	Dec 31, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Dec 31, 2020	Revised Total Coliform Rule
Oct 1, 2020	Dec 31, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Dec 31, 2020	Revised Total Coliform Rule
Jan 1, 2014	Mar 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2014	Total Coliform Rule
Jan 1, 2014	Mar 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2014	Total Coliform Rule
Jan 1, 2014	Mar 31, 2014	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2014	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Mar 31, 2014	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2014	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Mar 31, 2014	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2014	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Mar 31, 2014	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2014	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Mar 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2014	Total Coliform Rule
Jan 1, 2014	Mar 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2014	Total Coliform Rule
Jan 1, 2014	Mar 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2014	Total Coliform Rule
Jul 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jul 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jul 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jul 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jul 1, 1999	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2000	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1997	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 30, 1997	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1996	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1996	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1996	Lead and Copper Rule
Jan 1, 1995	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1996	Lead and Copper Rule
Jan 1, 1994	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 23, 1994	Lead and Copper Rule
Jan 1, 1994	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 23, 1994	Lead and Copper Rule
Jan 1, 1994	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 23, 1994	Lead and Copper Rule
Jan 1, 1994	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 23, 1994	Lead and Copper Rule
Oct 1, 1993	Dec 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1993	Total Coliform Rule
Oct 1, 1993	Dec 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1993	Total Coliform Rule
Oct 1, 1993	Dec 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Dec 31, 1993	Total Coliform Rule
Jan 1, 1993	Dec 31, 1993	Nitrate	MCL	Yes	No	12	10 mg/L	—	Resolved	Dec 31, 1993	Nitrate Rule
Jan 1, 1993	Dec 31, 1993	Nitrate	MCL	Yes	No	12	10 mg/L	—	Resolved	Dec 31, 1993	Nitrate Rule
Jan 1, 1993	Dec 31, 1993	Nitrate	MCL	Yes	No	12	10 mg/L	—	Resolved	Dec 31, 1993	Nitrate Rule
Jan 1, 1993	Dec 31, 1993	Nitrate	MCL	Yes	No	12	10 mg/L	—	Resolved	Dec 31, 1993	Nitrate Rule

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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