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Public water system record

Clear Lake

Serves Clear Lake, Sherburne County, MN · 669 people served

Federal records show no health-based violations and 5 monitoring/reporting issues for Clear Lake in the last ten years. At least one of these issues remains unresolved.

  • MN1710009
  • CLEAR LAKE
  • MN
  • 669 served

System profile

Source water Groundwater
ZIP 55319
EPA system ID MN1710009

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
5

Key facts

  • Clear Lake draws water from 2 wells.
  • Most recent formal enforcement: signed compliance agreement by Minnesota, December 1993.
  • Record on file since 1993, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 66 unknown out of 328 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
 Jul 2, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
 Jan 1, 2021 Active
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2020 Resolved
Chlorine
Monitoring and reporting
 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
 Oct 1, 2020 Resolved

Full record since 1993

EPA's records for Clear Lake go back to 1993. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 5
2010 to October 18, 2016 0 2
2020s 0 5

Most recent health-based violation before October 19, 2016: Nitrate (acute), began January 1993, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
 Jan 1, 1993 Resolved

Enforcement actions

Minnesota regulators took 1 formal enforcement action against Clear Lake in 1993. The most recent was a signed compliance agreement in December 1993.

Date By Action Violations covered
Dec 1, 1993 Minnesota Signed compliance agreement 1 violation (1 health-based): Nitrate

Where the water comes from

Clear Lake draws water from 2 wells.

Annual water quality report

Clear Lake must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Minnesota.

Certified drinking water labs by state EPA guidance for private wells