Public water system record

Upper Lake County Water District

Serves Upper Lake, Lake County, CA · 989 people served

Federal records show no health-based violations and 1 monitoring/reporting issue for Upper Lake County Water District in the last ten years.

  • CA1710009
  • UPPER LAKE
  • CA
  • 989 served

System profile

Source water Groundwater
ZIP 95485
EPA system ID CA1710009

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
1

Key facts

  • Upper Lake County Water District draws water from 2 wells.
  • Most recent formal enforcement: compliance order (no penalty) by California, May 2020.
  • Record on file since 1989, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 400 service lines.

Check whether Upper Lake County Water District serves your address

Address suggestions by Mapbox

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
Nitrate
Monitoring and reporting
Jan 1, 2019 Resolved

Full record since 1989

EPA's records for Upper Lake County Water District go back to 1989. Before October 19, 2016 they list no health-based violations and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 2
1990s 0 1
2000s 0 1
October 19, 2016 to 2019 0 1

Enforcement actions

California regulators took 2 formal enforcement actions against Upper Lake County Water District between 2009 and 2020. The most recent was a compliance order (no penalty) in May 2020.

Date By Action Violations covered
May 11, 2020 California Compliance order (no penalty) 1 violation: Nitrate
Jul 9, 2009 California Compliance order (no penalty) 1 violation: Lead and Copper Rule

Where the water comes from

Upper Lake County Water District draws water from 2 wells.

Annual water quality report

Upper Lake County Water District 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 California.