Tap Water Quality Report for Lake, California

Last Provided Update:N/A
Next Expected Update:April 19, 2025

Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.

Lake, California tap water has 425 total contaminants, with 21 being above EPA standards and 318 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (43)

43 water systems serve Lake, California. Select one or more to filter the data below.

HIGHLANDS MUTUAL WATER COMPANY
Public Water System ID:CA1710003
Population Served:9,510
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
HIDDEN VALLEY LAKE CSD
Public Water System ID:CA1710015
Population Served:6,235
Primary Source:Ground water
Last Updated:Nov 15, 2024
Contact:
KONOCTI COUNTY WATER DISTRICT
Public Water System ID:CA1710006
Population Served:5,928
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
GOLDEN STATE WATER CO.-CLEARLAKE SYSTEM
Public Water System ID:CA1710002
Population Served:4,648
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
MT. KONOCTI MUTUAL WATER COMPANY
Public Water System ID:CA1710014
Population Served:4,360
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
LAKE COUNTY CSA 21 - NORTH LAKEPORT
Public Water System ID:CA1710021
Population Served:4,241
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:

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Water Quality Analysis

Comprehensive analysis of your water quality, showing both detected contaminants and violations history. Note that exceeding EPA contaminant levels in a single test doesn't always constitute a violation, as violations typically require sustained exceedances or failure to follow required treatment protocols.

Water Analysis

View detected contaminants and concentration levels for your water system(s).