Tap Water Quality Report for Mendocino, 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.

Mendocino, California tap water has 320 total contaminants, with 9 being above EPA standards and 268 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (38)

38 water systems serve Mendocino, California. Select one or more to filter the data below.

MILLVIEW COUNTY WATER DISTRICT
Public Water System ID:CA2310006
Population Served:5,500
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
REDWOOD VALLEY COUNTY WATER DISTRICT
Public Water System ID:CA2310008
Population Served:5,200
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
WILLOW COUNTY WATER DISTRICT
Public Water System ID:CA2310005
Population Served:3,797
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
BROOKTRAILS TOWNSHIP CSD
Public Water System ID:CA2310009
Population Served:3,632
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
NORTH GUALALA WATER COMPANY
Public Water System ID:CA2310007
Population Served:2,593
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
ROGINA WATER COMPANY INC.
Public Water System ID:CA2310002
Population Served:2,554
Primary Source:Ground 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).