Tap Water Quality Report for Alameda, 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.

Alameda, California tap water has 285 total contaminants, with 10 being above EPA standards and 151 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (12)

12 water systems serve Alameda, California. Select one or more to filter the data below.

EAST BAY MUD
Public Water System ID:CA0110005
Population Served:1,442,800
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
ALAMEDA COUNTY WATER DISTRICT
Public Water System ID:CA0110001
Population Served:344,000
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
DUBLIN SAN RAMON SERVICES DISTRICT
Public Water System ID:CA0110009
Population Served:98,776
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
CALIFORNIA WATER SERVICE - LIVERMORE
Public Water System ID:CA0110003
Population Served:60,414
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
ALAMEDA POINT
Public Water System ID:CA0110016
Population Served:1,400
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
CASTLEWOOD DOMESTIC WATER SYSTEM
Public Water System ID:CA0105008
Population Served:524
Primary Source:Ground water purchased
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).