Tap Water Quality Report for Ventura, 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.

Ventura, California tap water has 1000 total contaminants, with 11 being above EPA standards and 554 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (68)

68 water systems serve Ventura, California. Select one or more to filter the data below.

OXNARD WATER DEPT
Public Water System ID:CA5610007
Population Served:200,232
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
VENTURA WATER DEPARTMENT
Public Water System ID:CA5610017
Population Served:113,500
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
VENTURA WWD NO. 8 - SIMI VALLEY
Public Water System ID:CA5610023
Population Served:94,738
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
VENTURA CWWD NO. 1 - MOORPARK
Public Water System ID:CA5610018
Population Served:72,139
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
CAL AMERICAN WATER CO
Public Water System ID:CA5610040
Population Served:66,809
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
THOUSAND OAKS WATER DEPT
Public Water System ID:CA5610020
Population Served:53,157
Primary Source:Surface 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).