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Public water system record

Ventura River Water District

Serves Oak View, Mira Monte and Ojai, Ventura County, CA · 6,100 people served

Federal records show 3 health-based violations and no monitoring/reporting issues for Ventura River Water District in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • CA5610022
  • OJAI
  • CA
  • 6,100 served

System profile

Source water Purchased surface water
ZIP 93023
EPA system ID CA5610022

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
3
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Ventura River Water District draws water from 5 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit), 2023.
  • Most recent formal enforcement: compliance order (no penalty) by California, February 2024.
  • Record on file since 2008, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 2,206 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Oct 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jul 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jan 1, 2020 Resolved No

Full record since 2008

EPA's records for Ventura River Water District go back to 2008. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 1 0
2010 to October 18, 2016 1 0
2020s 3 0

Most recent health-based violation before October 19, 2016: Total Coliform, began August 2015, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Aug 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 2008 Resolved

Enforcement actions

California regulators took 4 formal enforcement actions against Ventura River Water District between 2008 and 2024. The most recent was a compliance order (no penalty) in February 2024.

Date By Action Violations covered
Feb 27, 2024 California Compliance order (no penalty) 2 violations (2 health-based): Haloacetic Acids (HAA5)
Apr 28, 2020 California Compliance order (no penalty) 1 violation (1 health-based): Haloacetic Acids (HAA5)
Dec 7, 2015 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Oct 1, 2008 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform

What the violations mean

Haloacetic Acids (HAA5)

3 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Ventura River Water District draws water from 5 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from Casitas Municipal Water Dist. 1 other public water system has an emergency connection to Ventura River Water District.

Buys water from

Annual water quality report

Ventura River 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.

Certified drinking water labs by state EPA guidance for private wells