Ventura Water Quality
California
According to EPA SDWIS, Ventura, California is served by 4 community water systems covering about 113,816 people. The same extract lists 20 health-based violation records, most recently coded 1045 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Ventura, California is delivered through 4 EPA-regulated community water systems serving an estimated 113,816 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 20 violation records across the 4 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Selenium, Total Haloacetic Acids (HAA5), TTHM, Stage 1 Disinfectants and Disinfection Byproducts Rule. 3 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the California drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| VENTURA WATER DEPARTMENT | 113,500 | 2 | Health |
| SATICOY COUNTRY CLUB-CITY OF VENTURA | 196 | 1 | Health |
| SHADY GROVE MOBILE HOME PARK, LLC | 95 | 0 | Clean |
| RINCON WATER & ROAD WORKS | 25 | 17 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SATICOY COUNTRY CLUB-CITY OF VENTURA | Selenium | 2025-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-07-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-07-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-07-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-04-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-04-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-04-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2023-01-01 |
| RINCON WATER & ROAD WORKS | Total Haloacetic Acids (HAA5) | 2020-04-01 |
| VENTURA WATER DEPARTMENT | TTHM | 2018-07-01 |
| VENTURA WATER DEPARTMENT | TTHM | 2018-07-01 |
| RINCON WATER & ROAD WORKS | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2010-08-02 |
TRI Facilities in Ventura
| Facility | Total Releases |
|---|---|
| Valex Corp | 1.9K lbs |
| Magnuson Superchargers | 5 lbs |
| Dairy Farmers of America Inc. Ventura | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Ventura, California? ▼
How many water violations does Ventura have in this EPA extract? ▼
What contaminants were found in Ventura water? ▼
How many water systems serve Ventura? ▼
Where does Ventura get its drinking water? ▼
Are there pollution sources near Ventura? ▼
How does Ventura compare in California?
Of the 912 California places with at least one community water system on file, Ventura ranks #214 by number of systems (4).
Either side of it: Upper Lake (4), Valley Springs (4), Wofford Heights (4), Yosemite Np (4)
About This Data
Figures here are the current EPA SDWIS extract joined to the 4 community water systems whose service area lists Ventura, ranked against the 912 California places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.