Visalia Water Quality
California
According to EPA SDWIS, Visalia, California is served by 12 community water systems covering about 4,668 people. The same extract lists 73 health-based violation records, most recently coded 1040 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Visalia, California is delivered through 12 EPA-regulated community water systems serving an estimated 4,668 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 73 violation records across the 12 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Nitrate, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule, Coliform (TCR). 8 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 |
|---|---|---|---|
| LINNELL FARM LABOR CENTER | 694 | 0 | Clean |
| SEVILLE WATER COMPANY | 691 | 1 | Health |
| WOODVILLE FARM LABOR CENTER | 650 | 0 | Clean |
| PATTERSON TRACT CSD | 550 | 0 | Clean |
| THE LAKES ASSOCIATION | 495 | 0 | Clean |
| EAST OROSI COMMUNITY SERVICES DISTRICT | 423 | 55 | Health |
| DELFT COLONY WATER | 412 | 0 | Clean |
| YETTEM WATER SYSTEM | 350 | 2 | Health |
| BEDEL MUTUAL WATER COMPANY | 155 | 0 | Clean |
| SUNRISE MUTUAL WATER CO. | 109 | 1 | Health |
| YOKOHL MUTUAL WATER CO | 95 | 14 | Health |
| MOUNTAIN VIEW MHP | 44 | 0 | Clean |
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 |
|---|---|---|
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-04-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2025-04-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2025-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2025-01-01 |
| YETTEM WATER SYSTEM | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SUNRISE MUTUAL WATER CO. | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YOKOHL MUTUAL WATER CO | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SEVILLE WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-07-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2024-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2024-04-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-04-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2024-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2024-01-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-01-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2024-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-10-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2023-10-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2023-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-07-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2023-07-01 |
| YOKOHL MUTUAL WATER CO | Nitrate | 2023-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2023-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-10-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2022-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2021-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2021-04-01 |
| YOKOHL MUTUAL WATER CO | Revised Total Coliform Rule | 2020-01-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2019-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2019-07-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2019-04-01 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | Nitrate | 2019-04-01 |
What are Visalia's health-based records for?
Visalia's health-based violation records carry 4 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Nitrate | 67 | 2 |
| Lead and Copper Rule Revisions | 4 | 4 |
| Coliform (TCR) | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
TRI Facilities in Visalia
| Facility | Total Releases |
|---|---|
| Pinnacle Premix | 508.6K lbs |
| California Dairies Inc Visalia | 171.8K lbs |
| Bluescope Buildings N.a. Inc | 42.7K lbs |
| Voltage Multipliers Inc. | 36.6K lbs |
| Actus Nutrition - Visalia | 7.6K lbs |
| Kawneer Co Inc | 4.0K lbs |
| Hydrite Chemical Co | 46 lbs |
| Univar Solutions USA | 5 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Visalia, California? ▼
How many water violations does Visalia have in this EPA extract? ▼
What contaminants were found in Visalia water? ▼
How many water systems serve Visalia? ▼
Where does Visalia get its drinking water? ▼
Are there pollution sources near Visalia? ▼
How does Visalia compare in California?
Of the 909 California places with at least one community water system on file, Visalia ranks #38 by number of systems (12).
Either side of it: Three Rivers (12), Vacaville (12), Anaheim (11), Big Sur (11)
About This Data
Figures here are the current EPA SDWIS extract joined to the 12 community water systems whose service area lists Visalia, ranked against the 909 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.