West Covina Water Quality
California
According to EPA SDWIS, West Covina, California is served by 11 community water systems covering about 11,415 people. The same extract lists 14 health-based violation records, most recently coded 0800 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in West Covina, California is delivered through 11 EPA-regulated community water systems serving an estimated 11,415 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 14 violation records across the 11 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Long Term 2 Enhanced Surface Water Treatment Rule, Lead and Copper Rule, TTHM, Groundwater Rule. 1 TRI-reporting industrial facility is 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 |
|---|---|---|---|
| VALENCIA HEIGHTS WATER CO. | 7,775 | 0 | Clean |
| ARBOR VILLAGE | 670 | 7 | Health |
| MECKS WHISPERING PINES II LLC | 598 | 0 | Clean |
| SHERWOOD FOREST MHP PWS | 578 | 2 | Health |
| GUN RIVER MOBILE ESTATES | 415 | 0 | Clean |
| BRADY HILLS ML | 400 | 0 | Clean |
| ARROWHEAD LAKE MHP | 327 | 0 | Clean |
| RECREACRES MHC LLC | 320 | 1 | Health |
| SWANTON MEADOWS | 180 | 3 | Health |
| GUN RIVER ESTATES WEST | 152 | 1 | Health |
| COVINA VALLEY WATER COMPANY - WHOLESALE | 0 | 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 |
|---|---|---|
| SHERWOOD FOREST MHP PWS | Long Term 2 Enhanced Surface Water Treatment Rule | 2025-09-09 |
| SHERWOOD FOREST MHP PWS | Long Term 2 Enhanced Surface Water Treatment Rule | 2025-07-18 |
| ARBOR VILLAGE | Lead and Copper Rule | 2025-01-01 |
| SWANTON MEADOWS | TTHM | 2024-04-01 |
| SWANTON MEADOWS | TTHM | 2024-04-01 |
| SWANTON MEADOWS | TTHM | 2024-04-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2023-07-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2023-07-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2023-07-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2023-07-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2022-07-01 |
| ARBOR VILLAGE | Lead and Copper Rule | 2022-07-01 |
| GUN RIVER ESTATES WEST | Groundwater Rule | 2012-09-08 |
| RECREACRES MHC LLC | Lead and Copper Rule | 2007-01-01 |
What are West Covina's health-based records for?
West Covina'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 |
|---|---|---|
| Lead and Copper Rule | 8 | 2 |
| Tthm | 3 | 1 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 2 | 1 |
| Groundwater Rule | 1 | 1 |
TRI Facilities in West Covina
| Facility | Total Releases |
|---|---|
| Concorde/interspace Battery Corp | 15.8K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in West Covina, California? ▼
How many water violations does West Covina have in this EPA extract? ▼
What contaminants were found in West Covina water? ▼
How many water systems serve West Covina? ▼
Where does West Covina get its drinking water? ▼
Are there pollution sources near West Covina? ▼
How does West Covina compare in California?
Of the 909 California places with at least one community water system on file, West Covina ranks #45 by number of systems (11).
Either side of it: Paso Robles (11), Porterville (11), Alhambra (10), Auburn (10)
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists West Covina, 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.