Mountain Center Water Quality
California
According to EPA SDWIS, Mountain Center, California is served by 6 community water systems covering about 749 people. The same extract lists 32 health-based violation records, most recently coded 8000 in 2022. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Mountain Center, California is delivered through 6 EPA-regulated community water systems serving an estimated 749 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 32 violation records across the 6 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Revised Total Coliform Rule, Combined Uranium.
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 |
|---|---|---|---|
| PINYON PINES COUNTY WATER DIST | 232 | 0 | Clean |
| ALPINE VILLAGE | 198 | 31 | Health |
| THOMAS MOUNTAIN WATER COMPANY | 157 | 1 | Health |
| BALDY MOUNTAIN RANCH | 80 | 0 | Clean |
| TRAILS END MUTUAL WATER COMPANY | 52 | 0 | Clean |
| PARADISE VALLEY MWC | 30 | 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 |
|---|---|---|
| THOMAS MOUNTAIN WATER COMPANY | Revised Total Coliform Rule | 2022-10-23 |
| ALPINE VILLAGE | Combined Uranium | 2022-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2022-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2021-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2021-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2021-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2021-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2020-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2020-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2020-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2020-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2019-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2019-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2019-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2019-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2018-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2018-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2018-04-01 |
| ALPINE VILLAGE | Combined Uranium | 2018-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2017-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2017-04-01 |
| ALPINE VILLAGE | Revised Total Coliform Rule | 2017-02-01 |
| ALPINE VILLAGE | Combined Uranium | 2017-01-01 |
| ALPINE VILLAGE | Combined Uranium | 2016-10-01 |
| ALPINE VILLAGE | Combined Uranium | 2016-07-01 |
| ALPINE VILLAGE | Combined Uranium | 2016-06-01 |
| ALPINE VILLAGE | Combined Uranium | 2016-01-01 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Mountain Center, California? ▼
How many water violations does Mountain Center have in this EPA extract? ▼
What contaminants were found in Mountain Center water? ▼
How many water systems serve Mountain Center? ▼
Where does Mountain Center get its drinking water? ▼
How does Mountain Center compare in California?
Of the 912 California places with at least one community water system on file, Mountain Center ranks #107 by number of systems (6).
Either side of it: Kelseyville (6), Mendocino (6), Mt. Shasta (6), Palm Desert (6)
About This Data
Figures here are the current EPA SDWIS extract joined to the 6 community water systems whose service area lists Mountain Center, 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.