Bakersfield Water Quality
California
According to EPA SDWIS, Bakersfield, California is served by 49 community water systems covering about 136,262 people. The same extract lists 630 health-based violation records, most recently coded 1005 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Bakersfield, California is delivered through 49 EPA-regulated community water systems serving an estimated 136,262 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 630 violation records across the 49 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 12 distinct EPA contaminant codes: Arsenic, Revised Total Coliform Rule, Nitrate, LEAD AND COPPER RULE REVISIONS, TTHM and 7 others. 23 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 |
|---|---|---|---|
| OILDALE MWC | 44,899 | 19 | Health |
| VAUGHN WC INC | 37,189 | 0 | Clean |
| EAST NILES CSD | 32,517 | 4 | Health |
| GREENFIELD COUNTY WD | 11,590 | 74 | Health |
| LERDO SHERIFF S FACILITY | 2,800 | 0 | Clean |
| VICTORY MUTUAL WATER COMPANY | 849 | 1 | Health |
| MOUNTAIN MESA WC | 777 | 0 | Clean |
| RIVERDALE VILLAGE | 750 | 1 | Health |
| BROCK MUTUAL WATER COMPANY | 462 | 34 | Health |
| STOCKDALE ANNEX MUTUAL WATER | 433 | 0 | Clean |
| STOCKDALE RANCHOS MUTUAL WATER CO | 393 | 2 | Health |
| ENOS LANE PUBLIC UTILITY DISTRICT | 365 | 12 | Health |
| STOCKDALE MUTUAL WATER CO. | 200 | 4 | Health |
| EL ADOBE POA, INC. | 200 | 29 | Health |
| MANON MANOR MUTUAL WATER COMPANY | 200 | 1 | Health |
| MUSTANG MUTUAL WATER SYSTEM | 200 | 3 | Health |
| ALLEN ROAD MUTUAL WATER SYSTEM | 195 | 0 | Clean |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | 165 | 52 | Health |
| ATHAL MUTUAL WATER SYSTEM | 150 | 1 | Health |
| HART CREEK ESTATES MUTUAL WATER CO. | 148 | 0 | Clean |
| MAHER MUTUAL WATER COMPANY | 140 | 98 | Health |
| HARVEST MOON MUTUAL WATER CO | 138 | 0 | Clean |
| LONG CANYON WATER COMPANY CORP. | 122 | 0 | Clean |
| ST. CLAIR RANCHOS MUTUAL WATER CO. | 105 | 0 | Clean |
| OASIS PROPERTY OWNERS ASSOCIATION | 100 | 14 | Health |
| METTLER COUNTY WATER DISTRICT | 90 | 39 | Health |
| GOOSELAKE WATER COMPANY | 90 | 11 | Health |
| UPLANDS OF THE KERN MUTUAL WATER COMPANY | 80 | 7 | Health |
| TOWN & COUNTRY WATER COMPANY | 73 | 0 | Clean |
| WILSON ROAD WATER COMMUNITY | 66 | 38 | Health |
| WEGIS MUTUAL WATER COMPANY | 64 | 8 | Health |
| RANCHOS DEL RIO | 62 | 2 | Health |
| HART FLAT BEAR MUTUAL WATER | 56 | 0 | Clean |
| THE ANNE SIPPI CLINIC-RIVERSIDE RANCH | 51 | 4 | Health |
| AGAPE MUTUAL WATER SYSTEM | 50 | 0 | Clean |
| ROUND MOUNTAIN WATER COMPANY | 50 | 66 | Health |
| GOSFORD ROAD WATER COMPANY | 50 | 3 | Health |
| PANAMA ROAD PROPERTY OWNERS ASSOC | 45 | 3 | Health |
| CHOCTAW VALLEY MUTUAL WATER CO. | 44 | 2 | Health |
| KRANENBURG WATER SYSTEM | 42 | 0 | Clean |
| RIVERVIEW HOMEOWNERS ASSOCIATION | 40 | 2 | Health |
| HEATH BRIMHALL P.O.A. | 39 | 0 | Clean |
| EAST WILSON ROAD WATER COMPANY | 35 | 32 | Health |
| NORD ROAD WATER ASSOCIATION | 32 | 47 | Health |
| MEADOWS OF THE KERN MUTUAL WATER COMPANY | 32 | 1 | Health |
| WINI MUTUAL WATER COMPANY | 29 | 14 | Health |
| NORTH KRANENBURG WS | 28 | 0 | Clean |
| SCHWEIKART WATER SYSTEM | 27 | 2 | Health |
| KERN COUNTY WATER AGENCY | 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 |
|---|---|---|
| EL ADOBE POA, INC. | Arsenic | 2025-10-01 |
| RANCHOS DEL RIO | Revised Total Coliform Rule | 2025-08-18 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2025-07-01 |
| EL ADOBE POA, INC. | Arsenic | 2025-07-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2025-04-01 |
| EL ADOBE POA, INC. | Arsenic | 2025-04-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2025-04-01 |
| RANCHOS DEL RIO | Revised Total Coliform Rule | 2025-02-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2025-01-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2025-01-01 |
| EAST NILES CSD | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| EAST WILSON ROAD WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| WEGIS MUTUAL WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| OASIS PROPERTY OWNERS ASSOCIATION | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| MANON MANOR MUTUAL WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| WILSON ROAD WATER COMMUNITY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| EL ADOBE POA, INC. | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| RIVERDALE VILLAGE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| METTLER COUNTY WATER DISTRICT | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2024-10-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2024-10-01 |
| EL ADOBE POA, INC. | Arsenic | 2024-10-01 |
| EL ADOBE POA, INC. | Arsenic | 2024-10-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2024-10-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2024-10-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2024-07-01 |
| OILDALE MWC | TTHM | 2024-04-01 |
| OILDALE MWC | TTHM | 2024-04-01 |
| OILDALE MWC | TTHM | 2024-04-01 |
| OILDALE MWC | TTHM | 2024-04-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2024-04-01 |
| OILDALE MWC | TTHM | 2024-01-01 |
| OILDALE MWC | TTHM | 2024-01-01 |
| OILDALE MWC | TTHM | 2024-01-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| EAST NILES CSD | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| EAST NILES CSD | Total Haloacetic Acids (HAA5) | 2024-01-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2024-01-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| EAST NILES CSD | Total Haloacetic Acids (HAA5) | 2023-10-01 |
| SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | Nitrate | 2023-10-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2023-10-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2023-10-01 |
| METTLER COUNTY WATER DISTRICT | Nitrate | 2023-10-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2023-07-01 |
| OILDALE MWC | Total Haloacetic Acids (HAA5) | 2023-07-01 |
What are Bakersfield's health-based records for?
Bakersfield's health-based violation records carry 8 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 |
|---|---|---|
| Arsenic | 243 | 7 |
| Nitrate | 185 | 7 |
| Coliform (TCR) | 85 | 24 |
| Combined Uranium | 61 | 1 |
| Nitrate-Nitrite | 17 | 4 |
| Total Haloacetic Acids (HAA5) | 12 | 2 |
| Lead and Copper Rule Revisions | 9 | 9 |
| Tthm | 7 | 1 |
TRI Facilities in Bakersfield
| Facility | Total Releases |
|---|---|
| Wm Bolthouse Farms Inc | 3.2M lbs |
| Frito Lay Inc. | 523.8K lbs |
| Containment Solutions Inc | 332.2K lbs |
| Baker Petrolite | 109.3K lbs |
| Kern Energy | 43.4K lbs |
| Bakersfield Renewable Fuels LLC - Areas 1 & 2 | 34.8K lbs |
| Ennis-Flint Bakersfield | 26.3K lbs |
| Nusil Technology LLC | 20.3K lbs |
| San Joaquin Refining Co Inc | 15.2K lbs |
| Dreyer's Grand Ice Cream | 13.1K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Bakersfield, California? ▼
How many water violations does Bakersfield have in this EPA extract? ▼
What contaminants were found in Bakersfield water? ▼
How many water systems serve Bakersfield? ▼
Where does Bakersfield get its drinking water? ▼
Are there pollution sources near Bakersfield? ▼
How does Bakersfield compare in California?
Of the 909 California places with at least one community water system on file, Bakersfield ranks #5 by number of systems (49).
Either side of it: San Jose (69), Salinas (55), Fresno (42), Santa Rosa (41)
About This Data
Figures here are the current EPA SDWIS extract joined to the 49 community water systems whose service area lists Bakersfield, 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.