Tuolumne - Black Oak Casino
California — Non-Transient Non-Community — PWSID: 090605149
System Information
| PWSID | 090605149 |
| System Name | Tuolumne - Black Oak Casino |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jul 2, 2002 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | California |
| City | Tuolumne |
| ZIP Code | 95379 |
| Address | P.O. Box 699 |
| Organization | Tuolumne Me-Wuk Tribal Council |
| Phone | 2099283475 |
Population & Service
| Population Served | 2,600 |
| Service Connections | 1 |
Drinking Water Violations (31)
This water system has 31 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Dec 1, 2022 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Jan 26, 2023 | Revised Total Coliform Rule |
| Aug 1, 2022 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Oct 7, 2022 | Revised Total Coliform Rule |
| Oct 1, 2021 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Nov 18, 2021 | Revised Total Coliform Rule |
| Jan 1, 2017 | Dec 31, 2019 | Di(2-ethylhexyl) phthalate | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Dec 31, 2019 | Synthetic Organic Chemicals |
| Jan 1, 2017 | Dec 31, 2019 | Di(2-ethylhexyl) adipate | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Dec 31, 2019 | Synthetic Organic Chemicals |
| Jan 1, 2017 | Dec 31, 2019 | Benzo(a)pyrene | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2019 | Synthetic Organic Chemicals |
| Jan 1, 2017 | Dec 31, 2019 | ETHYLENE DIBROMIDE | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Dec 31, 2019 | Synthetic Organic Chemicals |
| Jan 1, 2017 | Dec 31, 2019 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2019 | Synthetic Organic Chemicals |
| Jan 1, 2015 | Dec 31, 2015 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2015 | Nitrate Rule |
| Jan 1, 2014 | Dec 31, 2016 | Picloram | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Dec 31, 2016 | Synthetic Organic Chemicals |
| Jan 1, 2014 | Dec 31, 2016 | Pentachlorophenol | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2016 | Synthetic Organic Chemicals |
| Jan 1, 2004 | Dec 31, 2004 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Dec 31, 2004 | Radionuclides and Revised Rad Rule |
| Jan 1, 2004 | Dec 31, 2004 | Total Polychlorinated Biphenyls (PCB) | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2004 | Synthetic Organic Chemicals |
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About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.