Nichols Hills
PWSID OK2005501 · Nichols Hills, Oklahoma · serves 4,020 people · groundwater source
C
Fair
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | TTHM | MR | No | Resolved |
| 2025-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | TT | Yes | Resolved |
| 2024-10-17 | LEAD AND COPPER RULE REVISIONS | RPT | No | Resolved |
| 2024-01-01 | TTHM | MR | No | Resolved |
| 2024-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2024-01-01 | Nitrate-Nitrite | MR | No | Resolved |
| 2024-01-01 | Nitrate-Nitrite | MR | No | Resolved |
| 2024-01-01 | Endrin | MR | No | Resolved |
| 2024-01-01 | BHC-GAMMA | MR | No | Resolved |
| 2024-01-01 | Methoxychlor | MR | No | Resolved |
| 2024-01-01 | Toxaphene | MR | No | Resolved |
| 2024-01-01 | Dalapon | MR | No | Resolved |
| 2024-01-01 | Diquat | MR | No | Resolved |
| 2024-01-01 | Endothall | MR | No | Resolved |
| 2024-01-01 | Glyphosate | MR | No | Resolved |
| 2024-01-01 | Di(2-ethylhexyl) adipate | MR | No | Resolved |
| 2024-01-01 | OXAMYL | MR | No | Resolved |
| 2024-01-01 | Simazine | MR | No | Resolved |
| 2024-01-01 | Di(2-ethylhexyl) phthalate | MR | No | Resolved |
| 2024-01-01 | Picloram | MR | No | Resolved |
| 2024-01-01 | Dinoseb | MR | No | Resolved |
| 2024-01-01 | Hexachlorocyclopentadiene | MR | No | Resolved |
| 2024-01-01 | Carbofuran | MR | No | Resolved |
| 2024-01-01 | Atrazine | MR | No | Resolved |
| 2024-01-01 | LASSO | MR | No | Resolved |
| 2024-01-01 | Heptachlor | MR | No | Resolved |
| 2024-01-01 | Heptachlor epoxide | MR | No | Resolved |
| 2024-01-01 | 2,4-D | MR | No | Resolved |
| 2024-01-01 | 2,4,5-TP | MR | No | Resolved |
| 2024-01-01 | HEXACHLOROBENZENE | MR | No | Resolved |
| 2024-01-01 | Benzo(a)pyrene | MR | No | Resolved |
| 2024-01-01 | Pentachlorophenol | MR | No | Resolved |
| 2024-01-01 | Total Polychlorinated Biphenyls (PCB) | MR | No | Resolved |
| 2024-01-01 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | No | Resolved |
| 2024-01-01 | ETHYLENE DIBROMIDE | MR | No | Resolved |
| 2024-01-01 | Chlordane | MR | No | Resolved |
| 2023-10-02 | Consumer Confidence Rule | Other | No | Resolved |
| 2023-01-01 | Nitrate-Nitrite | MR | No | Resolved |
| 2023-01-01 | Endrin | MR | No | Resolved |
| 2023-01-01 | BHC-GAMMA | MR | No | Resolved |
| 2023-01-01 | Methoxychlor | MR | No | Resolved |
| 2023-01-01 | Toxaphene | MR | No | Resolved |
| 2023-01-01 | Dalapon | MR | No | Resolved |
| 2023-01-01 | Diquat | MR | No | Resolved |
| 2023-01-01 | Endothall | MR | No | Resolved |
| 2023-01-01 | Glyphosate | MR | No | Resolved |
| 2023-01-01 | Di(2-ethylhexyl) adipate | MR | No | Resolved |
| 2023-01-01 | OXAMYL | MR | No | Resolved |
| 2023-01-01 | Simazine | MR | No | Resolved |
| 2023-01-01 | Di(2-ethylhexyl) phthalate | MR | No | Resolved |
| 2023-01-01 | Picloram | MR | No | Resolved |
| 2023-01-01 | Dinoseb | MR | No | Resolved |
| 2023-01-01 | Hexachlorocyclopentadiene | MR | No | Resolved |
| 2023-01-01 | Carbofuran | MR | No | Resolved |
| 2023-01-01 | Atrazine | MR | No | Resolved |
| 2023-01-01 | LASSO | MR | No | Resolved |
| 2023-01-01 | Heptachlor | MR | No | Resolved |
| 2023-01-01 | Heptachlor epoxide | MR | No | Resolved |
| 2023-01-01 | 2,4-D | MR | No | Resolved |
| 2023-01-01 | 2,4,5-TP | MR | No | Resolved |
| 2023-01-01 | HEXACHLOROBENZENE | MR | No | Resolved |
| 2023-01-01 | Benzo(a)pyrene | MR | No | Resolved |
| 2023-01-01 | Pentachlorophenol | MR | No | Resolved |
| 2023-01-01 | Total Polychlorinated Biphenyls (PCB) | MR | No | Resolved |
| 2023-01-01 | 1,2-DIBROMO-3-CHLOROPROPANE | MR | No | Resolved |
| 2023-01-01 | ETHYLENE DIBROMIDE | MR | No | Resolved |
| 2023-01-01 | Chlordane | MR | No | Resolved |