Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| Other | Monitoring | Resolved | 2023-10-01 |
| Other | Monitoring | Resolved | 2023-10-01 |
| Other | Monitoring | Resolved | 2023-07-01 |
| Other | Monitoring | Resolved | 2023-07-01 |
| Other | Monitoring | Resolved | 2021-07-01 |
| Other | Monitoring | Resolved | 2021-07-01 |
| MR | Monitoring | Resolved | 2019-10-18 |
| MR | Monitoring | Resolved | 2019-10-18 |
| MR | Monitoring | Resolved | 2019-10-18 |
| MR | Monitoring | Resolved | 2019-10-18 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 4600 µg/L 46% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2023 |
| Copper | 41 µg/L 3.2% of the EPA limit 1300 µg/L | 9/11 | SYR4 | 2013–2017 |
| Arsenic | 3 µg/L 30% of the EPA limit 10 µg/L | 2/2 | SYR4 | 2013–2017 |
| Barium | 100 µg/L 5% of the EPA limit 2000 µg/L | 2/2 | SYR4 | 2013–2017 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L | 2/2 | SYR4 | 2013–2017 |
| Combined Radium (-226 And -228) | 0.8000 pCi/L 16% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2017 |
| Combined Uranium | 4 µg/L 13% of the EPA limit 30 µg/L | 1/1 | SYR4 | 2017 |
| Gross Alpha, Excl. Radon And U | 7 pCi/L 47% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2017 |
| Lead | 3 µg/L 20% of the EPA limit 15 µg/L | 1/11 | SYR4 | 2013–2017 |
56 contaminants tested, none detected
Utility contact
Frequently asked questions about Cooney Enterprises
Is Cooney Enterprises tap water safe to drink?
EPA monitoring detected 10 contaminants in Cooney Enterprises's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Cooney Enterprises's water?
EPA monitoring detected Nitrate-Nitrite, Lead, Copper, Arsenic, Barium, and others. The full list with the level and data source for each is above.
How many people does Cooney Enterprises serve?
Cooney Enterprises reports serving 50 people in Montana, per its EPA record.
Has Cooney Enterprises had any water quality violations?
The EPA has 348 violations on file for Cooney Enterprises, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.