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 |
|---|---|---|---|
| MCL | Health-based | Resolved | 2010-09-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-09-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-09-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-09-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-09-01 → 2010-09-30 |
| MCL | Health-based | Archived | 2001-04-01 → 2001-04-30 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-01-31 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-01-31 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-01-31 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-01-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 1460 µg/L 15% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Copper | 210 µg/L 16% of the EPA limit 1300 µg/L | 15/15 | SYR4 | 2013–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2022 |
| Nitrate | 1020 µg/L 10% of the EPA limit 10000 µg/L | 12/12 | SYR4 | 2012–2019 |
| Barium | 100 µg/L 5% of the EPA limit 2000 µg/L | 6/6 | SYR4 | 2012–2019 |
| Fluoride | 190 µg/L 4.8% of the EPA limit 4000 µg/L | 6/6 | SYR4 | 2012–2019 |
| Lead | 3 µg/L 20% of the EPA limit 15 µg/L | 3/15 | SYR4 | 2013–2019 |
| Combined Uranium | 2 µg/L 6.7% of the EPA limit 30 µg/L | 2/2 | SYR4 | 2016 |
| Gross Alpha, Excl. Radon And U | 2.3 pCi/L 15% of the EPA limit 15 pCi/L | 2/2 | SYR4 | 2016 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about Country Estates Water Supply
Is Country Estates Water Supply tap water safe to drink?
EPA monitoring detected 9 contaminants in Country Estates Water Supply'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 Country Estates Water Supply's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Lead, Nitrate, Barium, and others. The full list with the level and data source for each is above.
How many people does Country Estates Water Supply serve?
Country Estates Water Supply reports serving 490 people in Montana, per its EPA record.
Has Country Estates Water Supply had any water quality violations?
The EPA has 108 violations on file for Country Estates Water Supply, of which 10 are health-based (a contaminant limit or required treatment was breached) and 2 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.