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 | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-07-01 → 2017-09-30 |
| MCL | Health-based | Resolved | 2017-04-01 → 2017-06-30 |
| MCL | Health-based | Resolved | 2017-04-01 → 2017-06-30 |
| MCL | Health-based | Resolved | 2017-04-01 → 2017-06-30 |
| MCL | Health-based | Resolved | 2017-04-01 → 2017-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 2020 µg/L 155% of the EPA limit, in the worst sample — 1300 µg/L | 33/41 | SYR4 | 2012–2018 |
| Arsenic | 19 µg/L 190% of the EPA limit, in the worst sample — 10 µg/L | 32/80 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1070 µg/L 11% of the EPA limit 10000 µg/L | 18/18 | SYR4 | 2012–2019 |
| Lead | 4 µg/L 27% of the EPA limit 15 µg/L | 17/41 | SYR4 | 2012–2018 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2024 |
| Dibromochloromethane | 2.4 µg/L No EPA limit set | 5/7 | SYR4 | 2012–2019 |
| TTHM | 5.2 µg/L 6.5% of the EPA limit 80 µg/L | 5/7 | SYR4 | 2012–2019 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L | 3/3 | SYR4 | 2013–2019 |
| Bromodichloromethane | 1.6 µg/L No EPA limit set | 2/7 | SYR4 | 2012–2019 |
| Bromoform | 1 µg/L No EPA limit set | 2/7 | SYR4 | 2012–2019 |
| Combined Uranium | 5 µg/L 17% of the EPA limit 30 µg/L | 2/2 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.2 µg/L No EPA limit set | 2/3 | SYR4 | 2013–2017 |
| Total Haloacetic Acids (HAA5) | 2.8 µg/L 4.7% of the EPA limit 60 µg/L | 2/3 | SYR4 | 2013–2017 |
| Barium | 70 µg/L 3.5% of the EPA limit 2000 µg/L | 1/3 | SYR4 | 2013–2019 |
| Chloroform | 0.5500 µg/L No EPA limit set | 1/7 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.6 µg/L No EPA limit set | 1/3 | SYR4 | 2013–2017 |
| Gross Alpha, Excl. Radon And U | 4 pCi/L 27% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2013 |
| Gross Beta Particle Activity | 8.4 pCi/L No EPA limit set | 1/1 | SYR4 | 2013 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L | 1/3 | SYR4 | 2013–2019 |
54 contaminants tested, none detected
Utility contact
Frequently asked questions about Blue Cloud Subdivision
Is Blue Cloud Subdivision tap water safe to drink?
EPA monitoring detected 19 contaminants in Blue Cloud Subdivision'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 Blue Cloud Subdivision's water?
EPA monitoring detected Copper, Arsenic, Nitrate-Nitrite, Lead, Lead, and others. The full list with the level and data source for each is above.
How many people does Blue Cloud Subdivision serve?
Blue Cloud Subdivision reports serving 60 people in Montana, per its EPA record.
Has Blue Cloud Subdivision had any water quality violations?
The EPA has 352 violations on file for Blue Cloud Subdivision, of which 152 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.