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 | 2006-01-01 → 2006-03-31 |
| MCL | Health-based | Resolved | 2006-01-01 → 2006-03-31 |
| MCL | Health-based | Resolved | 2006-01-01 → 2006-03-31 |
| MCL | Health-based | Resolved | 2006-01-01 → 2006-03-31 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
| MCL | Health-based | Resolved | 2005-07-01 → 2005-09-30 |
| MCL | Health-based | Resolved | 2005-07-01 → 2005-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 203.25 µg/L 16% of the EPA limit 1300 µg/L
worst single sample: 264 µg/L | 30/30 | SYR4 | 2012–2018 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 22/22 | LCR | 2025 |
| Bromodichloromethane | 11.3905 µg/L No EPA limit set
worst single sample: 12.97 µg/L | 10/10 | SYR4 | 2012–2019 |
| Bromoform | 23.576 µg/L No EPA limit set
worst single sample: 28.22 µg/L | 10/10 | SYR4 | 2012–2019 |
| Chloroform | 7.2345 µg/L No EPA limit set
worst single sample: 7.59 µg/L | 10/10 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 9.6915 µg/L No EPA limit set
worst single sample: 10.2 µg/L | 10/10 | SYR4 | 2012–2019 |
| Dibromochloromethane | 17.7595 µg/L No EPA limit set
worst single sample: 18.79 µg/L | 10/10 | SYR4 | 2012–2019 |
| TTHM | 51.188 µg/L 64% of the EPA limit 80 µg/L
worst single sample: 55.22 µg/L | 10/10 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22.2085 µg/L 37% of the EPA limit 60 µg/L
worst single sample: 25.66 µg/L | 10/10 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 9.191 µg/L No EPA limit set
worst single sample: 9.52 µg/L | 8/10 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 50 µg/L 0.5% of the EPA limit 10000 µg/L | 8/16 | SYR4 | 2012–2019 |
| Lead | 1.465 µg/L 9.8% of the EPA limit 15 µg/L
worst single sample: 1.55 µg/L | 6/30 | SYR4 | 2012–2018 |
| Trichloroacetic Acid | 2.29 µg/L No EPA limit set
worst single sample: 2.32 µg/L | 5/10 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.0385 µg/L No EPA limit set
worst single sample: 1.04 µg/L | 2/10 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 5.6185 µg/L No EPA limit set
worst single sample: 5.64 µg/L | 2/10 | SYR4 | 2012–2019 |
| Arsenic | 1.04 µg/L 10% of the EPA limit 10 µg/L | 1/1 | SYR4 | 2016 |
| Barium | 427 µg/L 21% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2016 |
| Fluoride | 1400 µg/L 35% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2016 |
| Selenium | 5.44 µg/L 11% of the EPA limit 50 µg/L | 1/1 | SYR4 | 2016 |
46 contaminants tested, none detected
Utility contact
Frequently asked questions about Upper Souris Water District-System I
Is Upper Souris Water District-System I tap water safe to drink?
EPA monitoring detected 19 contaminants in Upper Souris Water District-System I'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 Upper Souris Water District-System I's water?
EPA monitoring detected Copper, Lead, Bromodichloromethane, Bromoform, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Upper Souris Water District-System I serve?
Upper Souris Water District-System I reports serving 1,296 people in North Dakota, per its EPA record.
Has Upper Souris Water District-System I had any water quality violations?
The EPA has 44 violations on file for Upper Souris Water District-System I, of which 43 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.