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 |
|---|---|---|---|
| MR | Monitoring | Archived | 1997-04-01 → 1997-04-30 |
| MR | Monitoring | Archived | 1997-04-01 → 1997-04-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 291.9 µg/L 22% of the EPA limit 1300 µg/L
worst single sample: 442 µg/L | 30/30 | SYR4 | 2012–2018 |
| Lead | 6.8975 µg/L 46% of the EPA limit 15 µg/L
worst single sample: 7.24 µg/L | 24/30 | SYR4 | 2012–2018 |
| Lead | 0.0012 mg/L 7.7% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2024 |
| Nitrate-Nitrite | 2764 µg/L 28% of the EPA limit 10000 µg/L
worst single sample: 2800 µg/L | 9/9 | SYR4 | 2012–2019 |
| Bromodichloromethane | 8.887 µg/L No EPA limit set
worst single sample: 9.7 µg/L | 7/7 | SYR4 | 2014–2019 |
| Chloroform | 8.083 µg/L No EPA limit set
worst single sample: 9.16 µg/L | 7/7 | SYR4 | 2014–2019 |
| Dibromochloromethane | 6.575 µg/L No EPA limit set
worst single sample: 6.89 µg/L | 7/7 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 4.089 µg/L No EPA limit set
worst single sample: 4.38 µg/L | 7/7 | SYR4 | 2014–2019 |
| TTHM | 24.522 µg/L 31% of the EPA limit 80 µg/L
worst single sample: 26.76 µg/L | 7/7 | SYR4 | 2014–2019 |
| Total Haloacetic Acids (HAA5) | 8.568 µg/L 14% of the EPA limit 60 µg/L
worst single sample: 9.3 µg/L | 7/7 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 2.495 µg/L No EPA limit set
worst single sample: 2.54 µg/L | 6/7 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 2.255 µg/L No EPA limit set
worst single sample: 2.38 µg/L | 6/7 | SYR4 | 2014–2019 |
| Nitrate | 2800 µg/L 28% of the EPA limit 10000 µg/L | 4/4 | SYR4 | 2014–2017 |
| Bromoform | 0.9990 µg/L No EPA limit set
worst single sample: 1.01 µg/L | 3/7 | SYR4 | 2014–2019 |
| Combined Radium (-226 And -228) | 2.852 pCi/L 57% of the EPA limit 5 pCi/L
worst single sample: 3.04 pCi/L | 3/3 | SYR4 | 2012–2018 |
| Combined Uranium | 4.234 µg/L 14% of the EPA limit 30 µg/L
worst single sample: 4.35 µg/L | 3/3 | SYR4 | 2012–2018 |
| Gross Alpha, Excl. Radon And U | 6.5945 pCi/L 44% of the EPA limit 15 pCi/L
worst single sample: 6.87 pCi/L | 2/3 | SYR4 | 2012–2018 |
| Arsenic | 1.33 µg/L 13% of the EPA limit 10 µg/L | 1/1 | SYR4 | 2016 |
| Barium | 52.4 µg/L 2.6% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2017 |
| Chromium | 3.17 µg/L 3.2% of the EPA limit 100 µg/L | 1/1 | SYR4 | 2017 |
| Fluoride | 586 µg/L 15% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2017 |
| Selenium | 1.2 µg/L 2.4% of the EPA limit 50 µg/L | 1/1 | SYR4 | 2017 |
45 contaminants tested, none detected
Utility contact
Frequently asked questions about Tri-County Water District
Is Tri-County Water District tap water safe to drink?
EPA monitoring detected 22 contaminants in Tri-County Water District'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 Tri-County Water District's water?
EPA monitoring detected Copper, Lead, Lead, Nitrate-Nitrite, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Tri-County Water District serve?
Tri-County Water District reports serving 2,501 people in North Dakota, per its EPA record.
Has Tri-County Water District had any water quality violations?
The EPA has 2 violations on file for Tri-County Water District, 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.