What was found in Belcourt's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 2130 µg/L 53% of the EPA limit 4000 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2013 | 1/1 | SYR4 |
| Copper | 1610 µg/L 124% of the EPA limit, at the 95th percentile of samples — 1300 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1060 µg/L 11% of the EPA limit 10000 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Lithium | 89.4 µg/L No EPA limit set Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2024 | 1/1 | UCMR-5 |
| TTHM | 84.467 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.595 µg/L 96% of the EPA limit 60 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Barium | 37.9 µg/L 1.9% of the EPA limit 2000 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2013 | 1/1 | SYR4 |
| Lead | 11.6 µg/L 77% of the EPA limit 15 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Cyanide | 9.8 µg/L 4.9% of the EPA limit 200 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 4.023 µg/L 13% of the EPA limit 30 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2015 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.9 pCi/L 19% of the EPA limit 15 pCi/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2015 | 1/1 | SYR4 |
| Chromium | 1.36 µg/L 1.4% of the EPA limit 100 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2013 | 1/1 | SYR4 |
| Arsenic | 1.23 µg/L 12% of the EPA limit 10 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2013 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.13 pCi/L 23% of the EPA limit 5 pCi/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2015 | 1/1 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2013 | 1/1 | SYR4 |
| Lead | 0.0017 mg/L 11% of the EPA limit 0.0150 mg/L Main supplier: BELCOURT-TURTLE MTN RURAL WATER SYSTEM · 13,500 people · 2026 | 1/1 | LCR |
Water suppliers serving Belcourt
| Supplier | Population served |
|---|---|
| BELCOURT-TURTLE MTN RURAL WATER SYSTEM | 13,500 |
Frequently asked questions about Belcourt tap water
Is Belcourt tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Belcourt. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Belcourt?
1 public water supplier report drinking-water monitoring for Belcourt, North Dakota to the EPA. Each is listed above with its population served.
What contaminants are in Belcourt's water?
The contaminants EPA monitoring detected in Belcourt include Fluoride, Copper, Nitrate-Nitrite, Lithium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
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.