What was found in ZIP 58251
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 790 µg/L 7.9% of the EPA limit 10000 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019 | 1/2 | SYR4 |
| Fluoride | 607 µg/L 15% of the EPA limit 4000 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 1/2 | SYR4 |
| Nitrate | 340 µg/L 3.4% of the EPA limit 10000 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2018 | 1/2 | SYR4 |
| Copper | 264.85 µg/L 20% of the EPA limit 1300 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 276.1 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Barium | 31 µg/L 1.6% of the EPA limit 2000 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 1/2 | SYR4 |
| TTHM | 9.981 µg/L 12% of the EPA limit 80 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 21.5955 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Lead | 7.854 µg/L 52% of the EPA limit 15 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 18 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.571 µg/L 6% of the EPA limit 60 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 9.7025 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 4.509 µg/L No EPA limit set Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 8.441 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 2.397 µg/L No EPA limit set Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 6.4465 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Chloroform | 0.8680 µg/L No EPA limit set Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 5.828 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 4.6 µg/L No EPA limit set Highest in the ZIP: LARIMORE CITY OF · 1,346 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 3.571 µg/L No EPA limit set Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 4.211 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Bromoform | 2.353 µg/L No EPA limit set Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019
Highest in the ZIP: 3.003 µg/L — LARIMORE CITY OF · 1,346 people · 2019 | 2/2 | SYR4 |
| Arsenic | 2.6 µg/L 26% of the EPA limit 10 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2016 | 1/2 | SYR4 |
| Dichloroacetic Acid | 2.585 µg/L No EPA limit set Highest in the ZIP: LARIMORE CITY OF · 1,346 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 2.151 µg/L No EPA limit set Highest in the ZIP: LARIMORE CITY OF · 1,346 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 2.08 µg/L 6.9% of the EPA limit 30 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 1/2 | SYR4 |
| Dinoseb | 0.5900 µg/L 8.4% of the EPA limit 7 µg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.4500 pCi/L 9% of the EPA limit 5 pCi/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 1/2 | SYR4 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2025 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 58251
| Supplier | State | Population served |
|---|---|---|
| AGASSIZ WATER USERS DISTRICT | ND | 3,438 |
| LARIMORE CITY OF | ND | 1,346 |
Frequently asked questions about ZIP 58251 tap water
Is the tap water in ZIP 58251 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 58251. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 58251?
2 public water suppliers report EPA drinking-water monitoring for ZIP 58251. Each is listed above with its population served.
What contaminants are in ZIP 58251's water?
EPA monitoring detected Nitrate-Nitrite, Fluoride, Nitrate, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.