What was found in ZIP 58201
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 | 382 µg/L 3.8% of the EPA limit 10000 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019
Highest in the ZIP: 920 µg/L — EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2019 | 3/3 | SYR4 |
| Fluoride | 663 µg/L 17% of the EPA limit 4000 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2017
Highest in the ZIP: 844 µg/L — EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 3/3 | SYR4 |
| Nitrate | 800 µg/L 8% of the EPA limit 10000 µg/L Highest in the ZIP: EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 2/3 | SYR4 |
| Copper | 93 µg/L 7.2% of the EPA limit 1300 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2017
Highest in the ZIP: 407.45 µg/L — EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 3/3 | SYR4 |
| TTHM | 58.0025 µg/L 73% of the EPA limit 80 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 3/3 | SYR4 |
| Chloroform | 55.414 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33.5685 µg/L 56% of the EPA limit 60 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 3/3 | SYR4 |
| Barium | 15.9 µg/L 0.8% of the EPA limit 2000 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2017
Highest in the ZIP: 31 µg/L — AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 3/3 | SYR4 |
| Dichloroacetic Acid | 27.355 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 1/3 | SYR4 |
| Lithium | 21.3 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2024 | 1/3 | UCMR-5 |
| Dibromoacetic Acid | 17.256 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 3/3 | SYR4 |
| Lead | 13.8 µg/L 92% of the EPA limit 15 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2017 | 3/3 | SYR4 |
| Trichloroacetic Acid | 6.1695 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 1.096 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019
Highest in the ZIP: 4.509 µg/L — AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 4.05 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.9195 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2019 | 1/3 | SYR4 |
| Arsenic | 1.09 µg/L 11% of the EPA limit 10 µg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2016
Highest in the ZIP: 2.6 µg/L — AGASSIZ WATER USERS DISTRICT · 3,438 people · 2016 | 2/3 | SYR4 |
| Bromoform | 2.353 µg/L No EPA limit set Highest in the ZIP: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 2.08 µg/L 6.9% of the EPA limit 30 µg/L Highest in the ZIP: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2017 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.1 pCi/L 7.3% of the EPA limit 15 pCi/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2018
Highest in the ZIP: 2 pCi/L — EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.2900 pCi/L 5.8% of the EPA limit 5 pCi/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2018
Highest in the ZIP: 1.25 pCi/L — EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 3/3 | SYR4 |
| Chromium | 1.14 µg/L 1.1% of the EPA limit 100 µg/L Highest in the ZIP: EAST CENTRAL REGIONAL WD-GF · 5,995 people · 2017 | 1/3 | SYR4 |
| Dinoseb | 0.5900 µg/L 8.4% of the EPA limit 7 µg/L Highest in the ZIP: AGASSIZ WATER USERS DISTRICT · 3,438 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0104 µg/L No EPA limit set Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0089 mg/L 59% of the EPA limit 0.0150 mg/L Main supplier: GRAND FORKS REGIONAL WTP · 57,339 people · 2024 | 3/3 | 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 58201
| Supplier | State | Population served |
|---|---|---|
| GRAND FORKS REGIONAL WTP | ND | 57,339 |
| EAST CENTRAL REGIONAL WD-GF | ND | 5,995 |
| AGASSIZ WATER USERS DISTRICT | ND | 3,438 |
Frequently asked questions about ZIP 58201 tap water
Is the tap water in ZIP 58201 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 58201. 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 58201?
3 public water suppliers report EPA drinking-water monitoring for ZIP 58201. Each is listed above with its population served.
What contaminants are in ZIP 58201's water?
EPA monitoring detected Nitrate-Nitrite, Fluoride, Nitrate, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.