What was found in ZIP 56701
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 |
|---|---|---|---|
| Fluoride | 1140 µg/L 28% of the EPA limit 4000 µg/L Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 650 µg/L 6.5% of the EPA limit 10000 µg/L Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Copper | 76.35 µg/L 5.9% of the EPA limit 1300 µg/L Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Chloroform | 74.65 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 50.55 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Lead | 9.9 µg/L 66% of the EPA limit 15 µg/L Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 6.86 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.2 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 5 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0120 µg/L No EPA limit set Main supplier: Thief River Falls · 8,701 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0070 mg/L 47% of the EPA limit 0.0150 mg/L Main supplier: Thief River Falls · 8,701 people · 2023 | 1/1 | 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 56701
| Supplier | State | Population served |
|---|---|---|
| Thief River Falls | MN | 8,701 |
Frequently asked questions about ZIP 56701 tap water
Is the tap water in ZIP 56701 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 56701. 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 56701?
1 public water supplier report EPA drinking-water monitoring for ZIP 56701. Each is listed above with its population served.
What contaminants are in ZIP 56701's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Copper, Chloroform, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.