What was found in ZIP 56716
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 | 1300 µg/L 33% of the EPA limit 4000 µg/L Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Copper | 755.4 µg/L 58% of the EPA limit 1300 µg/L Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 180 µg/L 1.8% of the EPA limit 10000 µg/L Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Barium | 134 µg/L 6.7% of the EPA limit 2000 µg/L Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Lithium | 13 µg/L No EPA limit set Main supplier: Crookston · 7,272 people · 2023 | 1/1 | UCMR-5 |
| Trichloroacetic Acid | 8.2 µg/L No EPA limit set Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Lead | 7.97 µg/L 53% of the EPA limit 15 µg/L Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 6.98 µg/L No EPA limit set Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Chloroform | 6.73 µg/L No EPA limit set Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.9 µg/L No EPA limit set Main supplier: Crookston · 7,272 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0170 mg/L 113% above the EPA limit of 0.0150 mg/L Main supplier: Crookston · 7,272 people · 2025 | 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 56716
| Supplier | State | Population served |
|---|---|---|
| Crookston | MN | 7,272 |
Frequently asked questions about ZIP 56716 tap water
Is the tap water in ZIP 56716 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 56716. 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 56716?
1 public water supplier report EPA drinking-water monitoring for ZIP 56716. Each is listed above with its population served.
What contaminants are in ZIP 56716's water?
EPA monitoring detected Fluoride, Copper, Nitrate-Nitrite, Barium, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.