What was found in ZIP 56270
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 |
|---|---|---|---|
| Copper | 1300 µg/L 100% of the EPA limit 1300 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2019 | 1/1 | SYR4 |
| Nitrate | 1210 µg/L 12% of the EPA limit 10000 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2018 | 1/1 | SYR4 |
| Nitrate-Nitrite | 780 µg/L 7.8% of the EPA limit 10000 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2017 | 1/1 | SYR4 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2018 | 1/1 | SYR4 |
| Lead | 84.8 µg/L 565% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 77.5 µg/L No EPA limit set Main supplier: LOWER SIOUX · 4,000 people · 2024 | 1/1 | UCMR-5 |
| Barium | 29 µg/L 1.5% of the EPA limit 2000 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2018 | 1/1 | SYR4 |
| Nitrite | 20 µg/L 2% of the EPA limit 1000 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2017 | 1/1 | SYR4 |
| TTHM | 2.9 µg/L 3.6% of the EPA limit 80 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.925 µg/L 3.2% of the EPA limit 60 µg/L Main supplier: LOWER SIOUX · 4,000 people · 2018 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.58 pCi/L 32% of the EPA limit 5 pCi/L Main supplier: LOWER SIOUX · 4,000 people · 2013 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.6700 pCi/L 4.5% of the EPA limit 15 pCi/L Main supplier: LOWER SIOUX · 4,000 people · 2013 | 1/1 | SYR4 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: LOWER SIOUX · 4,000 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 56270
| Supplier | State | Population served |
|---|---|---|
| LOWER SIOUX | MN | 4,000 |
Frequently asked questions about ZIP 56270 tap water
Is the tap water in ZIP 56270 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 56270. 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 56270?
1 public water supplier report EPA drinking-water monitoring for ZIP 56270. Each is listed above with its population served.
What contaminants are in ZIP 56270's water?
EPA monitoring detected Copper, Nitrate, Nitrate-Nitrite, Fluoride, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.