What was found in ZIP 52257
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 | 600 µg/L 15% of the EPA limit 4000 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2013 | 1/1 | SYR4 |
| Nitrate | 500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Copper | 60.98 µg/L 4.7% of the EPA limit 1300 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| TTHM | 59.645 µg/L 75% of the EPA limit 80 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Chloroform | 42.005 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 34.8 µg/L 58% of the EPA limit 60 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Barium | 21.6 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2013 | 1/1 | SYR4 |
| Monochloroacetic Acid | 18.16 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 15.63 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.93 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 7.9165 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5.8575 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Lead | 4.425 µg/L 30% of the EPA limit 15 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Selenium | 3.2 µg/L 6.4% of the EPA limit 50 µg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2013 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.321 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.7480 µg/L No EPA limit set Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 people · 2019 | 1/1 | SYR4 |
| Lead | 0.00060 mg/L 4% of the EPA limit 0.0150 mg/L Main supplier: POWESHIEK WATER ASSOCIATION · 13,920 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 52257
| Supplier | State | Population served |
|---|---|---|
| POWESHIEK WATER ASSOCIATION | IA | 13,920 |
Frequently asked questions about ZIP 52257 tap water
Is the tap water in ZIP 52257 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 52257. 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 52257?
1 public water supplier report EPA drinking-water monitoring for ZIP 52257. Each is listed above with its population served.
What contaminants are in ZIP 52257's water?
EPA monitoring detected Fluoride, Nitrate, Copper, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.