What was found in ZIP 52577
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 | 1800 µg/L 18% of the EPA limit 10000 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Fluoride | 220 µg/L 5.5% of the EPA limit 4000 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2013
Highest in the ZIP: 1000 µg/L — MAHASKA RURAL WATER SYSTEM, INC. · 9,818 people · 2019 | 2/2 | SYR4 |
| TTHM | 60.87 µg/L 76% of the EPA limit 80 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Copper | 40 µg/L 3.1% of the EPA limit 1300 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Chloroform | 37.07 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.66 µg/L 38% of the EPA limit 60 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019
Highest in the ZIP: 23.6 µg/L — MAHASKA RURAL WATER SYSTEM, INC. · 9,818 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 17 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 10.106 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019
Highest in the ZIP: 14.24 µg/L — MAHASKA RURAL WATER SYSTEM, INC. · 9,818 people · 2019 | 2/2 | SYR4 |
| Lithium | 14 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2025 | 1/2 | UCMR-5 |
| Lead | 12.39 µg/L 83% of the EPA limit 15 µg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 10.805 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 10.52 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 7.278 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 4.275 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.0715 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Bromoform | 2.855 µg/L No EPA limit set Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L Main supplier: OSKALOOSA MUNICIPAL WATER DEPT · 12,808 people · 2025 | 2/2 | 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 52577
| Supplier | State | Population served |
|---|---|---|
| OSKALOOSA MUNICIPAL WATER DEPT | IA | 12,808 |
| MAHASKA RURAL WATER SYSTEM, INC. | IA | 9,818 |
Frequently asked questions about ZIP 52577 tap water
Is the tap water in ZIP 52577 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 52577. 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 52577?
2 public water suppliers report EPA drinking-water monitoring for ZIP 52577. Each is listed above with its population served.
What contaminants are in ZIP 52577's water?
EPA monitoring detected Nitrate, Fluoride, TTHM, Copper, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.