What was found in ZIP 62358
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 | 7855 µg/L 79% of the EPA limit 10000 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 6750 µg/L 68% of the EPA limit 10000 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| Fluoride | 1236 µg/L 31% of the EPA limit 4000 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| Copper | 137.5 µg/L 11% of the EPA limit 1300 µg/L Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2018
Highest in the ZIP: 770 µg/L — DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 2/2 | SYR4 |
| Barium | 120 µg/L 6% of the EPA limit 2000 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| TTHM | 55.75 µg/L 70% of the EPA limit 80 µg/L Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Chloroform | 46.15 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 21.75 µg/L 36% of the EPA limit 60 µg/L Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Lithium | 16 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2024 | 1/2 | UCMR-5 |
| Lead | 15.75 µg/L 105% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2018 | 2/2 | SYR4 |
| Dichloroacetic Acid | 15 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 9.315 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 7.5 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 5.326 µg/L No EPA limit set Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 1/2 | SYR4 |
| Selenium | 4.28 µg/L 8.6% of the EPA limit 50 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| Dibromochloromethane | 3.4 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019
Highest in the ZIP: 4.199 µg/L — DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.9635 µg/L No EPA limit set Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.16 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2019
Highest in the ZIP: 1.89525 µg/L — DALLAS RURAL WATER DISTRICT · 6,370 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.59 µg/L 16% of the EPA limit 10 µg/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.7500 pCi/L 15% of the EPA limit 5 pCi/L Highest in the ZIP: DALLAS RURAL WATER DISTRICT · 6,370 people · 2018 | 1/2 | SYR4 |
| Pfba | 0.0120 µg/L No EPA limit set Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: RATHBUN REG WATER ASSN (FT MADISON) · 11,840 people · 2024 | 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 62358
| Supplier | State | Population served |
|---|---|---|
| RATHBUN REG WATER ASSN (FT MADISON) | IA | 11,840 |
| DALLAS RURAL WATER DISTRICT | IL | 6,370 |
Frequently asked questions about ZIP 62358 tap water
Is the tap water in ZIP 62358 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 62358. 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 62358?
2 public water suppliers report EPA drinking-water monitoring for ZIP 62358. Each is listed above with its population served.
What contaminants are in ZIP 62358's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.