What was found in ZIP 52640
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 140 µg/L 11% of the EPA limit 1300 µg/L | 1/1 | SYR4 |
| TTHM | 100 µg/L 125% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Chloroform | 87 µg/L No EPA limit set | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42 µg/L 70% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Dichloroacetic Acid | 32 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 16 µg/L No EPA limit set | 1/1 | SYR4 |
| Lead | 13 µg/L 87% of the EPA limit 15 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 10 µg/L No EPA limit set | 1/1 | SYR4 |
| Lithium | 9.2 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Dibromochloromethane | 4.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Monochloroacetic Acid | 3 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 0.9000 µg/L No EPA limit set | 1/1 | SYR4 |
| Pfba | 0.0320 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Pfpea | 0.0130 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 52640
| Supplier | State | Population served |
|---|---|---|
| RATHBUN REG WTR ASSN (BURLINGTON) | IA | 8,375 |
Frequently asked questions about ZIP 52640 tap water
Is the tap water in ZIP 52640 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 52640. 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 52640?
1 public water supplier report EPA drinking-water monitoring for ZIP 52640. Each is listed above with its population served.
What contaminants are in ZIP 52640's water?
EPA monitoring detected Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.