What was found in ZIP 74421
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 |
|---|---|---|---|
| TTHM | 305 µg/L 381% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Chloroform | 264 µg/L No EPA limit set | 1/1 | SYR4 |
| Copper | 238 µg/L 18% of the EPA limit 1300 µg/L | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 133.4 µg/L 222% of the EPA limit, in the worst sample — 60 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 84.1 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 67.9 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 44.1 µg/L No EPA limit set | 1/1 | SYR4 |
| Lead | 40 µg/L 267% of the EPA limit, in the worst sample — 15 µg/L | 1/1 | SYR4 |
| Dibromochloromethane | 15.5 µg/L No EPA limit set | 1/1 | SYR4 |
| Monochloroacetic Acid | 7.5 µg/L No EPA limit set | 1/1 | SYR4 |
| Monobromoacetic Acid | 4.8 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.8 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromoform | 1.1 µg/L No EPA limit set | 1/1 | SYR4 |
| Pfba | 0.0069 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 74421
| Supplier | State | Population served |
|---|---|---|
| OKMULGEE CO. RWD #6 (HECTORVILLE) | OK | 8,370 |
Frequently asked questions about ZIP 74421 tap water
Is the tap water in ZIP 74421 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 74421. 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 74421?
1 public water supplier report EPA drinking-water monitoring for ZIP 74421. Each is listed above with its population served.
What contaminants are in ZIP 74421's water?
EPA monitoring detected TTHM, Chloroform, Copper, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.