What was found in ZIP 74604
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 |
|---|---|---|---|
| Fluoride | 1140 µg/L 28% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| Nitrate-Nitrite | 1010 µg/L 10% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Copper | 833 µg/L 64% of the EPA limit 1300 µg/L | 1/1 | SYR4 |
| TTHM | 92.1 µg/L 115% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Barium | 92 µg/L 4.6% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| Bromoform | 39.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Dibromochloromethane | 35.8 µg/L No EPA limit set | 1/1 | SYR4 |
| Bromodichloromethane | 27.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Chloroform | 24.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Lithium | 19.4 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 17 µg/L 28% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Gross Beta Particle Activity | 11.4 pCi/L No EPA limit set | 1/1 | SYR4 |
| Dibromoacetic Acid | 10.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 7.81 µg/L No EPA limit set | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.95 pCi/L 40% of the EPA limit 15 pCi/L | 1/1 | SYR4 |
| Selenium | 5.4 µg/L 11% of the EPA limit 50 µg/L | 1/1 | SYR4 |
| Combined Uranium | 3.11 µg/L 10% of the EPA limit 30 µg/L | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.59 µg/L No EPA limit set | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.05 µg/L No EPA limit set | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.46 pCi/L 29% of the EPA limit 5 pCi/L | 1/1 | SYR4 |
| Dichloromethane | 0.5800 µg/L 12% of the EPA limit 5 µg/L | 1/1 | SYR4 |
| PFOS | 0.0081 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFHXS | 0.0067 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFBS | 0.0053 µg/L No EPA limit set | 1/1 | UCMR-5 |
| 9Cl-PF3ONS | 0.0034 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 74604
| Supplier | State | Population served |
|---|---|---|
| PONCA CITY MUN WATER | OK | 27,155 |
Frequently asked questions about ZIP 74604 tap water
Is the tap water in ZIP 74604 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 74604. 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 74604?
1 public water supplier report EPA drinking-water monitoring for ZIP 74604. Each is listed above with its population served.
What contaminants are in ZIP 74604's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Copper, TTHM, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.