What was found in ZIP 74604
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-Nitrite | 1010 µg/L 10% of the EPA limit 10000 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Fluoride | 930 µg/L 23% of the EPA limit 4000 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Copper | 602.6 µg/L 46% of the EPA limit 1300 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Barium | 80.75 µg/L 4% of the EPA limit 2000 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| TTHM | 78.65 µg/L 98% of the EPA limit 80 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 28.12 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Bromoform | 25.84 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Lithium | 19.4 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2024 | 1/1 | UCMR-5 |
| Bromodichloromethane | 17.78 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 13.675 µg/L 23% of the EPA limit 60 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Chloroform | 9.12 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 8.1165 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 7.36 pCi/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2018 | 1/1 | SYR4 |
| Selenium | 5.4 µg/L 11% of the EPA limit 50 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.802 pCi/L 32% of the EPA limit 15 pCi/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 4.244 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 2.48 µg/L 8.3% of the EPA limit 30 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2018 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.246 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.802 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.2195 pCi/L 24% of the EPA limit 5 pCi/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2018 | 1/1 | SYR4 |
| Dichloromethane | 0.5800 µg/L 12% of the EPA limit 5 µg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0081 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2024 | 1/1 | UCMR-5 |
| PFHXS | 0.0067 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0053 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2024 | 1/1 | UCMR-5 |
| 9Cl-PF3ONS | 0.0034 µg/L No EPA limit set Main supplier: PONCA CITY MUN WATER · 27,155 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PONCA CITY MUN WATER · 27,155 people · 2025 | 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 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 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 Nitrate-Nitrite, Fluoride, Copper, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.