Ponca City, Oklahoma Water Quality Report
Water quality data for 9 water systems serving 32,945 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| 9Cl-PF3ONS | 0.003 | No federal limit | — | — | No federal limit |
| lithium | 19.4 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 194% | Above guideline |
| PFBS | 0.005 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxS | 0.007 | 0.010 ug/L | 0.001 ug/L(EWG) | 67% | Within limit |
| PFOS | 0.008 | 0.004 ug/L | 0.300 ug/L(EWG) | 203% | Above limit |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (5)
34
Jul 10, 2025
34
Jul 10, 2025
71
Jul 1, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
Resolved Violations (495)
52
Jul 1, 2025
52
Jul 1, 2025
52
Jul 1, 2025
3A
Feb 1, 2025 — Feb 28, 2025
27
Feb 1, 2025 — Feb 28, 2025
+ 490 more resolved violations
Frequently Asked Questions
Is Ponca City tap water safe to drink?
Ponca City's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Ponca City tap water?
5 contaminants have been detected in Ponca City's water supply across 9 water systems. See the full contaminant table above for details.
How can I improve my water quality in Ponca City?
Install a water filter rated for the specific contaminants found in Ponca City's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Ponca City have any water quality violations?
Yes, Ponca City currently has 103 active violations. See the violations section above for details.