B63/100
Ponca City Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 30,720 residents · Oklahoma
What's In Ponca City's Tap Water?
70
Contaminants Tested
2
Exceed EPA Limits
0
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.41 mg/L | 1.30 mg/L | Over Limit |
PFOS | 0.007 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
PONCA CITY MUN WATER
Population Served
27,155
Water Source
Surface Water
System ID
OK1021202
KAY CO RWD #1
Population Served
1,765
Water Source
Purchased Surface Water
System ID
OK3003605
MCCORD RWD #3
Population Served
1,800
Water Source
Purchased Surface Water
System ID
OK3005747
Frequently Asked Questions About Ponca City Water
Is Ponca City tap water safe to drink?
Ponca City, Oklahoma tap water receives a grade of B (63/100), which is considered good. Out of 70 contaminants tested, 2 exceed EPA maximum contaminant levels (MCLs) and 3 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Ponca City's water?
Of the 70 contaminants tested in Ponca City's water supply, the most notable include Copper (90th percentile), PFOS, Lead (90th percentile). 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Ponca City have any water quality violations?
Yes, Ponca City has 42 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 12 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ponca City?
Based on EPA data, using a water filter in Ponca City is recommended. 2 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Ponca City's tap water come from?
Ponca City's drinking water is sourced from surface water and supplied by PONCA CITY MUN WATER and 2 other water system(s). The system serves approximately 30,720 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Ponca City's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Ponca City's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Ponca City's water compare to other cities in Oklahoma?
Ponca City's water quality score of 63/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Oklahoma state page to see how all cities in the state compare.
What should I do if I'm concerned about Ponca City's water quality?
If you have concerns about Ponca City's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (PONCA CITY MUN WATER) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.