F0/100
Ardmore Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 36,143 residents · Oklahoma
What's In Ardmore's Tap Water?
69
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.019 mg/L | 0.015 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
1
Health-Related
TIER 1 — URGENTResolved
Violation related to Nitrate
When: May 1, 2024 – May 31, 2024Rule: Surface Water Treatment RuleEnforcement: Formal — state order issued
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
ARDMORE
Population Served
24,893
Water Source
Surface Water
System ID
OK1010814
SOUTHERN OKLA WATER CORP
Population Served
11,250
Water Source
Surface Water
System ID
OK1010830
Frequently Asked Questions About Ardmore Water
Is Ardmore tap water safe to drink?
Ardmore, Oklahoma tap water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 454 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Ardmore's water?
Of the 69 contaminants tested in Ardmore's water supply, the most notable include Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Ardmore have any water quality violations?
Yes, Ardmore has 454 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, MCL, MR. 182 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ardmore?
Based on EPA data, using a water filter in Ardmore is recommended. 1 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 Ardmore's tap water come from?
Ardmore's drinking water is sourced from surface water and supplied by ARDMORE and 1 other water system(s). The system serves approximately 36,143 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Ardmore'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. Ardmore'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 Ardmore's water compare to other cities in Oklahoma?
Ardmore's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Oklahoma state page to see how all cities in the state compare.
What should I do if I'm concerned about Ardmore's water quality?
If you have concerns about Ardmore'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 (ARDMORE) 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.