B65/100
Ketchum Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 5,830 residents · Oklahoma
What's In Ketchum's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (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, 2021 – December 31, 2021Rule: Stage 1 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
KETCHUM PWA
Population Served
4,025
Water Source
Surface Water
System ID
OK1021612
KETCHUM PWA DELAWARE CO SYSTEM
Population Served
1,805
Water Source
Surface Water
System ID
OK1221638
Frequently Asked Questions About Ketchum Water
Is Ketchum tap water safe to drink?
Ketchum, Oklahoma tap water receives a grade of B (65/100), which is considered good. Out of 34 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 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 Ketchum's water?
Of the 34 contaminants tested in Ketchum's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Ketchum have any water quality violations?
Yes, Ketchum has 43 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, MON, Other. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Ketchum?
Ketchum water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Ketchum's tap water come from?
Ketchum's drinking water is sourced from surface water and supplied by KETCHUM PWA and 1 other water system(s). The system serves approximately 5,830 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Ketchum'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. Ketchum'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 Ketchum's water compare to other cities in Oklahoma?
Ketchum's water quality score of 65/100 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 Ketchum's water quality?
If you have concerns about Ketchum'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 (KETCHUM PWA) 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.