C45/100
Fort Gibson Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,410 residents · Oklahoma
What's In Fort Gibson's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.61 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2024 – December 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – July 15, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – July 15, 2025Rule: Ground Water RuleEnforcement: 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
FORT GIBSON
Population Served
4,700
Water Source
Surface Water
System ID
OK1021622
MUSKOGEE CO. RWD #7
Population Served
1,710
Water Source
Purchased Surface Water
System ID
OK3005103
Frequently Asked Questions About Fort Gibson Water
Is Fort Gibson tap water safe to drink?
Fort Gibson, Oklahoma tap water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 79 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Fort Gibson's water?
Of the 35 contaminants tested in Fort Gibson's water supply, the most notable include Copper (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 Fort Gibson have any water quality violations?
Yes, Fort Gibson has 79 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, RPT, TT. 45 of these are health-based violations, which are the most serious category.
Do I need a water filter in Fort Gibson?
Based on EPA data, using a water filter in Fort Gibson 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 Fort Gibson's tap water come from?
Fort Gibson's drinking water is sourced from surface water and supplied by FORT GIBSON and 1 other water system(s). The system serves approximately 6,410 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Fort Gibson'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. Fort Gibson'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 Fort Gibson's water compare to other cities in Oklahoma?
Fort Gibson's water quality score of 45/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Oklahoma state page to see how all cities in the state compare.
What should I do if I'm concerned about Fort Gibson's water quality?
If you have concerns about Fort Gibson'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 (FORT GIBSON) 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.