- EPA's UCMR 5 testing looked for 30 contaminants here and found none.
- Lead, 90th percentile: 5.4 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2023–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
- Health-based violation: Surface Water Treatment Rules, Interim Enhanced Surface Water Treatment Rule, from Jan 2026, with no return-to-compliance action in EPA records (EPA SDWIS)
- Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Jan 2023, with no return-to-compliance action in EPA records (EPA SDWIS)
- Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, Oct 2022–Jul 2023 (EPA SDWIS)
- Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, Total Haloacetic Acids (HAA5), Oct 2022–Jul 2023 (EPA SDWIS)
- Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, Total Haloacetic Acids (HAA5), Apr 2022–Jul 2023 (EPA SDWIS)
Public EPA test results
Can you drink Muskogee tap water? What EPA records show
EPA OK1021607 · serves Muskogee County, OK · about 38,310 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Muskogee Municipal Authority (EPA OK1021607)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For Muskogee's main utility, Muskogee Municipal Authority: 5 health-based violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for Muskogee Municipal Authority, as of October 14, 2026
5 health-based violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead, 90th percentile: 5.4 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2023–Dec 31, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found none.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Muskogee Municipal Authority use chloramine?
We didn't find chloramine in Muskogee Municipal Authority's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)