What was found in Muskogee's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 895 µg/L 9% of the EPA limit 10000 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019 | 1/4 | SYR4 |
| Chlorite | 828 µg/L 83% of the EPA limit 1000 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019 | 1/4 | SYR4 |
| Fluoride | 720 µg/L 18% of the EPA limit 4000 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2016 | 1/4 | SYR4 |
| Copper | 447.1 µg/L 34% of the EPA limit 1300 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 520.55 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| TTHM | 109 µg/L 136% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 166.65 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Chloroform | 85.44 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 155.15 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 87.86 µg/L 146% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 129 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 38.295 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 63.7 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 44.46 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 61.965 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Barium | 48 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2016 | 1/4 | SYR4 |
| Lead | 6.7 µg/L 45% of the EPA limit 15 µg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 35.2 µg/L — MUSKOGEE CO. RWD #2 (GOOSENECK) · 1,000 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 20.24 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 25.52 µg/L — MUSKOGEE CO. RWD #9 · 300 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 10.069 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 14.63 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 5.674 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 6.906 µg/L — MUSKOGEE CO. RWD #5 · 4,135 people · 2019 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 4.5195 pCi/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2016 | 1/4 | SYR4 |
| Dibromoacetic Acid | 2.063 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019
Highest in the city: 2.48 µg/L — MUSKOGEE CO. RWD #2 (GOOSENECK) · 1,000 people · 2019 | 4/4 | SYR4 |
| Monobromoacetic Acid | 2.3375 µg/L No EPA limit set Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2019 | 4/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.2170 pCi/L 4.3% of the EPA limit 5 pCi/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2016 | 1/4 | SYR4 |
| Lead | 0.0054 mg/L 36% of the EPA limit 0.0150 mg/L Main supplier: MUSKOGEE MUNICIPAL AUTHORITY · 38,310 people · 2025 | 4/4 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Muskogee
| Supplier | Population served |
|---|---|
| MUSKOGEE MUNICIPAL AUTHORITY | 38,310 |
| MUSKOGEE CO. RWD #5 | 4,135 |
| MUSKOGEE CO. RWD #2 (GOOSENECK) | 1,000 |
| MUSKOGEE CO. RWD #9 | 300 |
Frequently asked questions about Muskogee tap water
Is Muskogee tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Muskogee. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Muskogee?
4 public water suppliers report drinking-water monitoring for Muskogee, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Muskogee's water?
The contaminants EPA monitoring detected in Muskogee include Nitrate-Nitrite, Chlorite, Fluoride, Copper, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.