What was found in Henryetta'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 | 450 µg/L 4.5% of the EPA limit 10000 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 3110 µg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 2/4 | SYR4 |
| Copper | 45.2 µg/L 3.5% of the EPA limit 1300 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2017
Highest in the city: 1377.12 µg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 4/4 | SYR4 |
| Barium | 56 µg/L 2.8% of the EPA limit 2000 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2012
Highest in the city: 245.1 µg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2017 | 2/4 | SYR4 |
| TTHM | 89.655 µg/L 112% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 130.205 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Fluoride | 110 µg/L 2.8% of the EPA limit 4000 µg/L Highest in the city: MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2017 | 1/4 | SYR4 |
| Chloroform | 71.84 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 108.17 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Lead | 32.24 µg/L 215% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2017
Highest in the city: 92.4 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 50.935 µg/L 85% of the EPA limit 60 µg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 68.1 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 27.33 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 36.275 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 25.59 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 31.44 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 1.349 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 22.532 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 16.4 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 18.66 µg/L — OKMULGEE CO. RWD #21 · 625 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 4.722 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 12.18 µg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 4/4 | SYR4 |
| Gross Beta Particle Activity | 2.567 pCi/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 5.6585 pCi/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 2/4 | SYR4 |
| Monochloroacetic Acid | 2.9185 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 5.574 µg/L — KUSA RWD #3 · 240 people · 2019 | 3/4 | SYR4 |
| Bromoform | 1.29 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019
Highest in the city: 3.96 µg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 2/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.66 pCi/L 18% of the EPA limit 15 pCi/L Highest in the city: MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 2.4935 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2019 | 2/4 | SYR4 |
| Selenium | 1.1 µg/L 2.2% of the EPA limit 50 µg/L Highest in the city: MCINTOSH CO. RWD #13 (WELLS) · 1,465 people · 2017 | 1/4 | SYR4 |
| Pfpea | 0.0058 µg/L No EPA limit set Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0015 mg/L 10% of the EPA limit 0.0150 mg/L Main supplier: HENRYETTA MUNICIPAL AUTHORITY · 6,096 people · 2023
Highest in the city: 0.0034 mg/L — MCINTOSH CO. RWD #13 (WELLS) · 1,465 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 Henryetta
| Supplier | Population served |
|---|---|
| HENRYETTA MUNICIPAL AUTHORITY | 6,096 |
| MCINTOSH CO. RWD #13 (WELLS) | 1,465 |
| OKMULGEE CO. RWD #21 | 625 |
| KUSA RWD #3 | 240 |
Frequently asked questions about Henryetta tap water
Is Henryetta tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Henryetta. 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 Henryetta?
4 public water suppliers report drinking-water monitoring for Henryetta, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Henryetta's water?
The contaminants EPA monitoring detected in Henryetta include Nitrate-Nitrite, Copper, Barium, TTHM, Fluoride. 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.