What was found in Guymon'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 | 6744 µg/L 67% of the EPA limit 10000 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Nitrate | 5440 µg/L 54% of the EPA limit 10000 µg/L Main supplier: GUYMON · 11,442 people · 2017 | 1/1 | SYR4 |
| Fluoride | 1910 µg/L 48% of the EPA limit 4000 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Copper | 164.1 µg/L 13% of the EPA limit 1300 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Lithium | 154 µg/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2023 | 1/1 | UCMR-5 |
| Barium | 52.6 µg/L 2.6% of the EPA limit 2000 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 15.275 µg/L 51% of the EPA limit 30 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 12.115 pCi/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 11 pCi/L 73% of the EPA limit 15 pCi/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| TTHM | 6.636 µg/L 8.3% of the EPA limit 80 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.5675 µg/L 56% of the EPA limit 10 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Lead | 4.9 µg/L 33% of the EPA limit 15 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.8 µg/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.4775 µg/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 2.15925 pCi/L 43% of the EPA limit 5 pCi/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 2.01 µg/L 0% of the EPA limit 10000 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.8775 µg/L 3.1% of the EPA limit 60 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.8095 µg/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Benzene | 0.8500 µg/L 17% of the EPA limit 5 µg/L Main supplier: GUYMON · 11,442 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GUYMON · 11,442 people · 2025 | 1/1 | LCR |
Water suppliers serving Guymon
| Supplier | Population served |
|---|---|
| GUYMON | 11,442 |
Frequently asked questions about Guymon tap water
Is Guymon tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Guymon. 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 Guymon?
1 public water supplier report drinking-water monitoring for Guymon, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Guymon's water?
The contaminants EPA monitoring detected in Guymon include Nitrate-Nitrite, Nitrate, Fluoride, Copper, Lithium. 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.