What was found in Coalgate'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 |
|---|---|---|---|
| Fluoride | 990 µg/L 25% of the EPA limit 4000 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Nitrate-Nitrite | 827.5 µg/L 8.3% of the EPA limit 10000 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Copper | 303.85 µg/L 23% of the EPA limit 1300 µg/L Main supplier: COALGATE PWA · 2,005 people · 2017
Highest in the city: 523.2 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Lead | 1.125 µg/L 7.5% of the EPA limit 15 µg/L Main supplier: COALGATE PWA · 2,005 people · 2017
Highest in the city: 188.787 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| TTHM | 105.06 µg/L 131% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 114 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Chloroform | 80.96 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 99.185 µg/L — COAL CO RWD #5 · 366 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 44.26 µg/L 74% of the EPA limit 60 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 55.37 µg/L — ROUNDHILL RWD #4 · 219 people · 2019 | 4/4 | SYR4 |
| Barium | 53.75 µg/L 2.7% of the EPA limit 2000 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 53.422 pCi/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 21.04 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 31.57 µg/L — ROUNDHILL RWD #4 · 219 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 26.45 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 29.66 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 23.72 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 23.9 µg/L — ROUNDHILL RWD #4 · 219 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 9.62 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 10.3 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Bromoform | 4.03 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 4.66 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 2.935 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 4.2185 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 2.0425 µg/L No EPA limit set Main supplier: COALGATE PWA · 2,005 people · 2019
Highest in the city: 3.035 µg/L — PHILLIPS RWD #1 · 140 people · 2019 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.493 pCi/L 17% of the EPA limit 15 pCi/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 1.24 µg/L No EPA limit set Highest in the city: PHILLIPS RWD #1 · 140 people · 2019 | 1/4 | SYR4 |
| Selenium | 0.6063 µg/L 1.2% of the EPA limit 50 µg/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.5503 pCi/L 11% of the EPA limit 5 pCi/L Main supplier: COALGATE PWA · 2,005 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0123 mg/L 82% of the EPA limit 0.0150 mg/L Main supplier: COALGATE PWA · 2,005 people · 2026 | 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 Coalgate
| Supplier | Population served |
|---|---|
| COALGATE PWA | 2,005 |
| COAL CO RWD #5 | 366 |
| ROUNDHILL RWD #4 | 219 |
| PHILLIPS RWD #1 | 140 |
Frequently asked questions about Coalgate tap water
Is Coalgate tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Coalgate. 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 Coalgate?
4 public water suppliers report drinking-water monitoring for Coalgate, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Coalgate's water?
The contaminants EPA monitoring detected in Coalgate include Fluoride, Nitrate-Nitrite, Copper, Lead, 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.