What was found in Weirton'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 | 966.5 µg/L 24% of the EPA limit 4000 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 870 µg/L 8.7% of the EPA limit 10000 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2016 | 1/2 | SYR4 |
| Nitrate | 770 µg/L 7.7% of the EPA limit 10000 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Copper | 489.95 µg/L 38% of the EPA limit 1300 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| TTHM | 107 µg/L 134% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Barium | 46.54 µg/L 2.3% of the EPA limit 2000 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 44.82 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 36.4 µg/L 61% of the EPA limit 60 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 29.63 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Bromoform | 23.81 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 17.83 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Chloroform | 14.895 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 14.06 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 9.4965 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019
Highest in the city: 12.172 µg/L — OAKLAND PSD GOLDEN KEY ACRES · 506 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 7.805 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019
Highest in the city: 9.956 µg/L — OAKLAND PSD GOLDEN KEY ACRES · 506 people · 2019 | 2/2 | SYR4 |
| cis-1,2-Dichloroethylene | 9.925 µg/L 14% of the EPA limit 70 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 6.28 µg/L No EPA limit set Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Lead | 4.15 µg/L 28% of the EPA limit 15 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 2/2 | SYR4 |
| Trichloroethylene | 2.941 µg/L 59% of the EPA limit 5 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Selenium | 2.4 µg/L 4.8% of the EPA limit 50 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.773 pCi/L 12% of the EPA limit 15 pCi/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Vinyl Chloride | 0.5255 µg/L 26% of the EPA limit 2 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| 1,1,1-Trichloroethane | 0.4860 µg/L 0.2% of the EPA limit 200 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 0.4000 µg/L 6.7% of the EPA limit 6 µg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2019 | 1/2 | SYR4 |
| Lead | 0.00074 mg/L 4.9% of the EPA limit 0.0150 mg/L Main supplier: WEIRTON AREA WATER BOARD · 18,633 people · 2024
Highest in the city: 0.0030 mg/L — OAKLAND PSD GOLDEN KEY ACRES · 506 people · 2024 | 2/2 | 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 Weirton
| Supplier | Population served |
|---|---|
| WEIRTON AREA WATER BOARD | 18,633 |
| OAKLAND PSD GOLDEN KEY ACRES | 506 |
Frequently asked questions about Weirton tap water
Is Weirton tap water safe to drink?
EPA testing detected 25 contaminants in the water serving Weirton. 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 Weirton?
2 public water suppliers report drinking-water monitoring for Weirton, West Virginia to the EPA. Each is listed above with its population served.
What contaminants are in Weirton's water?
The contaminants EPA monitoring detected in Weirton include Fluoride, Nitrate-Nitrite, Nitrate, 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.