What was found in Williamsburg'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 | 1007.5 µg/L 25% of the EPA limit 4000 µg/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2019 | 1/3 | SYR4 |
| Nitrate | 410 µg/L 4.1% of the EPA limit 10000 µg/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 410 µg/L 4.1% of the EPA limit 10000 µg/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2014 | 1/3 | SYR4 |
| Copper | 359 µg/L 28% of the EPA limit 1300 µg/L Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2017 | 3/3 | SYR4 |
| TTHM | 102.01 µg/L 128% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2019
Highest in the city: 116.04 µg/L — WHITLEY CO. WATER DISTRICT 92 WEST · 321 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 83.01 µg/L 138% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2019
Highest in the city: 97.25 µg/L — WHITLEY CO. WATER DISTRICT 92 WEST · 321 people · 2019 | 3/3 | SYR4 |
| Barium | 29.6 µg/L 1.5% of the EPA limit 2000 µg/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2019 | 1/3 | SYR4 |
| Lead | 2.95 µg/L 20% of the EPA limit 15 µg/L Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2017 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2014 | 1/3 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Highest in the city: WILLIAMSBURG WATER DEPARTMENT · 5,554 people · 2019 | 1/3 | SYR4 |
| Pfhxa | 0.0200 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| Pfpea | 0.0120 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| PFOA | 0.0100 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| Pfba | 0.0073 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| PFOS | 0.0046 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| PFBS | 0.0041 µg/L No EPA limit set Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: WHITLEY CO WATER DISTRICT · 9,825 people · 2023 | 3/3 | LCR |
Water suppliers serving Williamsburg
| Supplier | Population served |
|---|---|
| WHITLEY CO WATER DISTRICT | 9,825 |
| WILLIAMSBURG WATER DEPARTMENT | 5,554 |
| WHITLEY CO. WATER DISTRICT 92 WEST | 321 |
Frequently asked questions about Williamsburg tap water
Is Williamsburg tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Williamsburg. 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 Williamsburg?
3 public water suppliers report drinking-water monitoring for Williamsburg, Kentucky to the EPA. Each is listed above with its population served.
What contaminants are in Williamsburg's water?
The contaminants EPA monitoring detected in Williamsburg include Fluoride, Nitrate, Nitrate-Nitrite, 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.