What was found in Williamson'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 | 1070 µg/L 27% of the EPA limit 4000 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Nitrate | 580 µg/L 5.8% of the EPA limit 10000 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Barium | 158.6 µg/L 7.9% of the EPA limit 2000 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| TTHM | 60.4 µg/L 76% of the EPA limit 80 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 40.1 µg/L 67% of the EPA limit 60 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Chloroform | 39.1 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 22.2 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 19.5 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 16 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.72 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.48 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.44 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Chromium | 3.125 µg/L 3.1% of the EPA limit 100 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Bromoform | 3 µg/L No EPA limit set Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.5800 µg/L 9.7% of the EPA limit 6 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.5000 µg/L 25% of the EPA limit 2 µg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.2400 pCi/L 4.8% of the EPA limit 5 pCi/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2012 | 1/1 | SYR4 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L Main supplier: WILLIAMSON TOWN WD · 6,600 people · 2023 | 1/1 | LCR |
Water suppliers serving Williamson
| Supplier | Population served |
|---|---|
| WILLIAMSON TOWN WD | 6,600 |
Frequently asked questions about Williamson tap water
Is Williamson tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Williamson. 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 Williamson?
1 public water supplier report drinking-water monitoring for Williamson, New York to the EPA. Each is listed above with its population served.
What contaminants are in Williamson's water?
The contaminants EPA monitoring detected in Williamson include Fluoride, Nitrate, Barium, TTHM, Total Haloacetic Acids (HAA5). 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.