What was found in Williamston'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 |
|---|---|---|---|
| Copper | 123.19999999999996 µg/L 9.5% of the EPA limit 1300 µg/L Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| TTHM | 75.99499999999999 µg/L 95% of the EPA limit 80 µg/L Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Chloroform | 63.044999999999995 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Lead | 46 µg/L 307% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.534999999999993 µg/L 53% of the EPA limit 60 µg/L Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 18.009999999999998 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 13.569999999999997 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 9.939999999999998 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 3.4099999999999993 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.3499999999999999 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2019 | 1/1 | SYR4 |
| PFBS | 0.0034 µg/L No EPA limit set Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: WILLIAMSTON TOWN OF (SC0410010) · 6,693 people · 2025 | 1/1 | LCR |
Water suppliers serving Williamston
| Supplier | Population served |
|---|---|
| WILLIAMSTON TOWN OF (SC0410010) | 6,693 |
Frequently asked questions about Williamston tap water
Is Williamston tap water safe to drink?
EPA testing detected 13 contaminants in the water serving Williamston. 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 Williamston?
1 public water supplier report drinking-water monitoring for Williamston, South Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Williamston's water?
The contaminants EPA monitoring detected in Williamston include Copper, TTHM, Chloroform, Lead, 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.