What was found in Boston'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 |
|---|---|---|---|
| Lead | 0.0098 mg/L 66% of the EPA limit 0.0150 mg/L Main supplier: ECWA BOSTON · 7,250 people · 2022 | 1/1 | LCR |
Water suppliers serving Boston
| Supplier | Population served |
|---|---|
| ECWA BOSTON | 7,250 |
Frequently asked questions about Boston tap water
Is Boston tap water safe to drink?
EPA testing detected 1 contaminant in the water serving Boston. 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 Boston?
1 public water supplier report drinking-water monitoring for Boston, New York to the EPA. Each is listed above with its population served.
What contaminants are in Boston's water?
The contaminants EPA monitoring detected in Boston include Lead. 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.