Water Quality: Boston, MA
3 water systems • 675,937 people served
Some ConcernsWater Quality Summary
Boston is served by 3 public water systems with a combined service population of 675,937 people, and has 6 EPA Safe Drinking Water Act violations on record. Critically, 1 of those are health-based violation, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Boston's violation count is 81% below the national average for Massachusetts. Contaminants associated with violations include Disinfection Byproducts.
Contaminants Found
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Water Systems Serving Boston
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| BOSTON WATER AND SEWER COMMISSION (MWRA) | MA3035000 | Surface Water | 675,647 | 1 |
| NOQUOCHOKE VILLAGE LLC | MA4334092 | Groundwater | 180 | 3 |
| FIELDS AT SHERBORN CONDO TRUST | MA3269032 | Groundwater | 110 | 2 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Massachusetts
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.