County drinking water records
Suffolk County, MA drinking water systems
4 community water systems serve Suffolk County, MA, reporting 795,468 people served in all. A system that also serves other counties counts all of its customers here.
1 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.
4 rely mainly on surface water, counting water bought from other systems.
Their lead service line inventories list 3,253 lead lines, 290 galvanized lines that must be replaced and 9,154 lines of unknown material.
1 more system is placed in Suffolk County, MA by the county its records name because it has no service area map that lines up with its own records, so it is listed apart and not counted here.
- Community water systems
- 4
- People served, sum of each system's own figure
- 795,468
- Systems with a health-based violation, last 10 years
- 1
- Systems with one unresolved
- 0
- Lead service lines in inventories
- 3,253
Water systems serving Suffolk County
4 systemsPeople served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.
| System | Serves | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Boston Water and Sewer Commission (MWRA) | Boston | 675,647 | Purchased surface water | 1 | 0 | 2,184 |
| Revere Water Division (MWRA) | Revere | 62,186 | Purchased surface water | 0 | 0 | 443 |
| Chelsea Water Dept. (MWRA) | Chelsea | 38,319 | Purchased surface water | 0 | 0 | 87 |
| Winthrop Water Division, (MWRA) | Winthrop Town | 19,316 | Purchased surface water | 0 | 0 | 539 |
Systems placed by county record in Suffolk County
1 systemEPA has no service area map for this system. It is placed by the county its records name (the counties EPA lists it serving, or the county coded in its ID where EPA lists none), and without a map it is not counted in the figures above.
| System | Serves | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| MWRA | County on record | 2,660,000 | Surface water | 0 | 0 | 0 |
Cities and towns in Suffolk County
4 places- Boston1 system
- Chelsea1 system
- Revere1 system
- Winthrop Town1 system
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations