CITY WATER-SYSTEM LEDGER
Chelmsford, Massachusetts
EPA’s September 2026 export lists 3 active community water systems serving Chelmsford, Massachusetts, with 2 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Chelmsford, Massachusetts
EPA associates 3 covered systems with Chelmsford, Massachusetts; their reported population-served values total 39,210 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Chelmsford Water DistrictMA3056000 | 28,750 | Ground water | No current violation flagged |
| North Chelmsford Water DistMA3056002 | 7,660 | Ground water | Current monitoring/reporting flag |
| East Chelmsford Water DistrictMA3056001 | 2,800 | Surface water purchased | Current monitoring/reporting flag |
02 / SOURCE MIX
Primary water sources for Chelmsford, Massachusetts
EPA classifies 3 systems serving Chelmsford, Massachusetts across 2 primary-source categories; Ground water is the largest category with 2 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.