EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

CITY WATER-SYSTEM LEDGER

Chelmsford, Massachusetts

Compare active community water systems serving this city in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems3active CWS · pop. 2,500+
Population served39,210reported total; may overlap
Current violation flag66.7%2 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Chelmsford

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Chelmsford Water DistrictMA305600028,750Ground waterNo current violation flagged
North Chelmsford Water DistMA30560027,660Ground waterCurrent monitoring/reporting flag
East Chelmsford Water DistrictMA30560012,800Surface water purchasedCurrent monitoring/reporting flag

02 / SOURCE MIX

Ground water2 systems · 36,410 served
Surface water purchased1 systems · 2,800 served
How to read the population total

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.