Water quality in Chelmsford, Massachusetts
Chelmsford is in Middlesex County. 206 active public water systems serve the county; 85 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Middlesex County
97 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| East Chelmsford Water District Chelmsford |
2,800 | 1 | 2.3 mi | |
| North Chelmsford Water Dist Chelmsford |
7,660 | 2 | 2.6 mi | |
| Lowell Regional Water Utility Lowell |
120,418 | 1 | 3.0 mi | |
| Westford Water Department Westford |
18,848 | 1 | 4.5 mi | |
| Woodward Village Carlisle |
54 | 0 | 4.8 mi | |
| Garrison Place Condominium Trust Carlisle |
32 | 0 | 4.8 mi | |
| Carlisle Village Court Carlisle |
25 | 0 | 4.8 mi | |
| Tyngsborough Water District Tyngsborough |
4,416 | 0 | 5.0 mi | |
| Dracut Water Supply District Dracut |
25,808 | 0 | 5.3 mi | |
| Colony Heights Condominium Tyngsborough |
120 | 0 | 5.3 mi | |
| Benchmark Condominiums Tyngsborough |
60 | 1 | 5.4 mi | |
| River Crossing Condominium Tyngsborough |
150 | 0 | 5.5 mi | |
| Curtis Hill Condominium Tyngsborough |
96 | 0 | 5.5 mi | |
| Billerica Water Works Billerica |
42,119 | 0 | 5.7 mi | |
| Benfield Farms Carlisle |
50 | 0 | 6.7 mi | |
| Tewksbury Water Department Tewksbury |
31,342 | 1 | 6.7 mi | |
| Haystack Estates Westford |
60 | 0 | 6.8 mi | |
| Kenwood Water District Dracut |
9,620 | 2 | 6.9 mi | |
| Tewksbury Hospital Tewksbury |
2,500 | 1 | 7.2 mi | |
| Dunstable Water Department Dunstable |
337 | 1 | 7.9 mi | |
| Littleton Water Department Littleton |
9,334 | 1 | 8.0 mi | |
| Bedford VA Hospital (rogers Mem. Hosp.) Bedford |
177 | 0 | 8.4 mi | |
| Bedford Water Dept. Bedford |
14,955 | 0 | 8.6 mi | |
| Pine Hill Condominium Acton |
95 | 0 | 8.6 mi | |
| Acton Water Supply District Acton |
21,285 | 2 | 9.7 mi |
Non-community systems in Middlesex County (108: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Middlesex County, nearest to Chelmsford first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Massachusetts records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.