All water systems in Massachusetts
1,613 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Stoneham Water Dept (mwra Supply) Stoneham · Middlesex County |
23,244 | 0 | 0 | |
|
Sandwich Water District Sandwich · Barnstable County |
23,000 | 1 | 0 | |
|
Winchester Water Dept Winchester · Middlesex County |
22,970 | 2 | 0 | |
|
Canton Water Dept Canton · Norfolk County |
22,766 | 2 | 1 | |
|
Bourne Water District Bourne · Barnstable County |
22,500 | 0 | 0 | |
|
Provincetown Water Department Provincetown · Barnstable County |
22,250 | 0 | 0 | |
|
Mansfield Water Division Mansfield · Bristol County |
21,797 | 0 | 0 | |
|
Wilmington Water Dept Wilmington · Middlesex County |
21,654 | 1 | 1 | |
|
Westborough Water Department Westborough · Worcester County |
21,567 | 4 | 0 | |
|
Gardner Water Department Gardner · Worcester County |
21,381 | 0 | 0 | |
|
Acton Water Supply District Acton · Middlesex County |
21,285 | 2 | 0 | |
|
Marblehead Water Dept. (mwra) Marblehead · Essex County |
20,441 | 0 | 0 | |
|
Newburyport Water Department Newburyport · Essex County |
20,335 | 1 | 1 | |
|
Wareham Fire District Wareham · Plymouth County |
20,102 | 0 | 0 | |
|
Hudson Water Supply Hudson · Middlesex County |
20,032 | 1 | 0 | |
|
Southbridge Water Department Southbridge · Worcester County |
19,562 | 0 | 0 | |
|
Winthrop Water Division, (mwra) Winthrop · Suffolk County |
19,316 | 1 | 1 | |
|
Scituate Water Division Scituate · Plymouth County |
19,297 | 6 | 2 | |
|
Norton Water Department Norton · Bristol County |
19,161 | 2 | 1 | |
|
Westford Water Department Westford · Middlesex County |
18,848 | 1 | 1 | |
|
Ashland Water and Sewer Dept. Ashland · Middlesex County |
18,832 | 1 | 1 | |
|
Concord Water Dept Concord · Middlesex County |
18,788 | 1 | 1 | |
|
Foxboro Water Department Foxborough · Norfolk County |
18,721 | 0 | 0 | |
|
Sudbury Water District Sudbury · Middlesex County |
18,416 | 3 | 3 | |
|
Somerset Water Department Somerset · Bristol County |
18,303 | 1 | 0 | |
|
Pembroke Water Division Dpw Pembroke · Plymouth County |
18,175 | 0 | 0 | |
|
Holden Water Division, Dpw Holden · Worcester County |
18,016 | 0 | 0 | |
|
Webster Water Department Webster · Worcester County |
17,776 | 1 | 0 | |
|
Greenfield Water Department Greenfield · Franklin County |
17,768 | 0 | 0 | |
|
Orleans Water Department Orleans · Barnstable County |
17,460 | 1 | 0 | |
|
Swansea Water District Swansea · Bristol County |
17,375 | 1 | 0 | |
|
Amesbury Dpw Water Div. Amesbury · Essex County |
17,366 | 2 | 1 | |
|
Sharon Water Dept Sharon · Norfolk County |
16,846 | 1 | 0 | |
|
Bellingham Dpw Water Sewer Division Bellingham · Norfolk County |
16,556 | 0 | 0 | |
|
Duxbury Water Department Duxbury · Plymouth County |
16,387 | 0 | 0 | |
|
North Reading Water Dept. North Reading · Middlesex County |
16,379 | 1 | 1 | |
|
East Longmeadow Dpw Water Dept East Longmeadow · Hampden County |
16,358 | 0 | 0 | |
|
Easthampton Water Dept Easthampton · Hampshire County |
16,211 | 0 | 0 | |
|
Longmeadow Water Dept Longmeadow · Hampden County |
15,853 | 2 | 1 | |
|
Clinton Water Dept Clinton · Worcester County |
15,428 | 1 | 0 | |
|
Middleborough Water Supply Middleborough · Plymouth County |
15,350 | 0 | 0 | |
|
Swampscott Water Dept. (mwra) Swampscott · Essex County |
15,300 | 0 | 0 | |
|
Fairhaven Water Dept Fairhaven · Bristol County |
15,155 | 0 | 0 | |
|
Holliston Water Department Holliston · Middlesex County |
15,139 | 1 | 1 | |
|
Hanover Water Dept Hanover · Plymouth County |
14,984 | 3 | 0 | |
|
Bedford Water Dept. Bedford · Middlesex County |
14,955 | 0 | 0 | |
|
Whitman Water System Whitman · Plymouth County |
14,947 | 1 | 1 | |
|
South Hadley FD #1 (mwra) South Hadley · Hampshire County |
14,800 | 1 | 0 | |
|
Kingston Water Department Kingston · Plymouth County |
14,715 | 0 | 0 | |
|
East Bridgewater Water Dept East Bridgewater · Plymouth County |
14,526 | 1 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.