Lead and Copper Rule (LCR) violations in Massachusetts
158 active public water systems in Massachusetts had a Lead and Copper Rule (LCR) violation in the past three years, 157 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.
Health effects: Lead: no safe level for children. Causes irreversible neurological damage, impaired cognitive development, behavioral problems, and reduced IQ in children under 6. In adults: hypertension, cardiovascular disease, kidney damage. Copper: acute gastrointestinal distress at high levels; liver/kidney damage at very high chronic levels.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Williamstown Water Dept Williamstown · Berkshire County |
7,326 | 1 | 1 | |
|
Middleton Water Dept. Middleton · Essex County |
7,291 | 2 | 1 | |
|
Merrimac Water Department Merrimac · Essex County |
6,988 | 1 | 1 | |
|
Sterling Water Department Sterling · Worcester County |
6,814 | 2 | 0 | |
|
Lee Water Dept Lee · Berkshire County |
5,686 | 1 | 1 | |
|
Lincoln Water Dept Lincoln · Middlesex County |
5,593 | 1 | 1 | |
|
Topsfield Water Department Topsfield · Essex County |
5,435 | 2 | 2 | |
|
Manchester by the Sea Dpw Manchester · Essex County |
5,201 | 1 | 1 | |
|
Nahant Water Dept. (mwra) Nahant · Essex County |
3,334 | 1 | 1 | |
|
South Grafton Water District Grafton · Worcester County |
3,262 | 3 | 2 | |
|
Three Rivers Fire District Palmer · Hampden County |
3,258 | 1 | 1 | |
|
Hanscom Family Housing (landings) Lincoln · Middlesex County |
3,067 | 1 | 1 | |
|
Wellesley College Wellesley · Norfolk County |
3,000 | 1 | 1 | |
|
Lanesborough Fire and Water District Lanesborough · Berkshire County |
2,342 | 2 | 2 | |
|
Southfield Redevelopement Authority Weymouth · Norfolk County |
2,300 | 1 | 1 | |
|
Aquarion Water Company (dover) Dover · Norfolk County |
1,929 | 2 | 2 | |
|
Monument Mtn Regional HS Great Barrington · Berkshire County |
1,700 | 1 | 1 | |
|
Williamsburg Water Dept Williamsburg · Hampshire County |
1,575 | 1 | 1 | |
|
Housatonic Water Works Great Barrington · Berkshire County |
1,391 | 2 | 2 | |
|
Russell Water Dept Russell · Hampden County |
1,228 | 2 | 2 | |
|
Egremont Water Dept Egremont · Berkshire County |
1,000 | 1 | 1 | |
|
Summer Village Westford · Middlesex County |
1,000 | 2 | 1 | |
|
Plymouth So.elem.sch. Plymouth · Plymouth County |
950 | 3 | 1 | |
|
Westover Arb Chicopee · Hampden County |
950 | 1 | 1 | |
|
Whately Water Department Whately · Franklin County |
900 | 2 | 2 | |
|
Granby JR SR High and East Meadow School Granby · Hampshire County |
870 | 1 | 1 | |
|
Chester Water Dept Chester · Hampden County |
750 | 3 | 1 | |
|
Marthas Vineyard Airport Tisbury · Dukes County |
750 | 1 | 1 | |
|
Northfield MT Hermon School Gill · Franklin County |
750 | 1 | 1 | |
|
South Meadow Village Carver · Plymouth County |
750 | 1 | 1 | |
|
Metrowest YMCA Hopkinton · Middlesex County |
700 | 2 | 2 | |
|
Berkley Community School Berkley · Bristol County |
647 | 2 | 1 | |
|
Barnstable County Jail Bourne · Barnstable County |
600 | 1 | 1 | |
|
Pine Valley Plantation Belchertown · Hampshire County |
600 | 1 | 1 | |
|
Erving Water Dept Erving · Franklin County |
561 | 1 | 1 | |
|
Karl Storz Endovision, Inc. Charlton · Worcester County |
550 | 2 | 2 | |
|
Mohawk Trail Regional High School Buckland · Franklin County |
550 | 1 | 1 | |
|
Dover Water Dept Dover · Norfolk County |
500 | 1 | 1 | |
|
Spofford Pond School Boxford · Essex County |
486 | 1 | 1 | |
|
Blandford Water Dept Blandford · Hampden County |
442 | 3 | 2 | |
|
Harry Lee Cole School Boxford · Essex County |
439 | 1 | 1 | |
|
Kings Grant Water CO INC North Attleborough · Bristol County |
434 | 5 | 2 | |
|
Gosnold Water Dept Gosnold · Dukes County |
425 | 1 | 1 | |
|
Cranberry Village Residents Association Carver · Plymouth County |
414 | 1 | 0 | |
|
Ashfield Water District Ashfield · Franklin County |
400 | 2 | 1 | |
|
Vacation Village in the Berkshires Hancock · Berkshire County |
400 | 1 | 1 | |
|
Dunstable Water Department Dunstable · Middlesex County |
337 | 1 | 1 | |
|
The Macduffie School Granby · Hampshire County |
305 | 2 | 2 | |
|
Eagle Hill School Hardwick · Worcester County |
300 | 1 | 1 | |
|
159 Swanson RD Setra Systems INC Boxborough · Middlesex County |
278 | 2 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) alone.
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.