Massachusetts
Dukes County drinking water quality
27 active public water systems serve 42,316 people in Dukes County. 15 are compliant, 12 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
7 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Oak Bluffs Water District Oak Bluffs |
24,000 | 0 | 0 | |
|
Edgartown Water Department Edgartown |
8,027 | 0 | 0 | |
|
Tisbury Water Works Tisbury |
6,082 | 2 | 2 | |
|
Menemsha Water Company Chilmark |
841 | 1 | 0 | |
|
Gosnold Water Dept Gosnold |
425 | 1 | 1 | |
|
Kuehns Way LLC Tisbury |
80 | 0 | 0 | |
|
Scotts Grove LLC Tisbury |
36 | 0 | 0 |
Non-community systems (20: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Marthas Vineyard Airport Tisbury |
750 | 1 | 1 | |
|
West Tisbury Elementary School Tisbury |
375 | 0 | 0 | |
|
7a Foods Tisbury |
250 | 1 | 0 | |
|
Chilmark Community Center Chilmark |
200 | 0 | 0 | |
|
State Road Restaurant Tisbury |
200 | 1 | 0 | |
|
M.v. Public Charter School Tisbury |
150 | 2 | 0 | |
|
Chappaquiddick Beach Club, Inc. Edgartown |
125 | 0 | 0 | |
|
Marthas Vineyard Agricultural Society Tisbury |
100 | 0 | 0 | |
|
Chilmark Tavern Chilmark |
99 | 0 | 0 | |
|
Chilmark School Chilmark |
90 | 2 | 1 | |
|
Beach Plum Inn Chilmark |
80 | 1 | 0 | |
|
Focus Study Center Tisbury |
80 | 1 | 0 | |
|
Menemsha Inn Chilmark |
60 | 0 | 0 | |
|
Polly Hill Arboretum, Inc. Tisbury |
60 | 1 | 0 | |
|
American Youth Hostel Tisbury |
40 | 0 | 0 | |
|
Chilmark Preschool Chilmark |
40 | 0 | 0 | |
|
Lamberts Cove Inn and Restaurant Tisbury |
40 | 2 | 1 | |
|
Island Childrens School Tisbury |
36 | 0 | 0 | |
|
West Tisbury Free Public Library Tisbury |
25 | 0 | 0 | |
|
West Tisbury Town Hall Tisbury |
25 | 0 | 0 |
Inactive systems (12, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.