Water quality for ZIP code 02557
ZIP 02557 covers Oak Bluffs in Dukes County, Massachusetts, one of 7 ZIP codes in the county. 27 active public water systems serve the county; 12 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 Dukes County
6 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Tisbury Water Works Tisbury |
6,082 | 2 | 2.3 mi | |
| Kuehns Way LLC Tisbury |
80 | 0 | 3.0 mi | |
| Scotts Grove LLC Tisbury |
36 | 0 | 3.0 mi | |
| Edgartown Water Department Edgartown |
8,027 | 0 | 4.3 mi | |
| Menemsha Water Company Chilmark |
841 | 1 | 14.2 mi | |
| Gosnold Water Dept Gosnold |
425 | 1 | 18.4 mi |
Non-community systems in Dukes County (20: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Marthas Vineyard Airport Tisbury |
750 | 1 | 1 | |
|
Marthas Vineyard Agricultural Society Tisbury |
100 | 0 | 0 | |
|
Lamberts Cove Inn and Restaurant Tisbury |
40 | 2 | 1 | |
|
Focus Study Center Tisbury |
80 | 1 | 0 | |
|
M.v. Public Charter School Tisbury |
150 | 2 | 0 | |
|
West Tisbury Elementary School Tisbury |
375 | 0 | 0 | |
|
Island Childrens School Tisbury |
36 | 0 | 0 | |
|
Chappaquiddick Beach Club, Inc. Edgartown |
125 | 0 | 0 | |
|
State Road Restaurant Tisbury |
200 | 1 | 0 | |
|
American Youth Hostel Tisbury |
40 | 0 | 0 | |
|
Polly Hill Arboretum, Inc. Tisbury |
60 | 1 | 0 | |
|
West Tisbury Free Public Library Tisbury |
25 | 0 | 0 | |
|
7a Foods Tisbury |
250 | 1 | 0 | |
|
West Tisbury Town Hall Tisbury |
25 | 0 | 0 | |
|
Chilmark Community Center Chilmark |
200 | 0 | 0 | |
|
Chilmark School Chilmark |
90 | 2 | 1 | |
|
Menemsha Inn Chilmark |
60 | 0 | 0 | |
|
Chilmark Tavern Chilmark |
99 | 0 | 0 | |
|
Beach Plum Inn Chilmark |
80 | 1 | 0 | |
|
Chilmark Preschool Chilmark |
40 | 0 | 0 |
About this data
Water systems are matched to Dukes County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.