Public water system · MA4296005
ActiveWest Tisbury Elementary School
At a glance
West Tisbury Elementary School (PWSID MA4296005) is an active non-transient non-community water system in Dukes County, Massachusetts. It reports serving 375 people. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
375
Service connections
0
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does West Tisbury Elementary School compare with other water systems in Dukes County?
By EPA's size categories, West Tisbury Elementary School is a very small system (500 people or fewer). Dukes County has 25 active public water systems. Its population served is well below the county average of 1,687 people per system, and accounts for 0.9% of the 42,176 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so West Tisbury Elementary School is about 13% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Massachusetts has 246 active non-transient non-community water systems, 15% of the state's 1,636 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,354 Massachusetts systems (83%) list groundwater as their primary source.
Who owns and regulates West Tisbury Elementary School?
EPA lists West Tisbury Elementary School as owned by a local government. The MA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 25 active systems in Dukes County (40%) are also owned by a local government.
Does West Tisbury Elementary School have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2022. The violations listed here began between July 1994 and June 2022. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 3 as archived and 1 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-06-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1999-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1994-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1994-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 4 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
West Tisbury Elementary School: frequently asked questions
Who runs West Tisbury Elementary School?
West Tisbury Elementary School (PWSID MA4296005) is a non-transient non-community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does West Tisbury Elementary School serve?
West Tisbury Elementary School reports serving 375 people in Dukes County, Massachusetts.
Where does West Tisbury Elementary School get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does West Tisbury Elementary School have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is West Tisbury Elementary School's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 4 violations for this system; none is health-based, and the most recent began in June 2022. For current results, consult EPA ECHO, or the MA state drinking water program.
Where can I find West Tisbury Elementary School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. West Tisbury Elementary School is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Dukes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oak Bluffs Water District | Dukes | 24,000 | Community | Groundwater |
| Edgartown Water Department | Dukes | 8,027 | Community | Groundwater |
| Tisbury Water Works | Dukes | 6,082 | Community | Groundwater |
| Menemsha Water Company | Dukes | 841 | Community | Groundwater |
| Marthas Vineyard Airport | Dukes | 750 | Non-transient non-community | Purchased groundwater |
| Gosnold Water Dept | Dukes | 425 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “West Tisbury Elementary School, PWSID MA4296005, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/west-tisbury-elementary-school-ma4296005 (data as of October 1, 2026).