Public water system · MA4086095
ActiveTown of Eastham
At a glance
Town of Eastham (PWSID MA4086095) is an active community water system in Barnstable County, Massachusetts. It reports serving 6,199 people through 2,182 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,199
Service connections
2,182
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Town of Eastham compare with other water systems in Barnstable County?
By EPA's size categories, Town of Eastham is a medium system (3,301 to 10,000 people). Barnstable County has 125 active public water systems. Its population served is about 24% above the county average of 5,016 people per system, and accounts for 1% of the 627,054 people reported by systems filed under the county. Across Massachusetts, the 1,636 active systems average 6,275 people each. Nationally, the average active community water system reports serving 6,703 people, so Town of Eastham is roughly in line with that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Massachusetts has 531 active community water systems, 32% 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 Town of Eastham?
EPA lists Town of Eastham 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. 31 of the 125 active systems in Barnstable County (25%) are also owned by a local government.
Does Town of Eastham have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Town of Eastham. For the latest compliance status, check EPA ECHO for current compliance history.
Town of Eastham: frequently asked questions
Who runs Town of Eastham?
Town of Eastham (PWSID MA4086095) is a community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does Town of Eastham serve?
Town of Eastham reports serving 6,199 people through 2,182 service connections in Barnstable County, Massachusetts.
Where does Town of Eastham 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 Town of Eastham have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Town of Eastham'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.
Where can I find Town of Eastham's water quality report?
As a community water system, Town of Eastham must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Barnstable County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Falmouth Water Dept | Barnstable | 97,551 | Community | Surface water |
| Dennis Water District | Barnstable | 65,000 | Community | Groundwater |
| Upper Cape Regional Water Cooperative | Barnstable | 56,250 | Community | Groundwater |
| Centerville Osterville Marstons Mills Wd | Barnstable | 50,000 | Community | Groundwater |
| Harwich Water Department | Barnstable | 39,144 | Community | Groundwater |
| Yarmouth Water Department | Barnstable | 38,900 | Community | Groundwater |
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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, “Town of Eastham, PWSID MA4086095, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/town-of-eastham-ma4086095 (data as of October 1, 2026).