Public water system · MA1340000
ActiveWilliamsburg Water Dept
At a glance
Williamsburg Water Dept (PWSID MA1340000) is an active community water system in Hampshire County, Massachusetts. It reports serving 1,575 people through 571 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,575
Service connections
571
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Williamsburg Water Dept compare with other water systems in Hampshire County?
By EPA's size categories, Williamsburg Water Dept is a small system (501 to 3,300 people). Hampshire County has 94 active public water systems. Its population served is roughly in line with the county average of 1,556 people per system, and accounts for 1.1% of the 146,285 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 Williamsburg Water Dept is well below 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 Williamsburg Water Dept?
EPA lists Williamsburg Water Dept 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. 24 of the 94 active systems in Hampshire County (26%) are also owned by a local government.
Does Williamsburg Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2019. The violations listed here began between December 2013 and February 2019. By type: 4 monitoring, 4 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as archived and 5 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 |
|---|---|---|---|---|
| 2019-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-11-28 | Public notice, recordkeeping or otherNotification, State · code 05 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2018-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Archived |
| 2015-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 2015-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2015-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 2015-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2013-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
The 12 most recent 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.
Williamsburg Water Dept: frequently asked questions
Who runs Williamsburg Water Dept?
Williamsburg Water Dept (PWSID MA1340000) is a community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does Williamsburg Water Dept serve?
Williamsburg Water Dept reports serving 1,575 people through 571 service connections in Hampshire County, Massachusetts.
Where does Williamsburg Water Dept 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 Williamsburg Water Dept have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2019. 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 Williamsburg Water Dept'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. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in February 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.
Where can I find Williamsburg Water Dept's water quality report?
As a community water system, Williamsburg Water Dept 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 Hampshire County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Amherst Dpw Water Division | Hampshire | 39,263 | Community | Surface water |
| Northampton Water Division | Hampshire | 29,571 | Community | Surface water |
| Easthampton Water Dept | Hampshire | 16,211 | Community | Groundwater |
| South Hadley Fd #1 (MWRA) | Hampshire | 14,800 | Community | Purchased surface water |
| Ware Water Dept | Hampshire | 10,066 | Community | Groundwater |
| South Hadley Fire District #2 Water Dept | Hampshire | 6,200 | 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, “Williamsburg Water Dept, PWSID MA1340000, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/williamsburg-water-dept-ma1340000 (data as of October 1, 2026).