Public water system · MA2277000
ActiveSouthborough Dpw Water Division (MWRA)
At a glance
Southborough Dpw Water Division (MWRA) (PWSID MA2277000) is an active community water system in Worcester County, Massachusetts. It reports serving 10,638 people through 3,340 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; all are health-based, and the most recent began in August 2006.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
10,638
Service connections
3,340
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Southborough Dpw Water Division (MWRA) compare with other water systems in Worcester County?
By EPA's size categories, Southborough Dpw Water Division (MWRA) is a large system (10,001 to 100,000 people). Worcester County has 346 active public water systems. Its population served is about 4.8 times the county average of 2,239 people per system, and accounts for 1.4% of the 774,523 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 Southborough Dpw Water Division (MWRA) is about 59% above 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 126 Massachusetts systems (7.7%) list purchased surface water as their primary source.
Who owns and regulates Southborough Dpw Water Division (MWRA)?
EPA lists Southborough Dpw Water Division (MWRA) 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. 80 of the 346 active systems in Worcester County (23%) are also owned by a local government.
Does Southborough Dpw Water Division (MWRA) have drinking water violations?
EPA's records list 5 violations for this system; all are health-based, and the most recent began in August 2006. The violations listed here began between January 1992 and August 2006. By type: 4 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 as resolved and 1 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2006-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-01-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
All 5 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.
Southborough Dpw Water Division (MWRA): frequently asked questions
Who runs Southborough Dpw Water Division (MWRA)?
Southborough Dpw Water Division (MWRA) (PWSID MA2277000) is a community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does Southborough Dpw Water Division (MWRA) serve?
Southborough Dpw Water Division (MWRA) reports serving 10,638 people through 3,340 service connections in Worcester County, Massachusetts.
Where does Southborough Dpw Water Division (MWRA) get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Southborough Dpw Water Division (MWRA) have any drinking water violations?
EPA's records list 5 violations for this system; all are health-based, and the most recent began in August 2006. 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 Southborough Dpw Water Division (MWRA)'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 5 violations for this system; all are health-based, and the most recent began in August 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.
Where can I find Southborough Dpw Water Division (MWRA)'s water quality report?
As a community water system, Southborough Dpw Water Division (MWRA) 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 Worcester County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Worcester Dpwp, Water Supply Division | Worcester | 206,518 | Community | Surface water |
| Fitchburg Dpw Division of Water Supply | Worcester | 41,946 | Community | Surface water |
| Leominster Water Division | Worcester | 41,683 | Community | Surface water |
| Shrewsbury Water Department | Worcester | 38,325 | Community | Groundwater |
| Milford Water Department | Worcester | 30,379 | Community | Surface water |
| Westborough Water Department | Worcester | 21,567 | Community | Surface water |
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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, “Southborough Dpw Water Division (MWRA), PWSID MA2277000, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/southborough-dpw-water-division-mwra-ma2277000 (data as of October 1, 2026).