Public water system · MA3046000
ActiveBrookline Water and Sewer Division
At a glance
Brookline Water and Sewer Division (PWSID MA3046000) is an active community water system in Norfolk County, Massachusetts. It reports serving 63,191 people through 9,013 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 6 are health-based, and the most recent began in January 1999.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
63,191
Service connections
9,013
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Brookline Water and Sewer Division compare with other water systems in Norfolk County?
By EPA's size categories, Brookline Water and Sewer Division is a large system (10,001 to 100,000 people). Norfolk County has 58 active public water systems, and Brookline Water and Sewer Division is the 2nd-largest of them by population served. Its population served is about 4.3 times the county average of 14,602 people per system, and accounts for 7.5% of the 846,897 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 Brookline Water and Sewer Division is about 9.4 times 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 Brookline Water and Sewer Division?
EPA lists Brookline Water and Sewer Division 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. 30 of the 58 active systems in Norfolk County (52%) are also owned by a local government.
Does Brookline Water and Sewer Division have drinking water violations?
EPA's records list 7 violations for this system; 6 are health-based, and the most recent began in January 1999. The violations listed here began between August 1982 and January 1999. By type: 5 required treatment not met, 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 4 as resolved and 3 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 |
|---|---|---|---|---|
| 1999-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1994-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1993-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1992-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1992-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1992-01-01 | Required treatment not metFailure to Filter (SWTR) · code 42 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 1982-08-31 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
All 7 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.
Brookline Water and Sewer Division: frequently asked questions
Who runs Brookline Water and Sewer Division?
Brookline Water and Sewer Division (PWSID MA3046000) is a community water system owned by a local government. It is regulated by the MA state drinking water program.
How many people does Brookline Water and Sewer Division serve?
Brookline Water and Sewer Division reports serving 63,191 people through 9,013 service connections in Norfolk County, Massachusetts.
Where does Brookline Water and Sewer Division 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 Brookline Water and Sewer Division have any drinking water violations?
EPA's records list 7 violations for this system; 6 are health-based, and the most recent began in January 1999. 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 Brookline Water and Sewer Division'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 7 violations for this system; 6 are health-based, and the most recent began in January 1999. For current results, consult the system's annual water quality report, EPA ECHO, or the MA state drinking water program.
Where can I find Brookline Water and Sewer Division's water quality report?
As a community water system, Brookline Water and Sewer Division 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 Norfolk County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Quincy Water Dept. (MWRA) | Norfolk | 106,000 | Community | Purchased surface water |
| Weymouth Water Department | Norfolk | 57,871 | Community | Surface water |
| Randolph/Holbrook Joint Water Board | Norfolk | 46,519 | Community | Surface water |
| Dedham Westwood Water Dist. | Norfolk | 41,630 | Community | Purchased surface water |
| Braintree Water and Sewer Dept. | Norfolk | 39,143 | Community | Surface water |
| Bluedrop Water @ St Bernadette Church | Norfolk | 35,114 | Transient non-community | Purchased 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, “Brookline Water and Sewer Division, PWSID MA3046000, Massachusetts”, https://aquacensus.com/water-systems/massachusetts/brookline-water-and-sewer-division-ma3046000 (data as of October 1, 2026).