B66/100
BROOKLINE WATER AND SEWER DIVISION — Water Quality Report 2026
Serving 63,191 people · Massachusetts
Water Source
Purchased Surface Water
County
—
System ID
MA3046000
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1999.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About BROOKLINE WATER AND SEWER DIVISION
Is BROOKLINE WATER AND SEWER DIVISION water safe to drink?
BROOKLINE WATER AND SEWER DIVISION water receives a grade of B (66/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has BROOKLINE WATER AND SEWER DIVISION detected?
69 contaminants were tested in BROOKLINE WATER AND SEWER DIVISION's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BROOKLINE WATER AND SEWER DIVISION have any EPA violations?
Yes, BROOKLINE WATER AND SEWER DIVISION has 7 EPA violation(s) on record, with the most recent in 1999. Violation types include TT, MCL, Other. 6 are health-based violations.
How many people does BROOKLINE WATER AND SEWER DIVISION serve?
BROOKLINE WATER AND SEWER DIVISION serves approximately 63,191 people, Massachusetts. The system provides water to 1 community: Brookline.
What type of water does BROOKLINE WATER AND SEWER DIVISION provide?
BROOKLINE WATER AND SEWER DIVISION sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MA3046000.
How does BROOKLINE WATER AND SEWER DIVISION compare to other utilities in Massachusetts?
BROOKLINE WATER AND SEWER DIVISION scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Massachusetts state page for a full comparison of water systems.