F13/100
DARTMOUTH WATER DIVISION — Water Quality Report 2026
Serving 24,630 people · Massachusetts
Water Source
Purchased Surface Water
County
—
System ID
MA4072000
Violations
20
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
2
Health-Related
TIER 3Resolved
Failed to conduct Level 1 Assessment
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 2, 2024Rule: Consumer Confidence RuleEnforcement: Formal — state order issued
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
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 DARTMOUTH WATER DIVISION
Is DARTMOUTH WATER DIVISION water safe to drink?
DARTMOUTH WATER DIVISION water receives a grade of F (13/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 20 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has DARTMOUTH WATER DIVISION detected?
69 contaminants were tested in DARTMOUTH WATER DIVISION's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DARTMOUTH WATER DIVISION have any EPA violations?
Yes, DARTMOUTH WATER DIVISION has 20 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, Other. 16 are health-based violations.
How many people does DARTMOUTH WATER DIVISION serve?
DARTMOUTH WATER DIVISION serves approximately 24,630 people, Massachusetts. The system provides water to 1 community: Dartmouth.
What type of water does DARTMOUTH WATER DIVISION provide?
DARTMOUTH WATER 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 MA4072000.
How does DARTMOUTH WATER DIVISION compare to other utilities in Massachusetts?
DARTMOUTH WATER DIVISION scores 13/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Massachusetts state page for a full comparison of water systems.