D33/100
CANTON WATER DEPT — Water Quality Report 2026
Serving 22,453 people · Massachusetts
Water Source
Purchased Surface Water
County
—
System ID
MA4050000
Violations
20
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024Rule: Ground Water RuleEnforcement: Formal — state order issued
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 CANTON WATER DEPT
Is CANTON WATER DEPT water safe to drink?
CANTON WATER DEPT water receives a grade of D (33/100), which is considered poor. 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 CANTON WATER DEPT detected?
69 contaminants were tested in CANTON WATER DEPT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CANTON WATER DEPT have any EPA violations?
Yes, CANTON WATER DEPT has 20 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, TT. 11 are health-based violations.
How many people does CANTON WATER DEPT serve?
CANTON WATER DEPT serves approximately 22,453 people, Massachusetts. The system provides water to 1 community: Canton.
What type of water does CANTON WATER DEPT provide?
CANTON WATER DEPT 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 MA4050000.
How does CANTON WATER DEPT compare to other utilities in Massachusetts?
CANTON WATER DEPT scores 33/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Massachusetts state page for a full comparison of water systems.