Water Quality in Onset, MA
2 water systems serving 260,440 people
City Overview
Average lead detection across Onset water systems is 3.0 ppb (Low). The EPA action level is 15 ppb.
Violation Summary
| Total violations on record | 73 |
| Health-based violations | 16 |
| Lead action level violations | 0 |
| Open (unresolved) violations | 0 |
Water Systems in Onset
Frequently Asked Questions
Is Onset tap water safe to drink?
Onset tap water meets EPA standards for most contaminants. Review the individual water system pages below for the latest lead sample results and violation history.
What is the water quality in Onset, Massachusetts?
Onset has 2 public water systems serving approximately 260,440 people. The average lead level across sampled systems is 3.0 ppb. There are 73 total violations on record.
Does Onset have lead in the water?
EPA monitoring data shows an average lead detection of 3.0 ppb across Onset's water systems. The EPA action level is 15 ppb. No lead action level violations are currently reported.
How many water utilities serve Onset?
2 public water systems are registered in Onset, Massachusetts with the EPA Safe Drinking Water Information System. Together they serve approximately 260,440 people.