Water Quality in Merrimack, NH
26 water systems serving 29,976 people
City Overview
Average lead detection across Merrimack water systems is 32.6 ppb (Elevated). The EPA action level is 15 ppb. 7 systems have triggered action level violations.
Violation Summary
| Total violations on record | 1164 |
| Health-based violations | 150 |
| Lead action level violations | 7 |
| Open (unresolved) violations | 0 |
Water Systems in Merrimack
Frequently Asked Questions
Is Merrimack tap water safe to drink?
Some water systems in Merrimack have detected elevated lead levels. While municipal treatment meets EPA standards, lead can leach from older home plumbing. Consider using a certified filter if your home was built before 1986.
What is the water quality in Merrimack, New Hampshire?
Merrimack has 26 public water systems serving approximately 29,976 people. The average lead level across sampled systems is 32.6 ppb. There are 1164 total violations on record.
Does Merrimack have lead in the water?
EPA monitoring data shows an average lead detection of 32.6 ppb across Merrimack's water systems. The EPA action level is 15 ppb. 7 systems have triggered lead action level violations.
How many water utilities serve Merrimack?
26 public water systems are registered in Merrimack, New Hampshire with the EPA Safe Drinking Water Information System. Together they serve approximately 29,976 people.