Is Merrimac, Massachusetts tap water safe?
1 water system report serving Merrimac. Your water depends on which one serves your address. Check your bill if unsure.
B
Merrimac Water Department
Serves 6,988 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).