Is East Dennis, Massachusetts tap water safe?
2 water systems report serving East Dennis. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
A
Dennis Water District
Serves 65,000 people · Groundwater · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
B
Brewster Water Department
Serves 35,000 people · Groundwater · Full report →
No health-based violations in the last 5 years; 22 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).