Is South Grafton, Massachusetts tap water safe?
2 water systems report serving South Grafton. 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.
D
Grafton Water District
Serves 10,925 people · Groundwater · Full report →
No health-based violations in the last 5 years; 48 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2025).
B
South Grafton Water District
Serves 3,262 people · Surface water · Full report →
No health-based violations in the last 5 years; 5 monitoring/reporting violations; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).