💧 ZIP Water Report

Tap water in Harwich, MA — ZIP 02645

1 public water system serving about 39,144 people.

A
Excellent

Water systems serving 02645

Harwich Water Department
PWSID MA4126000 · serves 39,144 · groundwater
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology