Water quality for ZIP code 02671
ZIP 02671 covers Northwest Harwich and Dennis Port in Barnstable County, Massachusetts, one of 47 ZIP codes in the county. 124 active public water systems serve the county; 30 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Barnstable County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Dennis Water District Dennis |
65,000 | 0 | 3.6 mi | |
| Brewster Water Department Brewster |
35,000 | 2 | 5.6 mi | |
| Yarmouth Water Department Yarmouth |
38,900 | 1 | 5.7 mi | |
| Chatham Water Department Chatham |
30,000 | 0 | 6.4 mi | |
| Orleans Water Department Orleans |
17,460 | 1 | 9.7 mi | |
| Barnstable Fire District Barnstable |
5,400 | 0 | 9.9 mi | |
| Hyannis Water System, Town of Barnstable Barnstable |
35,000 | 1 | 9.9 mi | |
| Town of Eastham Eastham |
6,199 | 0 | 13.0 mi | |
| Centerville Osterville Marstons Mills WD Barnstable |
50,000 | 2 | 14.3 mi | |
| Massasoit Hills Trailer Park Wellfleet |
120 | 1 | 15.3 mi | |
| Pleasant Water Wellfleet |
200 | 1 | 17.2 mi | |
| Cotuit Fire District Water Department Barnstable |
4,938 | 0 | 17.4 mi | |
| Wellfleet Apartments Wellfleet |
48 | 1 | 18.1 mi | |
| Beechwood Point Condos Mashpee |
112 | 1 | 18.1 mi | |
| Harborside Village Wellfleet |
165 | 0 | 18.2 mi | |
| Sea Oaks Condominiums Mashpee |
222 | 0 | 18.8 mi | |
| Wellfleet Municipal Water System Wellfleet |
750 | 1 | 18.8 mi | |
| Sandwich Water District Sandwich |
23,000 | 1 | 19.2 mi | |
| Mashpee Water District Mashpee |
36,922 | 0 | 19.9 mi | |
| Upper Cape Regional Water Cooperative Sandwich |
56,250 | 0 | 20.8 mi | |
| Otis Air National Guard Base Falmouth |
6,000 | 2 | 21.6 mi | |
| North Sagamore Water District Bourne |
4,668 | 0 | 23.4 mi | |
| Stones Throw Condos Truro |
80 | 0 | 23.5 mi | |
| Barnstable County Jail Bourne |
600 | 1 | 23.9 mi | |
| Schooner Pass Trustees Condominiums Bourne |
136 | 0 | 24.6 mi |
Non-community systems in Barnstable County (94: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Barnstable County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Massachusetts records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.