Water quality for ZIP code 04431
Hancock County, Maine, one of 40 ZIP codes in the county. 206 active public water systems serve the county; 133 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 Hancock County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Silver Lake Estates Bucksport |
110 | 0 | 0.5 mi | |
| Maine Water Company Bucksport Division Bucksport |
1,700 | 0 | 5.3 mi | |
| South Penobscot Water Association Penobscot |
38 | 3 | 5.7 mi | |
| Harriman Cove Park LLC Bucksport |
45 | 1 | 6.5 mi | |
| Ellsworth Water Department Ellsworth |
3,910 | 3 | 8.9 mi | |
| Harbor View I & II Blue Hill |
40 | 1 | 10.5 mi | |
| Blue Hill Terrace Blue Hill |
60 | 3 | 12.0 mi | |
| Parker Ridge Retirement Community Blue Hill |
120 | 2 | 12.1 mi | |
| Hancock Village MHP Castine |
73 | 3 | 13.3 mi | |
| Castine Water Department Castine |
983 | 0 | 13.5 mi | |
| Birch Haven Trailer Park Hancock |
43 | 7 | 14.4 mi | |
| Sun Hancock Heights East Hancock |
158 | 0 | 14.9 mi | |
| Benjamin River Apts Sedgwick |
45 | 1 | 14.9 mi | |
| Crescent Mobile Home Park Hancock |
55 | 1 | 15.4 mi | |
| Cold Spring Water Company Lamoine |
305 | 2 | 16.7 mi | |
| Birch Tree Meadows MHP Hancock |
105 | 3 | 17.9 mi | |
| Sun Hancock Heights-West Hancock |
155 | 0 | 19.2 mi | |
| Coastal Estates Hancock |
48 | 0 | 19.2 mi | |
| Deer Run Apts Deer Isle |
60 | 2 | 21.1 mi | |
| Franklin Water Department Franklin |
420 | 4 | 21.6 mi | |
| Town of Bar Harbor Water Division Bar Harbor |
4,443 | 0 | 24.7 mi | |
| Long Pond Water District Sorrento |
308 | 2 | 25.6 mi | |
| Mount Desert Water Dist North Mount Desert |
1,623 | 4 | 25.6 mi | |
| Mount Desert Water Dist -Seal Mount Desert |
865 | 2 | 26.1 mi | |
| Southwest Harbor Water & Sewer District Southwest Hbr |
2,480 | 1 | 26.6 mi |
Non-community systems in Hancock County (176: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Hancock 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 Maine 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.