Water quality for ZIP code 04109
ZIP 04109 covers Portland in Cumberland County, Maine, one of 38 ZIP codes in the county. 226 active public water systems serve the county; 144 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 Cumberland County
30 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Maine Water Company Freeport Division Freeport |
2,700 | 0 | 11.2 mi | |
| Scarborough Gardens Scarborough |
45 | 0 | 11.3 mi | |
| Yarmouth Water District North Yarmouth, Yarmouth |
8,000 | 1 | 11.9 mi | |
| Friendly Village of Gorham MHP Gorham |
763 | 0 | 12.4 mi | |
| Crystal Spring Estates Scarborough |
65 | 3 | 14.1 mi | |
| Dingley Spring Estates Gorham |
90 | 2 | 14.7 mi | |
| South Freeport Water District Freeport |
960 | 0 | 14.8 mi | |
| 322 Roosevelt Trail Windham |
46 | 2 | 14.9 mi | |
| Dipper Cove Association Harpswell |
55 | 0 | 15.1 mi | |
| Duck-A-Way on Casco Bay Freeport |
65 | 0 | 15.8 mi | |
| Tidal Brook Development Freeport |
35 | 0 | 15.8 mi | |
| Millstone Apartments Harpswell |
156 | 5 | 16.9 mi | |
| Wardtown Park Freeport |
150 | 0 | 18.0 mi | |
| Gray Water District Gray |
2,468 | 3 | 18.8 mi | |
| Pine Tree Mobile Estates Standish |
560 | 2 | 19.5 mi | |
| Brook Hollow Naples |
35 | 0 | 20.2 mi | |
| Midcoast Regional Redevelop Authority Brunswick |
363 | 0 | 21.2 mi | |
| Wood Pond Village Brunswick |
60 | 0 | 21.2 mi | |
| Brunswick/topsham Water District Brunswick, Topsham |
18,863 | 0 | 23.0 mi | |
| Northeastern Estates Standish |
40 | 1 | 23.2 mi | |
| Raymond Woods Townhouses Raymond |
50 | 5 | 24.0 mi | |
| New Gloucester Water District New Gloucester |
145 | 1 | 25.3 mi | |
| Portland Water District/steep Falls Standish |
480 | 0 | 27.6 mi | |
| Sandy Creek Housing Bridgton |
50 | 2 | 28.2 mi | |
| Casco Inn Residential Care Casco |
80 | 1 | 30.0 mi |
Non-community systems in Cumberland County (195: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Cumberland 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 place files or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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.