Water quality for ZIP code 21521
ZIP 21521 covers Moscow and Barton in Garrett County, Maryland, one of 11 ZIP codes in the county. 78 active public water systems serve the county; 8 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Garrett County
13 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Town of Grantsville |
885 | 0 | 11.7 mi | |
| Town of Kitzmiller |
370 | 0 | 13.6 mi | |
| Backbone Mountain Boys Camp |
60 | 1 | 14.0 mi | |
| White Oak Mobile Home Park |
32 | 4 | 15.0 mi | |
| Town of Accident |
300 | 2 | 15.6 mi | |
| Deep Creek Lake Water Service Area |
5,502 | 0 | 16.9 mi | |
| Town of Deer Park |
272 | 0 | 17.5 mi | |
| Town of Friendsville |
622 | 1 | 20.7 mi | |
| Town of Oakland |
1,850 | 1 | 20.8 mi | |
| Town of Mountain Lake Park |
3,000 | 0 | 20.9 mi | |
| Crellin |
230 | 0 | 25.3 mi | |
| Gorman |
150 | 0 | 25.7 mi | |
| Keysers Ridge |
63 | 0 | — |
Non-community systems in Garrett County (64: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Garrett 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.
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 Maryland 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.