Water quality for ZIP code 20640
ZIP 20640 covers Bryans Road, Indian Head, and Potomac Heights in Charles County, Maryland, one of 22 ZIP codes in the county. 172 active public water systems serve the county; 96 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Charles County
48 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Naval Support Facility, Indian Head |
3,321 | 0 | 4.1 mi | |
| Red Hill Water Company, Inc. |
200 | 1 | 4.7 mi | |
| Garden Estates Central Water |
55 | 2 | 5.4 mi | |
| Town of Indian Head |
4,100 | 0 | 5.5 mi | |
| Hunters Brooke/falcon Ridge Subd |
614 | 2 | 5.6 mi | |
| Potomac Heights |
1,800 | 0 | 6.5 mi | |
| Pomonkey Water Company Ford Heights |
125 | 1 | 7.4 mi | |
| Laurel Water Supply |
50 | 1 | 8.6 mi | |
| Green Meadows Water Company |
132 | 0 | 8.8 mi | |
| Oakwood |
45 | 1 | 9.3 mi | |
| Pomfret Estates Utilco, Inc. |
150 | 1 | 9.8 mi | |
| Bryans Road |
6,260 | 1 | 9.9 mi | |
| Hawthorne Water Supply, INC |
60 | 1 | 10.3 mi | |
| Pomunk Water Company Distribution System |
340 | 1 | 10.5 mi | |
| Avon Crest |
79 | 1 | 11.1 mi | |
| Parkway Subdivision Water Company |
50 | 1 | 11.4 mi | |
| Mount Carmel Woods |
175 | 1 | 11.5 mi | |
| Chapel Point Wds/ Jude House/ Comm Ctr |
280 | 1 | 11.9 mi | |
| Turkey Hill Water Company |
150 | 2 | 11.9 mi | |
| Thunderbird Apartments |
40 | 1 | 12.3 mi | |
| Oak Hill Water Company, LLC |
180 | 1 | 12.3 mi | |
| Spring Valley |
91 | 1 | 12.5 mi | |
| Town of la Plata |
11,535 | 0 | 12.6 mi | |
| Bel Alton |
311 | 2 | 12.7 mi | |
| West White Plains |
50 | 1 | 13.3 mi |
Non-community systems in Charles County (123: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Charles 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.