Public Water Systems
3,215 active public water systems in MD, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Calvert Gateway & McDonalds # 16243 | Crofton, MD | 25 | 3 | - |
| Island Creek Marina (Bills Boat Rental) | Broomes Island, MD | 25 | 0 | - |
| Hardesty Grocery-Sunderland | Sunderland, MD | 25 | 0 | - |
| Lens Market and Marina | Broomes Island, MD | 25 | 10 | - |
| Dunkirk Village Shopping Center | Dunkirk, MD | 25 | 18 | - |
| Cove Point Park Snack Bar | Prince Frederick, MD | 25 | 3 | - |
| Landmark Baptist Temple | Huntingtown, MD | 25 | 0 | - |
| Cove Point Park Maintenance Bldg | Prince Frederick, MD | 25 | 3 | - |
| Howlin Building | Dunkirk, MD | 25 | 11 | - |
| Cypress Swamp Nature Center | Prince Frederick, MD | 25 | 1 | - |
| Bge Field | Prince Frederick, MD | 25 | 0 | - |
| Dog Park (Grays Road) Recreation Area | Prince Frederick, MD | 25 | 0 | - |
| Kings Landing Comfort Station | Huntingtown, MD | 25 | 0 | - |
| Calvert Hospice/Burnett Hospice House | Prince Frederick, MD | 25 | 0 | - |
| 4-H Park Main Well | Denton, MD | 25 | 4 | - |
| Road House 313 | Wye Mills, MD | 25 | 1 | - |
| Choptank Marina | Denton, MD | 25 | 6 | - |
| Camp Todd Choptank Lodge | Newark, MD | 25 | 0 | - |
| Camp Todd Lakeview Lodge | Newark, MD | 25 | 0 | - |
| Camp Todd Whispering Pines | Newark, MD | 25 | 0 | - |
| Smiles by Higgins and Holsinger | Denton, MD | 25 | 13 | - |
| Messiah Lutheran Nursery | Sykesville, MD | 25 | 0 | - |
| New Windsor Quarry Maintenance Shop | Union Bridge, MD | 25 | 1 | - |
| New Hope Church | New Windsor, MD | 25 | 6 | - |
| Keysville Grace United Church of Christ | Detour, MD | 25 | 17 | - |
| Lineboro Vol. Fire Department | Lineboro, MD | 25 | 16 | - |
| Whistle Stop | Finksburg, MD | 25 | 4 | - |
| Bell Manor Progr Girl Scouts | Conowingo, MD | 25 | 5 | - |
| Country Store | North East, MD | 25 | 9 | - |
| Hammers Bar & Grill | Warwick, MD | 25 | 16 | - |
| Serenity Health LLC | Aberdeen, MD | 25 | 10 | - |
| Anchorage Enterprise Ltd | North East, MD | 25 | 0 | - |
| Appleton Plaza | Elkton, MD | 25 | 12 | - |
| Old South Smokehouse | Port Deposit, MD | 25 | 12 | - |
| Bakers Restaurant | Ekton, MD | 25 | 13 | - |
| Sonetta Community Market | Port Deposit, MD | 25 | 23 | - |
| Friendship Circle Dining Hall-Bell Manor | Conowingo, MD | 25 | 7 | - |
| Brantwood Liquors and Country Store | Elkton, MD | 25 | 11 | - |
| Camp Shadow Brook Dining Hall | Conowingo, MD | 25 | 1 | - |
| Elk Neck Park Stoney Point Camp Store | North East, MD | 25 | 2 | - |
| Chesapeake Bay Club, Rising Sun Course | MD | 25 | 22 | - |
| Charlestown Manor Snack Bar | North East, MD | 25 | 4 | - |
| Stone House Res. and Ingo Landing Rest. | Conowingo, MD | 25 | 7 | - |
| Craft Haven Inc | Perryville, MD | 25 | 8 | - |
| Elkview Shores | Earleville, MD | 25 | 25 | - |
| Conowingo Pizza | Conowingo, MD | 25 | 20 | - |
| Rookies Hilltop Inn | Elkton, MD | 25 | 22 | - |
| Locust Point Marina Camp | Elkton, MD | 25 | 5 | - |
| Milburns Orchards Market | Elkton, MD | 25 | 32 | - |
| Moose Lodge #851- Bar Only | Elkton, MD | 25 | 28 | - |