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 |
| Irish Pub Next Door | Severna Park, MD | 26 | 24 | - |
| Woodland Beach Community Assoc. | Severn, MD | 26 | 27 | - |
| Hardesty Funeral Home | Annapolis, MD | 26 | 2 | - |
| South County Deale Moose Lodge | Shady Side, MD | 26 | 18 | - |
| Gunpowder Falls St Pk Days Cove Env. Edu | Kingsville, MD | 26 | 1 | - |
| Choptank River Yacht Club | Denton, MD | 26 | 0 | - |
| A+m Enterprises Dba Shore Country Store | Preston, MD | 26 | 0 | - |
| Millers UMC - Social (Food) Hall | Manchester, MD | 26 | 3 | - |
| Millers UMC | Manchester, MD | 26 | 13 | - |
| Russell Hall Seafood | Fishing Creek, MD | 26 | 0 | - |
| Top of the Hill Manor Assisted Living | Street, MD | 26 | 3 | - |
| St. James Um Church | West Friendship, MD | 26 | 0 | - |
| Redgate Properties, LLC | Los Angeles, MD | 26 | 21 | - |
| Drurys Marina | Ridge, MD | 26 | 6 | - |
| Ebenezer A.m.e. Church | Mechanicsville, MD | 26 | 0 | - |
| Morgantown Water Company, Inc. | Newburg, MD | 25 | 35 | - |
| Edgemeade Road Re, LLC. | MD | 25 | 123 | - |
| Church Hill Condo, Inc. (the Pond) | Church Hill, MD | 25 | 3 | - |
| Bayview Water Company | Claiborne, MD | 25 | 8 | - |
| Four Seasons Park Inc. | Ocean City, MD | 25 | 96 | - |
| Diplomat Motel | Cresaptown, MD | 25 | 5 | - |
| Dogwood Flat Hunting, Fishing Club Inc | Barton, MD | 25 | 0 | - |
| Vanmeters Gas and Groceries | Flintstone, MD | 25 | 11 | - |
| Broadwater Addition Water Supply | Cumberland, MD | 25 | 0 | - |
| Shaw Mansion | Barton, MD | 25 | 1 | - |
| Flintstone Vfd | Flintstone, MD | 25 | 0 | - |
| Jennifers Desserts , Inc | Cumberland, MD | 25 | 0 | - |
| Hartge Yacht Harbor | Galesville, MD | 25 | 59 | - |
| Kaufmanns Office Building | Queenstown, MD | 25 | 35 | - |
| American Legion #277 | Pasadena, MD | 25 | 0 | - |
| Gambrills Athletic Club | Gambrills, MD | 25 | 3 | - |
| Tuggies Tavern | Pasadena, MD | 25 | 1 | - |
| VFW #2462 | Pasadena, MD | 25 | 1 | - |
| Joes Seafood | Stevensville, MD | 25 | 3 | - |
| Provinces Park | Annapolis, MD | 25 | 1 | - |
| Shady Side Park | Annapolis, MD | 25 | 21 | - |
| Bell Branch Athletic Complex | Annapolis, MD | 25 | 7 | - |
| Hope St Mark United Methodist Church | Edgewater, MD | 25 | 1 | - |
| Longpoint Improvement Association | Pasadena, MD | 25 | 3 | - |
| Londontowne Community Hall | Edgewater, MD | 25 | 5 | - |
| Riva Area Park | Annapolis, MD | 25 | 0 | - |
| Galesville Community Center | Galesville, MD | 25 | 11 | - |
| The Cannon Club | Lothian, MD | 25 | 4 | - |
| Purnell Armory - MD Army National Guard | Glen Arm, MD | 25 | 28 | - |
| Baltimore County Animal Services | Baldwin, MD | 25 | 9 | - |
| Congregation Rosh Pina | Denton, MD | 25 | 0 | - |
| Grauls Superthrift Market | Parkton, MD | 25 | 22 | - |
| Oregon Grille | Cockeysville, MD | 25 | 74 | - |
| Clynmalira Methodist Church | Phoenix, MD | 25 | 0 | - |
| Dunkirk Safeway Store #1129 | Malvern, MD | 25 | 71 | - |