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 | — |