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 |
| BP SUBWAY AND ROYAL KABOB | GAMBRILLS, MD | 40 | 0 | — |
| W BUILDING | TOWSON, MD | 40 | 7 | — |
| REECE ROAD BAPTIST CHURCH | SEVERN, MD | 40 | 20 | — |
| MONKTON COUNTRY DAY CARE & PRESCHOOL | MONKTON, MD | 40 | 64 | — |
| ELIZABETH JACOB SPA , CREEKSIDE CLIPPER | PARKTON, MD | 40 | 9 | — |
| PETERS BODY SHOP INC | REISTERSTOWN, MD | 40 | 0 | — |
| PETERS UM CHURCH | DUNKIRK, MD | 40 | 17 | — |
| DUNKIRK TOWN SQUARE SHOPPING CENTER | SILVER SPRING, MD | 40 | 18 | — |
| CALVARY UNITED APOSTOLIC CHURCH | HUNTINGTOWN, MD | 40 | 18 | — |
| SNEADES HARDWARE (OWINGS) - DAVLYN LLC | HUNTINGTOWN, MD | 40 | 8 | — |
| CALVERT ELKS LODGE | PRINCE FREDERICK, MD | 40 | 23 | — |
| EMORY UMC | UPPERCO, MD | 40 | 29 | — |
| KABIK COURT | WESTMINSTER, MD | 40 | 2 | — |
| MONOCACY VALLEY VFW | TANEYTOWN, MD | 40 | 3 | — |
| LINWOOD BRETHREN CHURCH | LINWOOD, MD | 40 | 24 | — |
| SOUTH CARROLL SEVENTH DAY ADVENTIST CH. | WESTMINSTER, MD | 40 | 2 | — |
| BRANDENBURG UMC | SYKESVILLE, MD | 40 | 10 | — |
| FAIRVIEW UMC | NEW WINDSOR, MD | 40 | 9 | — |
| COUNTY LINE CANTINA | HAMPSTEAD, MD | 40 | 0 | — |
| NORTH EAST LITTLE LEAGUE | NORTH EAST, MD | 40 | 31 | — |
| CIRCLE OF CARE EARLY LEARNERS | ELKTON, MD | 40 | 99 | — |
| HIGHS DAIRY STORE #47 (NORTH EAST) | BALTIMORE, MD | 40 | 6 | — |
| HAIDEN’S COFFEE & CAFE | ELKTON, MD | 40 | 2 | — |
| THUNDERBIRD APARTMENTS | WALDORF, MD | 40 | 104 | — |
| AMERICAN LEGION POST #238 | HUGHESVILLE, MD | 40 | 6 | — |
| HUGHESVILLE COMMUNITY CENTER | PORT TOBACCO, MD | 40 | 87 | — |
| BRICK HOUSE COVE MARINA | NEWBURG, MD | 40 | 25 | — |
| STATE HIGHWAY ADMIN. | CAMBRIDGE, MD | 40 | 10 | — |
| CAMBRIDGE DORCHESTER AIRPORT | CAMBRIDGE, MD | 40 | 14 | — |
| A.E. PHILLIPS AND SON | OCEAN CITY, MD | 40 | 0 | — |
| CHURCH CREEK V.F.C. | CHURCH CREEK, MD | 40 | 10 | — |
| ELDORADO BROOKVIEW FIRE CO. | RHODESDALE, MD | 40 | 2 | — |
| MADISON BAY RESTAURANT AND CAMPGROUND | CAMBRIDGE, MD | 40 | 0 | — |
| TIDELAND PARK CAMPGROUND | WESTMINSTER, MD | 40 | 0 | — |
| LINKWOOD SALEM VOL. FIRE CO | CAMBRIDGE, MD | 40 | 0 | — |
| BAY COUNTRY BAKERY | CAMBRIDGE, MD | 40 | 0 | — |
| GREEN VALLEY SHOPPING CENTER | MONROVIA, MD | 40 | 11 | — |
| FRIENDS MEETING SCHOOL | IJAMSVILLE, MD | 40 | 22 | — |
| BUCKEYSTOWN UM CHURCH | BUCKEYSTOWN, MD | 40 | 1 | — |
| LIBERTY METHODIST CHURCH | LIBERTYTOWN, MD | 40 | 0 | — |
| BUCKEYSTOWN UNITED METHODIST CHURCH | BUCKEYSTOWN, MD | 40 | 0 | — |
| CINDYS PLACE | FROSTBURG, MD | 40 | 21 | — |
| BETHEL DAY CARE AND SCHOOL | HAVRE DE GRACE, MD | 40 | 48 | — |
| ST JAMES UAME CHURCH | DARLINGTON, MD | 40 | 6 | — |
| MOUNTAIN BRANCH GOLF COURSE CLUBHOUSE | JOPPA, MD | 40 | 61 | — |
| HARFORD COUNTY AG CENTER | BEL AIR, MD | 40 | 2 | — |
| ST. ANDREWS EPISCOPAL CHURCH - PARISH | GLENWOOD, MD | 40 | 4 | — |
| GRAVES CHAPEL UAME | MILLINGTON, MD | 40 | 25 | — |
| POOLESVILLE PUBLIC GOLF CLUB | POOLESVILLE, MD | 40 | 26 | — |
| PINKNEY PARK | CENTREVILLE, MD | 40 | 26 | — |