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 |
| HEREFORD GOLF CENTER | MONKTON, MD | 52 | 2 | — |
| BIBLE FELLOWSHIP CHURCH OF REISTERSTOWN | REISTERSTOWN, MD | 52 | 1 | — |
| EVERGREEN CHURCH-CHURCH OF THE BRETHEREN | REISTERSTOWN, MD | 52 | 0 | — |
| U-5 FOODS- SMITHVILLE | FEDERALSBURY, MD | 52 | 5 | — |
| HUGHESVILLE SHELTER/ ANGEL WATCH | HUGHESVILLE, MD | 52 | 16 | — |
| LOYOLA RETREAT HOUSE | FAULKNER, MD | 52 | 8 | — |
| WARWICK MANOR BEHAVIORAL HEALTH | SECRETARY, MD | 52 | 55 | — |
| BROOKSIDE INN | FREDERICK, MD | 52 | 12 | — |
| CATOCTIN CREEK NATURE CENTER | LIBERTYTOWN, MD | 52 | 3 | — |
| WEBSTER UNITED CHURCH OF CHRIST | HAVRE DE GRACE, MD | 52 | 6 | — |
| DOUBLE TAP TAVERN | KENNEDYVILLE, MD | 52 | 30 | — |
| DOWNSVILLE GENERAL STORE | WILLIAMSPORT, MD | 52 | 0 | — |
| SALISBURY BAPTIST CHURCH | MD | 52 | 49 | — |
| RAMBLER MOTEL | BERLIN, MD | 52 | 0 | — |
| WOR CO JWS PARK CONCESSION STAND | SNOW HILL, MD | 52 | 8 | — |
| FLINTSTONE MENNONITE SCHOOL | FLINTSTONE, MD | 51 | 23 | — |
| FISHING CREEK POOL | LA PLATA, MD | 51 | 10 | — |
| ST ANDREW THE FISHERMAN | MAYO, MD | 51 | 3 | — |
| CAPE ST CLAIRE IMPROVEMENT ASSOCIATION | ANNAPOLIS, MD | 51 | 9 | — |
| KINGSVILLE ATHLETIC FIELD HOUSE | UPPER FALLS, MD | 51 | 0 | — |
| BPD GUNPOWDER TRAINING CENTER | GLEN ARM, MD | 51 | 0 | — |
| CAMP MARDELA MAIN CAMP | DENTON, MD | 51 | 2 | — |
| ABC CHILD DEVELOPMENT CENTER | WESTMINSTER, MD | 51 | 8 | — |
| SAINT LUKES UNITED METHODIST CHURCH | RIDGE, MD | 51 | 0 | — |
| MEADOWBROOK COURT | KELTON, MD | 50 | 123 | — |
| TWIN ARCH MOBILE HOME PARK | STEVENSVILLE, MD | 50 | 33 | — |
| WOODLAWN MOBILE HOME PARK - OLD | PORT DEPOSIT, MD | 50 | 186 | — |
| MAYBELLE MANOR MOBILE HOME PARK | LANCASTER, MD | 50 | 10 | — |
| LAUREL WATER SUPPLY | INDIAN HEAD, MD | 50 | 52 | — |
| PARKWAY SUBDIVISION WATER COMPANY | LA PLATA, MD | 50 | 117 | — |
| WEST WHITE PLAINS | WALDORF, MD | 50 | 51 | — |
| JEMALS BAY 50 PLAZA | WASHINGTON, MD | 50 | 167 | — |
| CHRISTOPHERS FINE FOODS | TRACYS LANDING, MD | 50 | 13 | — |
| HAPPY HOUSE CARRYOUT | EDGEWATER, MD | 50 | 4 | — |
| CLARKS LANDING -WELL #2 | SHADY SIDE, MD | 50 | 9 | — |
| BAY COMMUNITY HEALTH | SHADYSIDE, MD | 50 | 8 | — |
| YMCA CAMP LETTS WELL # 2 | WASHINGTON, MD | 50 | 23 | — |
| LAKE SHORE ATHLETIC COMPLEX | ANNAPOLIS, MD | 50 | 0 | — |
| LOCH HAVEN PARK | ANNAPOLIS, MD | 50 | 0 | — |
| WEST RIVER SAILING CLUB | GALESVILLE, MD | 50 | 14 | — |
| ANNAPOLIS FRIENDS MEETING | ANNAPOLIS, MD | 50 | 0 | — |
| HIDDEN HARBOUR MARINA- WELL #1 | DEALE, MD | 50 | 17 | — |
| UNION MEMORIAL UMC | DAVIDSONVILLE, MD | 50 | 40 | — |
| BODKIN YACHT CLUB WELL 2 - PIERS | PASADENA, MD | 50 | 8 | — |
| DAVIDSONVILLE PARK | ANNAPOLIS, MD | 50 | 0 | — |
| ANNAPOLIS SEVENTH DAY ADVENTIST | COLUMBIA, MD | 50 | 6 | — |
| 7-11 HARWOOD | FORESTVILLE, MD | 50 | 6 | — |
| VENTNOR MARINA | PASADENA, MD | 50 | 0 | — |
| CHILD CARE ACADEMY OF WINDSOR | BALTIMORE, MD | 50 | 51 | — |
| AMERICAN LEGION #116 REISTERSTOWN | REISTERSTOWN, MD | 50 | 0 | — |