Public Water Systems
3,215 active water systems in MD.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| WASHINGTON SUBURBAN SANITARY COMMISSION | LAUREL, MD | 1,900,000 | 2 | Detected |
| CITY OF BALTIMORE | BALTIMORE, MD | 1,600,000 | 73 | Detected |
| GLEN BURNIE-BROADNECK | MILLERSVILLE, MD | 290,606 | 82 | Detected |
| HOWARD COUNTY D.P.W. DISTRIBUTION | COLUMBIA, MD | 286,158 | 20 | Detected |
| HARFORD COUNTY D.P.W. | ABINGDON, MD | 104,567 | 27 | Clean |
| CITY OF HAGERSTOWN | HAGERSTOWN, MD | 92,200 | 14 | Clean |
| WALDORF - CHARLES COUNTY DPW | LA PLATA, MD | 84,296 | 19 | Detected |
| NEW DESIGN - FREDERICK COUNTY | FREDERICK, MD | 74,911 | 28 | Detected |
| CROFTON-ODENTON | MILLERSVILLE, MD | 62,986 | 9 | Detected |
| FORT GEORGE G. MEADE | FORT MEADE, MD | 62,234 | 64 | Clean |
| CITY OF FREDERICK | FREDERICK, MD | 54,000 | 11 | Detected |
| CITY OF ROCKVILLE | MD | 52,000 | 220 | Detected |
| LEXINGTON PARK | CALIFORNIA, MD | 43,030 | 31 | Clean |
| CITY OF WESTMINSTER | WESTMINSTER, MD | 35,256 | 70 | Detected |
| CITY OF ANNAPOLIS | ANNAPOLIS, MD | 35,000 | 11 | Clean |
| CITY OF SALISBURY | SALISBURY, MD | 30,343 | 18 | Detected |
| TOWN OF OCEAN CITY | OCEAN CITY, MD | 30,000 | 26 | Detected |
| CITY OF CUMBERLAND | CUMBERLAND, MD | 27,039 | 15 | Clean |
| CITY OF BOWIE | BOWIE, MD | 25,000 | 6 | Detected |
| FREEDOM DISTRICT | WESTMINSTER, MD | 24,867 | 81 | Detected |
| MGM NATIONAL HARBOR | MD | 24,000 | 2 | Detected |
| BROAD CREEK | MILLERSVILLE, MD | 23,179 | 8 | Detected |
| PATUXENT NAVAL AIR STATION (NAVFAC-WASH) | PATUXENT RIVER, MD | 22,000 | 164 | Detected |
| CITY OF ABERDEEN | ABERDEEN, MD | 18,006 | 5 | Detected |
| EASTON UTILITIES | EASTON, MD | 17,357 | 8 | Detected |
| TOWN OF ELKTON | ELKTON, MD | 15,625 | 31 | Detected |
| CITY OF CAMBRIDGE WATER | CAMBRIDGE, MD | 15,000 | 6 | Detected |
| CHAPEL HILL - ABERDEEN PROVING GROUNDS | ABERDEEN, MD | 15,000 | 14 | Clean |
| CITY OF HAVRE DE GRACE | HAVRE DE GRACE, MD | 14,000 | 126 | Clean |
| MARYLAND AMERICAN WATER COMPANY | HOPEWELL, MD | 13,200 | 12 | Detected |
| OCEAN PINES | BERLIN, MD | 11,890 | 73 | Detected |
| TOWN OF LA PLATA | LA PLATA, MD | 11,535 | 33 | Clean |
| CITY OF FROSTBURG | MD | 11,000 | 18 | Clean |
| ASSATEAGUE NATIONAL PARK NORTH BEACH | LEESPORT, MD | 10,020 | 0 | — |
| TOWN OF MOUNT AIRY | MOUNT AIRY, MD | 9,890 | 156 | Detected |
| CHESAPEAKE RANCH ESTATES | LUSBY, MD | 9,500 | 11 | Clean |
| STEVENSVILLE | STEVENSVILLE, MD | 9,155 | 19 | Detected |
| U.S. NAVAL ACADEMY | ANNAPOLIS, MD | 8,700 | 19 | Detected |
| TOWN OF NORTH EAST | NORTH EAST, MD | 8,600 | 168 | Detected |
| TOWN OF WALKERSVILLE | WALKERSVILLE, MD | 8,440 | 34 | Clean |
| FORT DETRICK | FREDERICK, MD | 7,900 | 109 | Detected |
| CITY OF BRUNSWICK | BRUNSWICK, MD | 7,312 | 17 | Clean |
| CITY OF TANEYTOWN | TANEYTOWN, MD | 6,750 | 99 | Detected |
| TOWN OF HAMPSTEAD | HAMPSTEAD, MD | 6,600 | 21 | Detected |
| BRYANS ROAD | LA PLATA, MD | 6,260 | 11 | Clean |
| TOWN OF THURMONT | THURMONT, MD | 6,200 | 99 | Detected |
| TOWN OF POOLESVILLE | POOLESVILLE, MD | 6,005 | 144 | Detected |
| MYSTIC HARBOUR | BERLIN, MD | 5,945 | 26 | Clean |
| CITY OF FRUITLAND | FRUITLAND, MD | 5,907 | 12 | Detected |
| EASTERN REGION ALLEGANY DISTRIB. SYSTEM | CUMBERLAND, MD | 5,703 | 17 | Clean |
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