Browse Water Systems

7,795 public water systems in MD.

Public Water Systems Database

Browse 7,795 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
CAPE SAINT CLAIRE ELEMENTARY MD1020004 Maryland Non-Transient Non-Community 740
MCDONALDS OF LISBON MD1131080 Maryland Transient Non-Community 735
HAGERSTOWN SPEEDWAY MD1211036 Maryland Transient Non-Community 732
GIBSON ISLAND-ANNE ARUNDEL CO MD0002434 Maryland Community 732
RISING SUN ELEMENTARY MD1070027 Maryland Non-Transient Non-Community 726
TOWN OF OXFORD MD0200005 Maryland Community 726
FAIRLEE MD0140003 Maryland Community 725
BUTTONWOOD BEACH RV RESORT MD1071025 Maryland Transient Non-Community 725
MCDONALDS 16243 MD1041207 Maryland Transient Non-Community 720
RUNWAY LIQUORS MD1201018 Maryland Transient Non-Community 720
DUNKIN GAMBRILLS MD1021776 Maryland Transient Non-Community 718
HUNTING QUARTERS MD0180038 Maryland Community 715
SAVORY DELI AND MARKET MD1121114 Maryland Transient Non-Community 714
LOWER SHORE TOURISM CENTER MD1231145 Maryland Transient Non-Community 713
HARFORD COMMUNITY COLLEGE MD1120064 Maryland Non-Transient Non-Community 713
MT. HARMONY ELEMENTARY SCHOOL MD1040030 Maryland Non-Transient Non-Community 706
TOWN OF QUEENSTOWN MD0170003 Maryland Community 705
CLARKSVILLE ELEMENTARY SCHOOL MD1130012 Maryland Non-Transient Non-Community 700
SYLVAN SHORES SERVICES CO. MD0020037 Maryland Community 700
JIFFY MART FINKSBURG MD1061202 Maryland Transient Non-Community 700
REVEL DOWNS M ROTHA MEL MD0002873 Maryland Community 700
NORTHROP GRUMMAN SYSTEMS CORPORATION MD1070052 Maryland Non-Transient Non-Community 700
HARRIET ELIZABETH BROWN COMMUNITY CENTER MD1041203 Maryland Transient Non-Community 700
PATAPSCO STATE PARK ( MCKELDIN A) MD1061072 Maryland Transient Non-Community 700
CLARYSVILLE INN MD1011011 Maryland Transient Non-Community 700
CONOWINGO-SUSQUEHANNA POWER CO MD0002288 Maryland Community 700
ROYAL FARMS STORE 214 PA7670964 Maryland Transient Non-Community 700
ROLLING ACRES MD0180017 Maryland Community 699
ST MICHAELS CATHOLIC CHURCH MD1131114 Maryland Non-Transient Non-Community 697
PROSPECT MILL ELEMENTARY MD1120032 Maryland Non-Transient Non-Community 691
MOUNT AETNA MD0210015 Maryland Community 688
CALVERT MIDDLE SCHOOL MD1040018 Maryland Non-Transient Non-Community 675
MARTINGHAM UTILITIES COOPERATIVE MD0200004 Maryland Community 675
UPPER MARLBORO MD0002786 Maryland Community 674
TOWN OF CHESAPEAKE CITY [FORMERLY SOUTH] MD0070006 Maryland Community 673
PINEY POINT MD0180034 Maryland Community 672
GLENWOOD LIBRARY MD1131320 Maryland Transient Non-Community 671
CATOCTIN MOUNTAIN NAT. PARK-MISTY MOUNT MD1101033 Maryland Transient Non-Community 668
FOLLY QUARTER MIDDLE SCHOOL MD1130028 Maryland Non-Transient Non-Community 667
PINEY POINT ELEMENTARY SCHOOL MD1180040 Maryland Non-Transient Non-Community 665
MOUNT SAVAGE SCHOOL MD1010003 Maryland Non-Transient Non-Community 665
SCIENTISTS CLIFFS SERVICE CO I MD0002677 Maryland Community 651
EAST COAST FUEL, LLC MD1221116 Maryland Transient Non-Community 650
SANDYMOUNT ELEMENTARY MD1060037 Maryland Non-Transient Non-Community 650
LETTIE MARSHALL DENT ELEMENTARY MD1180027 Maryland Non-Transient Non-Community 650
DAVIDSONVILLE ELEMENTARY MD1020012 Maryland Non-Transient Non-Community 650
FRIENDSVILLE CITY WATER CO MD0002405 Maryland Community 650
DARES BEACH WATER COMPANY MD0002687 Maryland Community 644
CHESAPEAKE BEACH MD0002270 Maryland Community 640
STEVENSVILLE MIDDLE SCHOOL MD1170019 Maryland Non-Transient Non-Community 640