Browse Water Systems
7,870 public water systems in MD.
Public Water Systems Database
Browse 7,870 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.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| NEW WINDSOR | MD0002601 | Maryland | Community | 750 |
| TOWN OF PRESTON | MD0050005 | Maryland | Community | 750 |
| LYONS CREEK MOBILE HOME ESTATE | MD0002549 | Maryland | Community | 750 |
| ROTOREX COMPANY | MD1000029 | Maryland | Non-Transient Non-Community | 750 |
| SOUTHERN MIDDLE SCHOOL | MD1040038 | Maryland | Non-Transient Non-Community | 745 |
| CLIFFTON ON THE POTOMAC | MD0080009 | Maryland | Community | 744 |
| CAPE SAINT CLAIRE ELEMENTARY | MD1020004 | Maryland | Non-Transient Non-Community | 740 |
| MEADE VILLAGE | MD0020023 | Maryland | Community | 740 |
| MCDONALDS OF LISBON | MD1131080 | Maryland | Transient Non-Community | 735 |
| MARDELA MIDDLE/HIGH SCHOOL | MD1220016 | Maryland | Non-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 |
| BUTTONWOOD BEACH RV RESORT | MD1071025 | Maryland | Transient Non-Community | 725 |
| FAIRLEE | MD0140003 | Maryland | Community | 725 |
| PICCOWAXEN MIDDLE SCHOOL | MD1080023 | Maryland | Non-Transient Non-Community | 722 |
| 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 |
| HARFORD COMMUNITY COLLEGE | MD1120064 | Maryland | Non-Transient Non-Community | 713 |
| LOWER SHORE TOURISM CENTER | MD1231145 | Maryland | Transient Non-Community | 713 |
| MT. HARMONY ELEMENTARY SCHOOL | MD1040030 | Maryland | Non-Transient Non-Community | 706 |
| TOWN OF QUEENSTOWN | MD0170003 | Maryland | Community | 705 |
| 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 |
| RUNNYMEDE ELEMENTARY | MD1060058 | Maryland | Non-Transient Non-Community | 700 |
| CLARYSVILLE INN | MD1011011 | Maryland | Transient Non-Community | 700 |
| WINFIELD ELEMENTARY | MD1060050 | Maryland | Non-Transient Non-Community | 700 |
| ROYAL FARMS STORE 214 | PA7670964 | Maryland | Transient Non-Community | 700 |
| CONOWINGO-SUSQUEHANNA POWER CO | MD0002288 | Maryland | Community | 700 |
| PATAPSCO STATE PARK ( MCKELDIN A) | MD1061072 | Maryland | Transient Non-Community | 700 |
| CLARKSVILLE ELEMENTARY SCHOOL | MD1130012 | Maryland | Non-Transient Non-Community | 700 |
| SYLVAN SHORES SERVICES CO. | MD0020037 | Maryland | 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 |