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.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| CHESAPEAKE CITY NORTH | MD0002273 | Maryland | Community | 500 |
| DOWNS MEMORIAL PARK WELL # 2 | MD1021560 | Maryland | Transient Non-Community | 500 |
| SOUTHERN MARYLAND CORRECTIONAL | MD0001460 | Maryland | Community | 500 |
| RAMBLIN PINES CAMPGROUND | MD1061078 | Maryland | Transient Non-Community | 500 |
| POOLESVILLE-COMMISSIONERS | MD0002669 | Maryland | Community | 500 |
| TOWN OF SUDLERSVILLE | MD0170024 | Maryland | Community | 497 |
| NAVAL SUPPORT FACILITY, STUMP NECK ANNEX | MD1080039 | Maryland | Non-Transient Non-Community | 495 |
| LORD CALVERT TRAILER PARK | MD0002535 | Maryland | Community | 495 |
| THE BARN @ PLEASANT ACRES | MD1041275 | Maryland | Transient Non-Community | 494 |
| ST. PETERS SCHOOL | MD1080027 | Maryland | Non-Transient Non-Community | 493 |
| TOWN & COUNTRY MOBILE HOME PAR | MD0002610 | Maryland | Community | 492 |
| LISBON ELEMENTARY SCHOOL | MD1130006 | Maryland | Non-Transient Non-Community | 492 |
| GREAT OAK LANDING MARINA | MD1141025 | Maryland | Transient Non-Community | 490 |
| YELLOW SPRINGS ELEMENTARY | MD1100036 | Maryland | Non-Transient Non-Community | 486 |
| SHADY ACRES MOBILE HOME PARK | GA1270017 | Maryland | Community | 484 |
| AMERICAN LEGION POST #29 | MD1051003 | Maryland | Transient Non-Community | 483 |
| CALVERT CLIFFS NUCLEAR - PROTECTED AREA | MD1040002 | Maryland | Non-Transient Non-Community | 482 |
| TOWN OF BETTERTON | MD0140001 | Maryland | Community | 481 |
| SUNDERLAND ELEMENTARY SCHOOL | MD1040041 | Maryland | Non-Transient Non-Community | 481 |
| BEACH HARBOR | MD1170001 | Maryland | Community | 481 |
| SOUTHERN CALVERT BAPTIST CHURCH | MD1041161 | Maryland | Non-Transient Non-Community | 480 |
| THE WILLOUGHBY WATER WORKS COM | MD0120018 | Maryland | Community | 480 |
| THE WILLOUGHBY WATER WORKS COM | MD0002780 | Maryland | Community | 480 |
| TOWN OF CECILTON | MD0070004 | Maryland | Community | 477 |
| LOTHIAN ELEMENTARY | MD1020020 | Maryland | Non-Transient Non-Community | 476 |
| ST LOUIS CHURCH & SCHOOL | MD1130007 | Maryland | Non-Transient Non-Community | 475 |
| OAKVILLE ELEMENTARY SCHOOL | MD1180037 | Maryland | Non-Transient Non-Community | 475 |
| B.T.R. HAMPSTEAD (BLACK AND DECKER) | MD1060004 | Maryland | Non-Transient Non-Community | 472 |
| DARNESTOWN SWIM AND RAQUET CLUB | MD1151009 | Maryland | Transient Non-Community | 470 |
| GREENVIEW KNOLLS WATER CO INC | MD0002448 | Maryland | Community | 470 |
| HUNTINGTOWN PROFESSIONAL CENTER, LLC | MD1040098 | Maryland | Transient Non-Community | 470 |
| BRODSKYS MODERN TRAILER PARK | MD0002737 | Maryland | Community | 468 |
| SEVERN MOBILE HOME PARK | MD0020206 | Maryland | Community | 468 |
| GLEN MEADOWS RETIREMENT COMMUNITY | MD0030208 | Maryland | Community | 468 |
| LIBERTY ELEMENTARY | MD1100016 | Maryland | Non-Transient Non-Community | 466 |
| CECIL CO SCHOOL OF TECHNOLOGY | MD1070008 | Maryland | Non-Transient Non-Community | 465 |
| PATUXENT PRESBYTERIAN CHURCH | MD1181314 | Maryland | Transient Non-Community | 464 |
| NORTH HARFORD ELEMENTARY | MD1120028 | Maryland | Non-Transient Non-Community | 464 |
| THE CALVERTON SCHOOL | MD1040022 | Maryland | Community | 461 |
| MISTY MEADOWS 1 / HIGHLAND HILLS M.H.P. | MD0070247 | Maryland | Community | 460 |
| TOWN OF VIENNA | MD0090008 | Maryland | Community | 460 |
| PRETTYBOY ELEMENTARY SCHOOL | MD1030028 | Maryland | Non-Transient Non-Community | 460 |
| SEVEN ELEVEN FOOD STORE | MD1221163 | Maryland | Transient Non-Community | 455 |
| ST. IGNATIUS OF LOYOLA CATHOLIC CHURCH | MD1101363 | Maryland | Transient Non-Community | 455 |
| TOWN OF CLEAR SPRING | MD0210005 | Maryland | Community | 455 |
| TRAILER RANCHO | MD0120216 | Maryland | Community | 450 |
| GREAT MILLS ANNEX | MD1180068 | Maryland | Non-Transient Non-Community | 450 |
| TYSON FOODS, INC. | MD1230052 | Maryland | Non-Transient Non-Community | 450 |
| ROBINHOOD DELL MOBILE HOMES,IN | MD0002469 | Maryland | Community | 450 |
| GAITHER MANOR APARTMENTS | MD0060202 | Maryland | Community | 450 |