PlainWater

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.

Population Violations Health Violations Name
System Name Location Population Violations PFAS
Beach Harbor Grasonville, MD 481 14 -
Southern Calvert Baptist Church Lusby, MD 480 0 -
Town of Cecilton Cecilton, MD 477 39 -
Lothian Elementary Pasadena, MD 476 6 -
Oakville Elementary School Loveville, MD 475 23 Clean
B.t.r. Hampstead (Black and Decker) Towson, MD 472 46 -
Huntingtown Professional Center, LLC Huntingtown, MD 470 36 -
Darnestown Swim and Raquet Club Gaithersburg, MD 470 13 -
Glen Meadows Retirement Community Glen Arm, MD 468 152 -
Liberty Elementary Frederick, MD 466 20 -
Henson Boy Scout Reservation Seaford, MD 465 1 -
North Harford Elementary Bel Air, MD 464 33 -
Patuxent Presbyterian Church California, MD 464 0 -
The Calverton School Huntingtown, MD 461 50 -
Misty Meadows 1 / Highland Hills M.H.P. Street, MD 460 127 -
Town of Vienna Vienna, MD 460 17 -
Prettyboy Elementary School Baltimore, MD 460 8 -
Town of Clear Spring Williamsport, MD 455 20 -
St. Ignatius of Loyola Catholic Church Ijamsville, MD 455 0 -
Patuxent Mobile Estates Lothian, MD 450 24 -
Gaither Manor Apartments Sykesville, MD 450 74 -
St. Andrews School Edgewater, MD 450 16 -
Dollar General #13896 Goodlettsville, MD 450 10 -
7-Eleven- Thurmont#28960 Dallas, MD 450 15 -
Bar T Mountainside Urbana, MD 450 7 -
Christian Life Center Ijamsville, MD 450 3 -
Echo Hill Camp Worton, MD 450 23 -
Dynard Elementary School Loveville, MD 450 19 -
Worcester Technical Hs & Co Boe Office Newark, MD 450 39 -
Malcolm Elementary School La Plata, MD 446 2 -
Southern Maryland Christian Academy La Plata, MD 445 32 -
Jarrettsville Elementary Bel Air, MD 445 29 -
Churchville Elementary School Bel Air, MD 441 26 -
The Barnesville School Barnesville, MD 440 59 -
Chapel District Elementary Easton, MD 440 26 -
Harbor View Newark, MD 437 49 -
Seventh District Elementary Baltimore, MD 437 17 -
Mount Airy Christian Academy Mount Airy, MD 435 25 -
Cross Point Subdivision Prince Frederick, MD 434 3 -
Echo Hill Outdoor School Worton, MD 434 16 -
Queen Annes Rest Stop 301 Chestertown, MD 430 2 -
Frontiertown Theme Park Ocean City, MD 430 1 -
Rockbridge Academy Crownsville, MD 425 45 -
Yellowfin Steak and Fish House Edgewater, MD 425 3 -
Valley Inn Lutherville, MD 425 0 -
South Carroll Swim Club Sykesville, MD 425 10 -
Camp Puhtok for Boys and Girls Monkton, MD 420 0 -
Sunnybrook Baltimore, MD 416 24 -
Elkridge Estates of Roland Park Tysons, MD 414 0 -
Metropolitan of Baltimore Tysons, MD 414 2 -
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