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
Bonnie Brook Cambridge, MD 390 31 -
Calvert Elementary Elkton, MD 389 16 -
Mt. Hope/ Nanjemoy Elementary School La Plata, MD 385 1 -
Lake Haven Mobile Home Park Seaford, MD 384 141 -
Jarrettsville Plaza Shopping Center Jarrettsville, MD 383 2 -
Cavalier Country Prince Frederick, MD 381 3 -
White Rock Yachting Center - Well #1 Pasadena, MD 380 12 -
Maryvale Preparatory School Lutherville, MD 380 40 -
Cardinal Hickey Academy Owings, MD 380 12 -
Providence School Perryville, MD 380 16 -
Chester River Yacht Club Chestertown, MD 380 31 -
Little Flower School Great Mills, MD 380 58 -
Plim Plaza Hotel - Distribution Ocean City, MD 380 0 -
Old Forge Elementary School MD 378 36 -
Benedict La Plata, MD 376 4 -
Mayo Elementary Pasadena, MD 375 13 -
Kings Manor - White Plains Water Co, Inc Waldorf, MD 372 11 -
Leeds Elementary Elkton, MD 372 11 -
Town of Kitzmiller Mountain Lake Park, MD 370 9 -
Carroll Manor Elementary School Baltimore, MD 370 11 -
Greenbrier Elementary School MD 370 5 -
Glenwood Community Center Columbia, MD 366 6 -
Dunkin Donuts - Woodbine Ellicott City, MD 363 0 -
Calvert Cliffs Nuclear - Office Building Lusby, MD 362 80 -
Shores of Calvert Prince Frederick, MD 361 4 -
Ringgold Church of Christ Smithsburg, MD 357 6 -
St. James Academy Monkton, MD 355 57 -
Urbana Vfd Frederick, MD 355 3 -
Paradise Mennonite School Hagerstown, MD 355 66 -
Dunkin Donuts/Goodwill Annapolis, MD 354 6 -
St Ignatius Church and St Thomas Manor Port Tobacco, MD 353 7 -
Monocacy Elementary School Montgomery Village, MD 351 41 -
Hardees and Kent Island Annapolis, MD 351 0 -
Summerhill Mobile Home Park Glen Arm, MD 350 69 -
St. Leonard Prince Frederick, MD 350 10 -
Calvert Beach - Decatur Street Waldorf, MD 350 51 -
Bloomington Oakland, MD 350 26 -
Lake Shore Elementary Pasadena, MD 350 23 -
St. Stephen School Kingsville, MD 350 205 -
Gerstell Academy Cockeysville, MD 350 0 -
Tri-State Christian Academy Elkton, MD 350 63 -
Carroll Fuel (Urbana Pike) Balitmore, MD 350 14 -
West Friendship Elementary School Ellicott City, MD 350 2 -
Mechanicsville Elementary Loveville, MD 350 22 -
Redeemer Classical Christian School Kingsville, MD 346 57 -
Deale Elementary Pasadena, MD 345 13 -
Autumn Lake Healthcare Ruxton Naperville, MD 345 0 -
Assateague State Park Campground Annapolis, MD 345 1 -
Pomunk Water Company Distribution System Waldorf, MD 340 1 -
Kenwood Beach Prince Frederick, MD 338 3 -
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