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
Mountaindale Convenience Store # 2 Frederick, MD 812 0 -
Royal Farm Store #1 Baltimore, MD 812 0 -
Maryland Manor Mobile Home Park Lothian, MD 810 19 -
Royal Farms Store #32 Baltimore, MD 809 0 -
Dunkin Donuts Edgewater, MD 808 2 -
Calvert County Fairground Prince Frederick, MD 807 16 -
Royal Farms #62 Baltimore, MD 806 2 -
Seven Eleven # 21067 Charlotte Hall Charlotte Hall, MD 805 0 -
Point Lookout State Park North Hollywood, MD 803 0 -
Dollar General (No. 14630) Lothian, MD 800 1 -
Kaiser Permanente South Baltimore Halethorpe, MD 800 0 -
Links at Challedon Potomac, MD 800 2 -
Seven-Eleven - Hampstead Baltimore, MD 800 3 -
Hoopers Restaurant MD 800 1 -
St. Marys Bryantown Catholic School Bryantown, MD 791 20 -
Swallow Falls State Park Grantsville, MD 791 0 -
Cedarville Mobile Home Park Brandywine, MD 780 24 -
Mary Miller LLC Myersville, MD 780 0 -
Highs of Fulton Fulton, MD 758 0 -
Lyons Creek Estates Lothian, MD 750 25 -
Town of Preston Preston, MD 750 43 -
Fairmount Princess Anne, MD 750 20 -
Salisbury Christian School Salisbury, MD 750 30 -
Southern Middle School Prince Frederick, MD 745 22 -
Cliffton on the Potomac La Plata, MD 744 22 -
McDonalds of Lisbon Baltimore, MD 735 14 -
Mardela Middle/High School Salisbury, MD 735 20 -
Hagerstown Speedway Hagerstown, MD 732 4 -
Town of Oxford Oxford, MD 726 40 -
Rising Sun Elementary Elkton, MD 726 14 -
Port Deposit Newark, MD 725 67 -
Fairlee Chestertown, MD 725 47 -
Buttonwood Beach RV Resort Earleville, MD 725 22 -
Piccowaxen Middle School La Plata, MD 722 1 -
Runway Liquors Easton, MD 720 9 -
Dunkin Gambrills Annapolis, MD 718 0 -
Hunting Quarters California, MD 715 6 -
Savory Deli and Market Forest Hill, MD 714 2 -
Harford Community College Bel Air, MD 713 55 -
Lower Shore Tourism Center Snow Hill, MD 713 18 -
Royal Farms Store #56 MD 708 8 -
Mt. Harmony Elementary School Prince Frederick, MD 706 19 -
Town of Queenstown Queenstown, MD 705 72 -
Harriet Elizabeth Brown Community Center Prince Frederick, MD 700 0 -
Winfield Elementary Westminster, MD 700 14 -
Runnymede Elementary Westminster, MD 700 8 -
Patapsco State Park ( McKeldin A) Ellicott City, MD 700 0 -
Jiffy Mart Finksburg Ellicott City, MD 700 2 -
Northrop Grumman Systems Corporation Elkton, MD 700 25 -
Rodney Scout Camp Wilmington, MD 700 25 -
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