All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dennis Point Marina & Campground St. Mary's County |
111 | 0 | 0 | |
|
Frederick County 4-H Camp Center Frederick County |
111 | 0 | 0 | |
|
Sandymount United Methodist Church Carroll County |
111 | 1 | 0 | |
|
ST Nicholas Lutheran Church Calvert County |
111 | 0 | 0 | |
|
Village Store Carroll County |
111 | 0 | 0 | |
|
Arcadia Volunteer Fire CO Baltimore County |
110 | 0 | 0 | |
|
Belmont Conf Center Manor House Howard County |
110 | 0 | 0 | |
|
Big Truck Farm Brewery Baltimore County |
110 | 0 | 0 | |
|
Churchville Presby.church & Day Care Harford County |
110 | 2 | 0 | |
|
Coppermine Green Valley Swim Club Baltimore County |
110 | 0 | 0 | |
|
Corner Grill Anne Arundel County |
110 | 0 | 0 | |
|
Crownsville Automotive Anne Arundel County |
110 | 0 | 0 | |
|
Docs Crabhouse, Big B Liquors, Dominos Charles County |
110 | 0 | 0 | |
|
Donnelly's Dockside Anne Arundel County |
110 | 0 | 0 | |
|
Duffys III and Bradshaw Bros Crab House Anne Arundel County |
110 | 1 | 0 | |
|
Dunkirk Professional Building Calvert County |
110 | 1 | 0 | |
|
Genes Bar and Restaurant Harford County |
110 | 0 | 0 | |
|
John Brown General and Butchery Baltimore County |
110 | 0 | 0 | |
|
Level Vol Fire CO Harford County |
110 | 0 | 0 | |
|
Lower Shore YMCA Worcester County |
110 | 0 | 0 | |
|
Mattawoman W.w.t.p. Charles County |
110 | 1 | 0 | |
|
McFaul's Ironhorse Tavern Baltimore County |
110 | 0 | 0 | |
|
Newtown Estates Tip Hill Water Co. Charles County |
110 | 1 | 0 | |
|
Pearlstone Center Pav, #2 Baltimore County |
110 | 0 | 0 | |
|
Pioneer Pub and Restaurant Baltimore County |
110 | 0 | 0 | |
|
Pisgah United Methodist Church Charles County |
110 | 2 | 0 | |
|
Renditions Golf Course Anne Arundel County |
110 | 0 | 0 | |
|
Roseda Farms Baltimore County |
110 | 0 | 0 | |
|
Sunnybrook Center Baltimore County |
110 | 0 | 0 | |
|
Tuckahoe State Park (tower) Caroline County |
110 | 0 | 0 | |
|
UM Laurel Fmf Distribution System Prince George's County |
110 | 0 | 0 | |
|
Maisel Brothers, Inc. Anne Arundel County |
109 | 0 | 0 | |
|
Sandgates Inn St. Mary's County |
109 | 0 | 0 | |
|
Ball Park Restaurant Harford County |
108 | 0 | 0 | |
|
Camp Wabanna Pavilion Well Anne Arundel County |
108 | 0 | 0 | |
|
Cromwell Valley Sherwood House Baltimore County |
108 | 0 | 0 | |
|
Flag Pond Nature Center Calvert County |
108 | 0 | 0 | |
|
Loch Raven Skeet and Trap Club Baltimore County |
108 | 0 | 0 | |
|
Oasis Bar and Grill Worcester County |
108 | 0 | 0 | |
|
Owings Business Center Calvert County |
108 | 0 | 0 | |
|
Petie Greens Bar and Grill Anne Arundel County |
108 | 0 | 0 | |
|
The Council of Renard Court Condominium Anne Arundel County |
108 | 3 | 0 | |
|
Toast Cafe Worcester County |
108 | 0 | 0 | |
|
Woc Bottle Shop Worcester County |
108 | 0 | 0 | |
|
Black Market Bakers Churchton Anne Arundel County |
107 | 2 | 0 | |
|
Fork Plaza , Highs and Johnny Ryans Baltimore County |
107 | 0 | 0 | |
|
Happy Harbor Restaurant Anne Arundel County |
107 | 0 | 0 | |
|
Highs Dairy Store #71 Anne Arundel County |
107 | 0 | 0 | |
|
Korner Karryout St. Mary's County |
107 | 0 | 0 | |
|
Ocean City Chamber of Commerce Worcester County |
107 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Maryland records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.