All water systems in Maryland
2,202 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Summer Hill Pool Baltimore County |
68 | 0 | 0 | |
|
Yellow Barn Tavern Baltimore County |
68 | 0 | 0 | |
|
Bethel Presbyterian Church Harford County |
67 | 0 | 0 | |
|
Fiesta Cafe St. Mary's County |
67 | 0 | 0 | |
|
MT Pleasant Ruritan Club Frederick County |
67 | 0 | 0 | |
|
Old Stein Inn Anne Arundel County |
67 | 0 | 0 | |
|
Providence United Methodist Church Frederick County |
67 | 0 | 0 | |
|
Tevco Jiffy Mart Carroll County |
67 | 0 | 0 | |
|
Angelicos and Pizza Express Anne Arundel County |
66 | 0 | 0 | |
|
Beach Bum Worcester County |
66 | 0 | 0 | |
|
Hot Pot Chinese Restaurant, Inc. St. Mary's County |
66 | 0 | 0 | |
|
Jefferson Ruritan Community Center Frederick County |
66 | 0 | 0 | |
|
American Legion Post# 206 Calvert County |
65 | 0 | 0 | |
|
Camp Thendara 4-H Center Cambridge · Dorchester County |
65 | 0 | 0 | |
|
Cooks Liquor and Deli (hillville) St. Mary's County |
65 | 0 | 0 | |
|
Family Veterinary Clinic Anne Arundel County |
65 | 0 | 0 | |
|
Koski Trucking Well #3 Dorchester County |
65 | 0 | 0 | |
|
Marley Run Recreation Area Calvert County |
65 | 0 | 0 | |
|
Merry Meadows Pool, Snack Bar-Well #4 Baltimore County |
65 | 0 | 0 | |
|
Messiah Lutheran Church Carroll County |
65 | 0 | 0 | |
|
Messiah Lutheran Church and Nursery Carroll County |
65 | 0 | 0 | |
|
Middle River Landing Marina Baltimore County |
65 | 0 | 0 | |
|
National Colonial Farm (accokeek Fnd.) Prince George's County |
65 | 0 | 0 | |
|
Oak Grove Marina Well #2 Piers Anne Arundel County |
65 | 0 | 0 | |
|
Prospect Pantry Frederick County |
65 | 0 | 0 | |
|
Tall Tales Brewing Company Wicomico County |
65 | 1 | 0 | |
|
Wetlands, Locksley Manor Golf Course Harford County |
65 | 0 | 0 | |
|
Woolford Country Store Dorchester County |
65 | 0 | 0 | |
|
Greenmount Umc Carroll County |
64 | 0 | 0 | |
|
Lamonts Night Club Charles County |
64 | 1 | 0 | |
|
Piney Point Market St. Mary's County |
64 | 0 | 0 | |
|
Poplar Springs United Methodist Church Howard County |
64 | 0 | 0 | |
|
Severna Park Evangelical Presbyterian Anne Arundel County |
64 | 0 | 0 | |
|
State Line Motel Washington County |
64 | 1 | 0 | |
|
Trinity Lutheran Church Carroll County |
64 | 0 | 0 | |
|
Cactus Flats Frederick County |
63 | 0 | 0 | |
|
Maryland Health Society/ Camp Maheso Anne Arundel County |
63 | 0 | 0 | |
|
Patuxent UM Church Calvert County |
63 | 0 | 0 | |
|
Bel Alton Motel Charles County |
62 | 0 | 0 | |
|
Boordy Vineyards Baltimore County |
62 | 0 | 0 | |
|
Elks Youth Camp Barrett Anne Arundel County |
62 | 0 | 0 | |
|
Galesville United Methodist Church Anne Arundel County |
62 | 0 | 0 | |
|
Hollywood Church of the Nazarene St. Mary's County |
62 | 0 | 0 | |
|
Pour Dog House Anne Arundel County |
62 | 0 | 0 | |
|
Pulaski Flea Market, Winners Corner Cafe Baltimore County |
62 | 0 | 0 | |
|
Smithville United Methodist Church Calvert County |
62 | 0 | 0 | |
|
ST Pauls Lutheran Church(frederick Frederick County |
62 | 0 | 0 | |
|
Dental Health Group Garrett County |
61 | 0 | 0 | |
|
Holy Trinity Episcopal Church Harford County |
61 | 0 | 0 | |
|
Indian Landing Boat Club Anne Arundel County |
61 | 1 | 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.