All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sneades Hardware (owings) Davlyn LLC Calvert County |
40 | 0 | 0 | |
|
South Carroll Seventh Day Adventist Ch. Carroll County |
40 | 0 | 0 | |
|
ST James Uame Church Harford County |
40 | 0 | 0 | |
|
State Highway Admin. Dorchester County |
40 | 0 | 0 | |
|
The Village Inn Wicomico County |
40 | 2 | 0 | |
|
Thunderbird Apartments Charles County |
40 | 1 | 0 | |
|
Tideland Park Campground Dorchester County |
40 | 0 | 0 | |
|
Tower Court Mobile Home Park Caroline County |
40 | 1 | 0 | |
|
Trinity United Methodist/little Lambs Anne Arundel County |
40 | 0 | 0 | |
|
W Building Anne Arundel County |
40 | 0 | 0 | |
|
Wee Lad & Lassie Early Learning Anne Arundel County |
40 | 3 | 0 | |
|
Word of Life Center Wicomico County |
40 | 0 | 0 | |
|
Cherry Hill Assisted Living Garrett County |
39 | 1 | 0 | |
|
Glenelg UM Church and Nursery School Howard County |
39 | 0 | 0 | |
|
Training Station Pre School Worcester County |
39 | 0 | 0 | |
|
Tuscarora Tennis Barn Frederick County |
39 | 0 | 0 | |
|
Zee Best/ Ginney Country Kitchen St. Mary's County |
39 | 0 | 0 | |
|
Angelica Nurseries Nursery View Kent County |
38 | 1 | 0 | |
|
Baltimore County Agricultural Center Baltimore County |
38 | 2 | 0 | |
|
Burrsville Ruritan Club Caroline County |
38 | 0 | 0 | |
|
Country Village Mobile Home Park Wicomico County |
38 | 4 | 0 | |
|
Dares Beach Market Calvert County |
38 | 0 | 0 | |
|
Davidsonville Station Anne Arundel County |
38 | 0 | 0 | |
|
Dunkirk Animal Hospital Calvert County |
38 | 0 | 0 | |
|
Fishermans Haven Condo Worcester County |
38 | 0 | 0 | |
|
Forwardgro LLC Anne Arundel County |
38 | 1 | 0 | |
|
Maryland Central Korean Baptist Anne Arundel County |
38 | 0 | 0 | |
|
Maryland Yacht Club INC Anne Arundel County |
38 | 0 | 0 | |
|
Northern Police Precinct & Library Harford County |
38 | 0 | 0 | |
|
Ocean City Airport Worcester County |
38 | 0 | 0 | |
|
Pennys Tavern and Bbq Pit Charles County |
38 | 0 | 0 | |
|
Shops at South River Anne Arundel County |
38 | 1 | 0 | |
|
Taylorsville Mhc, LLC Carroll County |
38 | 0 | 0 | |
|
Tlc Preschool and Daycare Harford County |
38 | 3 | 0 | |
|
Tower Business Center Carroll County |
38 | 0 | 0 | |
|
Bel Air Moose Lodge #1952 Harford County |
37 | 0 | 0 | |
|
Dayspring Church Wellspring Well Montgomery County |
37 | 0 | 0 | |
|
Fox Valley Swimming Pool Howard County |
37 | 0 | 0 | |
|
Gray and Sons INC Baltimore County |
37 | 0 | 0 | |
|
Gunpowder Baptist Church Baltimore County |
37 | 0 | 0 | |
|
Hart Heritage Harford County |
37 | 1 | 0 | |
|
Heavy Hitters Bar and Grill St. Mary's County |
37 | 0 | 0 | |
|
Martin Marietta Churchville Quarry Harford County |
37 | 1 | 0 | |
|
Merry Meadows Over the Hill Campsites Baltimore County |
37 | 0 | 0 | |
|
Nock's Tire Service, Inc. Worcester County |
37 | 1 | 0 | |
|
Old School Tavern Harford County |
37 | 0 | 0 | |
|
Saint Georges Episcopal Church St. Mary's County |
37 | 0 | 0 | |
|
Willow Oaks, LLC Frederick County |
37 | 0 | 0 | |
|
Amelano Manor Frederick County |
36 | 4 | 1 | |
|
Auto Emissions Center , Veip Calvert County |
36 | 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.