All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Musket Ridge Golf Club-Bathrooms Frederick County |
85 | 0 | 0 | |
|
Oak Grove Marina Well #1 Anne Arundel County |
85 | 1 | 0 | |
|
Pasadena Golf Center Anne Arundel County |
85 | 2 | 0 | |
|
Regency Park Assisted Living Residence Anne Arundel County |
85 | 2 | 0 | |
|
St. Georges Episcopal Church School Carroll County |
85 | 0 | 0 | |
|
Stonebridge Grille Baltimore County |
85 | 0 | 0 | |
|
Sunset Bus. Park/ Meyers Siding Condo Worcester County |
85 | 1 | 1 | |
|
The Bus Stop Baltimore County |
85 | 0 | 0 | |
|
Winters Run Golf Course Harford County |
85 | 0 | 0 | |
|
258 Najoles Road Anne Arundel County |
84 | 1 | 0 | |
|
Eastern Shore Early Learning Center Worcester County |
84 | 2 | 0 | |
|
Furnacetown and Vistor Worcester County |
84 | 0 | 0 | |
|
Huntingtown North and Floor Systems Calvert County |
84 | 0 | 0 | |
|
MD State Hwy Admin Main Office Worcester County |
84 | 0 | 0 | |
|
Subway Shop (grantsville) Garrett County |
84 | 0 | 0 | |
|
Vision Quest Morning Star Youth Academy Dorchester County |
84 | 1 | 0 | |
|
Dunkirk Fastop Calvert County |
83 | 0 | 0 | |
|
Hereford Volunteer Fire CO Baltimore County |
83 | 0 | 0 | |
|
Jerry S Place Calvert County |
83 | 0 | 0 | |
|
Kimber Meadows Washington County |
83 | 1 | 0 | |
|
Morgan Station Inn Howard County |
83 | 0 | 0 | |
|
Chestnut Point Estates Wtp Cecil County |
82 | 1 | 0 | |
|
Christ Episcopal Church St. Mary's County |
82 | 0 | 0 | |
|
Faith Assembly of God Anne Arundel County |
82 | 0 | 0 | |
|
Harford Jewish Center Harford County |
82 | 1 | 0 | |
|
Saysf Bible Church St. Mary's County |
82 | 0 | 0 | |
|
White Sands Calvert County |
82 | 0 | 0 | |
|
Wrights Market Wicomico County |
82 | 1 | 1 | |
|
Beckwith Church Dorchester County |
81 | 0 | 0 | |
|
Catoctin Mountain Nat. Park Jim Brown Frederick County |
81 | 0 | 0 | |
|
Dawn's Early Light Early Childhood Ctr Calvert County |
81 | 3 | 0 | |
|
Grove Market Worcester County |
81 | 0 | 0 | |
|
Long Green Baptist Church Baltimore County |
81 | 0 | 0 | |
|
Ridge Country Store Baltimore County |
81 | 0 | 0 | |
|
Shepherd of the Bay Lutheran Church Calvert County |
81 | 0 | 0 | |
|
A.i.m. Corporation Baltimore County |
80 | 1 | 0 | |
|
Andy Wargos Restaurant Harford County |
80 | 0 | 0 | |
|
Blackstone Marina St. Mary's County |
80 | 1 | 0 | |
|
Calvert Mobile Home Park Calvert County |
80 | 0 | 0 | |
|
Camp Bennett Lodge [union Mission] Montgomery County |
80 | 0 | 0 | |
|
Camp Bennett Office/[union Mission] Montgomery County |
80 | 0 | 0 | |
|
Cedar Grove Beer and Wine Montgomery County |
80 | 1 | 0 | |
|
Church of God of Prophecy Wicomico County |
80 | 0 | 0 | |
|
Crofton Medical Arts Building Anne Arundel County |
80 | 0 | 0 | |
|
Dill Dinkers Carroll County |
80 | 0 | 0 | |
|
Donaldson Funeral Home Anne Arundel County |
80 | 0 | 0 | |
|
Etchison Country Store Montgomery County |
80 | 0 | 0 | |
|
Galilee Lutheran Church and Day Care Anne Arundel County |
80 | 0 | 0 | |
|
Gambrills Business Park Anne Arundel County |
80 | 1 | 0 | |
|
Heritage Mobile Home Park Dorchester County |
80 | 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.