All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Salem Lutheran Children's Center Harford County |
210 | 2 | 0 | |
|
St. Stephens Episcopal Church Baltimore County |
210 | 0 | 0 | |
|
The Lodge Washington County |
210 | 0 | 0 | |
|
Woodland Center #1 Anne Arundel County |
210 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses Frederick County |
209 | 0 | 0 | |
|
Budds Creek Motocross St. Mary's County |
208 | 0 | 0 | |
|
Highs # 2 Harford County |
208 | 0 | 0 | |
|
Seafood Corner Mkt and Big Dogs Paradise St. Mary's County |
208 | 0 | 0 | |
|
Shady Side Market Anne Arundel County |
208 | 0 | 0 | |
|
Tacos Tolteca Harford County |
208 | 0 | 0 | |
|
Api Anne Arundel County |
207 | 0 | 0 | |
|
South Dorchester School Dorchester County |
207 | 2 | 1 | |
|
Fastop Leonardtown St. Mary's County |
206 | 0 | 0 | |
|
Black Ankle Vineyards Frederick County |
205 | 0 | 0 | |
|
Buckeystown Market Frederick County |
205 | 0 | 0 | |
|
Chestnut Ridge Farm Market Baltimore County |
205 | 0 | 0 | |
|
Hopkins Game Farm Kent County |
205 | 1 | 0 | |
|
Jacksonville Community Center Baltimore County |
205 | 0 | 0 | |
|
Ocean City Grand Prix Worcester County |
205 | 0 | 0 | |
|
River of Life Worship Ctr. Anne Arundel County |
205 | 0 | 0 | |
|
Salem United Methodist Church Baltimore County |
205 | 0 | 0 | |
|
ST James Parish Anne Arundel County |
205 | 1 | 0 | |
|
St. Marks Episcopal Church Howard County |
205 | 0 | 0 | |
|
Cape ST Claire Shell Anne Arundel County |
204 | 1 | 0 | |
|
Cascade Lake the Tropics at Carroll County |
204 | 0 | 0 | |
|
Highs #68 Harford County |
204 | 0 | 0 | |
|
Lewistown Volunteer Fire Department Frederick County |
204 | 0 | 0 | |
|
Grace Evangelical Presbyterian Church Anne Arundel County |
203 | 0 | 0 | |
|
Highs # 130 Harford County |
203 | 0 | 0 | |
|
Lakewood Calvert County |
203 | 0 | 0 | |
|
Madonna Dollar General Harford County |
203 | 1 | 0 | |
|
Route 260 Amoco BP Calvert County |
203 | 0 | 0 | |
|
Temple Isaiah Synagogue and Preschool Howard County |
203 | 1 | 0 | |
|
Carroll Motor Fuels Lothian Anne Arundel County |
202 | 0 | 0 | |
|
Good Samaritan Presbyterian Charles County |
202 | 1 | 0 | |
|
Grace Brethren Church East Wing Calvert County |
202 | 0 | 0 | |
|
Great Oak Manor Kent County |
202 | 1 | 0 | |
|
Greater Mt. Nebo A.m.e. Church Prince George's County |
202 | 1 | 0 | |
|
Lake Shore Exxon Anne Arundel County |
202 | 1 | 0 | |
|
Mountaindale Convenience Store Frederick County |
202 | 0 | 0 | |
|
Rausch Funeral Home Port Republic Calvert County |
202 | 0 | 0 | |
|
VFW Post #652 Kent County |
202 | 1 | 0 | |
|
Camp Potomac Boy Scouts Dining Hall Allegany County |
201 | 0 | 0 | |
|
Christ Lutheran Church Anne Arundel County |
201 | 0 | 0 | |
|
Pine Tree Associates Anne Arundel County |
201 | 0 | 0 | |
|
Still and Grill Carroll County |
201 | 0 | 0 | |
|
The Church of Christ (4th Watch) Harford County |
201 | 2 | 0 | |
|
YMCA Camp Letts Anne Arundel County |
201 | 0 | 0 | |
|
Anchor Inn Anne Arundel County |
200 | 0 | 0 | |
|
Baden Vol Fire Dept Prince George's County |
200 | 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.