All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hickory Recreation Center Harford County |
300 | 0 | 0 | |
|
Highs #23 Manchester Carroll County |
300 | 0 | 0 | |
|
Howard County Fair (office) Howard County |
300 | 0 | 0 | |
|
Kennedyville Kent County |
300 | 1 | 0 | |
|
Lexington Estates St. Mary's County |
300 | 0 | 0 | |
|
Lodgecliffe Distribution System Dorchester County |
300 | 1 | 0 | |
|
Midlothian Water Company Allegany County |
300 | 1 | 0 | |
|
Nutters Crossing Clubhouse,link Food Srv Wicomico County |
300 | 0 | 0 | |
|
Paper Mill Village Shopping Center Baltimore County |
300 | 2 | 0 | |
|
Pheasant Ridge Estates Carroll County |
300 | 1 | 0 | |
|
Piney Run Park Boat Dock-Lower Comfort Carroll County |
300 | 0 | 0 | |
|
Piney Run Park Nature Center Carroll County |
300 | 0 | 0 | |
|
Piney Run Park Tennis Court-Upper Comfor Carroll County |
300 | 0 | 0 | |
|
Queen Annes County Parks & Recreation Queen Anne's County |
300 | 1 | 0 | |
|
Ridge Elementary School St. Mary's County |
300 | 0 | 0 | |
|
Robert Stethem Memorial Park Charles County |
300 | 0 | 0 | |
|
Seven-Eleven Finksburg Carroll County |
300 | 0 | 0 | |
|
Town of Accident Garrett County |
300 | 2 | 0 | |
|
Washington Monument State Park-Picnic Washington County |
300 | 0 | 0 | |
|
Wawa #8518 Queen Anne's County |
300 | 0 | 0 | |
|
Westside Mobile Home Park Wicomico County |
300 | 0 | 0 | |
|
Wicomico Day School Wicomico County |
300 | 2 | 0 | |
|
Winfield Inn Carroll County |
300 | 0 | 0 | |
|
Edesville Kent County |
296 | 1 | 0 | |
|
Country Meadows of Frederick Frederick County |
295 | 1 | 0 | |
|
Camp Airy, Lil Strauss Found Frederick County |
294 | 0 | 0 | |
|
Dollar General Cobb Island Charles County |
294 | 1 | 0 | |
|
Sherwood Forest/forest View Village MHP Cecil County |
293 | 2 | 0 | |
|
Harford Academy Harford County |
292 | 1 | 0 | |
|
Autumn Lake Healthcare Cecil County |
290 | 1 | 0 | |
|
Marley Run Calvert County |
290 | 0 | 0 | |
|
Worton Creek Marina INC Kent County |
290 | 0 | 0 | |
|
Taylors Island Campground Dorchester County |
289 | 0 | 0 | |
|
Cecil Woods Mobile Home Park Wtp Cecil County |
285 | 0 | 0 | |
|
Church of Latter Day Saints Charles County |
285 | 1 | 0 | |
|
Camp Merryelande St. Mary's County |
281 | 0 | 0 | |
|
Chapel Point Wds/ Jude House/ Comm Ctr Charles County |
280 | 1 | 0 | |
|
Church Hill Elementary School Queen Anne's County |
280 | 1 | 0 | |
|
Churchville Rec Center Main Bldg Harford County |
280 | 1 | 0 | |
|
Gregg Neck Boat Yard Kent County |
280 | 0 | 0 | |
|
Pilot Travel Center & Arbys Restaurant Garrett County |
280 | 1 | 0 | |
|
Holly Grove Christian School Somerset County |
278 | 1 | 0 | |
|
Bay Country Estates Mobile Home Park Cecil County |
276 | 3 | 0 | |
|
Beaver Run Mobile Home Park Dorchester County |
275 | 2 | 0 | |
|
Dunkin Donuts Jarrettsville Harford County |
275 | 0 | 0 | |
|
Gibson Island Anne Arundel County |
275 | 0 | 0 | |
|
Glen Arm Maintenance Fclty/ulla Popken Baltimore County |
275 | 0 | 0 | |
|
Penn Mar Plaza and Buon Gusto Harford County |
275 | 0 | 0 | |
|
Birch Manor St. Mary's County |
272 | 1 | 0 | |
|
Town of Deer Park Garrett County |
272 | 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.