All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Emmanuel U M Church Calvert County |
45 | 1 | 0 | |
|
Faith Community Bible Church Carroll County |
45 | 0 | 0 | |
|
Green Valley Animal Hospital Frederick County |
45 | 0 | 0 | |
|
Greene's Family Butcher Shop Baltimore County |
45 | 0 | 0 | |
|
Herrington Harbour North Anne Arundel County |
45 | 0 | 0 | |
|
Holly Cove Harbor Mobile Home Park Caroline County |
45 | 2 | 0 | |
|
Island Resort Campground Worcester County |
45 | 2 | 0 | |
|
Lifestream Church of Nazarene Charles County |
45 | 1 | 0 | |
|
Londontowne Marina Anne Arundel County |
45 | 0 | 0 | |
|
Marbury Church of God Charles County |
45 | 1 | 0 | |
|
Maryland State Police Firing Range Baltimore County |
45 | 0 | 0 | |
|
Matthews Manor Charles County |
45 | 1 | 0 | |
|
Miss Loretta's Early Learning Center Frederick County |
45 | 0 | 0 | |
|
Monsignor Odwyer Retreat House Baltimore County |
45 | 0 | 0 | |
|
Mt. Union Lutheran Church Carroll County |
45 | 0 | 0 | |
|
New Market Grange #362 Frederick County |
45 | 0 | 0 | |
|
North East Quarry Cecil County |
45 | 2 | 0 | |
|
Oakwood Charles County |
45 | 1 | 0 | |
|
Original Laurel Assembly Anne Arundel County |
45 | 1 | 0 | |
|
Placid Harbor and Iam Educ Center St. Mary's County |
45 | 0 | 0 | |
|
Poplar Island Talbot County |
45 | 0 | 0 | |
|
S.h.a. Churchville Maintenance Shop Harford County |
45 | 0 | 0 | |
|
Scheibels Construction Calvert County |
45 | 0 | 0 | |
|
Seabreeze Restaurant St. Mary's County |
45 | 0 | 0 | |
|
Sha Hereford Shop Baltimore County |
45 | 0 | 0 | |
|
Smoke House Bbq St. Mary's County |
45 | 0 | 0 | |
|
Sod Run Wastewater Treatment Plant Harford County |
45 | 1 | 0 | |
|
ST Pauls Lutheran Church Baltimore County |
45 | 0 | 0 | |
|
Trinity Freewill Baptist Church Harford County |
45 | 0 | 0 | |
|
Upperco Vfc Baltimore County |
45 | 0 | 0 | |
|
Victorious Kids / Master's Child Church Charles County |
45 | 1 | 0 | |
|
West River UM Center Anne Arundel County |
45 | 0 | 0 | |
|
Bureau of Highways Cooksville Howard County |
44 | 0 | 0 | |
|
Calvary Temple Anne Arundel County |
44 | 0 | 0 | |
|
Eastman Specialties Corporation Kent County |
44 | 2 | 0 | |
|
Fairview UM Church Baltimore County |
44 | 0 | 0 | |
|
Fast Eddies Pit Beef Harford County |
44 | 2 | 0 | |
|
Montessori Manor Baltimore County |
44 | 0 | 0 | |
|
Our Lady of Grace Church Baltimore County |
44 | 0 | 0 | |
|
Red Run Condos Garrett County |
44 | 0 | 0 | |
|
Relax Inn Charles County |
44 | 1 | 0 | |
|
Ship's Point Business Park LLC Calvert County |
44 | 2 | 0 | |
|
Silver Oak Academy Carroll County |
44 | 1 | 0 | |
|
Swann Haven Mobile Home Park Talbot County |
44 | 5 | 1 | |
|
Winfield Medical Center Carroll County |
44 | 0 | 0 | |
|
Dough Run ( Formerly Monkton Grille) Baltimore County |
43 | 0 | 0 | |
|
Fairview A.m.e. Church Harford County |
43 | 0 | 0 | |
|
Fort Frederick State Park Picnic Area Washington County |
43 | 0 | 0 | |
|
Kids Farm Childcare Davidsonville Anne Arundel County |
43 | 1 | 0 | |
|
Lisbon UM Church Howard County |
43 | 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.