All water systems in Maryland
2,202 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Island Creek Prop. (mom and Pops) Calvert County |
104 | 0 | 0 | |
|
Keyes Creamery Harford County |
104 | 0 | 0 | |
|
Prettyboy Market Baltimore County |
104 | 0 | 0 | |
|
Red Hot and Blue Anne Arundel County |
104 | 2 | 0 | |
|
Sparks Filling Station Baltimore County |
104 | 0 | 0 | |
|
Bucks Worcester County |
103 | 0 | 0 | |
|
Calvary Bible Church Calvert County |
103 | 0 | 0 | |
|
Centenary United Methodist Church Anne Arundel County |
103 | 0 | 0 | |
|
Cloverhill Swim Club Frederick County |
103 | 0 | 0 | |
|
Fawn Grove Church of the Nazarene Harford County |
103 | 1 | 0 | |
|
Fort Meade Shell Anne Arundel County |
103 | 0 | 0 | |
|
Gunpowder Falls ST PK Jerusalem Mill Harford County |
103 | 1 | 0 | |
|
Joy Reigns Lutheran Church Anne Arundel County |
103 | 0 | 0 | |
|
Kurtzs Beach Anne Arundel County |
103 | 0 | 0 | |
|
Lapp Bakery Kent County |
103 | 2 | 0 | |
|
Living Word Community Church St. Mary's County |
103 | 0 | 0 | |
|
Mt. Gethsemane Holiness Church Calvert County |
103 | 0 | 0 | |
|
Norrisville Library and Rec Center Harford County |
103 | 0 | 0 | |
|
Rocky Point Golf Course Baltimore County |
103 | 0 | 0 | |
|
Selby Bay Marina Anne Arundel County |
103 | 0 | 0 | |
|
ST Marys Orthodox Church Baltimore County |
103 | 0 | 0 | |
|
Unitarian Universalist Fellowship Harford County |
103 | 0 | 0 | |
|
Wacs Hughes Lodge , Elks # 1053 Charles County |
103 | 1 | 0 | |
|
All Saints Episcopal Church Calvert County |
102 | 0 | 0 | |
|
Beverly Triton Nature Park Anne Arundel County |
102 | 0 | 0 | |
|
Breezy Point Snackbar Calvert County |
102 | 0 | 0 | |
|
Fairbanks Bait & Tackle Talbot County |
102 | 0 | 0 | |
|
Flintstone Dollar General Allegany County |
102 | 0 | 0 | |
|
Gospel Tabernacle of Prayer St. Mary's County |
102 | 0 | 0 | |
|
Jarrettsville Carroll Fuel Harford County |
102 | 1 | 0 | |
|
Little Fall Ii, Horseshoe Pub Baltimore County |
102 | 0 | 0 | |
|
Oak Ridge Park Charles County |
102 | 0 | 0 | |
|
Pisgah General Store Charles County |
102 | 0 | 0 | |
|
S.h.a. Marlboro Shop Prince George's County |
102 | 0 | 0 | |
|
Saint Andrews Play School & Epis Church St. Mary's County |
102 | 0 | 0 | |
|
Saint Cecilias Church St. Mary's County |
102 | 0 | 0 | |
|
Smallwood ST PK Family Campground (w4) Charles County |
102 | 0 | 0 | |
|
Smallwood State PK Discover/ Marina (w5) Charles County |
102 | 0 | 0 | |
|
Assateague State Park Boat Landing Worcester County |
101 | 0 | 0 | |
|
Grandview Christian Church Harford County |
101 | 0 | 0 | |
|
Rocks State Park Wilsons Picnic Area Harford County |
101 | 0 | 0 | |
|
301 BP Prince George's County |
100 | 0 | 0 | |
|
4-H Park Queen Anne's County |
100 | 0 | 0 | |
|
7 Eleven # 34278 Queen Anne's County |
100 | 0 | 0 | |
|
American Legion # 170 Charles County |
100 | 1 | 0 | |
|
American Legion-Hampstead Carroll County |
100 | 0 | 0 | |
|
Arlington Echo Anne Arundel County |
100 | 0 | 0 | |
|
Aztec Oil Allegany County |
100 | 0 | 0 | |
|
B and J Market Wicomico County |
100 | 0 | 0 | |
|
Baltimore Pike Vol Fire Company Allegany County |
100 | 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.