All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sullivans Mobile Home Park Community Carroll County |
70 | 0 | 0 | |
|
Sunderland Commercial Center Calvert County |
70 | 1 | 0 | |
|
Talbot Co. Country Club Talbot County |
70 | 1 | 0 | |
|
The Boat Warehouse Cecil County |
70 | 0 | 0 | |
|
The Cannon Club Anne Arundel County |
70 | 0 | 0 | |
|
The Center for Life Enrichment St. Mary's County |
70 | 1 | 0 | |
|
White Plains 2 Mhp/jack Blair Charles County |
70 | 1 | 0 | |
|
Killarney House Anne Arundel County |
69 | 0 | 0 | |
|
LU and Joes Restaurant Howard County |
69 | 0 | 0 | |
|
Allegany Boys Home/bald Eagle Allegany County |
68 | 0 | 0 | |
|
Assateague Island Surf Shop Worcester County |
68 | 0 | 0 | |
|
Best Rental Housing, Inc. Wicomico County |
68 | 1 | 0 | |
|
Columbus Club of Hagerstown Washington County |
68 | 0 | 0 | |
|
Dew Drop Inn / Brix in the Stix Baltimore County |
68 | 0 | 0 | |
|
Hoopers Island General Store Dorchester County |
68 | 0 | 0 | |
|
Koski Trucking Well #1 Dorchester County |
68 | 0 | 0 | |
|
Los Guayabos Mexican Grill St. Mary's County |
68 | 0 | 0 | |
|
Monarch Montessori School Harford County |
68 | 0 | 0 | |
|
Shoemaker Limited Partnership Baltimore County |
68 | 0 | 0 | |
|
Stockton Head Start Worcester County |
68 | 3 | 0 | |
|
Summer Hill Pool Baltimore County |
68 | 0 | 0 | |
|
Tara Subdivision Calvert County |
68 | 0 | 0 | |
|
Town of Luke Allegany County |
68 | 2 | 0 | |
|
Wonder Years Broadwater Creek Academy Anne Arundel County |
68 | 2 | 0 | |
|
Yellow Barn Tavern Baltimore County |
68 | 0 | 0 | |
|
Bethel Presbyterian Church Harford County |
67 | 0 | 0 | |
|
Fiesta Cafe St. Mary's County |
67 | 0 | 0 | |
|
Grover Place Child Care Center Calvert County |
67 | 1 | 0 | |
|
MT Pleasant Ruritan Club Frederick County |
67 | 0 | 0 | |
|
Old Stein Inn Anne Arundel County |
67 | 0 | 0 | |
|
Providence United Methodist Church Frederick County |
67 | 0 | 0 | |
|
Tevco Jiffy Mart Carroll County |
67 | 0 | 0 | |
|
Angelicos and Pizza Express Anne Arundel County |
66 | 0 | 0 | |
|
Beach Bum Worcester County |
66 | 0 | 0 | |
|
Hot Pot Chinese Restaurant, Inc. St. Mary's County |
66 | 0 | 0 | |
|
Jefferson Ruritan Community Center Frederick County |
66 | 0 | 0 | |
|
American Legion Post# 206 Calvert County |
65 | 0 | 0 | |
|
B&l Mobile Home Park Calvert County |
65 | 2 | 0 | |
|
Banks Odee Charles County |
65 | 1 | 0 | |
|
Camp Thendara 4-H Center Cambridge · Dorchester County |
65 | 0 | 0 | |
|
Cdj Distillery LLC Carroll County |
65 | 2 | 1 | |
|
Cooks Liquor and Deli (hillville) St. Mary's County |
65 | 0 | 0 | |
|
Creative Childrens Center Frederick County |
65 | 0 | 0 | |
|
Family Veterinary Clinic Anne Arundel County |
65 | 0 | 0 | |
|
Hearts Desire St. Mary's County |
65 | 1 | 0 | |
|
Koski Trucking Well #3 Dorchester County |
65 | 0 | 0 | |
|
Marley Run Recreation Area Calvert County |
65 | 0 | 0 | |
|
Merry Meadows Pool, Snack Bar-Well #4 Baltimore County |
65 | 0 | 0 | |
|
Messiah Lutheran Church Carroll County |
65 | 0 | 0 | |
|
Messiah Lutheran Church and Nursery Carroll County |
65 | 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.