All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Baymart Deli St. Mary's County |
36 | 0 | 0 | |
|
Charles J. Miller, LLC Carroll County |
36 | 1 | 0 | |
|
Fastop #56 Calvert County |
36 | 0 | 0 | |
|
Fork United Methodist Church Baltimore County |
36 | 0 | 0 | |
|
Glen Cove Marina Harford County |
36 | 0 | 0 | |
|
Harbor Hills Yacht Club Anne Arundel County |
36 | 2 | 0 | |
|
Lighthouse Christian--Upper Campus Wicomico County |
36 | 0 | 0 | |
|
Lower Shore YMCA Cabins Worcester County |
36 | 0 | 0 | |
|
Oblates of St. Francis Cecil County |
36 | 1 | 0 | |
|
Oldfields School Baltimore County |
36 | 1 | 0 | |
|
Oral & Facial Surgery Washington County |
36 | 0 | 0 | |
|
Savage River Lodge Cabins Garrett County |
36 | 0 | 0 | |
|
Spinnakers and PT Lookout Marina St. Mary's County |
36 | 0 | 0 | |
|
Student Support Services Center Anne Arundel County |
36 | 0 | 0 | |
|
The Athlete Factory /extra Innings Frederick County |
36 | 0 | 0 | |
|
Third Base Grocery St. Mary's County |
36 | 0 | 0 | |
|
U.m. Central MD Research & Education Ctr Howard County |
36 | 1 | 0 | |
|
Ventnor Marine Services INC Anne Arundel County |
36 | 0 | 0 | |
|
A and B Lottery and Liquor St. Mary's County |
35 | 0 | 0 | |
|
Allegany Camps-Lll Aaron Straus Allegany County |
35 | 0 | 0 | |
|
Bean Rush Cafe Anne Arundel County |
35 | 0 | 0 | |
|
Bowie Church Jesus Christ Latter Day Sts Prince George's County |
35 | 2 | 0 | |
|
Brampton Bed and Breakfast Kent County |
35 | 0 | 0 | |
|
Bridges Montessori School Harford County |
35 | 1 | 0 | |
|
Buddy's on the Bay at Lowes Wharf Talbot County |
35 | 0 | 0 | |
|
Burners Bar & Grill Charles County |
35 | 2 | 0 | |
|
Cedar Meadows Rod and Gun Club Dorchester County |
35 | 0 | 0 | |
|
Chesapeake Seafood INC Anne Arundel County |
35 | 2 | 0 | |
|
Comfort Inn Grantsville Garrett County |
35 | 0 | 0 | |
|
Dorchester Co. Highway Department Dorchester County |
35 | 0 | 0 | |
|
Dover Bridge II Mobile Home Park Caroline County |
35 | 0 | 0 | |
|
Downs Memorial Park Well # 1 Visitor Ctr Anne Arundel County |
35 | 0 | 0 | |
|
Downs Memorial Park Well 3 Anne Arundel County |
35 | 1 | 0 | |
|
Dublin Elementary Rec Center Harford County |
35 | 0 | 0 | |
|
Fairview Marina Anne Arundel County |
35 | 0 | 0 | |
|
Faith United Church of Christ Frederick County |
35 | 0 | 0 | |
|
Friendsville I-68 Rest Area Info Bldg Garrett County |
35 | 0 | 0 | |
|
Galesville Memorial Hall Anne Arundel County |
35 | 0 | 0 | |
|
Harman Subdivision Caroline County |
35 | 3 | 0 | |
|
Hertrich of Pocomoke South Inc. Worcester County |
35 | 1 | 0 | |
|
Holiday Point Marina Anne Arundel County |
35 | 0 | 0 | |
|
Horse and Hive Baltimore County |
35 | 0 | 0 | |
|
Ingleside Community Center Queen Anne's County |
35 | 0 | 0 | |
|
Ise America Inc.-Warwick Egg Processing Cecil County |
35 | 0 | 0 | |
|
Jefferson Patterson Park and Museum Calvert County |
35 | 1 | 0 | |
|
Johnsville UM Church Frederick County |
35 | 0 | 0 | |
|
Keymar Evang. Wesleyan Church-Youth Ctr. Carroll County |
35 | 0 | 0 | |
|
Kiddie Kampus Wicomico County |
35 | 2 | 0 | |
|
Kingsville Volunteer Fire Dept. Baltimore County |
35 | 0 | 0 | |
|
Lighthouse Liquors St. Mary's County |
35 | 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.