All water systems in Maryland
2,202 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Brown Cleary Building (calvert Animal) Calvert County |
150 | 0 | 0 | |
|
Camp Habonim Moshava Harford County |
150 | 0 | 0 | |
|
Camp Pecometh Dining Hall Queen Anne's County |
150 | 0 | 0 | |
|
Camp Pecometh Grove Queen Anne's County |
150 | 0 | 0 | |
|
Cascade Lake Splash Pad Carroll County |
150 | 0 | 0 | |
|
Church of Latter Day Saints Harford County |
150 | 2 | 0 | |
|
Churchville Rec Center-Level Road Harford County |
150 | 0 | 0 | |
|
Coppermine Sportsmans Hall Roller Rink Baltimore County |
150 | 0 | 0 | |
|
Cross Roads Market Wicomico County |
150 | 1 | 0 | |
|
Deer Park Sportsmen's Club Garrett County |
150 | 0 | 0 | |
|
Delauter and Sons Frederick County |
150 | 0 | 0 | |
|
Dixon Auction House Main Well Queen Anne's County |
150 | 0 | 0 | |
|
Dollar General #18012 -Westover Somerset County |
150 | 0 | 0 | |
|
Dollar General #21871-Marian Somerset County |
150 | 0 | 0 | |
|
Dollar General #23015 Somerset County |
150 | 0 | 0 | |
|
Dollar General (no 18319) Cecil County |
150 | 0 | 0 | |
|
Dollar General Friendsville Garrett County |
150 | 0 | 0 | |
|
Duck Neck Campground D Section Queen Anne's County |
150 | 0 | 0 | |
|
Duck Neck Campground Little Bath House Queen Anne's County |
150 | 0 | 0 | |
|
Duck Neck Campground Store and Pool Queen Anne's County |
150 | 0 | 0 | |
|
Duck Neck Campground Big Bath House Queen Anne's County |
150 | 0 | 0 | |
|
Duck Neck Campground K Section Queen Anne's County |
150 | 0 | 0 | |
|
Duck Neck Campground M Section Queen Anne's County |
150 | 0 | 0 | |
|
Duffy Creek Marina Cecil County |
150 | 0 | 0 | |
|
Fallston Swim Club Harford County |
150 | 2 | 0 | |
|
Gateway Market and Candyland Frederick County |
150 | 0 | 0 | |
|
Goose Bay Marina Camp Ground Charles County |
150 | 2 | 0 | |
|
Hampstead Crown (citgo) Carroll County |
150 | 0 | 0 | |
|
Hampstead Lions Baseball Fields Carroll County |
150 | 0 | 0 | |
|
Herrington Harbor Marina South Well#2 Anne Arundel County |
150 | 0 | 0 | |
|
Immanuel UM Church Queen Anne's County |
150 | 0 | 0 | |
|
John's Corner Garrett County |
150 | 0 | 0 | |
|
Libertytown Shopping Center Frederick County |
150 | 0 | 0 | |
|
Minary's Dream Alliance, INC Kent County |
150 | 1 | 0 | |
|
MT Hope Community Center Calvert County |
150 | 0 | 0 | |
|
P. B. Dye Golf Club Frederick County |
150 | 0 | 0 | |
|
Pleasant Hill Store Cecil County |
150 | 0 | 0 | |
|
River Inn @ Rolphs Wharf/sand Bar Queen Anne's County |
150 | 0 | 0 | |
|
River Valley Ranch Junior Ranch Carroll County |
150 | 0 | 0 | |
|
ST Catherines Church Hall Charles County |
150 | 0 | 0 | |
|
Two Rivers Yacht Basin Cecil County |
150 | 0 | 0 | |
|
Utica District Park 2 Frederick County |
150 | 0 | 0 | |
|
VFW Post 7464 Grasonville Queen Anne's County |
150 | 0 | 0 | |
|
Vintage Frederick County |
150 | 0 | 0 | |
|
Wesley Temple Church Wicomico County |
150 | 0 | 0 | |
|
Western Regional Park Howard County |
150 | 0 | 0 | |
|
Western Regional Park Pavilion Well Howard County |
150 | 0 | 0 | |
|
Holy Family Catholic Community Frederick County |
147 | 0 | 0 | |
|
Roma Carry Out Jimmy's Grillie Baltimore County |
146 | 1 | 0 | |
|
Duffers Club/piney Branch Golf Club Baltimore County |
145 | 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.