All water systems in Maryland
2,202 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Worthington Manor Golf Club Frederick County |
96 | 0 | 0 | |
|
Bay Community Health West River Anne Arundel County |
95 | 0 | 0 | |
|
Hacks Point Marina Cecil County |
95 | 0 | 0 | |
|
MT Carmel Animal Hospital Baltimore County |
95 | 0 | 0 | |
|
Jlh Building(comcast) Calvert County |
94 | 0 | 0 | |
|
Glenvilah Center II [12948 A-F] Montgomery County |
93 | 0 | 0 | |
|
Holtzoples/more Than Gas Emmitsburg · Frederick County |
93 | 0 | 0 | |
|
Weems Creek Nursery School Anne Arundel County |
93 | 1 | 0 | |
|
First Christian Comm. Church Annapolis Anne Arundel County |
92 | 0 | 0 | |
|
Warwick Hospitality, INC Cecil County |
92 | 2 | 0 | |
|
Big Boys Tacos St. Mary's County |
91 | 0 | 0 | |
|
EL Canelos Garrett County |
91 | 0 | 0 | |
|
New Germany State Park (camping Area) Garrett County |
91 | 0 | 0 | |
|
Shrewsbury Church Kent County |
91 | 1 | 0 | |
|
Capitol KOA Campground Anne Arundel County |
90 | 0 | 0 | |
|
Hagerstown Honda Auto Place Washington County |
90 | 0 | 0 | |
|
Hagerstown Kia Washington County |
90 | 0 | 0 | |
|
Hashawa Environmental Center Carroll County |
90 | 0 | 0 | |
|
Peerce's Plantation Baltimore County |
90 | 0 | 0 | |
|
ST James Episcopal Church Baltimore County |
90 | 0 | 0 | |
|
St. Ignatius Loyola Parish (hilltop) Charles County |
90 | 0 | 0 | |
|
Calvert Medical Center Calvert County |
89 | 0 | 0 | |
|
Harvest Fellowship Church Calvert County |
89 | 0 | 0 | |
|
New Dimensions Church Wicomico County |
89 | 1 | 0 | |
|
Wawa # 585 Cecil County |
89 | 0 | 0 | |
|
Pier 450 St. Mary's County |
88 | 0 | 0 | |
|
The Rolling Pin Bakery Garrett County |
88 | 0 | 0 | |
|
Edgewater Professional Building Anne Arundel County |
87 | 0 | 0 | |
|
Highland Presbyterian Church Harford County |
87 | 0 | 0 | |
|
Hopkins Farm Brewery Harford County |
87 | 0 | 0 | |
|
Pep-Up #4 Dorchester County |
87 | 0 | 0 | |
|
Bulls Restaurant Garrett County |
86 | 0 | 0 | |
|
Eats & Sweets Harford County |
86 | 0 | 0 | |
|
First Baptist Church of Deale Anne Arundel County |
86 | 0 | 0 | |
|
Susquehanna State Park (museum) Harford County |
86 | 0 | 0 | |
|
Brookside Market Baltimore County |
85 | 0 | 0 | |
|
Chews Memorial United Church Anne Arundel County |
85 | 0 | 0 | |
|
Floyd's Crossroads Pub -Emmert's Seafood Howard County |
85 | 0 | 0 | |
|
Hoffmans Quality Meats Washington County |
85 | 0 | 0 | |
|
Laplata Baptist Church Charles County |
85 | 0 | 0 | |
|
Moyaone Association Pool Prince George's County |
85 | 0 | 0 | |
|
Musket Ridge Golf Club-Bathrooms Frederick County |
85 | 0 | 0 | |
|
Oak Grove Marina Well #1 Anne Arundel County |
85 | 1 | 0 | |
|
Pasadena Golf Center Anne Arundel County |
85 | 2 | 0 | |
|
St. Georges Episcopal Church School Carroll County |
85 | 0 | 0 | |
|
Stonebridge Grille Baltimore County |
85 | 0 | 0 | |
|
The Bus Stop Baltimore County |
85 | 0 | 0 | |
|
Winters Run Golf Course Harford County |
85 | 0 | 0 | |
|
Furnacetown and Vistor Worcester County |
84 | 0 | 0 | |
|
Huntingtown North and Floor Systems Calvert County |
84 | 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.