All water systems in Maryland
2,202 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Springfield Manor Frederick County |
250 | 0 | 0 | |
|
Unitarian Universalist Congregation Frederick County |
250 | 0 | 0 | |
|
Huntingtown UM Church Calvert County |
243 | 0 | 0 | |
|
Gathland State Park Frederick County |
242 | 0 | 0 | |
|
Salisbury Church of Lds Wicomico County |
240 | 2 | 0 | |
|
Watermans Seafood Worcester County |
240 | 0 | 0 | |
|
Breezy Point Beach Andcamp Calvert County |
236 | 0 | 0 | |
|
Blackwall Barn and Lodge Anne Arundel County |
235 | 0 | 0 | |
|
Presbyterian Church of Chestertown Kent County |
235 | 0 | 0 | |
|
Frederick Christian Fellowship Frederick County |
232 | 0 | 0 | |
|
Four Corners Commercial Ctr Worcester County |
230 | 0 | 0 | |
|
Shoppes at Bay Hundred Talbot County |
229 | 0 | 0 | |
|
Comfort Inn Suites Worcester County |
228 | 0 | 0 | |
|
Fort Whaley Office and Pool Worcester County |
228 | 0 | 0 | |
|
Royal Farms #190 Anne Arundel County |
228 | 0 | 0 | |
|
Golden Sands Condos -Consec to MD0230003 Worcester County |
227 | 0 | 0 | |
|
Circle D Farms ( Dowd House) Howard County |
226 | 0 | 0 | |
|
Delmarva Aces Baseball Worcester County |
225 | 0 | 0 | |
|
Kemptown Community Park Frederick County |
225 | 0 | 0 | |
|
Kitty Knight House Kent County |
225 | 1 | 0 | |
|
Miles River Yacht Club Talbot County |
224 | 0 | 0 | |
|
Deep Creek Lake State Park (shop Well) Garrett County |
222 | 0 | 0 | |
|
Asbury Broadneck Umc Anne Arundel County |
220 | 0 | 0 | |
|
Assateague Market Worcester County |
220 | 0 | 0 | |
|
Baja Amusement INC Worcester County |
220 | 0 | 0 | |
|
Bfs Foods Grantsville Sunoco Garrett County |
220 | 0 | 0 | |
|
Fallston Volunteer Fire Co. Harford County |
220 | 0 | 0 | |
|
Lord Calvert Bowl Calvert County |
220 | 0 | 0 | |
|
Stan and Joe's Riverside Anne Arundel County |
220 | 0 | 0 | |
|
Sun Outdoors Ocean City Gateway Worcester County |
220 | 0 | 0 | |
|
Taco Bell #4748 Anne Arundel County |
220 | 0 | 0 | |
|
West Howard Swim Club Howard County |
220 | 0 | 0 | |
|
Hotel Charles Charles County |
218 | 2 | 0 | |
|
Lake Shore Vol. Fire Co. Anne Arundel County |
216 | 0 | 0 | |
|
Baltimore County Greystone Golf Course Baltimore County |
215 | 0 | 0 | |
|
Frontiertown Waterslide, Lazy R Saloon Worcester County |
215 | 0 | 0 | |
|
Lighthouse Sound Maintenance Worcester County |
215 | 0 | 0 | |
|
Ridge Volunteer Fire Hall St. Mary's County |
215 | 0 | 0 | |
|
Sunshine Grille Baltimore County |
215 | 0 | 0 | |
|
The Wharf at Handy Point North Kent County |
215 | 1 | 0 | |
|
Therapeutic and Recreational Riding Ctr Howard County |
215 | 0 | 0 | |
|
Ventrie Center, Parkview and Subway Frederick County |
215 | 0 | 0 | |
|
Herrington Manor State Park Garrett County |
214 | 0 | 0 | |
|
Jarrettsville Pharmacy Harford County |
214 | 1 | 0 | |
|
Maryland National Golf Club Frederick County |
213 | 0 | 0 | |
|
Birdies St. Mary's County |
212 | 0 | 0 | |
|
Rum Pointe Golf Clubhouse Worcester County |
212 | 0 | 0 | |
|
Smith's Hardware Harford County |
212 | 0 | 0 | |
|
The Pier Anne Arundel County |
212 | 0 | 0 | |
|
Davids Natural Market Anne Arundel County |
211 | 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.