All water systems in Maryland
3,216 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Fahrney-Keedy Senior Living Community Washington County |
250 | 3 | 0 | |
|
Foxy Fish St. Mary's County |
250 | 0 | 0 | |
|
Harris Crab House Queen Anne's County |
250 | 0 | 0 | |
|
Hebron Woods Mobile Home Park Wicomico County |
250 | 1 | 0 | |
|
Kentmorr Restaurant Queen Anne's County |
250 | 0 | 0 | |
|
Lighthouse Seafood Frederick County |
250 | 0 | 0 | |
|
Melwood Recreation Center/ Camp Charles County |
250 | 1 | 0 | |
|
Mother Catherine Academy St. Mary's County |
250 | 0 | 0 | |
|
Odyssey School Baltimore County |
250 | 0 | 0 | |
|
Piney Narrows Marina Queen Anne's County |
250 | 0 | 0 | |
|
Riverside Community Church Harford County |
250 | 1 | 0 | |
|
Skycroft Baptist Conerence Center Frederick County |
250 | 0 | 0 | |
|
Springfield Manor Frederick County |
250 | 0 | 0 | |
|
Sysco Eastern Maryland Somerset County |
250 | 2 | 0 | |
|
Town of Darlington Harford County |
250 | 0 | 0 | |
|
Unitarian Universalist Congregation Frederick County |
250 | 0 | 0 | |
|
West Nottingham Academy Cecil County |
250 | 3 | 1 | |
|
Most Blessed Sacrament School Worcester County |
244 | 1 | 0 | |
|
Huntingtown UM Church Calvert County |
243 | 0 | 0 | |
|
Gathland State Park Frederick County |
242 | 0 | 0 | |
|
Aqualand Campground Charles County |
240 | 2 | 1 | |
|
Flintstone Elementary School Allegany County |
240 | 1 | 0 | |
|
Heritage Academy Washington County |
240 | 0 | 0 | |
|
Salisbury Church of Lds Wicomico County |
240 | 2 | 0 | |
|
The Jemicy School (lower School) Baltimore County |
240 | 3 | 0 | |
|
Watermans Seafood Worcester County |
240 | 0 | 0 | |
|
Piney Point Landings St. Mary's County |
239 | 1 | 0 | |
|
Villages at Leonardtown St. Mary's County |
239 | 1 | 0 | |
|
Rosemont Distribution System Frederick County |
237 | 0 | 0 | |
|
Breezy Point Beach Andcamp Calvert County |
236 | 0 | 0 | |
|
Blackwall Barn and Lodge Anne Arundel County |
235 | 0 | 0 | |
|
Ocean Downs, LLC Worcester County |
235 | 2 | 0 | |
|
Presbyterian Church of Chestertown Kent County |
235 | 0 | 0 | |
|
Rose Haven Anne Arundel County |
235 | 0 | 0 | |
|
Fenwick Manor St. Mary's County |
234 | 1 | 0 | |
|
Frederick Christian Fellowship Frederick County |
232 | 0 | 0 | |
|
Norrisville Elementary School Harford County |
231 | 1 | 0 | |
|
Crellin Garrett County |
230 | 0 | 0 | |
|
Four Corners Commercial Ctr Worcester County |
230 | 0 | 0 | |
|
Sabillasville Environmental School Frederick County |
230 | 1 | 0 | |
|
Truth Bible Church Calvert County |
230 | 1 | 0 | |
|
Ellenwood Charles County |
229 | 1 | 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 | |
|
MD American Water Lakeside Vista Harford County |
226 | 0 | 0 | |
|
Delmarva Aces Baseball Worcester County |
225 | 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.