Tapcensus

Revised Total Coliform Rule (RTCR) violations in Maryland

361 active public water systems in Maryland had a Revised Total Coliform Rule (RTCR) violation in the past three years, 3 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.

Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.

Systems with a Revised Total Coliform Rule (RTCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Somerset CO Health Dept
Somerset County
35 3 0
Harbour Cove Marina
Anne Arundel County
33 1 0
Blue Crab House
Harford County
32 1 0
Link 3951 Dartmouth CT
Frederick County
32 1 0
Link 4780 Winchester Boulevard
Frederick County
32 1 0
Cape ST Claire Swim Club
Anne Arundel County
32 1 0
Jessup Sunoco
Anne Arundel County
32 1 0
White Oak Mobile Home Park
Garrett County
32 4 1
Gospel Union Church
Charles County
31 1 0
Phoenix
Baltimore County
31 1 0
Beaver Creek Country Club
Washington County
30 1 0
Deale Tracy Park
Anne Arundel County
30 1 0
Herring Creek Professional Center
Worcester County
30 2 0
Huntingfield Manor
Kent County
30 1 0
Marlin Park Plaza
Worcester County
30 1 0
Olde Country Inn (oci)
St. Mary's County
30 1 0
Our House Job Training Center for Youth
Montgomery County
30 5 1
Queen Annes County Dpw Office
Queen Anne's County
30 1 0
Waldorf Moose Lodge # 1709
Charles County
30 2 0
Wayside Snack Bar
Cecil County
30 1 0
Wicomico Yacht Club
Wicomico County
30 1 0
Woodland Center #2
Anne Arundel County
30 2 0
Point Pleasant Beach Tavern
Anne Arundel County
29 2 0
The Pavilion at Weatherly
Charles County
29 1 0
Dollar General #21451
Cecil County
28 2 0
Fridays Creek Winery
Calvert County
28 1 0
Georgetown Yacht Haven
Kent County
28 3 0
Misty Meadows Creamery
Washington County
28 1 0
Cecil County Dragway
Cecil County
27 2 0
Fraternal Order of Police Lodge #24
Charles County
27 2 0
Taylors Mobile Home Park
Caroline County
27 6 1
Copper Creek Pub & Ale House
Anne Arundel County
26 1 0
Mil-Bur Club Community Pool
Anne Arundel County
26 1 0
Townhill Hotel B and B
Allegany County
26 1 0
American Legion #277
Anne Arundel County
25 1 0
Bar T Ranch
Montgomery County
25 2 0
Blue Dog Saloon
Charles County
25 1 0
Brantwood Liquors and Country Store
Cecil County
25 1 0
Dollar General #20720
Cecil County
25 2 0
Dunkirk Safeway Store #1129
Calvert County
25 3 1
Fair Hill Pizza (formerly Prizzios)
Cecil County
25 1 0
Galesville Community Center
Anne Arundel County
25 1 0
Hopewell United Methodist Church
Cecil County
25 1 0
Kaufmanns Office Building
Anne Arundel County
25 4 0
Liquor World and Schroeders Deli
Cecil County
25 1 0
Londontowne Community Hall
Anne Arundel County
25 1 0
Longpoint Improvement Association
Anne Arundel County
25 1 0
Oak Grove Baptist Church
Charles County
25 1 0
Oregon Grille
Baltimore County
25 4 0
Phils Place
Charles County
25 2 0
About this data

A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.

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.