Sewage Cleanup in Baltimore, MD

Baltimore City's sewage backup problem is deeply rooted in the age and configuration of the city's sewer infrastructure — a combined system in the older parts of the city that was never separated and that regularly reaches hydraulic capacity during storm events of relatively modest intensity. Baltimore City's Department of Public Works has acknowledged that the combined sewer system in the northern and eastern parts of the city experiences overflow during events as small as a quarter inch of rainfall per hour — a threshold exceeded by almost every thunderstorm that affects the metro. The neighborhoods most vulnerable to residential sewage backup are those at lower elevation within the combined sewer service area: East Baltimore's Belair-Edison and Clifton Park neighborhoods, South Baltimore's Locust Point and Brooklyn areas, and the Cherry Hill communities south of the city core experience documented sewage backup rates that are among the highest in Maryland. Baltimore's rowhome basement configuration — where the finished basement floor is typically 6 to 7 feet below grade — places occupied family living space directly in the path of sewage backflow, and the narrow rowhouse basement layout complicates extraction and drying operations. Baltimore City participates in Maryland's Chesapeake Bay restoration program, which partially funds sewer separation projects in the most affected areas, but completion timelines stretch decades into the future.