Washington, D.C.
Washington, D.C.
DC Water
JA Underground
32% Minority Business Enterprise (MBE), 6% Women-Owned Business Enterprise (WBE)
51% District Resident New Hires, 35% Apprenticeship Hours for District Residents
L. S. Caldwell & Associates, Inc. (LSC) was responsible for the development, implementation, and monitoring of the Fair Share Objective initiatives for the District of Columbia Water and Sewer Authority’s (DC Water) Clean Rivers Project. This $2.6 billion program was the result of a Consent Decree signed by the District of Columbia, the Environmental Protection Agency, the Department of Justice. DC Water was required to clean up the Anacostia and Potomac Rivers by 2025. Five discrete portions of the work, called Divisions, totaling approximately $404,000,000. Twelve Divisions were anticipated.
Division E
Combined sewer overflows (CSOs) were diverted from existing combined sewers using three diversion chambers, then conveyed to the tunnel system along M street SE through a series of 48-inch and 108-inch diameter diversion sewers constructed using trenchless methods. The work also included the rehab of selected portions of the Eastside Interceptor sewer (ESI) and the Southeast Relief Water Main (SRWM).
Written by: QueveraAdmin