he purpose of this contract is to obtain professional engineering, inspection support, and technical services to support the Washington Suburban Sanitary Commission’s (WSSC) Prestressed Concrete Cylinder Pipe (PCCP) Management Program. Services will be performed on an as-needed basis to support condition assessment, inspection, evaluation, rehabilitation planning, emergency response, and long-term management of WSSC’s PCCP transmission infrastructure.he purpose of this contract is to obtain professional engineering, inspection support, and technical services to support the Washington Suburban Sanitary Commission’s (WSSC) Prestressed Concrete Cylinder Pipe (PCCP) Management Program. Services will be performed on an as-needed basis to support condition assessment, inspection, evaluation, rehabilitation planning, emergency response, and long-term management of WSSC’s PCCP transmission infrastructure.he purpose of this contract is to obtain professional engineering, inspection support, and technical services to support the Washington Suburban Sanitary Commission’s (WSSC) Prestressed Concrete Cylinder Pipe (PCCP) Management Program. Services will be performed on an as-needed basis to support condition assessment, inspection, evaluation, rehabilitation planning, emergency response, and long-term management of WSSC’s PCCP transmission infrastructure.