To secure a contractor to provide labor and combo sewer trucks to vacuum liquids, sludge, debris, solids, slurries, and similar materials and high-pressure jets for clearing stoppages, hydro-excavating, breaking up, and distributing debris and solids at City of Houston Wastewater facilities to aid in the operation and maintenance of City Wastewater Treatment Plants (WWTP), Lift Stations (LS), and the Collection System. These services will be provided as part of routine maintenance or in response to storms or environmental emergencies, ensuring the removal of liquid and sludge from sensitive areas to protect public health, wildlife, and the environment. Materials will be transported to City-designated locations as requested by the City.