Surface Water Treatment Plant Rehab Phase 1

Description

Work for this contract is for the modification and rehabilitation of the existing Surface Water Treatment Plant. The project includes all work as shown and specified on the Drawings and as shown in the Technical Specifications. In summary, the work includes:Mobilization, bonds, and insurance by the Contractor to initiate project start-up, as specified in Contract Documents.Proposed improvements as shown on the Drawings and specified herein.Chemical Metering Pumps ImprovementsDemolish and remove existing chemical feed pumps, piping, fittings, calibration column and associated electrical and control components associated with the following chemical feed applications.Install new 12.5% sodium hypochlorite dosing pumps skids for granular activated carbon (GAC) backwash including pumps, piping, fittings, calibration column, flow meter and integral variable frequency drive (VFD) and controls.  Install new 12.5% sodium hypochlorite dosing pumps skids for Post-Chemical mixing including pumps, piping, fittings, calibration column, flow meter and integral VFD and controls.Install new 25% sodium hydroxide (caustic) dosing pumps skids for Post-Chemical mixing including pumps, piping, fittings, calibration column, flow meter and integral VFD and controls, and coating inside the room.Install new 40% liquid ammonium sulfate (LAS) dosing pumps skids for Post-Chemical mixing including pumps, piping, fittings, calibration column, flow meter and integral VFD and controls, and coating inside the room. Install new polyaluminum chloride (PACL) dosing pumps skids including pumps, piping, fittings, calibration column, flow meter and integral VFD and controls, and coating inside the room. New chemical protective coating inside the Liquid Ammonium Sulfate (LAS), chlorine dioxide, caustic soda, sodium hypochlorite and Polyaluminu