Public Projects

The general scope of work for this project included in the base bid is the abandonment in place of approximately 1,300 LF of 18-inch, 30-inch, and 36-inch sanitary sewer mains, and a 27-inch sanitary sewer force main by slurry fill abandonment. Also included in the scope of work is the abandonment of four sanitary sewer manholes.

Project Description: Adjustment of sanitary sewer manholes and sanitary sewer flush holes and drop connections to grade on various streets within the City of Napa that have been paved over with approximately 2.5 inches of HMA. A valid Class A, Class C-34, or Class C-42 California contractor's license is required to bid on the Project.

The general scope of work for this project included in the base bid are as follows: (1) removal and replacement of existing tide gates; (2) partial demolition and retrofitting of a 72-inch corrugated metal pipe riser (Outfall #2); and (3) complete demolition and removal of 54-inch, 12-gauge, asbestos lined and bituminous coated corrugated metal outfall piping and fittings (Outfall #3). Also included in the scope of work as a bid alternate is the partial demolition/removal and abandonment in place of three (3) 21-inch, 14-gauge, asbestos lined and bituminous coated corrugated metal outfall piping, abandonment of 36-inch, 14-gauge, asbestos lined and bituminous coated corrugated metal piping and demolition and abandonment of a 72-inch corrugated metal pipe riser.

Project Description: The work includes rehabilitation of approximately 1,810 LF of 39-inch trunk sewer mains by Cured-In-Place Pipe (CIPP) lining and the rehabilitation of 5 trunk manholes within the project area. Also included in the scope of work as Bid Alternate B is the rehabilitation of approximately 910 LF of 39-inch trunk sewer mains by CIPP lining and the rehabilitation of 3 trunk manholes within the project area. Also included in the scope of work as Bid Alternate A and C is the use of non-styrene, no VOC CIPP resin for the CIPP lining work in the Base Bid and Bid Alternate B, respectively.

Project Description: Installation of a 3rd large submersible pump at the recently reconstructed West Napa Pump Station, which includes piping modifications and electrical and instrumentation work. Also included in the scope of work is the following: installation of a sump pump in the flowmeter vault, installation of safety grates, installation of lighting mounted to the solar structure, installation of door switches connected to SCADA, installation of bird netting for the underside of the solar structure, and installation of a platform for the existing odor control unit and generator.

Adjustment of sanitary sewer manholes and sanitary sewer flush holes to grade on various streets within the City of Napa that have been overlaid with approximately 2.5 inches of asphalt concrete. A valid Class A, Class C-34, or Class C-42 California contractor’s license is required to bid on the Project.