Specifications include, but are not limited to: The City of Henderson, Nevada, (CITY) is seeking bids for replacing the filter media in two potable water basins at the City of Henderson Water Treatment Plant (WTP). The WORK includes the removal and disposal of existing filter media; furnish and installation of replacement filter media. A. Removal: Two filter basins currently consist of approximately 60 inches of Granular Activated Carbon (GAC) media. Each filter is composed of one cell with approximate dimensions of 18 feet x 24 feet. B. Installation of new media shall consist of approximately 36 inches of Anthracite placed over 12 inches of Silica Sand. A. Remove and dispose of existing GAC media in WTP FILTRATION FILTER 01. B. Inspect the underdrain nozzles (to be completed by the CITY). C. Clean WTP FILTRATION FILTER 01. D. Install new media (anthracite and silica sand) in WTP FILTRATION FILTER 01. E. Disinfect and test WTP FILTRATION FILTER 01 and return into service (to be completed by the CITY). F. Repeat for WTP FILTRATION FILTER 03.