Specifications include, but are not limited to: a) Demolition of five lime slurry grit classifiers to allow installation of five new lime slurry grit classifiers, b) replacement of grit line valves and selected sections of grit piping, c) relocation and modification of five existing lime slurry tanks, d) demolition of ten existing lime slurry hose pumps and piping to allow installation of five new lime slurry loop pumps and piping, e) replacement of each of the five existing 5-inch dry lime receiving lines at the top level of the Lime Handling Building, with required supports, fittings, and couplings at each of the five lime silos, f) ventilation improvements for Level 3, g) ventilation imprvements for the slaker control panels, h) addition of service air drops on Levels 3, 4 and 5.