Specifications include, but are not limited to: The work required under the Contract shall consist of, but is not limited to, the replacement of aging equipment, and improvement upon the performance of the anaerobic digestion system. The improvements will include application of a concrete corrosion coatings system for the internal concrete structures associated with the primary and secondary digesters including their associated overflow boxes, new radial beam gas holder floating covers for the primary and secondary digesters including thermal insulation system, new linear motion mixing system for the secondary digester and modifications to the existing linear motion mixing system for the primary digester, new sludge heat exchangers, new sludge and digester gas piping systems, new process and instrumentation control systems, new potable and service water piping systems, concrete repairs, site work, and HVAC, architectural, and electrical system upgrades. (collectively, the “Work”).