Specifications include, but are not limited to: Installation of eight fabricated stainless steel slide gates in the pump suction of the wet well to replace existing isolation knife gate valves on the inlet side of the pump systems; removing the existing pump suction wet well isolation gates (SG-16 and SG-17) and replacing them with new fabricated stainless steel slide gates; removing the existing pump discharge butterfly valves (BV-1 through BV-8) and replacing them with new in-kind; removing the existing pump discharge flow meters (FE-16 through FE-23) and replacing them with new meters; install new suspended grating platforms above the influent wet wells to provide operator access to the new isolation gate valves; remove the gates and seal valve bodies for suction and discharge isolation knife gate valves (KGV-1 through KGV-16), as indicated on the Drawings and as specified. The Ernest Street Pumping Station facility is to remain in operation during construction, with limited isolation available for individual pump systems to conduct the work, and for brief, controlled outages to isolate pump systems.
