Specifications include, but are not limited to:1.1PROJECT BACKGROUND AND GOALS: The existing Main Pump Station is approximately 35 years old and is in need of several updates to improve its functionality, performance and safety. Issues and concerns identified with the existing lift station include: •Accessing the wet well is unsafe for workers during required cleaning operations. •Influent screening equipment has reached its expected service life. •The wet well is exhibiting significant signs of corrosion. •Wet well arrangement does not meet Hydraulic Institute standards which creates adverse flow conditions resulting in cavitation, loss of pump capacity, and premature wear on pumps, impellers, and bearings. •Electrical equipment including switch gear, breakers, MCC’s, and control panels are at the end of their useful life. •Transformers/ATS and pad mounted service enclosures are at the 100-year flood elevation. The station would lose power if flooded. •Pump station elevation/entry is 0.5-feet below the 500-year flood elevation. •Fuel tank for the diesel engine driven pump is below the 100-year flood elevation, access to fill the tank is 0.5-feet above the 100-year flood elevation. •Standby power can only operate two pumps. Not fully redundant standby pumping if unable to fuel and service the diesel engine which is used as the third pump when standby power is required. • Current pumping capacity does not meet future peak flow conditions.
