The design life for the leachate lift station following rehabilitation is 20 years. Updates will be required for the control panel building, wet well, and metering building to achieve this. The control panel building currently needs to be updated to address safety concerns and to extend the life of the building. This includes: • Furnish and install new control panel and all new components, wiring, and conduit in the building. Reuse the existing connect that activates "High Water" and "Power Out" alarm lights. • Replace all conduits, seal offs, and wiring between the wet well and the building and prevent travel of gas from the wet well to the control panel building. Alter and seal building penetrations. • Replace the roof of the building. Replace any sagged or damaged areas. Replace trim and soffit. The functionality and life of the wet well are to be restored along with improving safety. This includes: • Isolate flow to the wet well to ensure that there is no leachate or gas entering while the construction is being performed. Proper confined entry procedures and atmosphere monitoring shall be followed when conducting any work within the manhole or other confined spaces. • Remove pumps, bases, piping and accessories from wet well. • Remove material buildup on the sides and base of the wet well along with sand blasting the surface. • Inspect and fix any cracks or leaks observed on the sides and base of the wet well. • Surface preparation of interior surfaces. • Coat the wet well with a corrosion resistant lining. • Remove, refurbish, and reinstall the two pumps within the wet well. • Replace the pump bases and guide rails with new stainless-steel parts • Remove and replace all existing fittings and ductile iron piping within the wet well. • Replace the piping from the wet well to within 5-feet of the metering building. This will require an excavation from the wet well to the metering building which will then be backfilled and restored. • Replace the concrete lid and re-install the existing hatch.
