The principal work of the Hayes PS Rehab. encompasses a broad range of improvements to mechanical, civil, odor control, architectural, structural, HVAC, plumbing, fire protection, electrical, and instrumentation systems. The scope includes providing all required labor, materials, and equipment necessary to furnish, install, and complete the work as specified in the contract documents and drawings.
Key tasks include the installation of a new bypass pump vault with associated piping, valves, controls, and appurtenances, as well as a new water service line from the main street to the pump station. Process and mechanical improvements involve installing and operating a bypass pumping system, removing and replacing pumps, process piping, valves, gates, climber screens, grinders, monorails, and the seal water system. Structural and architectural upgrades include roof shingle replacement, soffit and fascia board replacement, facility door and window replacement, removal of skylights, tile replacement, sound treatment installation, and modifications for equipment access and hoisting systems.
Civil and site improvements involve installing new drain manholes, stormwater pipes, an infiltration swale, new catch basins, valve vaults, sewer bypass connections, structural modifications, concrete repairs, and painting. HVAC upgrades include replacing the dehumidification unit, generator radiator and fan, dry well exhaust fan, heat piping, unit heaters, and installing new supply air systems and ductwork.
Plumbing upgrades feature installing traps in drains, mechanical trap seals, permanent sump pumps, and new potable water service connections, as well as replacing sanitary ejector sump pumps, potable water pipes, and bathroom fixtures. Electrical and instrumentation upgrades involve replacing the motor control center, generator, lighting systems, control panels, instrumentation, PLC control cabinet, HMI cabinet, uninterruptible power supply, communications equipment, transformer, and implementing a new control strategy. Temporary power for sewer bypassing operations and arc flash studies are also included.
Fire monitoring and suppression improvements include installing a Class I manual wet standpipe system, fire department connection, fire alarm and detection systems, and a radio repeater system. These upgrades ensure the facility meets operational, safety, and compliance standards.
