MMC Contractors is the mechanical contractor responsible for all above ground process piping, equipment setting, HVAC and plumbing for the Phase II improvements at LBVSD Atherton WWTP. The project consists of installing a new sludge incinerator, scrubber and process heat exchangers. Associated material handling systems include the sand feed, sludge transfer and ash disposal systems. Additional treatment improvements include a new belt filter press, modified conveyor system, ultraviolet treatment building and an effluent pump station. Plant operations (52 million gallons per day effluent flow) must be maintained throughout the improvements.

The project won a 2013-2014 Outstanding Mechancial Installation (OMI) Award for Plumbing over $3 million.