Facts on the WPWMA’s $120 million State-of-the-Art Facility Improvements

Shovels and hard hats are lined up and on display at the groundbreaking ceremony

The total cost of the facility improvements will be $120 million.


Minimum recovery rates for municipal solid waste (general commercial and residential garbage) will be increased from 22% to 60%.


Minimum recovery rates for construction and demolition material will be increased from 50% to 65%.


The new high-diversion Materials Recovery Facility includes state-of-the-art technology that has been designed to achieve compliance with SB 1383 and recover 75% of organic waste with no changes to current collection methods.


The new MRF will have the capacity to process 110 tons per hour.


The new Construction & Demolition (C&D) facility will have the capacity to process more than 60 tons per hour.


The new compost facility will utilize aeration trenches and GORE covers for processing food waste, which can reduce unpleasant odors by 90%.


RoBB infrared AI-powered robotic sorting machines will simultaneously sort up to 4 different materials and recover up to 70 recyclable items per minute – which is higher productivity and reliability than two human sorters.


The new MRF and C&D facility will employ magnets for recovering metals and eddy currents to recover non-ferrous metals.


TOMRA Sensor Based Sorter can accurately process materials (plastics) in micro-seconds and uses sensors and air valves to eject certain materials for recovery.


Robotic QC station will remove non-fiber contamination. The clean fiber is then conveyed to a storage bunker for baling or to a Rolling Bed Dryer to upgrade the fiber quality.


Excavators stand behind concept drawings and samples of the waste material with which the MRF deals.
Attendees could view concept drawings of what the new facilities will look like. Photo credit: Lisa Zeng Photography