The San José-Santa Clara Regional Wastewater Facility Digester and Thickener Facilities upgrade included furnishing and installation of anaerobic digestion modifications to digesters 5-8, abandonment of digesters 1-4, electrical upgrades, upgrades to DAFT tanks 1-6 and 15-16 and abandonment of tanks 7-14, odor control, chemical upgrades and sitework related to yard piping and elevated pipe racks and new waste gas burner.