Specifications include, but are not limited to: A. Project Description The Project is located within the boundaries of the Wildcat Hill Water Reclamation Plant (WHWRP) Digester Complex located at 2800 N. El Paso Road, Flagstaff, Arizona and can generally be described as construction of one (1) new conventional mesophilic anaerobic digester (CMAD), a new central digester control building, electrical building, digester gas scrubbing, odor control units, site piping, electrical, instrumentation and SCADA improvements and supporting facilities and appurtenances (for pumping, heating, and mixing) to address the City’s needs for additional solids treatment and stabilization capacity and rehabilitation of the two (2) existing anaerobic digesters. The rehabilitation of the two (2) existing digesters may be eliminated due to budget constraints. The Contractor will also be required to construct connections to the existing thickening process (thickened sludge pumps) and grease systems. The Project is currently at 30% design, and in general, the Project consists of construction and installation of the following: 1. Primary Sludge and Waste Activated Sludge Mixing Box 2. Submersible Sludge Pumps 3. Digester Control Building 4. Anaerobic Digester 5. Polymer Feed Units 6. Digester Recirculation Pumps 7. Steam Generator 8. Dewatered Sludge Pumps 9. Odor Control Units 10. Digester Gas Scrubber 11. Yard Piping and Electrical Support 12. Site Grading and Paving Additionally, this Project includes coordination of natural gas lines that are installed within the site and connections to it.
