Specifications include, but are not limited to: The City of Antioch is requesting bids for a (2) two-year contract with possible (3) three, (1) one-year extensions for centrifuge rental with a 60,000-gal elevated tank, poly-mixer feed pump and any other necessary operation items the City may need to operate the rental equipment. The rental equipment must be compatible with current City infrastructure. The City currently operates with a Humboldt decanter type S3-01 with a model number of J93103 that has a maximum bowl speed of 2200 RPM and a total weight of 7500 lbs. The rental equipment must be compatible with current City infrastructure. The Contractor will be responsible for maintenance on the rental equipment, hauling, and disposal of sludge on an as-needed basis. The Contractor must respond to the City of Antioch and any of its representatives within 4 hours of being notified of work to be done. The Contractor will then have 24 hours after they have responded to the City to arrive on site and begin work. If the Contractor fails to meet any of the deadlines without prior written permission from the City stating otherwise, the City may choose to move on to the next lowest, responsible bidder. Although services under this contract shall normally be performed during normal working hours, Monday through Friday, 7:00 A.M. to 4:00 P.M., the Contractor may be required to work outside these hours, specifically in case of an emergency. Upon award, the Contractor shall provide the City Representative with the telephone number(s) of the person or persons to be called in case of an emergency.