Specifications include, but are not limited to: Collection sites will operate from 9:00 AM to 2:00 PM. The City reserves the right to require the Contractor, at no additional cost to the City, to continue collection at any or all sites until 3:00 PM. 2. The Contractor will be supplied with a list of collection sites a minimum of two weeks in advance of each clean-up date. The Contractor is required to have all scheduled equipment at the assigned collection sites by 8:30 AM. All equipment shall arrive empty and in operable condition and must be removed from the sites by no later than 4:00 PM that same day. A comparable unit shall promptly replace any piece of equipment that becomes inoperable during a day. 3. The Contractor shall provide a point of contact for the City that will remain available by phone throughout the clean-up day. The Contractor also shall maintain radio or cell phone communication with each of his trucks and cooperate with the City site coordinator to move compactor trucks and/or change out containers throughout the day as directed by the City.