Site work and renovation of a civil project in Parkville, Missouri. Completed plans call for the renovation of a water / sewer project; and for site work for a water / sewer project.

The pre-bid conference will include a tour of the subject installations. For viewing of the sites at other times, bidders may access via public road rights-of-way. Bidders are encouraged to direct questions to the Engineer via e-mail. The project consists of repairs to two existing wastewater pumping stations and including the following general work items: setting temporary control panels, removing and replacing control panels and components, constructing and modifying terminal boxes, modifying conduit and wire, pouring small concrete slabs for terminal boxes, installing new variable frequency drives, and related work. A. Contract Type: Unit Price, as set forth in the Bid Form and Agreement Description of Work under this Contract: Improvements, repairs and rehabilitation ofthe PLATTE COUNTY REGIONAL SEWER DISTRICT sanitary sewer system will generally include the following: 1. Making repairs to two existing wastewater pumping stations and including the following general work items: setting temporary control panels, removing and replacing control panels and components, constructing and modifying terminal boxes, modifying conduit and wire, pouring small concrete slabs for terminal boxes, installing new variable frequency drives, and related work. A. The AC Drive shall convert the input AC mains power to an adjustable frequency and voltage, to provide microprocessor-based control for three-phase induction motors. B. The input power section shall utilize a full wave bridge design incorporating diode rectifiers. The diode rectifiers shall convert fixed voltage and frequency, AC line power to fixed DC voltage. C. The output power section shall change fixed DC voltage to adjustable frequency AC voltage. D. The adjustable frequency drive package shall include input EMI/RFI filtering. E. The AC drive shall have a user interface (keypad) that presents information in plain English text. The user interface shall include a Local / Remote button to switch between control at the terminal strip and the user interface (keypad). This button shall also switch between network control and the user interface (keypad). The keypad shall have Run and Stop keys and a manual speed potentiometer function.