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

ENGINEER'S ESTIMATE $13,500,000 to $14,000,000 *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. This project includes improvements to several areas within the City of Ephrata's Water Reclamation Facility (WRF) required to improve treatment efficiency and ensure sustained successful treatment. Work includes a complete rehabilitation of the existing Influent Pump Station and construction of a new High Flow Pump Station, valve vault, and flow metering vaults. Coating of the Influent Pump Station wet well is offered as an Additive Bid Item. Work within the Solids Handling Building includes installation of a new shaftless screw conveyor auger, screw, and covers. Work within the UV Building includes channel modifications, removal of existing in-channel UV Disinfection equipment and installation of new equipment. During the period where this UV work takes place, the selected Contractor must utilize a temporary UV Disinfection system. The project also includes coating rehabilitation for Secondary Clarifier 2. Coating rehabilitation for Secondary Clarifier 1 is offered as an Additive Bid Item. Work within the Operations Building includes replacement of valves and piping modifications. Work also includes modifications to the existing aerobic digesters including installation of a new fine screen, construction of a new membrane bioreactor tank, insulation of digester structures, and installation of a new digester membrane thickening system. The new thickening system also includes installation of new positive displacement blowers and a three-sided blower structure. Finally, the project includes site piping improvements, site restoration, HVAC modifications within the Operations Building, and electrical improvements associated with the work noted above. The Work shall be substantially complete within 435 working days after the commencement date stated in the Notice to Proceed Contract questions shall be directed only to the office of the Project Engineer. The City of Ephrata expressly reserves the right to reject any or all Proposals and to waive minor irregularities or informalities in any Proposal; and to award the Project to the lowest responsive, responsible bidder that best serves the interests of the City of Ephrata.