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CONTRACT K-2021-50: A CONTRACT BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND GARVER, L.L.C., IN THE AMOUNT OF $415,000 TO PROVIDE ENGINEERING SERVICES FOR SLUDGE DEWATERING IMPROVEMENTS AT THE NORMAN WATER RECLAMATION FACILITY.
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BACKGROUND: Wastewater generated within the City is conveyed to the Water Reclamation Facility (WRF) located at 3450 S Jenkins Avenue where it is treated and discharged to the Canadian River. Multiple treatment processes are used to produce the high-quality effluent water that is discharged. As a byproduct of treatment, biosolids are generated that go through a separate process of thickening, digestion, dewatering and land application for final disposal.
As part of the biosolids process, the WRF currently uses centrifuges that spin at a high rate to get excess water from the biosolids to generate a thicker biosolid. This process reduces the amount of trucks and staff to land apply these biosolids. The land-applied biosolids provide a benefit to the land owner by providing a free organic amendment to the soil and this method of disposal also benefits the City by providing the lowest cost disposal option.
DISCUSSION: The existing dewatering centrifuges have experienced multiple failures and have proven not to be reliable for continued operations. Timely replacement of these units is necessary to allow for efficient operations at the WRF.
Garver, LLC was determined to be the best option to evaluate and design a new dewatering solution for the facility. Garver, LLC was the engineer for the recent expansion and improvement of the WRF to its current condition and they are also working on the indirect potable reuse pilot project at the WRF. Their work on this project will be to evaluate several technologies to determine the best alternative for the City and to then provide design, bidding, construction, and programming services for the project.
Unencumbered funds in the amount of $500,000 are available in WRF Dewater...
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