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CONTRACT K-1819-75: A CONTRACT BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND GARVER, L.L.C., IN THE AMOUNT OF $106,900 TO PROVIDE PRELIMINARY DESIGN SERVICES FOR THE CO-COMPOSTING IMPROVEMENTS.
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BACKGROUND: The Co-Composting Improvements project (WW0312) will provide benefits to both the Water Reclamation Facility (WRF) and the Yard Waste Composting Facility, both of which are located south of Highway 9 between Jenkins and Chautauqua. The project will co-mingle treated "Class B" wastewater sludge (biosolids), currently produced at the WRF, with yard waste and/or wood chips currently available at the Composting Facility. Additional information on each of these facilities follows.
Yard Waste Composting Facility: This 10-acre facility opened in September 2009 and contains six acres for compost windrows. The additional area provides for material unloading and loading as well as a maintenance road and perimeter security fencing. The construction cost of the compost facility was $1.8 million and includes a looped irrigation water system to supply water for proper moisture control and curing. The composting facility has reduced the amount of waste disposed at the landfill by an average of about 15,500 tons each year (FYE16 through FYE18) and produces a valuable end product for our citizens. Over the last 3 years, landfill disposal fees have been reduced an average of approximately $320,000 annually (not including transportation costs).
Yard waste including grass, leaves, shrubs, and tree limbs two inches in diameter or less are collected by Sanitation crews once a week from Norman residents. Yard wastes from commercial landscaping or yard service companies are accepted at the composting facility at no charge. Yard waste is ground into mulch by a tub grinder, mixed in the correct proportions (nitrogen to carbon or green waste to brown waste) to aid decomposition and laid out in long rows called windrows. Initially, the windrows are about six feet high ...
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