Title
Requisition No. REQ-0002030
Removal of Lime Stabilized Dewatered Sludge
O&M
Body
Agenda of: February 26, 2025
Item No.: 2025-039
Amount: $11,848,640.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Suzanne R. Coffey, P.E.
Chief Executive Officer
Great Lakes Water Authority
DATE: January 27, 2025
RE: Requisition No. REQ-0002030
Removal of Lime Stabilized Dewatered Sludge
Vendor: Waste Management of Michigan
Status: New Contract/PO
MOTION
Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Requisition No. REQ-0002030, "Removal of Lime Stabilized Dewatered Sludge" with Waste Management of Michigan, at a cost not to exceed $11,848,640.00 for a duration of 1,886 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The GLWA Water Resource Recovery Facility (WRRF), generates a by-product (sewage sludge) through treatment of domestic wastewater. Sewage sludge includes scum or solids removed in primary and secondary treatment processes. The WRRF generates, on average, 1,440 wet tons per day of solids. Operations utilize three (3) methods of processing to adequately dispose of the generated solids. The processes include (from most favorable to least favorable): the Biosolids Dryer Facility (BDF) that produces class-A biosolids which is then land applied as fertilizer; multiple hearth incineration which converts the sludge into an ash product which is landfilled; and Central Offload Facility (COF) which processes dewatered sludge with the addition of lime for stabilization prior to landfill disposal. The lime stabilized dewatered sludge is a solid residual similar to slightly wet dirt. The GLWA continues to work with the Michigan Department of Environment, Great Lakes, Energy and t...
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