Label
DPU041823SludgeEqualizationTank
Water Reclamation
Mike Schreidah (x2607)
Revised
Title
Authorizing the appropriation and expenditure of $399,278 from the Sewer Replacement Fund for emergency services to the Sludge Equalization Tank at the Bay View Water Reclamation Plant; authorizing the Mayor to enter into an emergency contract with Denali Water Solutions LLC; waiving the competitive provisions of TMC Chapter 187; and declaring an emergency.
Body
SUMMARY & BACKGROUND:
The Sludge Equalization Tank has a capacity of 1.2 Million Gallons, and receives primary thickened sludge from the Gravity Thickeners (GT) and secondary thickened sludge from the Dissolved Air Flotation (DAF) units. The sludge is mixed in the tank and pumped by plunger pumps to feed the anaerobic digesters. In September 2022, the tank became overloaded with sludge and grit, and its floating cover rose to the highest level, causing sludge to overflow onto the ground. The plunger pumps could not pump the mixed sludge due to the suction line being plugged. The Division of Water Reclamation contacted area contractors for emergency services, but only Denali Water Solutions (Denali) had the equipment and resources to perform the work. They pumped the sludge out of the tank and used a portable belt filter press to dewater the sludge. Then they hauled the biosolids to the Hoffman Road Landfill for disposal. The work was completed in late October 2022. This allowed the Division to clean the sludge suction line from the center of the tank to the plunger pumps.
Summary
NOW, THEREFORE, Be it ordained by the Council of the City of Toledo:
SECTION 1. That the appropriation of $399,278 from the unappropriated balance of the Sewer Replacement Fund is authorized to Account Code 6073-36000-4UC4223STDSTD for emergency services related to the Sludge Equalization Tank at the Bay View Water Reclamation Plant; and the expenditure of the same is authorized.
SECTION 2. That the mayor is authoriz...
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