Title
Consideration of and action on an ordinance to amend the Fiscal Year 2023-2024 Water & Sewer Fund Budget for the Wastewater Treatment Plant digester structure evaluation.
Body
Summary:
The Fiscal Year 2022-2023 budget for the Water and Sewer Fund included $101,500.00 for the inspection and evaluation of the digester at the Wastewater Treatment Plant performed by Ardurra. Due to a shift in the project completion timeline, the project was not completed in its entirety in FY 2022-2023 as originally anticipated.
The total contract cost for the inspection and evaluation is $101,199.00 of which $40,479.60 has been expensed. A budget amendment in the amount of $61,000.00 is necessary to fully fund the remaining cost of the contract in Fiscal Year 2023-2024.
Project Background
The digester at the Deer Park Wastewater treatment plant was constructed in 1970s. The City hired Terracon to conduct a visual inspection of the exterior of the digester and reported vertical cracks in digester basin concrete walls, leakage of liquid through several vertical cracks and vertical joints between walls at corners of the digester, and exposed aggregate on the interior side of walls facing wastewater sludge. The basin structure has been in service for nearly 50 years and the effectiveness of implementing repairs on the exterior side to protect the concrete walls is limited.
The City has contracted with Ardurra to remove the digester from service and inspect the structure in order to determine the rehabilitation scope, estimate cost opinion, and rehabilitation schedule. The total cost of the inspection and evaluation is $101,199.00.
Fiscal/Budgetary Impact:
Add $61,000.00 to the Fiscal Year 2023-2024 Water & Sewer Fund Budget for the Wastewater Treatment Plant (Account No. 400-502-49410, Consulting Engineer Fees) to be funded from the prior year revenue (fund reserves) in the Water & Sewer Fund, which is available for this purpose.
Recommended action
Approve the ordi...
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