Explanation
1. BACKGROUND:
A. Need. This legislation authorizes the Director of Public Utilities to enter into a professional design services agreement with Malcolm Pirnie, Inc. for the Wastewater Treatment Facilities Ash Lagoons Improvements project for the Division of Sewerage and Drainage. The Division has determined that these services cannot be performed by City personnel at this time, and has planned for the procurement of these services on a routine basis.
Both the Jackson Pike and Southerly Wastewater Treatment Plants have multiple hearth furnaces that incinerate biosolids. The ash produced is mixed with flushing water and flows by gravity to the two ash lagoons at each plant. Currently, decant water draining off the ash lagoons contains excess concentrations of copper and it is anticipated that Ohio EPA will soon require this decant to be eliminated from being released directly into the receiving stream. The Scope of Work for this project, at the City's discretion, will consist of the following elements:
A. This project will investigate means to combine the ash lagoon decant with the treatment plants' effluent at both WWTPs.
B. Jackson Pike WWTP:
1. Study the matter of leakage known to occur in the Jackson Pike ash lagoons and investigate options to replace them or provide new ash lagoon liners for both lagoons and a new ash flume.
C. Southerly WWTP:
1. Investigate new, smaller ash lagoons constructed out of the Scioto River floodway, due to floodway constraints.
The actual emplacement of the designed work will be by construction contract; this Design Professional (DP) services contract will provide: preliminary design, detailed design, bidding assistance, construction-phase engineering, start-up and commissioning assistance, record documentation preparation assistance, and other services for this project, as directed by the City.
B. Procurement Information: The basis for selection of the chosen professional engineering...
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