Explanation
1. BACKGROUND
This ordinance authorizes the Director of Public Utilities to enter into a planned contract modification for professional engineering services during construction with Stantec Consulting Services Inc. for the Parsons Avenue Water Plant (PAWP) Treatment Residuals Disposal Improvements project, CIP #690579-100000, in an amount up to $4,775,000.00 for the Division of Water.
This is a contract for Professional Engineering Services (Design Professional or “DP” services) for the PAWP Treatment Residuals Disposal Improvements (CIP 690579-100000) project. The detailed design will include improvements needed to convey treatment residuals from the PAWP to the adjacent Lockbourne Road Quarry (LRQ) and to convert the quarry property to receive water treatment residuals.
Work performed to date includes Preliminary Design services, including regulatory investigations, alternatives evaluations, and a preliminary design report. This modification will fund Detailed Design services that will include the installation of a new PAWP residuals pump station; new dual residual force mains to the LRQ site; modifications to the PAWP lagoon decant pump station and towers; a residuals conveyance system; geotechnical work to provide equalization to quarry cells; flood protection measures; and a new LRQ decant pump station, force main, and outfall to Big Walnut Creek.
A future contract renewal request is anticipated for Engineering Services During Construction. This future contract renewal was identified in the Request for Proposals (RFP).
The improvements are directly related to the PAWP treatment process, which services multiple community planning areas (Planning Area - 99 Citywide).
1.1 Amount of additional funds to be expended: $4,775,000.00
COST SUMMARY:
Original Contract - Preliminary Design (ORD 2631-2019; PO204533): $ 1,575,000.00
Detailed Design - (Renewal #1) (current): $ 4,775,000.00
Engineering Services During Construction - (Future Renewal): ...
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