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 Ch2M Hill Engineers, Inc. for the PAWP Hypochlorite Disinfection Improvements, CIP #690487-100000, in an amount up to $1,747,700.00 for Division of Water Contract No. 2133.
This project provides for engineering design and construction of improvements to the disinfection storage and feed facilities at the Parsons Avenue Water Plant. The Plant currently utilizes a chlorine gas based process and this project will convert the Plant to a liquid sodium hypochlorite based process. Constructing new facility and retrofitting existing facilities for storage and feed of an alternate disinfectant will provide for safer storage and handling.
The original agreement provided preliminary design services. Renewal No. 1 (current) provided detailed design and bidding services. This Modification #2 provides for Engineering Services During Construction.
Engineering Services During Construction will be completed in two parts as part of this contract renewal and shall provide clarification of contract documents for construction as required.
The Parson Avenue Water Plant serves multiple planning areas so this project is coded as “99 - Citywide”.
1.1 Amount of additional funds to be expended: $1,747,700.00
Original Contract Amount: $589,800.00 (Ord. 2896-2016PO050804)
Renewal #1 Amount: $1,632,200.00 (Ord. 2956-2019PO209640)
Modification #2 (current): $1,747,700.00
Final Services During Construction, Pt 2 (Future) $1,000,000.00 (Estimate)
Total (Orig. + Renewal/Modification): $4,969,700.00
1.2. Reason other procurement processes are not used:
The current consultant is familiar with the project and has completed all the preliminary design work to date. Bidding the work to another consultant will delay the project and will result in higher costs...
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