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 ARCADIS U.S., Inc. for the HCWP Hypochlorite Disinfection Improvements project, CIP #690486-100000, in an amount up to $2,999,688.00 for the Division of Water.
This contract provides for design of improvements to the disinfection storage and feed facilities at the Hap Cremean 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. Retrofitting existing facilities for storage and feed of an alternate disinfectant will provide for safer storage and handling.
Work performed to date under this contract includes preliminary design services, detailed design and bidding services. This modification provides for engineering services during construction. This is the final planned contract modification.
The Hap Cremean Water Plant serves multiple community planning areas so this project is coded as “99”, city-wide.
1.1 Amount of additional funds to be expended: $2,999,688.00
Preliminary Design (Original Contract) $587,000.00 (ORD 2817-2016; PO053678)
Detailed Design (Renewal 1) $ 2,159,645.00 (ORD 1754-2019; PO190205)
Services During Construction (Modification 2) $ 1,950,000.00 (ORD 2987-2021; PO308061)
Final Services During Construction (Modification 3- current) $ 2,999,688.00
ESTIMATED CONTRACT TOTAL $ 7,696,333.00
1.2. Reason other procurement processes are not used:
This contract was bid through the City’s RFP process with the intention of doing planned modifications to add funding for each stage of the design process. This is one of those planned funding modifications so another procurement process is not required.
1.3. How cost of modification was determined:
The Consultant prepared a...
Click here for full text