Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to modify (Mod #1) a professional engineering agreement with GS-OH, Inc. for the Jackson Pike WWTP Stormwater and Floodplain Improvements, CIP 650277-100000 for the Division of Sewerage and Drainage.
The City’s Wastewater Treatment Plants require continual development and upgrades in order to keep processes and equipment up to date, in compliance, and running well. All re-development requires compliance with the City of Columbus Stormwater and Drainage Manual as well as OEPA Stormwater general permit and FEMA requirements. This project will provide a phased development stormwater and floodplain masterplan for the Jackson Pike Wastewater Treatment Plant. The first phase of the contract provided preliminary engineering, which analyzed several alternatives for meeting these regulations and account for any unmitigated historical impacts as well as impacts for future development.
The current legislation will provide for the detailed design phase to construct the chosen alternative. A future renewal will be for engineering services during construction to ensure the design intents are met.
1.1 Modification Information: Amount of additional funds: $879,100.78
Original contract $ 556,933.18 (PO242741)
Modification #1 (current) $ 879,100.78
Total Contract $ 1,436,100.96
1.2 Reasons additional goods/services could not be foreseen:
This was a planned contract modification for design services after alternatives analysis completed during preliminary engineering.
1.3 Reason other procurement processes are not used:
If this phase of the project were bid out it would result in inefficiencies and added fees, while attempting to bring a new consultant up to speed on the design, and repeating hydraulic modeling and analysis from the first phase. The design team that perfor...
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