Explanation
1. BACKGROUND
This ordinance authorizes the Director of Public Utilities to modify an existing engineering agreement with Hazen & Sawyer for the Residuals Management Plan Update Project - Part 2, CIP 690540-100001, in an amount up to $500,000.00.
The City of Columbus Division of Water (DOW) recently completed a Residuals Management Plan Update (RMPU) that evaluated the current residuals handling and disposal methods for the water treatment residuals (WTR), recommending that the DOW pursue dewatering and beneficially using the WTR as part of a long-term residuals management plan. Given the limited time frame to implement these improvements and put in place the systems and staffing to manage the residuals dewatering/hauling/disposal operations, along with the uncertainties involved with developing a beneficial reuse market/user base to take the WTR, the RMPU recommended that DOW implement turnkey dewatering services as an initial step in the implementation of the management plan. Turnkey services will involve a Design-Build contract and an Operations contract. Turnkey selected vendor will provide all equipment / manpower / materials to dewater, store, haul, and beneficially reuse WTR produced from the DRWP and the HCWP. DOW does not have staffing to address the Professional Engineering Services during Construction required during the Design Build process. This contract will provide these Professional Engineering Services during Construction.
A Request for Proposals was issued for the design of these improvements and opened March 6, 2020. Hazen & Sawyer was awarded the contract. Work performed to date under the initial contract includes assistance with developing procurement documents for turnkey dewatering services, assistance with evaluating the resulting proposal, and assistance with developing contract documents for the turnkey services. The work to be performed under this modification involves continued assistance with developing turnkey ...
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