Explanation
1. BACKGROUND:
Need. This legislation authorizes the Director of Public Utilities to enter into a planned modification of the professional engineering services contract with Camp, Dresser, McKee, Inc. (CDM), for the Sewer System Capacity Model Update Project, for the Division of Sewerage and Drainage. This ordinance will authorize the establishment of $3,225,880.02 in additional funding. Under the terms of this contract, the City has the right to contract for additional services to fulfill emergency capital improvements or smaller scoped projects, subject to the approval of a contract modification by City Council to provide general engineering services for the Division of Sewerage and Drainage.
The potential need for the additional work was foreseen and so stated in the original contract's legislation, and is therefore a planned continuation of the services originally included within the existing contract's scope of service. It is not deemed either feasible or reasonable to suspend work with the entity currently under contract and undertake continuation of these services with another procurement. The cost of this third modification is a continuation of the vendor's current pricing structure, as verified by City staff. The Division has determined that these services cannot be performed by City personnel at this time, and has planned for the procurement of these services on a routine basis.
This project will continue development and enhancement of the City's Sewer System Capacity Model (SSCM). The SSCM is the City's long-term commitment to accurately evaluate collection system capacity deficiencies and devise economical solutions to those deficiencies. Columbus' efforts to accurately predict sanitary flows began with the "Olentangy Scioto Interceptor Sewer Tributary Study - Phase I Report". That first effort ended with the "Columbus Sewer Capacity Study - Phase III" report and model. This, in turn, was updated in method and extent...
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