The North Charleston Sewer District is accepting Request for Proposals (RFPs) from contractors interested in the opportunity to submit a proposal based on the following Scope of Work. 1. The Work to be performed under this Contract includes, but is not limited to, constructing the Work described below and all appurtenances related to the Work. The Work shall be as follows: a) Replace existing blowers with pre-selected multistage centrifugal blowers. b) Replace existing air distribution piping, diffusers, and control valves. c) Replace existing MV electrical gear, channel mixing and instrumentation equipment. d) Implement structural repairs in the aeration tanks. 2. Using the CMAR Phase I Preconstruction Scope of Services: a) The Proposer must recommend revisions to the minimum Scope of Work as outlined in the Agreement, that the Proposer feels would be advantageous to NCSD. This will include any additional subcontractor services that the Proposer would recommend. An estimate of the associated costs for any recommended revisions will be required. In addition, the Proposer must submit a schedule of preconstruction tasks and activities to occur within a 9-month timeframe from NTP that corresponds with the proposed revised Preconstruction Scope of Work. b) A detailed narrative of the proposed services, meetings and interactions will be required in the CMAR Contractor’s proposed Scope of Work. The Proposer must identify methods and approaches that will be used to promote collaboration between the CMAR Contractor, the Engineer and NCSD. Information regarding the CMAR Contractor’s project management software available to the Engineer and NCSD to increase efficiency for management and exchange of contract documents will be required. The Proposer must describe the approach that will be used to develop the GMPs, along with the appropriate levels and types of contingencies recommended. The Proposer will be asked to address the level of design completion required for various contingency options.
