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8CES Consultants ● City of Sunny Isles Beach RFQ No. 18-11-01 associated to losses in the system to existing pump efficiency curves, to losses at the outfall, we will look at the entire system and with the input and verification of staff we will begin honing into the required pump station operational parameters. Once we’ve developed through a combination of review of best available documentation, large watershed modelling, pertinent field data gathering and interviews with operation and maintenance public works staff. At this point in time we will be looking at gathering big point items to begin understanding the operational range or environment the pump needs to work under along with an account of all the respective supportive and limiting factors where we see either challenges and opportunities. This process is by nature iterative, and we intend to hone in as quickly as possible to begin fine tuning our analysis and final determination. In this initial document, we will have analyzed the system needs and developed a preliminary concept for the pumping system design to meet those needs. This initial deliverable will be preliminary in nature and will require interaction with your planning/engineering/ operations staff to confirm all the conditions of operation. Based on our preliminary analysis, we will begin developing our initial concept for the pumping station design. The idea of this preliminary study is to provide enough information to support an initial meeting with your staff that would accelerate our progress on this task by at least a month. We believe that this initial assessment will not only save the project time and money, but it will also ensure that the respective stakeholder agencies are given the opportunity for early input that will help define the respective benchmarks to streamline the development. Current available data We understand the Golden Shores Pump Station is the pump station that serves the Golden Shores Neighborhood. We also understand from this RFQ, that the City has limited information on the efficiency and capacity of this pump station, as specific technical information related to the Pump Station and City Drainage Atlas were not included as part of this RFQ. The City is looking for a qualified consultant to provide the required professional services for rehabilitation of the Golden Shores pump station through analysis of condition assessments and performance evaluations. By way of background and research, however, our team has learned that the Golden Shores Pump Station was a significant element transferred to Sunny Isles Beach as part of the original stormwater Interlocal agreement with Miami Dade County. We also understand that the pump station encompasses a dual disposal system that includes a combination of gravity discharge via an outfall into Biscayne Bay and surficial vertical discharge via pressurized wells. We derive this primarily from our review of past maintenance undertakings initiated by the City, which leads us to derive that during its lifetime the pump station has gone through considerable rehabilitation and inefficiencies resulting from combined hydraulics. Historic records point out that the city conducted repairs on the well flap valves worn out by well up-flow as well as discreet lining repairs of the well and associated conveyance elements. The City also conducted one major overhaul of the Pump Station that was completed in 2003 along with a drainage system retrofit within the Golden Shores Neighborhood. Based on the information stated above, we can deduce that although the Pump Station remains fully operational to meet adequate levels of service, its hydraulic functionality would need to be evaluated in the backdrop of a whole new set of parameters, including but not limited to land use, updated stormwater regulatory criteria, increased flooding events, groundwater rise, brackish water intrusion, etc. There is also a whole slew of potential stressors that could impact the pump station’s functionality and would need to be considered when establishing a proper benchmark. CES has a deep bench of professional engineers