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10CES Consultants ● City of Sunny Isles Beach RFQ No. 18-11-01 In addition, the CES Team recognizes the challenges presented by the geological formations. Our Team’s experience on the Government Cut and Brickell Sewer Interceptors micro-tunneling projects for Miami- Dade County underscores our capabilities and local knowledge, as it provides us with a unique perspective om controlling the groundwater The nature of the work also requires a level of awareness for the public. This component of the project will require detailed communications and a sound public outreach plan, and we are adept at integrating stakeholders into our plans, by keeping them informed, addressing any concerns that arise and seeking mutually acceptable solutions that keep projects moving. These concerns, along with impacts to the community, mean that the design of the Pump Station must be well-planned to avoid the inherent risks associated during construction phase and impacts to the critical timelines established by the City. Our team members have literally been “in the hole” and lived these challenges first hand. For the City, this means a Design Team that already has an in-depth understanding of the geology and its impacts on underground construction, as well as an understanding of the nontechnical challenges that must be addressed to meet the expectations of the City. Below we describe our understanding of the major design elements for the construction of the Golden Shores Pump Station. As project specific geotechnical information was not provided in the RFQ, our Team’s collective geotechnical experience in Sunny Isles Beach provides us with good insight. Our team’s Geotechnical Engineer - Langan, has conducted extensive work in the area and has an in-depth knowledge of the soils conditions. However, geotechnical field investigation will be planned to: »(1) confirm our team’s assumptions regarding the subsurface conditions »(2) determine the site-specific geotechnical conditions, »(3) finalize the proposed design and construction approach for the Pump Station. The team will design structures for the required strength and durability requirements including consideration of the soils and groundwater as aggressive about corrosiveness. Permeability testing will be performed as needed to support final construction dewatering design for deep excavations. Pump Station Design Approach The design for Pump Station will meet the design, regulatory, and level of service (LOS) requirements defined in by the City and in compliance with the regulatory agencies having jurisdictional authority over the permitting for this project. Major design activities will include the following: »Hydraulic Design of the Treatment, Pumping and Discharge systems »Best Management Practices (BMPs) »Sizing of the Pump Station Components and Configuration »Additional System Refinement »Constructability Assessment »Optimization of Operation and Maintenance Protocols System Hydraulics The system hydraulic criteria will comply in the stormwater management system analysis conducted and provided in the assessment report. The report will include hydraulic modeling of the interconnected systems and associated contributing areas within the Golden Shores Area and will provide inflow information used by the City in the past. In the absence of specific modeling information by the City for the proposed Pump Station, the CES Team will conduct the necessary modelling to determine the elements necessary for pump station elements, operation and the conditions have been satisfactorily established to operate efficiently during a range of inflow scenarios/ conditions, and minimize pump cycling times that can affect the life-span of the pumps. In addition, the potential impacts of increased high tides by using an acceptable tail water condition representative of the anticipated high-water conditions caused by sea level rise projections.