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A&P CONSULTING TRANSPORTATION ENGINEERS, CORP. GOLDEN SHORES PUMP STATION REHABILITATION (CCNA) RFQ 18-11-01 15 • Surging: This very common method flushes water backwards and forwards, as to prevent any bridging behind the screen and moving fines through into the hole.• Jetting: This development method uses the injection of high-pressure air or water to break up any filter cake and agitate and flush the adjacent gravel pack or formation• Hydro-fracturing: This is a second level of development in which high-pressure pumps are used to inject fluid to overcome the overlying rock pressure and open up existing and new fractures that will enable water movement and filtration Outfall Structure The existing outfall structure includes a 24” pipe that discharges into the Intracoastal Waterways there is a back flow prevention valve (TideFlex) at the discharge point. Our Team will perform an assessment of this outfall and will propose recommendations to the City. As proof of our experience on this field; APCTE is currently in charge of the Outfall Assessment Program of FDOT-District Six and has evaluated close to 200 outfalls structures in Miami Dade County, most of them discharging into the Intracoastal Waterways. Pipe conditions, environmental concerns, obstructions, presence of barnacle, back flows preventions, etc are among the parameters that should be evaluated in an outfall structure. Outfall Rehabilitation:Based on preliminary observations of the existing outfall; the following recommendations will be considered as part of the rehabilitation of this system: • Pipe Cleaning• Pipe Rehabilitation,• Barnacle Removal• Replacement of TideFlex Valve IMPLEMENTATION OF THE REHABILITATION PROGRAM: Basis of Design Report (BODR) Our Team will develop the Basis of Design Report (BODR) as the first phase of this task. the BODR will include the analyses of the different alternatives of the rehabilitation of the existing pump station. every alternative will be associated to a cost of implementation. BODR will include activities such as: site review narrative, public involvement plan, field observations and conversations/interviews, site photographs, right-of-way designation / easement identification, identification of municipal jurisdictions and special requirements, identification of all permitting requirements, materials to be used for the improvements, environmental concerns, installation methods, etc. As a result, our team will develop the BODR, which will be submitted to the City for review and approval. The BODR will justify what should be the most cost effective solution for the rehabilitation of the Golden Shores Pumping Station. Survey and Geotechnical Services The APCTE Team will identify the additional survey and geotechnical services required after reviewing the survey and geotechnical data provided by the City if any. Our surveyor sub-consultant, Longitude Surveying will be tasked with reviewing and vetting the existing topographic survey data and providing any additional measurements necessary to complete the design. They will have the responsibility of reproducing or crating “As-Built” drawings of the existing station; which is one of the main tasks at the pre-design phase of this contract. They will also follow our construction crews