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Our understanding is that the City and American Structurepoint intend to submit for IDEM approval <br />this fall and obtain permit approval by the end of the year. Since the project design is currently at <br />about 75% complete, Kokosing can begin the budgeting process soon after project award. Our goal <br />would be to have the GMP budget established this fall, and begin the procurement process for long <br />lead equipment this year, in preparation for construction mobilization in the spring of 2024. <br />WWTP EQ Basin Construction Approach <br />Construction mobilization for the EQ Basin and associated structures would begin in the spring <br />of 2024. This will allow ample time to finish design, obtain permits, establish the GMP budget, <br />and procure materials needed to start construction. The first construction activities will be site <br />mobilization, setup, SWPPP installation, and the establishment of temporary power. Kokosing will <br />work with the City and local power company to determine the site needs for dewatering, pumping, <br />and construction activities. Getting power, even on a temporary basis to the work area, is likely to <br />take months to achieve. Information on anticipated pump and construction loads will be required to <br />engineer the temporary service. It is possible the permanent transformer could be available prior to <br />the start of construction, but Kokosing and the City will need to work collaboratively with the electrical <br />utility to see what options could be available for this installation. Due to the amount of dewatering <br />that will be required onsite, much planning, engineering, and prep work will be required to prepare the <br />site after mobilization. <br />Site clearing, tree removal, and the removal of the existing asphalt path will occur after site mobilization <br />has been completed. Once dewatering activity has started and the ground water levels are down to <br />the required level for construction activity, we will begin installing the new 48" interceptor line. This <br />line will need to be completed and tied into the existing system to allow flows to be re -directed around <br />the new EQ Basin prior to removing the existing sanitary lines from service. This work is required to <br />allow the excavation work for the new EQ basin and pump station to begin. <br />The EQ Basin and pump station construction will start after the interceptor line has been placed <br />into operation. This allows us to focus on the construction of these structures and the new control <br />building while keeping the existing 96" CSO line and outfall structure in service. Our goal with this is <br />to reduce the amount of time CSO bypassing will be required on the project. During the construction <br />of the EQ Basin and pump station, we will install structures 6 and 7. These structures will be <br />necessary to setup the CSO bypass pumping system prior to the demolition of the existing piping/ <br />outfall structures. During this time, we will also relocate the existing 16" DIP waterline around the <br />location of the structures. Once the waterline has been relocated and structures 6 and 7 are installed, <br />we begin setting up the CSO bypass system in preparation to remove the existing outfall structure <br />and piping from service. <br />With the existing CSO piping and outfall structures removed and CSO bypass system operation, <br />construction of the new diversion structure, overflow structure, and associated underground piping <br />can begin. Once these structures are installed and all underground piping is complete, we will be in a <br />position to begin testing on the new system in preparation to remove bypass pumping and dewatering <br />onsite. <br />Based on lead times we have experienced on similar projects, we anticipate the electrical gear and <br />generator for the new EQ Basin system will not be available until early 2025. This is subject to change <br />contingent manufacturer availability and product selection, but these are critical components to the <br />startup and operational process for the new equipment. Our goal with our sequence of construction <br />is to get the majority of the new infrastructure installed prior to the arrival of these items. <br />Final commissioning, testing, and system operation will occur in the fall of 2025, ahead of the City's <br />Long -Term Control Plan deadline of December 2025. <br />SOUTH BEND, INDIANA GSC 31 <br />