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Town of Mashpee Sewer Commission <br /> t <br /> 16 Great Neck Road North <br /> Mashpee, MA 02649 <br /> (PowerPoint) <br /> Customers Connected <br /> • Communication campaign—in place <br /> • Notify Customers of date Town can start accepting wastewater—May 20, 2025?— Notify ASAP <br /> • Customers can begin coordinating the work, schedule their contractors, and be prepared for the <br /> tie-ins <br /> • Town will notify RBO (Robert B. Our—contractor)to plan connection for three (3) large users <br /> • Town will issue NTP to grinder pump procurement contract <br /> • Town Activation—May 20, 2025,target <br /> o Large Users Connection under Town control <br /> ■ Summerwood <br /> ■ Sea Oaks <br /> ■ Asher's Path Apartments <br /> o Individual Residents—90-day <br /> o All Phase 1 users on board by August 18, 2025 <br /> Ms.Tripp stated that all three (3) of the large users are working with Robert B. Our Co. (RBO)to do the <br /> connections, even though the Town is not under contract to work with RBO, RBO is the Phase 1 <br /> contractor, and they are working with GHD to get this done. Ms.Tripp went on to say that the grinder <br /> pump procurement is almost ready to be executed. Bids have been in, and the E1 Grinder Pump System <br /> has been selected. <br /> (PowerPoint) <br /> System Start up and Flows: <br /> Wastewater Flow is Required to "Feed"the WRRF, Build a Healthy Biomass, and Start Achieving Nutrient <br /> Reduction <br /> Ms.Tripp stated that there are two (2)types of start up for the MBR units,the cassettes that are <br /> dropped are the biological process. There is enough flow to do hydraulic start up and there is enough <br /> flow to start treating. 10%of the capacity of the membranes are needed for hydraulic start up.The large <br /> users will get that. GHD requires 60%capacity of the membranes before treatment.The nitrification and <br /> de-nitrification will not be in full effect until the flows are up to 60%of the capacity done during the <br /> warranty period. Mr. Lyons asked how the system is filled in order to function. Ms.Tripp stated that <br /> when the pumps are pumping from the pump station,they are a full force main and push uphill.These <br /> force mains enter into a manhole then gravity takes over and goes to the plant. Mr. Lyons asked how <br /> long it takes to establish biomass. Ms.Tripp stated that it can be seeded to speed it up or let nature take <br /> over and it will grow organically.These will be seeded in the summer, and it is a good temperature to <br /> grow bugs.The lifecycle to grow the bugs is roughly 14 days to three (3)weeks and that will be adequate <br /> to complete the process. <br /> (PowerPoint) <br /> GIS System Will Support Communication with Community <br /> Design drawings will be linked to GIS (Geographic Information System) <br /> Property owners will be able to see their tie cards and sewer maps.The Engineer/Site Contractor that <br /> the homeowner hired will be able to access the same. Ms. Castaneda asked if something has to be <br /> worked on for maintenance on the system, will that be visible on the Town System. Ms.Tripp stated <br /> that it would not. <br />