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Popponesset Bay <br /> sewer c mmission <br /> -� Wastewater scenarios <br /> Scenario 1 No expansion of existing 1Nil s (l0 ppm Wpm <br /> I 4 new WWTFs with 3 ppm TN effluent; <br /> 5 discharge sites; <br /> —380 new I/A septic systems w/ 10 ppm TN effluent <br /> Scenario Z tJpgrade/expand existing 5ciiities as practical (3 ppm} <br /> new WWTF witli m TN effiuent; <br /> 4 discharge;sites <br /> Scenario 4 FaIRShare:. 3 new WWTFs.with 3 ppm TN effiuent <br /> 3 effiuent discharge sites; <br /> N130 new I/A septic systems wJ 10 ppm TN effluent <br /> Popponesset Bay -- <br /> E _ sewer Comrmission <br /> Wastewater Scenarios <br /> Scenario 5 Centralized approach: 2 new WWTFs (one in Mashpee, <br /> one5andv��ieh) with 3 ppm TN effluent <br /> 5 f_uent discharge sites, <br /> can�ert+existing pri�a e Mash WWT -S to pumping <br /> stations connected to Mashpee WWTF <br /> scenario 3 Nitre)(rm- based decentralized approach <br /> 15 WWTFs wwith 3}Z5 ppm TN effiuent <br /> 16 discharge sites; <br /> all new and expanded on�site septic systeflotreated <br /> with an-site NitrexT""'-with 3.75 pprn TN effluent <br /> Scenarids 1, 2, r &5 deweioped by Stearns and Wheler <br /> Scenario_3,develop�_d___b� L+ mt�ardo�Associaes <br />