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Waquoit Bay is a heavily loaded system and was degraded very long ago. Tom said given the amount of reduction required, most likely all red and blue areas will need to be taken care of Brian said some yellow area will have to be looked at too. Brian Howes asked that the criteria be kept open for future change and be open minded about what is primary, secondary areas to be sewered. Tom said that is exactly what will be kept in mind when developing scenarios. Ed Baker said he has different views of priorities. The goal is to reach a"magic" number within Popponesset Bay, because it creates conditions favorable to the restoration of eelgrass in the bay and improve the bottom sediment for animal life. First, we have to decide what it is that brings us to that goals by having the planning done. There is no sense getting way past there. Next have to consider groundwater time of travel and buy items with the longest procurement time for earliest delivery date. Define the whole job and then develop a methodology for order of implementation. It is opposite to Brian Howes' opinion. Ed said it upsets him to see the "red" end at the town line. Wastewater treatment discharge has to go back into the ground at some concentrations. Will need to know what number is going back into the ground and where, which is a second, competing scenario. Tom said Stearns and Wheler is contracted to model scenarios to achieve the ultimate target. The issue of timing will be discussed when doing the final plan. The goal of the plan is to do it most cost effectively to hit the target. To complicate it further,there are 3 towns contributing to the watershed. Mashpee does not want to clean more than its fair share. Tom received an email comment asking why we are not looking at composting toilets and is there support to pursue that. The pilot project ran a model using on site systems with average results of 19 parts per liter. Even with every house in the Popponesset watershed on a de-nite, the problem would worsen at build out because they are not removing enough nitrogen. John Cahalane, Selectmen, 37 Summersea Road. He said the Commission must pay attention to how much is too much (cost) and this has to be affordable to residents of Mashpee. How clean are residents willing to pay for? Tom agreed that is a very big issue. The town is being told by DEO what the TMDLs are and what the target will be. Is there an alternative to DEP's TMDLs? What is another level of clean? Brian Howes responded that based on science, you would have to convince the State and Fed. There is leeway in which estuary to clean up first. If the fix is too expensive it won't happen. Brian Howes said on site, alternative systems are maintenance and monitoring headaches. He said to forget natural attenuation and non direct removal and spend some fraction of funds on restoring ponds or restoring wetlands to intercept nitrogen. 3