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4. Fair Share: each town addresses its fair share within its town boundaries, based on pilot project/MEP work. Only Popponesset Bay was evaluated. S &W"created" fair share for Waquoit Bay. This is contingent on how towns want to deal with their issue. Advantages: responsibility distributed to each town; likely to remove more nitrogen than necessary to meet TMDL; could discharge some effluent outside of watershed. Disadvantages: site availability for treatment and discharge; participation from each town. 5. Centralized approach, one plant serving Waquoit Bay watershed, one serving Popponesset Bay watershed. Existing facilities become pumping stations to serve the new centralized plants. Tom asked if there is nitrogen treatment in Sandwich or Barnstable, under this scenario? Jeff said no. They are dealing with the issue based on planning zones. They are still going through the process, have to start somewhere and then make refinements. Advantages: minimizes operations, maximize discharge outside of watershed, with pipeline. Disadvantages: abandon existing facilities, is a big disadvantage; availability of sites. Upcoming process: will refine areas, meet with adjacent towns, do a preliminary infrastructure layout, order of magnitude for cost of development. Phase V: narrow it down to 3 scenarios. Phase VI—Recommended plan, in more detail. Tom said the pipeline could be part of any of these scenarios,yet it is mentioned in some but not others? Jeff said it could,trying to stay"true"to the scenario. Pio gave an update on the Nitrex scenario. He is still waiting for some data/information on acreage and data from other towns. He said that he does not agree with some of the statements made regarding advantages and disadvantages of the Nitrex scenario. He requests that S&W hold their comment until they are more familiar with the technology. Pio asked if S &W will identify disposal sites. Jeff Gregg said they will identify the watershed the disposal site is in but not the final sites. Will identify candidates for prospective sites. Pio asked the timeframe for completion of remaining tasks? Jeff Gregg said there is a schedule in the scope of work but because of delays with multiple towns, don't have a firm date at this point. The scenarios will be done next month or so and then run through the model. Pio reviewed his work, presented a chart which showed target to remove in each watershed, the variety of tools to accomplish this,the controllable and non controllable sources. They are using kilograms of nitrogen that needs to be removed; using mass numbers, not percentages. He will then develop scenarios that will remove that amount of nitrogen. He will also look at non wastewater sources. Tom asked how they will do that. Pio said with the Nitrex"fence". 2