11/17/2009 SEWER COMMISSION Minutes

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Mashpee Board of Sewer Commissioners Meeting Minutes November 17,2009 Mashpee Town Hall, Selectmen's Meeting Room Present: Chairman Tom Fudala, Vice-Chairman Don Desmarais, Clerk Matt Berelli CALL TO ORDER The meeting was called to order with a quorum by Chairman Tom Fudala at 7:00 p.m. APPROVAL OF MEETING MINUTES Mr. Desmarais made a motion to accept the minutes of 9/15. Chairman Fudala seconded the motion. All voted unanimously. AGENDA ITEMS Status of SMaST MEP (Massachusetts Estuary Project) Model Runs-Popponesset Bay Scenario Presentation by Ed Eichner Mr. Eichner, Senior Water Scientist at the Coastal Water Systems Program at University of Massachusetts in Dartmouth,presented the Commission and the public with the results of the Popponesset Bay scenario study using a PowerPoint presentation, a copy of which is attached for the record. Mr. Eichner stated that a memo had been forwarded to the Sewer Commission, also attached, regarding the review of the waste water scenarios for Popponesset Bay. The Chair announced that a presentation regarding the results of the Waquoit Bay scenario will be conducted by Brian Howes at the next Sewer Commission meeting on December 15,'. Tasks Three tasks were undertaken in relation to the Popponesset Bay scenario to include the preparation of a unified database of revised land use information, use of the unified database to prepare nitrogen loads for each of the watershed wastewater scenarios and use of the information to link with the water quality model, comparing it to TMDLs for Popponesset Bay. I I MEP Watershed N Loading Module A nitrogen loading module of the watershed was created based on existing conditions to balance out the existing water quality analysis completed in the bay. While preparing to initiate the scenarios, updated information was submitted that modified the information in the watershed and became an add- on because the model is calibrated and validated. Calibration and validation allows the group to test other factors or different nitrogen loads in the watershed and accurately reflects what is happening in Popponesset Bay. The original watershed nitrogen loading model will be given to the town at the same time as the technical report presentation in order to evaluate different kinds of scenarios. MEP Scenarios-Pre-assessment Backaround Mr. Eichner described the history of technical reports and the development of the various scenarios that led up to the results of the Popponesset Bay scenario.