07/22/2009 SEWER COMMISSION Minutes

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i Town of Mashpee Board of Sewer Commissioners Meeting Minutes July 22,2009 Present: Chair-Tom Fudala,Vice Chair-Matt Berrelli CALL TO ORDER The meeting was called to order by Chairman Tom Fudala at 4:30 p.m. AGENDA ITEMS Final Review of Unified Data Base and 5 Wastewater Facilities' Scenarios: Ed Eichner, of the SMaST,presented a timeline of their work and discussed issues encountered. In 2004 and 2005 the MEP models were released, containing both the land use (Mashpee& Falmouth200l/Barnstable& Sandwich 2000)and the water use. An on-site denitrification system scenario was done for the DEP Popponessett Bay Pilot Project in 2006 using the MEP model that contained the land use and water use information. In 2007,the Sewer Commission identified 5 scenarios,which the Commission's consultants developed and delivered between March and July,2008. Information about the scenarios' nitrogen loads was forwarded to the technical team with some revisions. At that point,the MEP technical team noticed that there were differences between the Stearns&Wheler and Lombardo results. In particular,the differences as it relates to the existing conditions needed to be resolved in order to compare the results of the scenarios. It was also discovered that there were different existing conditions in build out than there were in the MEP model, creating a concern about how the MEP model would be applied with the new information. In August of 2008,an agreement was struck between SMaST and the MEP technical team to correct the differences by creating a unified database,which then highlighted an issue of the way in which some parcels had been assigned to different watersheds. In February 2009, it was agreed that the unified database would be created with the Cape Cod Commission providing GIS services. In April,the initial version of the unified database was received from the Cape Cod Commission. From April until June,the QAQC was completed and database refinement occurred. In late June, it was determined that the QAQC was complete and existing end loads in both the Lombardo and Stearns&Wheler scenarios matched. Results of the unified database were forwarded to the consulting firms for their review. SMaST is now seeking confirmation from the Commission that there are no changes to the scenarios to which Chair Fudala responded that there are no changes from the conceptual scenarios. Bill Hall, of Stearns&Wheler, indicated that they have not spent a lot of time reviewing the information and was awaiting direction from the Sewer Commission but did not indicate the need for any changes. Gary Rubenstein,of Lombardo Associates, stated that they have not completed their review of the database and had based their scenarios on the old information. Lombardo Associates would like more time to confirm that their scenario does not require any changes, which will be completed next week. Chairman Fudala questioned if he anticipated