6/13/2017 SEWER COMMISSION Minutes

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Mashpee Sewer Commission E Minutes of Meeting Thursday, June 1 , 2017 -Ockway Meeting Room,Town Hall Sewer Commissioners Presente. Torn Fudala, Bradford Pittsley, Torn Burns, Joseph Lyons Also Present; Anastasia Rudenko,, GHD, Jeff Gregg, GHD Absent: Glenn Santos Call to Order: Meeting called to order by Chairman Tom Fudala at 736 p.m. Approval of Minutes: February 16�2017—no minutes Status of DRI Review The Chair stated he didn't get a notice regarding ars upcoming meeting. He did get notiffied that they are doing this new 208 plan consistency review that would be a lot quicker than the IRI process This will be available.in the fall Status of other tasks Mashpee ommons[Wampanoag village Sewer Connections Study Anastasia Rudenko, GHD, gave a slide presentation of the Existing WWTF and Collections System Evaluation —Update She said the project is part of the first phase of the overall recommended plan to preserve Mashpee River and reduce nitrogen impacts-on Popponesset Bay and Waquoit Bay, which has been approved by the State.She showed the Wampanoag treatment facility, which was built in 2011* .overall treatment design allocates' 2 51,000 gallons per day which is reserved for offsite nitrogen mitigation. She reviewed the analysis which shoved that there is a small amount of potential excess capacity in this design. She spoke about options to expand the facility and the limitations of sending the flow to the Wampanoag facility. The second facility analyzed in this study is the Mashpee Commons Limited Partnership (MCLP) 'wastewater Treatment Facility. This facility was constructed in 1988 and the facility was intended to be expanded in 4 phases. It currently has been expanded to 3 phases. Four town buildings have been connected to the system-and, according to available planning-documents from M LP, the Quashnet School and the Combs School are expected to be connected to the system. Recently,the-Laurentide Assisted Living Facility has been added to the system, which was not in the original'pla.nn. The impact of additional flow to the M LP WWTF needs to be evaluated by the design engineer and manufacturer. She noted existing flows on a chart. She explained the hydraulic analysis that was conducted on the collection system at Mashpee Commons. The peak flow of the existing treatment facility is 180,000 gallons per day. A preliminary collections layout was developed and she noted that on a slide. Cost estimates were developed based or'the service to the entire subareas, A nitrogen impact analysis was also conducted as part of the study. The next steps would be to continue negotiations with private entities to solidify how much flog would be available for residential and municipal properties and continue with the desi-gn of the proposed site,. The Town should also continue the imlilementation of its plan recommendations and proceed with the design of the proposed Site 4 facility+ The-Chair noted the real issue: is there enough excess capacity at each of the facilities for the Town needs, particularly at Mashpee Commons9 The Wampanoag facility is in limbo. Mashpee Commons is updating their master plan. There was a brief discussion on the impact of the shellfish at Popponesset Bay and how they are performing. Not knowing what Mashpee Commons' master plan is makes 1t difficult to finalize any plans.