10/11/2018 BOARD OF HEALTH Minutes

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`p4. �''9 Town of Mashpee 16 Great Neck Road North Mashpee, Massachusetts 02649 BOARD OF HEALTH - PUBLIC SESSION Mashpee Town Hall -Waquoit Meeting Room Minutes of the Meeting of October 11, 2018 Board Members Present: Member Absent: Also Present; Brian Baumgaertel, Chair Laurel Almquist, Co-Chair Glen Harrington, Health Agent Mallory Langler, Clerk Chair Brian Baumgaertel called the meeting to order at 7:03 PM. APPOINTMENTS 7:15—Title 5 Variance—23 Santuit Lane Danny Gonsalves from Down Cape Engineering introduced himself and explained the purpose and intent of the request for property line variance to a town-owned property. Brian Baumgaertel noted the utilization of the UV unit, and shared concerns that it requires a lot of maintenance,and kills good as well as bad bacteria in the water. He asked if UV units have been used in the past for this type of groundwater, and Glen Harrington answered that it is required in our innovative technology regulation if the distance to the border of vegetative wetland (BVW) is less than 75'. Mr. Harrington commented that this is a two- compartment tank with the second compartment being a pump, and the UV unit cannot be after the pump because pumping through the UV unit is ineffective. Mr. Harrington reminded members that, if pressure distribution is required, the Board does not require a denitrification system. There was discussion about the benefits of the distribution system, such as better distribution and longer retention time in the soil. Ms. Langler asked if the regulation is variable on the UV unit requirement, since it does not seem to be effective with the system being presented. Mr, Harrington answered that this would be at the Board's discretion, but reminded members that it has been consistently applied as part of their regulation. He added that a variance should be requested to adjust the distance from the soil absorption system (SAS)to the crawlspace from 20'to 10',with a liner provided. Mr. Harrington specified that approval of this Title 5 variance should include an annual inspection requirement, and a one-year minimum contract with a Class II WWTP operator that must be maintained for the life of the septic system, He stated that, per the regulation, the 0 & M shall include quarterly sampling for total coliform for the first two years. Mr. Baumgaertel reminded Mr.Gonsalves to stake out the project area due to the proximity to the property line. There being no further questions or discussion, Mallory Langler made a Motion to approve the Title 5 Variance at 23 Santuit Lane with the following conditions: 1) a second tank be provided for a pump chamber with the UV light in between the septic tank and pump chamber; 2) the property line be staked in the field prior to SAS installation, 3) the variance of the soil absorption system distance to the foundation be reduced from 20'to 10', and 4) require an 0& M contract for the Zabel outlet tee filter and the UV light. Motion seconded by Brian Baumgaertel. VOTE: Unanimous (2-0). 1