1/21/2010 CONSERVATION COMMISSION Minutes

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i i I Motion made, seconded and unanimously carried to close and Issue. 7:09 Town of Mashpee NON -SE 3-260 sunset circle)— F e rade Roadway &Stormwater System (continued t 2/18/10), Applicable Resource Arew Bordering Vegetated Wetland Agent McManus states that Natural Heritage has not co mented yet and the Massachusetts Historical Society has cited this lot as once occupied by a tribal member in the early 1900's if not earlier) so they are requesting additional research is done before any disturbance to the lot. Motion made, imconded and unanimously carried for a continuance until /1811 @ 7:00 p.m. 7:1.2 Ron &Cheryl Bloom NOI —SE 43-2597 (176 Daniels Island Road) Dern / Rebuild uild cont'd from 1/07110) Applicable Resource a #rea: Land subject to Coastal storm Flow and buffer zone to saltmarsh Millie l: orselli from Falmouth ngineering.and ,Jen Malila from centerline Studios are representing the homeowners. Mr. Borselli explains that this project is a demolition and reconstruction of an older-home and within Land Subject to Coastal Storm Flow. The lot has been developed over time with the house, driveway and significant clearing of all the native vegetation between the wetland resources and the house. The proposed house is designed according to regulations of Mashpe 's Chapter 172By-law and substantial mitigation i proposed in accordance with mitigation calculations under the by-law. Mitigation will be 1160 square feet of native plantings. The new house includes a raised patio and stepping stone access. There is a walkout designed because the lot gen tly slopes from fr nt to back but it will have the necessary flood venting for the evert of high water during a storm, the water gill flood into and recede without being trapped within the structure. The first floor is elevated significantly above FEMA base flood elevations. The house is currently being served by a failed cesspool which is approximately 25-30' away from the salt marshes and will be required to be upgraded to a Title V septic system with a denitrifying sytem. The cesspool will be filled with sand and the pipe to the house will be removed. There will be some trees that need to be removed as a result of proposed construction, most of which are located in the front yard further from the salt marsh. The lot is heavily disturbed from previous landscaping and _ clearing activities; mostly comprised of overgrown lawn Ms. Mellila explains that the project requires 1660 sq ft. of mitigation comprised entirely of native plantings. They will be removing the grass on the waterside and replacing with plants and mulch and possibly creating a small lawn-area on the street side. They will be improving the grade to slant towards the driveway (currently slopes toward the water). The roof run off will be contained through a combination of dr well and/or drip strips Agent McManus recommended submission of specific plans showing the final layout system for roof/patio run off. Mr. Sweet comments on two Cedar trees and his concern of the work limit that runs close to ihern with the possibility of machinery damaging the root systems. Ms. lll'ialila says they will put semi-permanent snow fencing around therm for protection during construction. Agent McManus explains that there will be a precontruction walk thru as is standard procedure with all NOYfilings to make sure that the orders of Conditions are understood Motion made, seconded and unanimously carried to close and issue. Motion made, seconded and unanimously carried to adjourn the meeting at 8:10 pm. Respectfully submitted, Ca Kris Carpenter Administrative Secretary