10/09/2013 ZONING BOARD OF APPEALS Decision

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SMOLAK & VAUGHAN LIT August 30, 2013 unify the treatment of wastewater in a single system, improving both the level of treatment and uniform disposal of treated effluent from what presently exists to serve the entire Mashpee Village property. The selected system is known as an amphidrome system; while the system collection and disposal is largely subsurface, the treatment plant includes an accessory structure within proximity to the leaching trenches. The environmental permitting of such a treatment facility is obtained through the Mass DEP, which reviews and approves groundwater discharge permits pursuant to 314 CMR 5.00, as the system exceeds the Title 5 system limit of 10,000 gpd. An application to the Mass DEP was recently submitted on August 20, 2013. The centralized, underground amphidrome facility will be located at the end of Amos Circle, adjacent to the existing subsurface disposal system serving the Amos Circle lots. The treated effluent will be disposed via a subsurface infiltration system, adjacent to the treatment facility. As part of the upgraded septic system, an accessory structure (the "control building") will need to house the pumps and blowers associated therewith. The dimensions of the single-story accessory structure shall be finalized in the near term, and could be sized at 22'x 24,' yet depending on final drawings, the building may slightly increase to dimensions of 33'x 44'.2 The structure will be a single-story, 10'-12' in height with an 8/12 pitch roof, adding between 7'-11' to the overall height. As a frame of reference, the existing single family residences that are on Amos Circle, closest to the new proposed control building, measure approximately 25'x50' and appear to have the same pitched asphalt roof structure. Attached plans show the proposed building location, which is set back from the housing units,but will be constructed to blend into the existing architectural style of the residential development. Ongoing drafting of the plans for the proposed control building are being prepared and will timely be submitted to the Board prior to its August 25 public meeting. An overview memorandum of the unified collection system are detailed in the attached memorandum. B. Request for Minor Plan Change Approval Under Chapter 174-24(C)(9)(a). In accordance with Section 174-24(C)(9) of the Mashpee Bylaw, the Board is empowered to authorize minor changes to approved site plans which are subject to an existing special permit approval. The request made within seeks Board approval for the location of an accessory building necessary to the implementation of an upgrade to the septic collection and disposal for the residential development. Mashpee Village does not otherwise seek to alter the number, location or uses of the residential dwellings within the community. The accessory building associated with the improved wastewater infrastructure will not obstruct the views of any of the residents, nor will it decrease the amount of available lawn or open space for any lot or parcel within the development, as it is to be 2 Prior to the Zoning Board's September 25 public meeting,updated information as to the dimensions of the control building will be made available to the Board. fnnn P1 ,A...1 i