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Planning Contransion Minutes DRAFT January 17, 2008 Page 2 Debbie Pedro confirmed that the project had been scheduled for a Fast Track hearing because it had conformed to all of the zoning requirements. Neighbor concerns raised at the public hearing had caused the project to be forwarded to the Planning Commission. Cyrus Kianpour, Consultant Engineer, stated that the project met all the Town's engineering standards. He explained that the Town's requirement for any proposed development project was to maintain the amount of drainage runoff from the site to pre -development conditions. The difference between the pre -development and the post development runoff must be detained in a system and be released over a period of time. The project's drainage system was designed to be self draining. It exceeds the storage requirement and the piping system had been moved up the slope to give the system the ability to drain itself in 24 hours to prepare for the next storm. The 12 inch culvert under the driveway matched the size of other culverts downstream. Chairman Carey asked what the distance was from the new buildings to the neighboring Kirkpatrick and Jambulingam properties. Debbie answered that the closest point to the Kirkpatrick's property was 38 feet from. the corner of the new garage and 33 feet to the Jambulingam's property. Commissioner Cottrell asked staff to comment on possible ambient noise changes for the neighborhood and sound walls that had been removed from the plans. Debbie explained that per the recently updated General Plan, sound walls were discouraged. The applicant had proposed a 6 foot block wall on the corner of the property. The wall met all the fence requirements and is not considered a sound wall. The professional acoustic engineer hired by the applicant reported that there would be a negligible increase in the ambient noise after construction. Manish Gupta, applicant, explained that meetings had been held with the neighbors to help clarify their key concerns and listen to their suggestions for solutions. The resulting proposed options were discussed with the Town planning and engineering staff. In response to noise concerns, Mei Wu Acoustics, a firm with expertise in acoustics and sound, had been hired to study the levels of proposed noise from the property. The new drainage system had been designed to capture the increased run-off from the property and restrict it to pre -development amounts. He stated they had increased the retention capacity to 1,890 cubic feet from 945 cubic feet and created a self draining system. The proposed driveway had been designed with a slope of 2.5 percent. The sewer mainlines had been designed to accommodate neighbors on the other side of Purissima Road who wanted to hook-up. Six neighbors had shown interest in joining the new sewer line. T -joints will be provided at time of construction for connection at that time or will be installed for connection at a later time. There was neighbor concern over views and the bulk of the house. Relocating the house was requested by one of the neighbors and had been considered, but then a different neighbor asked that the house remain in the original location. Commissioner Harpootlian asked what distance had been considered for relocation of the house