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Analysis Noise Study Development Title Section 9-1025.9 lists the residential use type as a noise sensitive land use. A Noise Impact Study was conducted by The Acoustics & Vibration Group. As a result, exterior sound attenuation is required for this project to meet backyard sound level requirements of 65 dB for the homes on all lots. The noise study concluded that the following mitigation measures would be necessary in order to mitigate noise related impacts to less than significant levels. • A fourteen (14) foot sound wall is required along the western property line of Lot 7. • A sound wall with a minimum height of 13 feet, 4 inches, for the south 200 feet of the sound wall, tapering down to a minimum height of 11 feet, 4 inches, at the north end, is required along the western property line of Lot 1. • An 11-foot, 4-inch, sound wall is required along the southern and eastern property line of Lot B The Conditions of Approval include the sound wall requirements for this project. Interior sound levels will exceed 65 dB for Lots 1, 2, 7, and 8 for the upper story of multi-story homes. As a Condition of Approval, at time of development, if multi-story houses are proposed, the applicant shall provide proof that the second-story will meet the interior sound level requirement of 45 dB Demolition of Existing Structures There is an existing house, garage and shed on APN: 086-070-06. These structures cross over the proposed new lot lines. The structures will be demolished prior to the recordation of the Final Map. The demolition of the structures is included in the Conditions of Approval for this project. Morada Municipal Advisory Council Concerns The Community Development Department received a letter from the Morada Municipal Advisory Council on July 20, 2005 with the following comments: • "Community well should not be an afterthought': The project will be served by a public water system conforming to the requirements of the Environmental Health Department and the Department of Public Works (CSA 46 Morada). The system shall provide adequate domestic and fire water supply in conformance with the County Fire Warden and the local Fire District. A test well showing that the production well will meet all applicable standards is required prior to the approval of the improvement plan of any work within the site. • "Lot sizes are not large enough to properly sustain septic system": Pursuant to Development Title Section 9-1105.2[d][6], areas zoned Rural Residential with parcels one (1) acre or more in size will be considered suitable for septic tank usage if served by public water and storm drainage. The proposed subdivision will have public drainage, water, and on-site septic tanks. To ensure that San Joaquin County standards are met for the on-site septic systems, a Surface and Subsurface Contamination Report, Soil Suitability/Nitrate Loading Study, and percolation tests shall be submitted and approved. San Joaquin County PA-0500401\Ghana Community Development Page 3