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MOUNTAIN HOUSE NEIGHBORHOOD'F"PROJECT INITIAL STUDY project site where high winds that normally blow from the west amplify dust generation. Complaints to the SJVUAPCD could increase due to such dust emissions. However, the County has required notification regarding nearby farming activities as discussed below. As stated in the Master Plan(p. 3-21): "Final Map recordation for residential development shall require recording notification on the face of each parcel's Deed of the County's Right-to-Farm Ordinance and notification of any specific, adjacent, unique agricultural uses." The Master Plan also states that"All buyers of residential areas adjacent to existing agricultural operations shall be notified of the County's Right-to-Farm Ordinance. Additionally, buyers shall be notified of unique agricultural uses or operations(such as dairy operation,manure spreading, etc.) which may have an impact on adjacent residential uses." Typical crops in the area include alfalfa, beans, and corn. Lands to the west of the project site,just west of the proposed Central Parkway, are proposed to be set aside as a community buffer and to be planted with a fallow crop such as alfalfa to minimize dust generation(see discussion in Section B above under "Agricultural Resources"). Landscaping plans along Central Parkway include a row of oaks(Quercus palustris and Quercus virginiana)on both sides of the road, with a scattering of oaks in the central median strips of Central Parkway where the median is of an adequate width. While the Quercus palustris is deciduous and would not reduce dust emissions during the winter months, the applicant's proposal for a community buffer of no less than 100 feet in width would be adequate to minimize dust for on-site residents. The proposed agricultural buffer(see Figure 4)varies in width from 100 feet to 1,600 feet. Residences at the east side of the project would be separated from agricultural operations by commercial/industrial uses and Mountain House Parkway. The applicant has proposed tree plantings along Mountain House Parkway which would help to reduce dust emissions from agricultural operations. With the appropriate buffer and landscape treatments described above, the project impact would be less- than-significant. Condition of Approval AIR-6: Plantings along the length of roadway improvements for Mountain House Parkway and Central Parkway shall occur at the time that roadway improvements are constructed. These trees shall be no smaller than 10-gallon containers at the time of planting. To reduce wind-related dust, these trees shall be planted so that the canopies are close together upon maturity. e) Create objectionable odors affecting a substantial number of people? Sources of odors affecting the project site would be a planned sewage treatment plant and existing dairy operations. Residents and employees at the project site would not be exposed to objectionable odors from the planned sewage treatment plant since it would be located approximately one mile from the nearest project developments. This is an adequate buffer to reduce frequent occurrence of any substantial odors. In addition, the Initial Study for the wastewater plant(Jones& Stokes, 1994) specifically addressed requirements of the Regional Water Quality Control Board to minimize odors. Existing dairy operations located south of the proposed development would be a source of odors affecting the residences throughout the entire site. These odors are expected only on occasion, since the typical wind flow pattern of the area would not transport these odors on to the site. However, under stable atmospheric conditions and with a southerly wind component in place, odors would be noticeable and may be considered objectionable by some future residences. This is a potentially significant impact that would be temporary until this land use is replaced with alternative land uses identified in the Master Plan. The dairy operations are also currently under investigation for violations related to waste discharge and odor nuisances. With buildout of the new community, these dairy operations would cease. C:VoessiCwrrnAL MUMMALINMA SMY-PARn.00C(7/20M) 79 VG. AIR QUALITY