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are grown and harvested. Trimark plans to cease agricultural operations on a phased basis in the immediate vicinity of the proposed project. On-going irrigation within the proposed project and on lands west of the proposed project would be discontinued as the proposed project develops. In order to buffer ongoing farming operations from urban development, Trimark would establish a minimum 100-foot setback between the ultimate buildout boundary of the proposed project and the ongoing agricultural operations to the north, west, and south. In some cases, the setback may be over 200 feet and sometimes as great as 1,000 feet(see Figure 8). For lands where agricultural operations are ceased, Trimark proposes to plant the fallow areas with a low- maintenance groundcover, such as alfalfa, in order to minimize dust impacts to future residents and to create a natural barrier between farm operations and development. In addition to establishing a setback buffer, two other edge treatments would be implemented as part of the neighborhood improvements. The first edge treatment would occur as part of Arterial roadway construction. This activity consists of the installation of roadway landscaping and trees within the roadway corridor. These installations would occur on a phased basis with development of the proposed project. However, at buildout of the neighborhood, the proposed project would include, at a minimum, the installation of trees, shrubs and groundcover within all of the Arterial road medians and the inboard edge of streetscapes adjacent to development. The second edge treatment, the Community East Edge along Mountain House Parkway, as described in the Master Plan, would be installed on a phased basis as both construction of Mountain House Parkway and the adjacent private development along the roadway occurs. This edge treatment would consist of west edge streetscape plantings consistent with the Master Plan and CSD Design Manual, as well as future installation of median and east edge plantings as part of ultimate development of Mountain House Parkway. 11. Agricultural Irrigation Facilities Several BBID and Trimark owned farm irrigation facilities traverse the proposed project. These include BBID irrigation canals and drainage conveyance pipelines, and Trimark owned distribution pipes and ditches, as well as surface runoff tail water ditches. In addition, two subsurface pipes traverse the proposed project along Mountain House Parkway. These pipes, owned and operated by BBID convey both subsurface ground water collected beneath the proposed project site and adjacent parcels, and tail water runoff from the surface application of irrigation water on fields. Irrigation service to the proposed project would be terminated back to where the BBID canal crosses Mountain House Creek. Pipes from the new terminus would be extended beneath the creek to continue service to the agricultural fields north of the proposed project. Existing BBID subsurface pipes would be intercepted along the south of the proposed project, where the waters from both the ground water and tail water pipes would be connected to, and discharged into, the proposed storm water pipes to be constructed within Mountain House Parkway. Existing groundwater conveyance pipes located north of the proposed project along Byron Road would be left intact to continue subsurface drainage for farm fields along Byron Road. 12. Noise To reduce outdoor noise levels to 60 dB Ldn within the proposed project, as required by the Master Plan for residential areas, soundwalls at the locations and the heights shown in Figure 9 are proposed to be built. Soundwalls at these locations and heights include the following: A 6-foot soundwall along the south side of Mountain House Boulevard from De Anza Boulevard to the alley -12-