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7.1 MITIGATION MONITORING PROGRAM Noise Table 7.1 -continued Timing or Person/ Frequency Monitoring Agency of Impact Mitigation Measure Requirements Responsible' Monitoring= 4.16-2 Existing residences located 4.16-2 Outdoor use areas of existing residences that would be Review at SP stage. SJCCDD SP adjacent to existing roads in and impacted (i.e.. would experience an increase of 5 dB in the around the proposed Mountain L,) by project-generated traffic noise should be protected House New Town would be from excessive noise. At the Specific Plan stage, the County significantly impacted by project- should refine the traffic study and revise the acoustical generated traffic. analysis to identify potentially impacted residences (minimum noise level increases of 5 dB), and if feasible. offer mitigation measures to minimize the impacts. Mitigating impacts at individual residences could take the form of constructing sound walls along the roadways. soundproofing homes, or building barriers/fences around specific portions of yards to provide shielded outdoor spaces. Because of the nature of the development in the area. solutions would have to be tailored to each specific situation. 4.16-3 Proposed noise-sensitive land uses 4.16-3(a) Earth berms, sound walls, or other mitigation identified at Review at SP stage. SJCCDD G;124; SP adjacent to agricultural lands. the Specific Plan stage should be constructed where noise- could be significantly impacted by sensitive land uses would abut agricultural fields. agricultural machinery and Alternatively, a buffer zone between proposed noise-sensitive equipment noise. land uses and agricultural lands could be providedia�-te adoption of!I;@ Gener.;41 Plan AmeAdmaAl A 1.000-foot wide on-site buffer zone would reduce noise levels generated by agricultural machinery by approximately 20 dB. 4.16-4 Construction noise during the 17- 4.16-4(a) NoiseWing truGk Verification of SJCCDD PC and C year development period would lie compliance. a significant noise impact. Noise Impacts during construction can be mitigated by controlling the hours of construction. This may be appropriate In some situations and should be considered on a case-by-case basis as construction proceeds In the new community. 4.16-4(b) All construction equipment powered by internal combustion Verification of SJCCDD C engines should he properly muffled and maintained. "Ilene compliance. prudent selection of equipment, along with the use of proper mufllem. should limit construction-related noise generated by a particular piece of equipment to 85 dBA when measured at a distance of 50 feet from the piece of equipment operating at its noisiest mode.