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substantial increase in noise levels above ambient conditions. Therefore, impacts would remain <br /> significant and unavoidable. It should be noted that the identification of this program-level impact <br /> does not preclude the finding of less-than-significant impacts for subsequent projects analyzed at <br /> the project level. <br /> Mitigation Measures <br /> N-1 Construction contractors shall implement the following measures for construction <br /> activities conducted in the City of Santa Ana. Construction plans submitted to the City <br /> shall identify these measures on demolition, grading, and construction plans submitted <br /> to the City: The City of Santa Ana Planning and Building Agency shall verify that <br /> grading, demolition, and/or construction plans submitted to the City include these <br /> notations prior to issuance of demolition, grading, and/or building permits. <br /> • Construction activity is limited to the hours: Between 7 AM to 8 PM Monday through <br /> Saturday, as prescribed in Municipal Code Section 18-314(e). Construction is <br /> prohibited on Sundays. <br /> • During the entire active construction period, equipment and trucks used for project <br /> construction shall use the best-available noise control techniques (e.g., improved <br /> mufflers, equipment re-design, use of intake silencers, ducts, engine enclosures, <br /> and acoustically attenuating shields or shrouds), wherever feasible. <br /> • Impact tools (e.g.,jack hammers and hoe rams) shall be hydraulically or electrically <br /> powered wherever possible. Where the use of pneumatic tools is unavoidable, an <br /> exhaust muffler on the compressed air exhaust shall be used along with external <br /> noise jackets on the tools. <br /> • Stationary equipment, such as generators and air compressors shall be located as <br /> far as feasible from nearby noise-sensitive uses. <br /> • Stockpiling shall be located as far as feasible from nearby noise-sensitive <br /> receptors. <br /> • Construction traffic shall be limited, to the extent feasible, to approved haul routes <br /> established by the City Planning and Building Agency. <br /> • At least 10 days prior to the start of construction activities, a sign shall be posted <br /> at the entrance(s)to the job site, clearly visible to the public, that includes permitted <br /> construction days and hours, as well as the telephone numbers of the City's and <br /> contractor's authorized representatives that are assigned to respond in the event <br /> of a noise or vibration complaint. If the authorized contractor's representative <br /> receives a complaint, he/she shall investigate, take appropriate corrective action, <br /> and report the action to the City. <br /> • Signs shall be posted at the job site entrance(s), within the on-site construction <br /> zones, and along queueing lanes (if any) to reinforce the prohibition of <br /> Santa Ana General Plan Update <br /> CE 5T ac an Statement 32 — 72 2 <br /> Of ri ing onsiderations -49- 61 /Rer�0 2 1 <br />