2024-053 - Final Supplemental for The Related Bristol Specific Plan Project

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acoustical study shall be submitted to the City's Planning and Building Agency to demonstrate that all residential units would meet the City's 65 dBA exterior noise standard and 45 dBA interior noise standard to the satisfaction of the Planning and Building Agency Executive Director. This complies with the applicable sections of the California Building Code (Title 24 of the California Code of Regulations). The necessary noise reductions may be achieved by implementing noise control measures at the receiver locations. The required noise attenuation measures shall be incorporated into the applicable building plans and specifications. Mitigation Measures: GPU FEiR IViIIU''l ICI-1: Construction contractors shall implement the following measures for construction activities conducted in the City of Santa Ana. Construction plans submitted to the City shall identify these measures on demolition, grading, and construction plans submitted to the City: The City of Santa Ana Planning and Building Agency shall verify that grading, demolition, and/or construction plans submitted to the City include these notations prior to issuance of demolition, grading and/or building permits. • Construction activity is limited to the hours: Between 7:00 a.m. to 8:00 p.m. Monday through Saturday, as prescribed in Municipal Code Section 18-314(e). Construction is prohibited on Sundays. • During the entire active construction period, equipment and trucks used for project construction shall use the best -available noise control techniques (e.g., improved mufflers, equipment re -design, use of intake silencers, ducts, engine enclosures, and acoustically attenuating shields or shrouds), wherever feasible. • Impact tools (e.g., jack hammers and hoe rams) shall be hydraulically or electrically powered wherever possible. where the use of pneumatic tools is unavoidable, an exhaust muffler on the compressed air exhaust shall be used along with external noise jackets on the tools. • Stationary equipment such as generators and air compressors shall be located as far as feasible from nearby noise -sensitive uses. • Stockpiling shall be located as far as feasible from nearby noise -sensitive receptors. • Construction traffic shall be limited to approved haul routes established by the City Public Works Agency. Exceptions to approved routes must be granted by the Public Works Agency before any modification to approved haul routes. • At least 10 days prior to the start of construction activities, a sign shall be posted at the entrance(s) to the job site, clearly visible to the public, that includes permitted construction days and hours, as well as the telephone numbers of the City's and contractor's authorized representatives that are assigned to respond in the event of a noise or vibration complaint. If the authorized contractor's representative receives a complaint, he,/she shall investigate, take appropriate corrective action, and report the action to the City. • Signs shall be posted at the job site entrance(s), within the onsite construction zones, and along queueing lanes (if any) to reinforce the prohibition of unnecessary engine idling. All other equipment shall be turned off if not in use for more than 5 minutes.