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JPM <br />Acoustius l,loise Vibration <br />2.0 ANAtYStS <br />As advised, the HVAC tower is expected to operate during day time hours only. According to the <br />City of Santa Ana Noise Ordinance, included in APPENDIX - B, by the end of this report, maximum <br />allowable exterior noise limit is tAeq,lhr - 55 dB(A). <br />The HVAC tower operates continuously with a relatively steady noise level. Various background <br />noise events occurred during noise level measurements. <br />Measurements were conducted during daytime hours between 1pm and 6pm, on 71.25.2020. <br />During the measurements there were several background noise levels such as gardening operations by <br />neighbors, airplanes, helicopters, loud music, cars parking etc. The moments of lowest levels measured <br />are the values that indicate HVAC operation noise levels received at positions of interest. <br />4 <br />Email: contact@aco!sticalnoisevibration.com <br />Tel: (+1)213 909 5375 <br />3003 W. Olympic Blvd #106, LosAngeles, CA 90005