14 ATTACHMENT 04 - Laserfiche WebLink

FIGURE 4 Noise Levels Calculated at Various Distances Along the Property Line -I,—� t 1 55{4 dBA , 51: dBA fl ...c.) ;fit f.. 1 ' .>a fl ',� 105 feet J 80ifeet °\ /° � . , Mon q I — (......... ,Ito 2:, IA I \ 1 u .i. T FrtEO 4 Y-- _','' _' .cans, i1tia .et 55.7 dBA irl all 1 s * 1. ,,EI y UIOR' NI; r CLIMAX C461.344'WR A $ r 1 y 0 01 f3".- i d ee l' �, �r o71r;41 do a dBA �. �� '' T 14 1':*IA_V 1. Nz 90f_'- ��c dar� Q .-Via' .T, ee 8A -i 55.8 dBA '87.7"52.7 dBA 70.8 dB Mitigation Measure: Construction of a fence structure capable of reducing noise levels at the southern property line by 5 to 6 dBA. The height of this fence would be approximately 8 to 10 feet tall and would be located in the strip of lawn outside the boundary of the exit driveway. While this project does not meet the conditions for the exception established in the Municipal Code for commercial property along the property plane, special circumstances for the 7-Eleven carwash project could be considered. The south and southeast property lines where the levels exceed the noise regulation are adjacent to parking spaces used for other commercial/retail use. Parking lots are not considered noise-sensitive. Furthermore, the noise generated from vehicles driving, stopping, and starting in a parking lot would be a source of noise. In fact, LT-2 was located along the southeastern border of the proposed carwash property, and during the daytime hours on weekdays and weekends, the existing noise environment resulted in Lmax levels that were 74 dBA, which exceed the 70 dBA limit. If the existing noise environment already exceeds the limit and there are no expected changes to the surrounding land use, the City could write a special case exception for the proposed carwash. Page 16