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<br />necessary for enjoyment. The nearest sensitive receivers <br />are residential condominium uses located 61 feet to the <br />south of project site across a parking lot of the MacMain <br />Plaza. Currently, a six feet masonry block wall separates <br />the project site from the parking lot and another 6 feet <br />wall separates the parking lot from the condominiums. <br /> <br />Noise Monitoring <br /> <br />Noise monitoring was conducted on February 27, 2005 <br />(Sunday) during the hours for which the automated car wash <br />would operate, which is 7 AM to 9 PM. Sunday was chosen <br />for measurements because this day would be expected to have <br />the lowest traffic noise and hence this would be the day <br />that any increases in noise from the project would be most <br />noticeable. Noise measurements were conducted in the <br />MacMain parking lot between the project site and the <br />condominiums to the south. The monitoring location is <br />described below and shown in Exhibit 3; <br /> <br />Time Leq Lmax Lmin L(2) L (8) L(25) L(50) <br />7:00 AM 57 74 47 64 60 56 54 <br />8:00 AM 56 76 45 62 59 56 53 <br />9:00 AM 58 73 46 67 61 58 56 <br />10:00 AM 65 73 54 68 67 66 65 <br />11:00 AM 66 76 63 68 67 66 66 <br />12:00 PM 64 81 51 67 66 65 64 <br />1:00 PM 63 85 50 71 64 62 60 <br />2:00 PM 62 78 55 68 64 62 60 <br />4:00 PM 64 71 59 68 66 64 63 <br /> <br />At the MacMain Parking Lot noise levels were relatively low <br />for being in proximity of MacArthur Boulevard and Main <br />Street. These low noise levels are due to the distance of <br />the sound level meter from MacArthur Boulevard and Main <br />Street as well as the presence of a six feet wall, which <br />provides noise attenuation for both streets. The noise <br />levels are very low in the early morning hours, increase in <br />the afternoon and decrease in the evening. Ambient noise <br />levels are higher at locations closer to Main Street or <br />MacArthur Boulevard which are the primary sources of noise <br />proximate to the project site. Table N-4 identifies the <br />monitored ambient noise levels. The noise measurements <br />demonstrate that the ambient noise level is lower than the <br />City's exterior noise standards for various hours of the <br />day. <br />Table N-4 <br />Morning Peak Hour - Ambient Noise Monitoring Summary (dBA) <br /> <br />24 <br /> <br />31A-55 <br />27 of 85 <br />