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activity on May 30—31, 2000, and July 1, 2000 to acquire a better understanding of the <br /> noise levels acquired during noise generating activities and at some of the nearby <br /> receptors during those activities. <br /> The noise data collected was compared to the San Joaquin County Noise Element <br /> Standard and an assessment was made of the ability to meet that standard. In brief,the <br /> standard for day/night (7:00 a.m. to 10:00 p.m.) community noise level-is set at an hourly <br /> equivalency of 50dBA with a maximum of 70 dBA. A 5dBA reduction in the standard is <br /> applied to noise that is due primarily due to speech or music. In evaluating the data, the <br /> 5dBA reduction was included bringing the hourly equivalency to 45dBA and the <br /> maximum to 65dBA. The following sections describing the data results will be presented <br /> in two categories. The first assessment sections will present the results of the hourly <br /> equivalency levels related to the 45dBA criteria level. The second discussion of the <br /> results will present the 65dBA maximum level. <br /> 45dBA Hourly Equivalent Data Results <br /> After assessing the data from the M-27 it is evident that during the June 3, 2000 event <br /> using the 10-minute histogram for the percent time statistical distribution that the 45dBA <br /> level was exceeded for approximately 53.7% of the time. It should be noted that during <br /> the morning of the scheduled event the adjacent vineyard was being actively managed <br /> and that a tractor was in use during some of the morning hours beginning at <br /> approximately 6:30 a.m. The data during "normal"facilities activities and the scheduled <br /> event, as evidenced on the 10-minute histogram, indicates that a 45dBa hourly <br /> equivalency level was not obtained at any time. The hourly readings in dBA from 2:00 <br /> p.m. to 10:00 p.m. were 50, 51, 49, 56, 59, 49, 54, and 52. It is evident that the data <br /> reflects the use of farm vehicles and that traffic noise from the use of the gravel driveway <br /> contributed to some of the sound pressure levels recorded during other portions of the <br /> day. <br /> The background or"normal" data collected during Thursday June 15, 2000 (a non-event <br /> day)reflects similar percent noise statistical distributions, in that the 45dBA level was <br /> exceeded 39.2% of the time. It is considered similar due to the fact that no farming <br /> activity (i.e. use of a tractor) was encountered during this sampling event. During the <br /> hours of 2:00 p.m. and 10:00 p.m. the hourly reading in hourly equivalency dBA were 58, <br /> 55, 59, 58, 69, 46, 47, and 50. These hourly dBA figures are greater than the hourly dBA <br /> figures acquired during an event, which leads us to believe that efforts on the.June 3, <br /> 2000 occasion to attenuate the speech and music related pressure levels at the source <br /> were being implemented. <br /> In order to try to collect data that reflected the impact from the event by excluding the <br /> traffic noise that is accumulated from the use of the gravel driveway at the facilities, data <br /> was collected on July 1, 2000 starting at 7:00 p.m. and continuing until approximately <br /> 11:00 p.m. The 10-minute percent time statistical distribution histogram indicates that <br /> 2 <br />