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URS The conclusions reached from the various data collected during normal activities, heavy activities including deliveries of material and daily farming activities indicate that during most sampling periods the background levels observed exceed the noise standard. Specifically, the CNEL standard of an equivalent hourly reading of 50dBA is not reliably met at most times during the 7:00 am. to 10:00 p.m. time period no matter what is taking place in the area. During working hour activities the CNEL 50dBA hourly equivalent is exceeded at the property line by approximately l OdBA; however, as stated above the "best case"ambient level between 10:00 p.m. and 7:00 a.m. on a low activity day is approximately 53dBA. Clearly, due to the proximity to State Route 99, the 50dBA CNEL hourly equivalent will be exceeded and should not be used as a criteria for assessment of compliance with the county noise element. 70dBA Maximum Level Results Reviewing the 1-minute histogram during the December 12, 2000 sampling event, which was a"normal' activity day, it is evident that the 70dBA maximum level was met or exceeded 0.62% or 10.4 minutes out of 1,678 minutes sampled. Upon analysis of this data it is apparent that of the 1,678 total minutes recorded the following breakdown of the readings occurred. The data indicates that nine of the readings were attributed to the set- up and take down of the sampling equipment, one reading was related to the arrival of the "hydroseeder" concurrent with movement of some equipment by a neighbor, and one reading was from a neighbors car and barking dog. Six readings were from unknown short-term sources. It is speculated that these data could be traffic-related noises due to the sporadic times that they occurred. These results are not considered statistically significant. Upon review of the 1-minute histogram data from January 15, 2001 (a"heavy" workday with a scheduled delivery)the 70dBA maximum level was exceeded 4.77% or 69.5 minutes out of 1,456 sampled minutes. The 1,456 total minutes analyzed resulted in the following analysis. Eight readings were related to the set-up, checking and take down of the equipment. Twenty-seven readings were related to farming activities associated with fumigation a nearby orchard, three readings were related to jets flying overhead, and one reading was connected to the neighbors quad runner. Readings associated with the site operation include four readings related to the "hydroseeder", eight readings were attributable to the arrival,positioning, unloading and departure of the "18-wheeler" and, and 23 readings were associated with the power washer being used within three feet of the meter. On this day, it is of particular interest to note that between the hours of 8:30 a.m. and I0:00a.m. the 10-minute histogram was impacted at greater than or equal to the 70dBA Noise Survey Report 4 Premier Environmental Services, Inc 01/31/01