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The California". <br /> alifornia'Department of Health Services recommends the <br /> normally acceptable range for low-density residential uses 'as <br /> less than 60 dB, and the conditionally acceptable range as . 55-70 <br /> dB. It is demonstrated that the current operation does not ; <br /> create noise levels in excess of these recommended levels, and ' <br /> accordingly, it is concluded that noise will not cause a signifi- <br /> cant impact on the existing environment. <br /> Table 5.5.1 <br /> Site Location dBIA1-1 dB(A)-2 Comments <br /> 1 Nearest residence 32-37 33-42 Passing light <br /> aircraft = 40 i <br /> ' 2 Johnson Road 40-48 32-37 Cattle lowing in <br /> adjacent field <br /> -~, 3 Private residence 37-48 33-40 Birds in trees <br /> r <br /> 4 End of Brandt Road 67-70 Passing truck <br /> 33-39 Truck to plant <br /> 34-43 Engine at chicken farm audible <br /> i <br /> 5 Plant office 43-54 41-43 Idling trucks loading gravel <br /> Echo from building I <br /> 6 Stream crossing 51-53 Plant noise <br /> j at plant 53-55 With Loader <br /> 7 Pipeline crossing 42-48 Jet passing over i <br /> at road NE of plant 42-43 No jet <br /> i <br /> 8 1/2 mile NE 32-40 29-37 Distant jet, cattle <br /> 9 Center of plant 71-76 with conversation <br /> 10 Settling ponds 44-46 50' from water discharge <br /> 11 Cord, Brandt & 76-95 Passing traffic <br /> ? Clements Roads <br /> 12 Acampo Road & 27-32 Distinct birds ! <br /> Johnson Road Inactive private motocross track <br /> 13 Acampo Road & drive 29-37 26-34 <br /> 14 Acampo Road & 31-45 37-50 Cattle in field <br /> Cord Road 51-57 Ranch truck at gate <br /> r" <br /> 15 Cord Road & 30-38 360 degree reading <br /> Railroad track Noise from Hwy 26 <br /> Notes: dB(A)-1 is the reading taken with the directional microphone pointed in <br /> the direction of the existing operation. <br /> dB(A)-2 is the reading taken with the directional microphone pointed in <br /> a direction 180 decrees away from the existing operation. <br /> ' KRC Aggregate, Inc. <br /> - 7 - April 1, 1994 <br />