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Notes-Fugitive Dust Emission Calculations <br /> (1)Wind erosion emission factor for active construction area is based on "Improvement of Specific Emission Factors(BACM Project No. 1), <br /> Final Report", prepared for South Coast AQMD by Midwest Research Institute, March 1996. <br /> (2) Material unloading emission factors are based on AP-42, Section 13.2.4, 11/06. <br /> (Based on average annual wind speed recorded onsite and default soil moisture contents.) <br /> (3)Trenching emission factor is based on AP-42,Table 11.9-2(dragline operations), 1/95. <br /> (Based on default soil moisture content.) <br /> (4) Unpaved surface travel emission factors for water trucks, loaders,dump trucks,forklifts,delivery trucks, <br /> are based on AP-42, Section 13.2.2, 11/06. <br /> (Based on default soil silt content.) <br /> (5) Dust control efficiency for unpaved road travel and active excavation area is based on"Control of Open Fugitive Dust Sources", U.S. EPA, 9/88. <br /> (Based on default evaporation rate shown in EPA document, Figure 3-2, 9/88, and typical water application rate shown in EPA document, page 3-23, 9/88.) <br />