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~~ <br />U <br />r <br />B. Controls: <br /> <br />1. Fifty percent (0.5) control of dust achieved by watering roads. <br />2. Average vehicle speed is controlled and which acts to reduce <br />the total amount of road dust. <br />Estimation of fugitive dust emission at the ore shipment pad. <br />Referring to the emission factor equations given in Figure 3..2-4 by the <br />n <br />lJ <br /> <br />Colorado APCD, 1977, for load-in, load-out, stockpile maintenance anti stockpile <br />wind erosion, the silt content term is zero due to the fact that the ore pile <br />consists of washed ore and wetted ore fines <br />Accordingly, the emission factor <br />equation goes to zero. <br />References for Section 3.0 <br />Water Effluent <br />Hazen Research, Inc., 1977. Spill Prevention and Containment Plan for <br />Control of Pollutant Discharge Streams at Schwartzwalder Mine. <br />U. S. Environmental Protection Agency, 1972. Impact of the Schwartzwalder <br />Mine on the Water Quality of Ralston Creek, Ralston Reservoir an~i <br />Upper Long Lake. Region VIII - Technical Investigations Branch. <br />Air Effluents <br />Colorado Air Pollution Control Division, 1977. Emission Factors for <br />Mining Operations. Colorado Department of Health. <br />U. S. Environmental Protection Agency, 1973. Environmental Anaylsis of <br />the Uranium Fuel Cycle - Part I Fuel Supply. Office of Radiation <br />Programs EPA-520/9-73-003-B. <br />3-8 <br />