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Source PM,.. PM,., I CO I NO. VOC I SO, I CO, FK, I Nz0 <br /> 1.1 million tpy <br /> Mine Ventilation N/A N/A N/A N/A N/A N/A N/A 880 N/A <br /> (VAM)1 <br /> Misc. Mobile Equip. 0.68 0.68 8.82 18.11 1.16 0.23 1,782 0.09 0.00 <br /> Underground Mining 2.07 2.01 3.17 12.20 14.49 0.21 915 0.05 0.02 <br /> Equipment(mobile) <br /> Surface Mining <br /> 0.49 0.47 0.60 3.17 6.77 0.11 494 0.02 0.02 <br /> Equipment(mobile) <br /> Totals 3.24 3.17 12.58 33.48 22.42 0.54 3,190 880 0.04 <br /> 1.3 million tpy <br /> Mine Ventilation N/A N/A N/A N/A N/A N/A N/A 1040 N/A <br /> (VAM)1 <br /> Misc. Mobile Equip. 0.81 0.81 10.42 21.41 1.37 0.27 2,105 0.10 0.00 <br /> Underground Mining 2.44 2.38 3.74 14.42 17.12 0.25 1,082 0.06 0.02 <br /> Equipment(mobile) <br /> Surface Mining <br /> Equipment(mobile) 0.58 0.56 0.70 3.74 8.00 0.12 583 0.02 0.02 <br /> Totals 3.83 3.74 14.87 39.56 26.49 0.64 3,770 1,041 0.04 <br /> 1 The VAM is hardwired;therefore,there are no direct emissions from the VAM other than the CMM. <br /> 2.2.2.2 Low Cover Crossing <br /> A low cover crossing (LCC) is to be constructed as part of the Proposed Action,which is currently located <br /> within the existing OSMRE permit area. Refer to the EA for further details regarding the crossing <br /> description and location. The following outlines potential air quality emissions associated with the <br /> construction of the crossing. <br /> Construction emissions consist of four constituents, which are: on-road vehicle exhaust, off-road vehicle <br /> exhaust, fugitive dust from commuting traffic, and general construction. Both vehicle exhaust <br /> components are derived the EPA mobile source model, MOVES. The former EPA NONROAD has been <br /> incorporated into MOVES to account for all construction tailpipe emissions.Table 2.2-11 provides all the <br /> anticipated construction vehicles to be utilized. In association with the vehicles, there is expected to be <br /> three commuter vehicles each work day traveling 129 miles (207.6 km). The total disturbed area is <br /> 20 acres and the total excavated material is 248,888 cubic yards. Lastly, fugitive dust control would use <br /> water and magnesium chloride as a chemical suppressant. The 2015 Utah Department of Air Quality <br /> Guidelines suggest that use of suppressant and watering equates to 85 percent control of fugitive dust <br /> (UDAQ 2015). <br /> Dunn Ranch Area LBA and Mining Plan Modification 19 <br /> Technical Resources Report <br />