2019-10-08_PERMIT FILE - M2019054

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Uinta Basin Sand,LLC OTR Unpaved Haul Roads(Pit to Permit Boundary) OTR Haul Road Uncontrolled Controlled Pollutant Lbs/hr Tonstyr Lbs/hr Tonslyr Total Particulate 87.70 273.61 21.92 68.40 PM,0 24.17 75,41 6.04 18.85 PM" 2.42 7.54 0.60 1.89 PM= (k((s/12)^0.7)((W/3)^0.45)'((365-P)/365) Pounds per VMT PM,a= (k'((s/12)10.9)((W/3)^0.45)'((365-P)1365) Pounds per VMT PMzs (k2((sll2)^0.9)((W/3)^0.45)'((365-P)/365) Pounds per VMT WHERE k= particle size factor 30 um from AP42 Table 1322-2 4,9 it'= particle size factor <10 um from AP-42Table 13.2.2-2 1 5 k2= particle size factor <2.5 um from AP-42 Table 13.2.2-2 0.15 $= silt content default mean value AP-42 page 13.2.2-2 7.1 AP42 Table 13.2.1-3 sand 8 gravel processing W= Mean vehicle weight(tons)[Empty trucks] 22 W= Mean vehicle weight(tons)[Loaded Trucks] 44 P= number of days in a year with at least 0.01 inches of precip 48.5 Ave from precip.Data of Massadona.Co for 2012-2017 OTR Haul Road Emission Factors Materials and Trucks Into Pit Out of Pit Unit ps per vehicle Pollutant (Empty Trucks (Loaded Trucks) mile traveled) Material:Coal PM= 7.139 9.803 LbsNMT Material(tons/year) 1.250,000 PM,o= 1.968 2.702 LbstVMT Empty Weight(tons) 21 5 PM"= 0.197 0.270 Lbs/VMT Loaded Weight(tons) 43.5 Weight of Sandstone Load 22 VMTNEAR(into pit)= 26,903 Mean Vehicle Weight(empty) 22 VMTNEAR(out of pit)= 26.903 Mean Vehicle Weight(loaded) 44 Tripslyear(empty into pit) 56,818 (F.Pwv dd—V—i.—i, ,awn:in most a,n�rv,mm� Length of road one way(it) 2,500 uM'—) Tri s/ear loaded out of it 56,818 Miles/Trip 0.5 Miles Trips/year(into loadout) 56,818 Trips/year(out of loadout) 56,818 Control Efficiency for roads 75%Mag Chloride HOURS OF OPERATION AP-42 Filth Edition Volume 1,Supplement E December 2003 Hours per day 24 Section 13 Miscellaneous Sources,1112006 Revision Days per week 5 13.2 Fugitive Dust Sources Weeks per year 52 13.2.2 Unpaved Roads Hours per year 6240 PTE Calcs.UBS_Mine Site-V2.xlsx 9/3/2019