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Appendix "AIR" <br /> CLEMENTS QUARRY EIR <br /> AIR EMISSION CALCULATIONS <br /> A. UNPAVED MAUL ROADS <br /> Emission Factor Equation: <br /> E= k*(5.9)*(8/I2)*(S/30)*(W/3)^0.7*(w/4)".5*((150-p)/150) <br /> Where: E—emission factor(lb/Vehicle mile traveled, VMT) <br /> k = particle size multiplier <br /> s = silt content of road surface material <br /> S — mean vehicle speed <br /> W=mean vehicle weight <br /> w=mean number of wheels <br /> P = number of days with at least 0,0I inch of precipitation <br /> Source: Section 11.2.1 of EPA's AP-42(1988) <br /> Basis for Calculations: <br /> 1. 32 trips/day (round trip), per hauler Owo haulers) <br /> 2. Wght of unloaded trucks: 70 tons; loaded: 115 tns; mean wght= 92.5 Ions(W) <br /> 3. 8 wheels/truck(w) <br /> 4. 15 mph vehicle speed (S) <br /> 5. 1 mile/trip <br /> b. Silt content of roadway surface material: 4.8% (s) (AP-42) <br />