4.4 EAW Attachment - Laserfiche WebLink

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Page 43 Table 28. Construction Emissions - Off-Road Vehicles Vehicle Vehicle/ Day Hours, per vehicle Consumption Rate Engine Size (hp) Total Gallons Emission Factor CO2 CH4 N2O Loader/ Bulldozer 3 1500 0.05 gal/hour per hp-hr 125 28,125 10.21 kg CO2/gal 0.91 g CH4/gal 0.56 g N2O/gal Excavator 3 250 56,250 Skid Steer 2 50 7,500 Vehicle Metric Tons CO2eq Annual Emissions CO2 CH4 N2O Loader/Bulldozer 287.1563 0.7166 4.1738 292.0466 metric tons CO2eq Excavator 574.3125 1.4333 8.3475 584.0933 metric tons CO2eq Skid Steer 76.5750 0.1911 1.1130 77.8791 metric tons CO2eq Construction Phase Emissions (9 years) 8586.17 metric tons CO2eq Lifecycle Annualized Emissions (50 years) 171.72 metric tons CO2eq Operation Emission – Mobile Sources – Scope 1 Emissions are generated by gas station/retail employees commuting to work. Gas stations and retailers are often highly local employers, so it was assumed that employees travel approximately fifteen miles to work. The future tenant of the commercial space is not known at this time, so the number of employees commuting per day may not reflect future conditions. It was assumed that no more than twenty employees would be commuting per day. It was also assumed these employees would drive gasoline-powered, light-duty vehicles (Table 29). Additionally, it is assumed that the future retailers occupying the commercial space will receive a delivery at least three times a week, and the residential homes will have a delivery truck (school bus, waste hauler, postal service, etc.) stop at least once a day. Delivery trucks are estimated to travel twenty miles per day per vehicle (Table 29). To estimate traffic emissions, it was assumed there will be two vehicles per household. According to the Federal Highway Administration, in 2022, the average annual mile traveled per vehicle was 10,847 (51). It was also assumed that future residents would drive gasoline-powered, light-duty vehicles (Table 29).