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4 Environmental Analysis <br /> 4.3 Air Quality <br /> Equipment Daily <br /> Usage Daily Worker VendorTotal <br /> Construction Phase Equipment Type Quantity <br /> Forklifts 2 8 <br /> Gen-tie Line Pulling and Generator Sets 2 8 49 4 600 <br /> Stringing <br /> Tractors/Loaders/Backhoes 2 8 <br /> Testing and Off-highway Trucks 3 8 100 0 0 <br /> Commissioning <br /> Notes: <br /> Construction activities and equipment data were provided by the Applicant. <br /> 1/Number reflects daily one-way trips. <br /> 2/Number reflects total trips per phase. <br /> Emission Calculation Assumptions <br /> On-road Equipment Assumptions: <br /> oo Exhaust emissions for on-road equipment were calculated using CalEEMod for years <br /> 2024 and 2025 <br /> oo All on-road construction equipment emissions were determined using on-road emission <br /> factors; none were estimated using off-road emission factors (water trucks and dump <br /> trucks were modeled as on-road vehicles). <br /> oo Exhaust from the onsite diesel construction equipment. <br /> oo Exhaust from onsite water trucks used to control construction dust emissions. <br /> oo Exhaust from pickup trucks and diesel trucks used to transport workers and materials <br /> around the Project site. <br /> oo Exhaust from diesel trucks used to deliver equipment and materials. <br /> oo Exhaust from automobiles used by workers to commute to and from the Project site. <br /> oo Fugitive dust emissions were estimated for both paved roads and unpaved roads, where <br /> applicable. <br /> Off-road Equipment Assumptions <br /> oo Exhaust emissions were calculated using the CalEEMod for years 2024 and 2025. <br /> oo Fugitive dust emissions were estimated for grading activities and truck loading using <br /> CalEEMod. <br /> Construction Information and Assumptions <br /> Construction-related emissions are based on the following: <br /> oo The site total acreage inside the proposed fence line is approximately 32 acres. <br /> Griffith Energy Storage Project 4.3-19 Tetra Tech/SCH 2022120675 <br /> Draft Environmental Impact Report August 2023 <br />