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S�� Technical Consultation,Data Analysis and <br /> Litigation Support for the Environment <br /> 2656 2911 Street,Suite 201 <br /> Santa Monica,CA 90405 <br /> Matt Hagemann, P.G,C.Hg. <br /> (949)887-9013 <br /> mhagemann@swape.com <br /> Paul E. Rosenfeld, PhD <br /> (310)795-2335 <br /> prosenfeld@swape.com <br /> March 8, 2021 <br /> Mitchell M.Tsai <br /> 155 South El Molino, Suite 104 <br /> Pasadena, CA 91101 <br /> Subject: Local Hire Requirements and Considerations for Greenhouse Gas Modeling <br /> Dear Mr. Tsai, <br /> Soil Water Air Protection Enterprise ("SWAPE") is pleased to provide the following draft technical report <br /> explaining the significance of worker trips required for construction of land use development projects with <br /> respect to the estimation of greenhouse gas ("GHG") emissions.The report will also discuss the potential for <br /> local hire requirements to reduce the length of worker trips, and consequently, reduced or mitigate the <br /> potential GHG impacts. <br /> Worker Trips and Greenhouse Gas Calculations <br /> The California Emissions Estimator Model ("CaIEEMod") is a "statewide land use emissions computer model <br /> designed to provide a uniform platform for government agencies, land use planners, and environmental <br /> professionals to quantify potential criteria pollutant and greenhouse gas (GHG) emissions associated with both <br /> construction and operations from a variety of land use projects."'CaIEEMod quantifies construction-related <br /> emissions associated with land use projects resulting from off-road construction equipment; on-road mobile <br /> equipment associated with workers, vendors, and hauling; fugitive dust associated with grading, demolition, <br /> truck loading, and on-road vehicles traveling along paved and unpaved roads; and architectural coating <br /> activities; and paving.' <br /> The number, length, and vehicle class of worker trips are utilized by CaIEEMod to calculate emissions associated <br /> with the on-road vehicle trips required to transport workers to and from the Project site during construction.' <br /> 1"California Emissions Estimator Model."CAPCOA,2017, available at:http://www.agmd.gov/caleemod/home. <br /> '"California Emissions Estimator Model."CAPCOA,2017, available at:http://www.agmd.gov/caleemod/home. <br /> s"CaIEEMod User's Guide."CAPCOA, November 2017, available at:http://www.agmd.gov/docs/default- <br /> source/caleemod/01 user-39-s-guide2016-3-2 15november2017.pdf?sfvrsn=4, p. 34. <br /> 1 <br />