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Administrative Draft Environmental Impact Report Gill Medical Center Project 4.8.3 Environmental Impacts and Mitigation Measures 4.8.3.1 Thresholds of Significance CEQA Guidelines Appendix G states that a project may have a significant effect on the environment if implementation would result in any of the following: Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation; or, Conflict with or obstruct a state or local plan for renewable energy or energy efficiency. 4.8.3.2 Methods of Analysis Levels of construction and operational related energy consumption estimated to be consumed by the Project include the number of kWh of electricity, therms of natural gas and gallons of gasoline. Modeling was based on Project specific information such as the estimated traffic trip generation rates from KD Anderson and Associates (2020) and Project site plans.The amount of total construction-related fuel used was estimated using ratios provided in the Climate Registry's General Reporting Protocol (2016) for the Voluntary Reporting Program, Version 2.1. Electricity and natural gas consumption estimates were calculated using the California Emissions Estimator Model (CalEEMod),version 2016.3.2. CalEEMod is a statewide land use computer model designed to quantify resources associated with both construction and operations from a variety of land use projects. Operational automotive fuel consumption has been calculated with EMFAC 2017. EMFAC 2017 is a mathematical model that was developed to calculate emission rates and rates of gasoline consumption from motor vehicles that operate on highways, freeways, and local roads in California. 4.8.3.3 Project Impacts and Mitigation Measures Impact 4.8-1: Wasteful or Inefficient Energy Use. Impact Determination: Less than significant Threshold: Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation? The impact analysis focuses on the four sources of energy that are relevant to the proposed Project: electricity, natural gas, the equipment-fuel necessary for Project construction, and the automotive fuel necessary for Project operations.Addressing energy impacts requires an agency to make a determination as to what constitutes a significant impact. There are no established thresholds of significance, statewide or locally, for what constitutes a wasteful, inefficient, and unnecessary consumption of energy for a proposed land use project. For the purpose of this analysis, the amount of electricity and natural gas estimated to be consumed by the Project is quantified and compared to that consumed by all non- residential land uses in San Joaquin County. Similarly, the amount of fuel necessary for Project construction and operations is calculated and compared to that consumed in San Joaquin County. Energy 4.8-7 October 2021