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FIRSTCARBON Proposal SOLUTIONS FCS INTERNATIONAL,INC. Task 3: Technical Analyses Subtask 3.1: Air Quality, Greenhouse Gas Emissions, and Energy Analysis FCS will prepare an air quality,greenhouse gas (GHG)emissions,and energy analysis to evaluate project- related construction and operational activities.The analysis will be wholly contained in the appropriate sections of the IS/MND with any relevant supporting technical data appended to the document. Air Quality Analysis FCS will prepare an air quality analysis consistent with the requirements of the State CEQA Guidelines and South Coast Air Quality Management District(SCAQMD)to support the CEQA document.The proposed project would include construction and operational activities that would generate ozone precursor and criteria air pollutant emissions. FCS will use methodologies and guidance from SCAQMD's CEQA Air Quality Guidelines to model and evaluate the project's air quality impacts. Short-term construction emissions will be quantified using the latest version of the California Emissions Estimator Model (CalEEMod).The modeling will incorporate the type and size of the proposed uses, construction phasing schedule,and other construction data (duration of construction,area of land to be disturbed/graded,etc.) Long-term(i.e.,operational) regional criteria air pollutant and precursor estimates will include emissions from the proposed project's area,stationary,and mobile sources. Mobile-source emissions will be based, in part,on the transportation analysis to be prepared for this project.Stationary sources,such as emergency generators,if part of the proposed project,will be quantified using appropriate emission factors and methodologies from SCAQMD,California Air Resources Board (ARB), and/or US Environmental Protection Agency(EPA). Based on the anticipated level of construction activities,a qualitative analysis will be performed to demonstrate that project construction emissions would not exceed health risk thresholds as measured at the nearest sensitive receptor.Therefore, FCS assumes that a quantitative dispersion modeling HRA will not be warranted to identify and quantify the potential construction and/or cumulative health risks. However, if specifically requested by the City or if in the process of evaluating operational air quality emissions it is determined that an HRA is necessary, it would be accomplished as an additional service not included in this Scope of Work. Greenhouse Gas Emissions Analysis FCS will quantify the proposed project's construction and operational GHG emissions using assumptions and methodologies consistent with those used in the air quality analysis. Estimated GHG emissions will be evaluated against appropriate cumulative significance thresholds established in the SCAQMD CEQA Guidelines.The SCAQMD quantitative thresholds of significance will be used to determine if the project's generation of GHG emissions, based on its mass emissions or GHG efficiency(GHG emissions per service population where service population equals the sum of residents and employees), is considered a significant impact. NORTH AMERICA I EUROPE I AFRICA I AUSTRALIA I ASIA 3 FIRSTCARBONSOLUTIONS.COM