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F I RSTCAR B O N Proposal _>ULU1luf`I,) the appendices. Where possible,the modeling data from the previous GHG Emissions Due Diligence Memo for this project will be utilized to support these analyses. If the modeling data from the GHG Emissions Due Diligence Memo is sufficient to support this analysis,the emissions results therein will be incorporated into the Air Quality, GHG Emissions, and Energy Analyses.To perform these analyses,the following tasks are required. Air Quality Analysis FCS will prepare an Air Quality Analysis consistent with the requirements of the State CEQA Guidelines and Bay Area Air Quality Management District(BAAQMD)to support the IS/MND.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 the BAAQMD'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 (CaIEEMod). 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 the BAAQMD, California Air Resources Board (ARB), and/or US Environmental Protection Agency(EPA). Where possible,the modeling data from the previous GHG Emissions Due Diligence Memo for this project will be utilized to support this analysis. Health Risk Assessment The BAAQMD suggests impacts associated with toxic air contaminant(TAC) exposure should be addressed on a case-by-case basis,taking into consideration the specific construction-related characteristics of each project and proximity of sensitive receptors to sources of TACs. Based on the proximity of sensitive receptors(multi-family residences located within 200 feet of the project site to the south and southwest across Stoneridge Drive and within 160 feet of the site to the east across Stoneridge Mall Road), FCS recommends performing an HRA to evaluate potential construction-related TAC impacts. The major TAC that affects health impacts in the air is diesel particulate matter(DPM). DPM from the operation of diesel trucks and heavy construction equipment has been identified by the ARB as a carcinogen that can result in long-term health impacts.The proposed project has the potential to generate substantial DPM emissions during construction that would expose nearby sensitive receptors to elevated levels of TACs.The following tasks will be required for the HRA: NORTH AMERICA I EUROPE I AFRICA I AUSTRALIA I ASIA FIRSTCARBONSOLUTIONS.COM 3