3_Exhibit C_ADDENDUM ONLY - Laserfiche WebLink

City of Pleasanton—Stoneridge Mall Residential Project CEQA Checklist Section 15183 Checklist/15164 Addendum 66 FirstCarbon Solutions Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480017/Consistency Checklist/21480017 Stoneridge Mall Residential Project Checklist Addendum_Updated.docx dust control measures are implemented at the project site. With the implementation of Prior EIR MM 4.B-1a, short-term construction impacts associated with violating an air quality standard or contributing substantially to an existing or projected air quality violation would be less than significant for fugitive dust. Construction Air Pollutant Emissions: ROG, NOX, PM10, and PM2.5 The California Emissions Estimator Model (CalEEMod), Version 2020.4.0, was used to estimate the proposed project’s construction emissions. CalEEMod provides a consistent platform for estimating construction and operational emissions from a wide variety of land use projects and is the model recommended by the BAAQMD for estimating project emissions. Estimated construction emissions are compared with the applicable thresholds of significance established by the BAAQMD to assess ROG, NOX, exhaust PM10, and exhaust PM2.5 construction emissions to determine significance for this criterion. Construction of the proposed project is expected to start in June 2023 and conclude in October 2025. For the purposes of this analysis, construction of the proposed project was assumed to correspond to these dates. If the construction schedule moves to later years, construction emissions would likely decrease because of improvements in technology and more stringent regulatory requirements that would affect future construction equipment. The duration of construction activity and associated equipment represent a reasonable approximation of the expected construction fleet as required by CEQA Guidelines. The calculations of pollutant emissions from the construction equipment account for the type of equipment, horsepower, and load factors of the equipment, along with the duration of use. According to information provided by the project applicant, the construction of the proposed project would be built in one phase and the proposed project would be operational after the construction. As shown in Table 3, the proposed project would be constructed in a total of 610 workdays. For a more detailed description of the construction parameters used in estimating air pollutant emissions modeling, please refer to Appendix B. Daily average construction emissions are compared with the BAAQMD’s significance thresholds in Table 4 below. Table 3: Preliminary Construction Schedule Construction Activity Phase Start Date Phase End Date Working Days per Week Total Number of Working Days Demolition 6/19/2023 7/14/2023 5 20 Site Preparation 7/15/2023 7/28/2023 5 10 Grading 7/29/2023 8/25/2023 5 20 Building Construction 8/26/2023 4/4/2025 5 420 Paving 4/5/2025 5/2/2025 5 20 Architectural Coating 5/3/2025 10/17/2025 5 120