RES 211231 Exhibit A - Laserfiche WebLink

City of Pleasanton–10x Genomics Project Environmental Checklist and Initial Study/Mitigated Negative Declaration Environmental Evaluation FirstCarbon Solutions 33 Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480024/ISMND/wp/21480024 10x Genomics Project Full Screencheck ISMND.docx Construction Air Pollutant Emissions: ROG, NOX, PM10, and PM2.5 California Emissions Estimator Model (CalEEMod), Version 2016.3.2, was used to estimate the proposed project’s construction emissions. CalEEMod provides a consistent platform for estimating construction and operational emissions from various 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 impact. As presented in Table 3, construction of the proposed project is tentatively expected to start in September 2021 and conclude in March 2023. The construction schedule displayed in Table 3 represents a construction schedule that was updated on March 15, 2021, and differs from that utilized in the emissions modeling in Appendix A. The emissions modeling contained in Appendix A reflects a construction schedule from January 2021 through July 2022, as provided by the project Applicant. 17 While the construction schedule provided in Table 3 represents a later schedule than that utilized in the emissions modeling supporting this analysis, the earlier schedule utilized in the emissions modeling represents a conservative assessment of emissions from project construction. By assuming an earlier operational year, the construction emission estimates contained herein present a conservative assessment as fuel efficiency with construction fleets generally improves over time as new equipment gradually replaces older equipment. As shown in Table 3, in each project phase, architectural coating and paving activities would start concurrently, and architectural coating activities were anticipated to conclude concurrently with building construction activities. Table 3: Project Construction Schedule Phase Phase Start Date Phase End Date Working Days per Week1 Total Number of Working Days Site Preparation 9/16/2021 12/01/2021 5 54 Grading 02/01/2022 04/01/2022 5 44 Building Construction 04/01/2022 03/01/2023 5 239 Paving 06/01/2022 09/14/2023 5 76 Architectural Coating 06/01/2022 03/01/2023 5 195 Notes: 1 Working days per week is assumed to be 5 in the model. The construction schedule displayed above reflects later dates than those provided in the emissions modeling (Appendix A); however, the total number of working days for each construction activity and the occurrence of overlapping activities match those provided by the Project Applicant. The construction schedule presented here represents the anticipated construction schedule for the proposed project as updated by City staff on March 15, 2021. Source: Terrasset. 2020, 2021. 10x Genomics, 1701 Springdale Avenue Redevelopment – Request for Information. Dated October 22, 2020. Revised January 6, 2021. 17 Terrasset. 2020, 2021. 10x Genomics, 1701 Springdale Avenue Redevelopment – Request for Information. Dated October 22, 2020. Revised January 6, 2021.