RES 211231 Exhibit A - Laserfiche WebLink

Environmental Checklist and City of Pleasanton–10x Genomics Project Environmental Evaluation Initial Study/Mitigated Negative Declaration 36 FirstCarbon Solutions Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480024/ISMND/wp/21480024 10x Genomics Project Full Screencheck ISMND.docx schedule originally provided by the project Applicant,18 represents a conservative assessment of emissions from vehicle traffic generated by project operation in its first year of operation. By assuming an earlier operational year, the mobile emission estimates contained herein present a conservative assessment as fuel efficiency with vehicle fleets generally improves over time as new vehicles gradually replace older vehicles. To provide a conservative estimate of emissions occurring from project operation in the earliest year of operation, the proposed project (all phases) is assumed to be fully operational in July 2022. While specific phases of the proposed project would be operational prior the full buildout date of July 2022, the transportation data which is used for this analysis is based on full buildout of the proposed project and cannot be used to determine vehicle trips generated during each project phase. Therefore, the proposed project’s operational emissions are based on full buildout starting in July 2022 and are presented in Table 5 and Table 6. According to the traffic volume data provided by the City of Pleasanton,19 the proposed project is expected to generate approximately 4,520 average daily vehicle trips at buildout, principally from employee passenger vehicles traveling to and from the project site.20 Under existing operations, the regional shopping center that occupies the project site generated approximately 840 average daily vehicle trips.21 Therefore, the operational emissions from the existing regional shopping center and parking lot were included in the analysis baseline to estimate the net increase in emissions from the proposed project. For detailed assumptions used to estimate emissions, see Appendix A. The estimated net daily emissions are presented in Table 5, while net annual emissions from project operations are presented in Table 6. Table 5: Maximum Daily Unmitigated Operational Emissions Emissions Source ROG NOX PM10 Total PM2.5 Total Pounds per Day Existing Emissions1 Area 4.13 0.00 0.00 0.00 Energy 0.01 0.10 0.01 0.01 Mobile 1.31 7.49 0.04 0.04 Stationary 0.00 0.00 0.00 0.00 Existing Total2 5.46 7.59 0.05 0.04 Proposed Project–Full Buildout Emissions1 Area 9.44 0.00 0.00 0.00 Energy 0.03 0.24 0.02 0.02 Mobile 6.65 8.69 0.16 0.14 Stationary 0.00 0.00 0.00 0.00 Proposed Project Total2 16.12 8.93 0.17 0.16 18 Terrasset. 2020, 2021. 10x Genomics, 1701 Springdale Avenue Redevelopment – Request for Information. Dated October 22, 2020. Revised January 6, 2021. 19 Tassano, Mike. Deputy Director of Community Development, Transportation, City of Pleasanton. Personal communication: e-mail. January 4, 2021. 20 Fehr and Peers. 2021. Draft Final Transportation Impact Analysis. March. 21 Ibid.