RES 211231 Exhibit A - Laserfiche WebLink

Environmental Checklist and City of Pleasanton–10x Genomics Project Environmental Evaluation Initial Study/Mitigated Negative Declaration 64 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 Fuel use associated with construction vehicle trips generated by the proposed project was also estimated including construction worker trips, haul truck trips for material transport, and vendor trips for construction material deliveries. Fuel use from these vehicles traveling to the project site was based on (1) the projected number of trips the proposed project would generate during construction, (2) average trip distances by trip type, and (3) fuel efficiencies estimated in the ARB Emissions Factors model (EMFAC) mobile source emission model. Appendix D provides the specific parameters used to estimate fuel usage. In total, the proposed project is estimated to generate 671,483 VMT and a combined 31,078 gallons of gasoline and diesel for vehicle travel during construction. Other equipment could include construction lighting, field services (office trailers), and electrically driven equipment such as pumps and other tools. As described in Section 2.13, Noise, construction activities are restricted to between the hours of 8:00 a.m. and 8:00 p.m. daily, except Sunday and holidays, when the exemption shall apply between 10:00 a.m. and 6:00 p.m. in Section 9.04.100 of the City of Pleasanton Municipal Code. As on-site construction activities would be restricted to these hours, it is anticipated that the use of construction lighting would be minimal. Single-wide mobile office trailers, commonly used in construction staging areas, generally range in size from 160 square feet to 720 square feet. A typical 720-square-foot office trailer would consume approximately 27,966 kilowatt-hours (kWh) during the roughly 1-year and 9-months construction period (Appendix D). The overall construction schedule and process are already designed to be efficient to avoid excess monetary costs. This is because equipment and fuel are not typically used wastefully due to the added expense associated with renting the equipment, maintaining it, and fueling it. Therefore, the opportunities for future efficiency gains during construction are limited. For the reasons discussed above, it is anticipated that the construction phase of the proposed project would not result in wasteful, inefficient, and unnecessary consumption of energy. Construction-related energy impacts would be less than significant. Operational Impacts The proposed project would consume energy as part of building operations and transportation activities. Due to the unique nature of the proposed project, electricity and natural gas consumption rates for the proposed project were adjusted to reflect the consumption rates experienced in the existing 10x Genomics facility at 6230 Stoneridge Mall Road, in Pleasanton, California. Electricity and natural gas utility meter data for the existing 10x Genomics facility for March 2018 through April 2019 were utilized to estimate the anticipated electricity and natural gas consumption rates for the proposed project. Please see the Utility Calculations sheet contained in Appendix A for more information. Table 12 summarizes the existing and proposed operational energy consumption.