RES 211231 Exhibit A - Laserfiche WebLink

City of Pleasanton–10x Genomics Project Environmental Checklist and Initial Study/Mitigated Negative Declaration Environmental Evaluation FirstCarbon Solutions 35 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 Activity ROG NOX PM10 Exhaust PM2.5 Exhaust Tons per Year Significance Threshold (lbs/day) 54 54 82 54 Exceeds Significance Threshold? No No No No Notes: lbs = pounds ROG = reactive organic gases NOX = oxides of nitrogen PM10 = particulate matter 10 microns in diameter PM2.5 = particulate matter 2.5 microns in diameter 1 Totals may not add up due to rounding. Calculations use unrounded totals. 2 Calculated by dividing the total lbs. of emissions by the total number of working days of construction (381). Source: CalEEMod Output (see Appendix A). As shown in Table 4, the average daily construction emissions from all construction activities are below the BAAQMD thresholds of significance; therefore, project construction would have a less than significant impact regarding emissions of ROG, NOX, exhaust PM10, and exhaust PM2.5. As previously discussed, the proposed project must implement MM AIR-1 for BMPs recommended by the BAAQMD to reduce potential impacts related to fugitive dust emissions from construction equipment. Therefore, project construction would have a less than significant impact with incorporation of MM AIR-1. Operational Emissions Operational Air Pollutant Emissions: ROG, NOX, PM10, and PM2.5 Operational emissions would include area, energy, and mobile sources. Area sources would include emissions from architectural coatings, consumer products, and landscape equipment. Energy sources include emissions from the combustion of natural gas for water heaters and other heat sources. Mobile sources include exhaust and road dust emissions from the automobiles that would travel to and from the project site. Stationary sources include emissions from stationary source equipment, such as back-up generators, that would require a permit issued by the BAAQMD. As the proposed project includes a back-up diesel generator, stationary source emissions are included in the annual emissions summary displayed in Table 7. Pollutants of concern include ROG, NOX, PM10, and PM2.5. Project operations were analyzed assuming operations would commence immediately following the completion of each project phase’s construction. As previously stated, the anticipated construction schedule displayed in Table 3 represents a construction schedule updated from that utilized in the emissions modeling contained in Appendix A. 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, which reflects the anticipated construction