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City of Pleasanton CEQA GHG Emissions Thresholds and Guidance Table 7 Pleasanton Locally Applicable Plan/Project CEQA GHG Emissions Thresholds Development2030 New Non-Residential Residential Mixed-Use GHG Emissions Forecast (MT of CO2e per year)' 10,769 5,566 16,335 Demographic Metric2 1,898 new employees 6,266 new residents N/A GHG Efficiency Threshold 2.93 per employee 1.72 per resident 2.26 per service person (MT of CO2e per year) MT=metric tons;CO2e=carbon dioxide equivalents 'Emissions from new mixed-use development would count against the total remaining GHG budget for both new residential and new non-residential development rather than as a function of the number of new service people expected in 2030.This avoids double counting. 2 Demographic estimates were calculated using the forecasts in Table S. Source:Appendix B,CEQA GHG Thresholds Calculations 5.3 Justification for Thresholds Per CEQA Guidelines Section 15064(b)(1), "the determination of whether a project may have a significant effect on the environment calls for careful judgment on the part of the public agency involved, based to the extent possible on scientific and factual data." In addition,CEQA Guidelines Section 15064(b)(2)states, "When using a threshold,the lead agency should briefly explain how compliance with the threshold means that the project's impacts are less than significant." Furthermore, CEQA Guidelines Section 15064.7(b)states "Thresholds of significance to be adopted for general use as part of the lead agency's environmental review process must be adopted by ordinance, resolution, rule,or regulation,and developed through a public review process and be supported by substantial evidence."Therefore,the key considerations when developing thresholds of significance are 1)the thresholds' basis on scientific and factual data; 2) demonstration of how compliance with the thresholds reduces project impacts to a less-than-significant level; 3)support of the thresholds by substantial evidence; and 4)adoption of the thresholds by ordinance, resolution, rule,or regulation, and developed through a public review process.The following subsections address these four key considerations. Basis of Scientific and Factual Data As discussed in Section 5.1, Threshold Calculation Methodology,the quantitative thresholds were developed using data from the City's 2005 and 2017 communitywide GHG inventories and the GHG emissions forecasts for year 2030.These inventories and forecasts were developed by the City in compliance with all relevant protocols and guidance documents, including the U.S.Community Protocol for Accounting and Reporting of Greenhouse Gas Emissions, Local Government Operations Protocol,the Global Protocol for Community Scale GHG Emissions,and the Intergovernmental Panel on Climate Change (IPCC)Guidelines for National GHG Inventories. Furthermore,the inventories and forecasts are based on locally appropriate data for Pleasanton provided by East Bay Clean Energy(EBCE), Pacific Gas& Electric(PG&E), Bay Area Air Quality Management District(BAAQMD), CARB, California Department of Resources Recycling and Recovery(CalRecycle), and Pleasanton City 28