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Draft Supplemental Environmental Impact Report Page IV.D-16 Forward Inc.Landfill 2018 Revised Project Potential Impacts and Mitigation Measures Criteria of Significance According to Appendix G of the CEQA Guidelines a project may be deemed to have a significant effect on the environment if it would: • Conflict with or obstruct implementation of the applicable air quality plan(s); • Violate any air quality standard or contribute substantially to an existing or projected air quality violation; • Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors); • Expose sensitive receptors to substantial pollutant concentrations;or • Create objectionable odors affecting a substantial number of people. Also,to address GHG emissions, a project may be deemed to have a significant effect on the environment if it would: • Generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment;or • Conflict with an applicable plan,policy,or regulation adopted for the purpose of reducing the emissions of GHGs. Consistent with CEQA Guidelines Appendix G, the SJVAPCD has established thresholds of significance that may be relied upon in assessing construction impacts,project operations and cumulative impacts. The SJVAPCD's GAMAQI includes significance criteria for evaluating construction emissions, operational-phase emissions from permitted equipment and activities, and operational-phase emissions from non-permitted equipment and activities. Construction emissions, operational- phase emissions from permitted equipment and activities, and operational-phase emissions from non-permitted equipment and activities are evaluated separately and compared to the significance criteria. Non-permitted equipment and activities include on-road mobile sources and off-road equipment and do not include permitted equipment/activities (stationary sources) covered under permit with the SJVAPCD. For this analysis,the project would be considered to have a significant effect on the environment if it would exceed the following thresholds: • Cause a net increase in pollutant emissions of reactive organic gases (ROG) or NOX exceeding 10 tons per year. ' • Cause a net increase in pollutant emissions of PM,o or PM2.5 exceeding 15 tons per year. • Cause a net increase in pollutant emissions of SOX exceeding 27 tons per year. • Cause a net increase in pollutant emissions of CO exceeding 100 tons per year.