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09/09/2013 18. The project shall develop a plan demonstrating that the off-road equipment (more than 50 horsepower) to be used in the construction project (i.e., owned, leased, and subcontractor vehicles) would achieve a project-wide fleet-average 20 percent NOx reduction and 45 percent PM reduction compared to the most recent ARB fleet average. Acceptable options for reducing emissions include the use of late-model engines, low-emission diesel products, alternative fuels, engine retrofit technology, after-treatment products, add-on devices such as particulate filters, and/or other options as they become available. 19. Use low-VOC (i.e., ROG) coatings beyond the local requirements (i.e., Regulation 8, Rule 3: Architectural Coatings). 20. All construction equipment, diesel trucks, and generators shall be equipped with Best Available Control Technology for emission reductions of NOx and PM. 21. All contractors shall use equipment that meets ARB's most recent certification standard for off-road heavy-duty diesel engines. (c) Proiect-Specific Measures: 22. For construction, off-road equipment shall be Tier 4 or shall achieve Tier 4 particulate matter emission levels through use of one or more of the following: Tier 2/Tier 3 equipment with diesel particulate filters; alternative fuels (e.g. biodiesel or liquefied natural gas); and/or electrification. 23. For each phase of project construction, the applicant shall maintain ROG emission below 54 pounds per day. The applicant may demonstrate compliance with this limit through one or more of the following: strategic project phasing, use of pre-coated building materials, and/or use of low-VOC coatings beyond the requirements of BAAQMD Regulation 8, Rule 3. Finding: Implementation of Mitigation 8-1 would reduce project construction-related air quality impacts due to localized PM,o and ROG emissions to a less-than- significant level. However, though the NOx emissions from construction of the project would be reduced by up to 20 percent, there is a potential that construction period NOx emissions could still exceed the BAAQMD threshold even with the mitigation measure, and as a result, the potential impact from NOx is considered significant and unavoidable. Facts in Support of Finding: The identified grading, demolition, and construction mitigation measures are recommended by BAAQMD or are based on the BAAQMD CEQA Guidelines. They are effective methods for reducing equipment exhaust emissions and fugitive dust to the maximum extent feasible. However, due to the extent of on-site construction at any one time, there is a potential that construction period NOx emissions could still exceed the BAAQMD threshold even with mitigation, and as a result, the potential impact from NOx is considered significant and unavoidable. These facts are described and quantified in Draft EIR chapter 8 (Air Quality) on pages 8-1 through 8-28, Draft EIR appendix 21.4 (Supplemental Air Quality and Climate Change Information), and Final EIR appendix B (Supplemental Bay Area Air Quality Management District [BAAQMD] ATTY/RES0.2901/STANFORD EIR CERTIFICATION RESO.#15294 REV:09-10-13 VR MUFF#100 Page 10 of 55