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Pleasanton Gateway— Environmental Checklist Ozone /Bay Area 2000 Clean Air Plan The San Francisco air basin is currently non- attainment for ozone (state and federal ambient standards) and particulates (PM10, state ambient standards). While air quality plans exist for ozone, none exists or is currently required for PM10. The "2005 Bay Area Ozone Strategy' is the current ozone air quality plan required under the Federal "Clean Air Acf'. The state - mandated regional air quality plan is the "Bay Area 2000 Clean Air Plan ". These plans contain mobile source controls, stationary source controls, and transportation control measures to be implemented in the region to attain the state and federal ozone standards with the San Francisco Bay Area Basin. Greenhouse Gas Emissions In 2006, the Governor of California signed AB 32, the "Global Warming Solutions Act ", into law that requires California cap its Greenhouse Gas (GHG) emissions at 1990 levels by the year 2020. On December 11, 2008, the California Environmental Protection Agency Air Resources Board (ARB) adopted the, "Climate Change Scoping Plan" to achieve the GHG reductions required by AB 32. The Scoping Plan contains the main strategies California will implement to reduce GHG emissions by 174 million metric tons (MMT), or approximately 30 percent, from the state's projected 2020 emissions level of 596 MMT of CO2e under a business -as -usual scenario. The Scoping Plan also breaks down the GHG emissions reductions for each emission. While the ARB has identified a GHG reduction target of 15 percent for local governments, it has not as yet determined its recommended GHG emissions from local government land use decisions. However, the Scoping Plan does rely on local governments' land use planning and urban growth decision - making for the successful implementation of the Scoping Plan. The measures approved by ARB must be enacted by 2012. The BAAQMD's June 2010 Guidelines include screening levels, thresholds of significance, and methods of analysis for GHG emissions. The firm Lamphier- Gregory prepared the, "GHG Emissions Analysis for the Pleasanton Gateway Project ", dated June 30, 2010, that is attached and referenced in the following Air Quality section of the Initial Study and is consistent with the adopted thresholds and is intended to be consistent with the June 2010 Guidelines and recommended analysis methodologies. Standards of Significance For purposes of this environmental document, an impact is considered significant if the proposed project would: • Conflict with or obstruct implementation of the applicable air quality plan; • Result in pollution emission levels above those established by BAAQMD in either short term (construction related) or long term (traffic); • Expose sensitive receptors to substantial pollutant concentrations; • Create objectionable odors affecting a substantial number of people; and, • Exceed the BAAQMD GHG emissions standard of 1,100 metric tons per year of CO or 4.6 metric tons CO per service population per year. Page 21 of 52 Pleasanton Gateway Initial Study August 2, 2010