75B - PH - AMEND DEVELOPMENT AGMT 2005-02

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MacArthur Project Modification - Santa Ana - Air Quality Assessment KPC Environmental, Inc. Nitrogen Dioxide: California reduced the NO2 1-hour standard from 0.25 ppm to .18 ppm in February of 2007. Greenhouse Gases (GHG): Presently there are no federal regulations on the reduction of Greenhouse Gases (GHG) or to reduce their effects on global climate changes. In the State of California Assembly Bill 32 (AB32), known as the Global Warming Solutions Act was passed by the state legislature in August of 2006. AB32 requires that levels of GHG be reduced to 1990 levels by the year 2020 and by 80 percent of the 1990 levels by the year 2050. In order to address GHG emissions and comply with AB32 in General Plans and CEQA documents Senate Bill 97 (SB97) required the State's Governor's Office of Planning and Research (OPR) to develop guidelines for CEQA compliance on how to address GHG emissions along with mitigation measures to reduce project GHG emissions. Guidelines with changes to CEQA 15064.4 Determining the Significance of Greehouse Gas Emissions encourages lead agencies to quantify GHG emissions of proposed projects where possible and recommends that lead agencies consider several other qualitative factors in determining significance including: 1) the extent to which a project may increase or reduce GHG as compared to the existing environmental setting; 2) whether the project emissions exceed a threshold of significance that the lead agency determines is applicable to the project; and 3) the extent to which the project complies with regulations or requirements adopted to implement a statewide, regional, or local plan for the reduction or mitigation of GHG emissions. 4.2 Regional Air Quality Summary 2006 - 2008 According to the current data from the South Coast Air Quality Management District (SCAQMD) and the California Air Resource Board (CARB) in 2008, there were a total of 120 days for the new 8-hour ozone standard in the SCAB (Basin) locations were exceeded. The number of days exceeding the federal ozone standard varied widely by area, from zero to 97 exceedances, depending on location with the majority of exceedances occurring in the Riverside and San Bernardino County regions. Exceedances were fewer at the coast, increasing to a maximum in the Basin's Central San Bernardino Mountains and inland valleys, and then decreasing further downwind in the Basin's far inland areas. The Central San Bernardino Mountains area exceeded the federal ozone standard most frequently, 97 days. The more stringent state standard was exceeded on 115 days in the same area. In 2008, carbon monoxide concentrations did not exceed the Federal or State standards in the SCAB for either the 1-hour or 8-hour concentrations. The highest carbon monoxide concentrations were recorded in Riverside County and central Los Angeles county areas. The maximum 8-hour average concentration of 4.3 ppm, recorded in South Central Los Angeles County, which is below the federal and state standards by 4.7 ppm. 02/02/11 75B-115