2019-090 - Adopting the Mitigated Negative Declaration

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*AV : 11-1 h WA breathing rates and length of residential exposures. When combined together, SCAQMD estimates that risks for a given inhalation exposure level will be about 2.7 times higher using the proposed updated methods identified in MATES IV (e.g., 2.7 times higher than 418 in one million overall excess cancer risk) (SCAQMD 2015a). Air Quality Management Planning SCAQMD is the agency responsible for preparing the air quality management plan (AQMP) for the SoCAB in coordination with the Southern California Association of Governments (SCAG). Since 1979, a number of AQMPs have been prepared. 2016 AQMP On March 3, 2017, SCAQMD adopted the 2016 AQMP as an update to the 2012 AQMP The 2016 AQMP addresses strategies and measures to attain the following National AAQS: ■ 2008 National 8-hour ozone standard by 2031, ■ 2012 National annual PMz s standard by 20256, ■ 2006 National 24-hour PMz s standard by 2019, ■ 1997 National 8-hour ozone standard by 2023, and the - 1979 National 1-hour ozone standard by year 2022. It is projected that total NOx emissions in the SoCAB would need to be reduced to 150 tons per day (tpd) by year 2023 and to 100 tpd in year 2031 to meet the 1997 and 2008 federal 8-hour ozone standards. The strategy to meet the 1997 federal 8-hour ozone standard would also lead to attaining the 1979 federal 1-hour ozone standard by year 2022 (SCAQMD 2017), which requires reducing NOx emissions in the SoCAB to 250 tpd. This is approximately 45 percent additional reductions above existing regulations for the 2023 ozone standard and 55 percent additional reductions above existing regulations to meet the 2031 ozone standard. Reducing NOx emissions would also reduce PMz s concentrations in the SoCAB. However, as the goal is to meet the 2012 federal annual PM25 standard no later than year 2025, SCAQMD is seeking to reclassify the SoCAB from "moderate" to "serious" nonattainment under this federal standard. A "moderate" non - attainment would require meeting the 2012 federal standard by no later than 2021 Overall, the 2016 AQMP is composed of stationary and mobile source emission reductions from regulatory control measures, incentivebasedprograms, co -benefits from climate programs, mobile source strategies, and reductions from federal sources such as ancrafts, locomotives, and ocean-going vessels. Strategies outlined in the 2016 AQMP would be implemented in collaboration between CARB and the EPA (SCAQMD 2017). 144.11 Im hi9:8hTjI 644al4,IFIN i[•L6»_V In 2008 EPA designated the Eos Angeles County portion of the SoCAB nonattamment under the federal lead (Pb) classification due to the addition of source -specific monitoring under the new federal regulation. 6 The 2016 AQMP requests a redassification from moderate to serious non -attainment for the 2012 National PMz s standard 75C-147