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Section 8 <br />Table 99: Orange County Attainment Status <br />Criteria Pollutant <br />Federal A4mblent Air Quality Standard <br />De minir l,s <br />Threshold <br />Designation <br />Classification <br />(tpy) <br />Ozone <br />Nonattainment <br />Extreme <br />10" (VOC or <br />NOx) <br />Carbon monoxide <br />Maintenance <br />Serious <br />100 <br />Nitrogen dioxide <br />ArtairrmentlMainlenance <br />N/A <br />100 <br />(annual) <br />Sulfur dioxide <br />Attainment <br />NIA <br />N/A <br />PMr� <br />Nonattainment <br />Serious <br />70 <br />PM2.b' <br />Nonattainment <br />NIA <br />N/A <br />Lead <br />Attainment <br />NIA <br />N/A <br />Notes'. <br />ipy = tons per year <br />VnC — V4 kuilel organic Cernpuuin[f, s <br />NO, — nitrogen oxides <br />MIA = Not applicable <br />imp, applicable via mimme, thredhoid appl'ios equally to each ozone pnecucsar (VOG and NOd <br />The General GonVnrrnity rule does riot currently address `W, <br />Source'. US E'nvironmanral protection Agency 2013a, Green Bock Nun�attainrurenv Areas for CnWria Pollutants, Websi,td; <br />www.Ppe goWM0oegpsligreen6k) . Accessed February 7, 2 ©'13. <br />U. 5 Environmeri Protraction Agency 20131 General Conformity ON mmurusLevels. Vueesire', Mrs /Avew:epa,9olalr <br />FgeinranforrnJdominlmis.h4rnL Accessed February 7, 2013. <br />As shown in Table 99, the project area is in ncnattainment for the federal ozone <br />and PM2 5 standards, ands maintenance for federal PM10 standards. De minimis <br />thresholds apply to annual emissions. The de minimis threshold for ozone <br />applies equally to each ozone precursors VOC and NOx. The de minimis <br />threshold for nitrogen dioxide is greater than the threshold for NOx, however, <br />nitrogen dioxide is one of the nitrogen oxides (N!Ox). Therefore, if the project <br />generates less NOx, than the 10 -tons- per -year (tpy) threshold for ozone, the <br />project would generate less nitrogen dioxide than 10 tpy and, thus, less than the <br />de minimis threshold of 100 tpy, The de minimis threshold for carbon monoxide <br />is 100 tpy, Conformity determinations for sulfur dioxide and lead are not <br />required, <br />Project Emissions <br />(Construction - Generated Localized Air Pollutants <br />Localized air quality impact thresholds represent the maximum emissions from a <br />project that would not Cause or contribute to an exceedance of applicable state or <br />federal ambient air quality standard. As shown in Table 100 Proposed Project <br />tq Mid Basin Centennial Park (Project Final EIR 5 -13 <br />