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*:/:I1-3Ill ira <br />Construction Localized Significance Thresholds: Grading <br />Source <br />Receptor <br />Source <br />Project site <br />SRA No. Acres <br />Distance <br />Receptor <br />Acreage <br />meters <br />Distance (Feet) <br />Disturbed <br />17 1.09 <br />Source Receptor Central Orange County <br />Equipment <br />Acres/84rr Day <br />Daily hours <br />Equipment Used <br />Acres <br />Distance (meters) 25 <br />Tractors <br />0.5 <br />0.0625 <br />7 <br />1 <br />0.4375 <br />NOx 84 <br />Graders <br />0.5 <br />0.0625 <br />6 <br />1 <br />0.375 <br />CO 506 <br />Dozers <br />0.5 <br />0.0625 <br />6 <br />1 <br />0.375 <br />PM10 4.18 <br />Scrapers <br />1 <br />0.125 <br />0 <br />0 <br />0 <br />PM2.5 3.09 <br />Acres <br />1.19 <br />Acres <br />25 <br />50 <br />100 <br />200 <br />500 <br />NOx 1 <br />81 <br />83 <br />98 <br />123 <br />192 <br />2 <br />115 <br />114 <br />125 <br />148 <br />205 <br />84 <br />86 <br />100 <br />125 <br />193 <br />CO 1 <br />485 <br />753 <br />1128 <br />2109 <br />6841 <br />2 <br />715 <br />1041 <br />1547 <br />2685 <br />7493 <br />506 <br />779 <br />1166 <br />2161 <br />6900 <br />PM10 1 <br />4 <br />12 <br />28 <br />60 <br />158 <br />2 <br />6 <br />19 <br />35 <br />68 <br />166 <br />4 <br />13 <br />29 <br />61 <br />159 <br />PM2.5 1 <br />3 <br />4 <br />9 <br />22 <br />85 <br />2 <br />4 <br />6 <br />11 <br />25 <br />92 <br />3 <br />4 <br />9 <br />22 <br />86 <br />Central Orange County <br />1.09 Acres <br />25 <br />50 <br />100 <br />200 <br />500 <br />NOx 84 <br />86 <br />100 <br />125 <br />193 <br />CO 506 <br />779 <br />1166 <br />2161 <br />6900 <br />PM10 4 <br />13 <br />29 <br />61 <br />159 <br />PM2.5 3 <br />4 <br />9 <br />22 <br />86 <br />Acre Below <br />Acre Above <br />SRA No. Acres <br />SRA No. <br />Acres <br />17 1 <br />17 <br />2 <br />Distance Increment Below <br />25 <br />Distance Increment Above <br />25 <br />Updated. 1021/2009 -Table C-1. 2006— 2008 <br />75C-209 <br />