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Section 5 <br />8 <br />1 amily north <br />€i6.2 <br />66.3 <br />OA <br />69.2 <br />Edinger Ave. <br />":dtistinuction <br />-6 <br />North Centennial <br />59,5 <br />58.8 <br />-0.7 <br />62.5 <br />Education Center <br />10 <br />Southeast Centennial <br />54.8 <br />54,8 <br />0.0 <br />55.0 <br />Erl Center <br />11 <br />Single Family east <br />71.8 <br />71,8 <br />O'D <br />74.6 <br />Fairview Street <br />12 <br />Single Family east <br />7113 <br />71,3 <br />00 <br />74.3 <br />Fairview Street <br />13 <br />Single Family east <br />71 3 <br />71.3 <br />0.0 <br />74,3 <br />Fairview Street <br />14 <br />Single Family east <br />714 <br />71.4 <br />0.0 <br />74.4 <br />Fairview Street <br />15 <br />North Godinez High <br />- <br />53.6 <br />516 <br />0,0 <br />55.0 <br />School <br />16 <br />Northwest Mitchell <br />43.5 <br />43.5 <br />D'O <br />55,0 <br />School <br />17 <br />North Heritage Museum <br />48.1 <br />451 <br />0.0 <br />55.0 <br />Structure <br />18 <br />South Godinez High <br />43.-3 <br />433 <br />0.0 <br />55.0 <br />School <br />19 <br />Northwest Godinez High <br />46.2 <br />46.2 <br />o 0 <br />55.0 <br />School <br />I-C it V Make Standairld or Ambient Noise level 1 +3 :16 WheTi Exist in Lj Noise leave Is. A ituve City &andofd <br />Bold mE.oeeds Ncnsa 9rviidard I hrshold <br />MB14 Borehole Driffing✓Reaming and MBI-2 Well Development <br />The noise levels generated during concurrent borehole drilling at MB-4 and well <br />development at M'BI-2 are shown in Table 58 and Table 59. The borehole drilling <br />activities would occur 24 hours seven days a week over an 8 day period. <br />Additionally, test engines utilized in the well development of MBI-2 would be <br />required to operate 12 to 24 hours a day to simulate well operations. The <br />duration of engine testing would be 6 days for 12 hours and 1 day for 24 hours. <br />Table 58: MBI-4 Borehole Drilling and MBI-2 Well Development Day Time <br />Noise Levels <br />'Aacelver <br />Description <br />ExIsti <br />9XISOJI <br />incree11I <br />Throill <br />":dtistinuction <br />1 <br />Multi Family west <br />41.8 <br />488 <br />7.0 <br />55.0 <br />Santa Ana River <br />2 <br />Multi Family west <br />61.9 <br />621 <br />1 <br />64.9 <br />Santa Ana River <br />3 <br />Single Family north <br />1_65-Z <br />65.7 <br />0.1 <br />1 65,6 <br />Mid <br />rig�Project Final EIR 5-181 <br />Basin Centennial Park ��q&_ <br />