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Section 5 <br />9 <br />North Centennial <br />59.5 <br />59 -5-0-0- <br />- <br />62,5 <br />Education Center <br />Construction <br />mm <br />10 <br />Southeast Centennial <br />54,8 <br />54.8 <br />0,0 <br />55,0 <br />Education Center <br />11 <br />Single Familly Past <br />71,8 <br />71,8 <br />J b <br />74.8 <br />Fairview Street <br />12 <br />Single Family east <br />71.3 <br />71.3 <br />0.0 <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 />71.4 <br />71 A <br />0.0 <br />74.4 <br />Fairview Street <br />I <br />15 <br />North Godinez High <br />53,6 <br />53.6 1 <br />0.0 <br />55.0 <br />School <br />16 <br />Northwest Mitchell <br />43.5 <br />47.0 <br />35 <br />55.0 <br />School <br />17 <br />North Heritage <br />48.1 <br />51.8 <br />33 <br />55.0 <br />Museum Structure <br />South Godinez High <br />413 <br />511.0 <br />7.7 <br />55.0 <br />School <br />19 <br />Northwest Godinpz <br />462 <br />46.2 <br />0,0 <br />55.0 <br />High School J <br />1 <br />I=City N oise Standad orAfrbient Noise le�pl Q dB When Existing Noise Levels Above City GiLlindard -1 <br />_±GId =EIL <br />�eod� Noise Standw(f Tlire-5hold <br />With the construction of the Sound walls, the well borehole drilling activities would <br />result in noise levels that would range from a 0.1 dB increase to a 7.7 dB <br />increase. As shown in Table 66, the construction activity would not exceed the <br />daytime noise standard. Additionally, the borehole drilling activities would be <br />conducted during the day when the construction activity would be exempt under <br />the City's Noise Ordinance. Potential noise impacts would be less than <br />significant. <br />Table 67: Monitoring Well Borehole Drilling Night Time Noise Levels <br />Receiver <br />Description <br />Existing <br />lExisting + <br />Increase <br />Threshold <br />Construction <br />mm <br />1 <br />Multi Family west <br />34.6 <br />35.0 <br />0.4 <br />500 <br />Santa Ana River <br />2 <br />Multi Family west <br />54.5 <br />54.5 <br />0,0 <br />575 <br />Santa Ana River <br />Single Family north <br />58,1 <br />56.1 <br />00 <br />61.1 <br />Edinger Ave. <br />4 <br />Single Family north <br />570 <br />57.0 <br />00 <br />60.0 <br />Edinger Ave. <br />5 <br />Single Family north <br />57 3 <br />7 -73 <br />0,0- <br />603 <br />Edinger Ave. <br />I <br />In <br />Mid Basin Centennial Park jec oll P roject Final EIR 5-192 <br />kzi, 2 6n We-293 <br />