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Section 5 <br />13 <br />Single Family east <br />663 <br />66.3 <br />0.0 <br />693 <br />Fairview Street <br />rl�onstroctlon <br />14 <br />Single Family east <br />66,3 <br />663 <br />0.0 <br />66.3 <br />Fairview Street <br />15 <br />North Godinez High <br />48.4 <br />48.4 <br />0.0 <br />51 <br />School <br />16 <br />Northwest Mitchell <br />37.4 <br />37,6 <br />0,2 <br />50.0 <br />School <br />4 <br />North Heritage MuSeUlln <br />42.9 <br />431 <br />02 <br />50.0 <br />Stricture <br />18 <br />South Godinez High <br />38.2 <br />38,2 <br />0.0 <br />50.0 <br />School <br />19 Northwest Godinez High 35.3 35.4 01 50.0 <br />School i <br />ii-Ciry NDisp Standard cir Ambnent Noise level 13 d13 when Ambient aiduve Giv Noise Standard <br />Bold aExceeds NojEe SLandard Theashold <br />With the construction of the sound walls the well borehole drilling activities would <br />result in noise levels that would range from a OA dB increase to a 2.5 dB <br />increase. As shown in Table 61, the construction activity would not exceed the <br />night time noise standard. Potential noise impacts would be less than significant. <br />Phase 6 Construction Activities <br />The Phase 6 construction activities would include well development of MBI-4. <br />The noise levels generated during well development at MBI-4 are shown in Table <br />62 and Table 63. The well development activities would occur 24 hours seven <br />days a week over an 8 day period. Additionally, test engines utilized in the well <br />development of MBI-4 would be required to operate 12 to 24 hours a day to <br />simulate well operations. The duration of engine testing would be 6 days for 12 <br />hours and I day for 24 hours, <br />Table 62: MBI-4 Well Development Day Time Noise Levels <br />Recelvor <br />Description <br />Existing <br />Existing + <br />increase <br />1hrishold <br />rl�onstroctlon <br />1 <br />Multi Family west Santa <br />41.8 <br />42.5 <br />0.7 <br />55.0 <br />Ana River <br />2 <br />Multi Family west Santa <br />61.9 <br />62.0 <br />01 <br />64.9 <br />Ana, River <br />3 <br />Single Family north <br />35,15 <br />65.6 <br />0.0 <br />68.6 <br />Edinger Ave. <br />4 <br />Single Family north <br />64.4 <br />64.4 <br />0.0 <br />Edinger Ave. <br />5 <br />Single Family north <br />64.7 <br />647 <br />0.1 <br />Edinger Ave. <br />6 <br />Single family inorth <br />71.7 <br />71.8 <br />O'l <br />Mid Basin Centennial Park 21jgq&g�Project Final EIR 5 <br />