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LSA ASSOCIATES, INC. <br />JULY 2010 <br />INITIAL STUDY/MITIGATED NEGATIVE DECLARATION <br />FIRST STREET BRIDGE REPLACEMENT PROJECT <br />CITY OF SANTA ANA <br />With Calibration (CNEL) <br /> <br />Sound <br />Barrier <br />No. <br /> <br />Modeled <br />Receptor <br /> <br />Existing <br />(2007) <br />Without <br />Project <br />(2030) Future <br />With <br />Project <br />(2030) Change <br />from <br />Without <br />Project <br /> <br />Requires <br />Abatement <br />NR R-32 53 54 55 2 no <br />NR R-33 66 67 69 2 no <br />NR R-34 64 65 67 2 no <br />NR R-35 67 68 68 1 no <br />NR R-36 63 63 64 1 no <br />NR R-37 71 71 75 3 not <br />NR R-38 60 61 62 1 no <br />NR R-39 49 50 51 1 no <br />NR R-40 68 69 70 1 no <br />1. No outdoor use area exists at this location. <br />2. No sensitive receptor is located at this location. <br />Highlight indicates that the Future With Project noise level exceeds 65 CNEL. <br />NR = Not required <br />07/25/10 «PADMJO7O1\MND\4.0 Environmental Analysis.doc» <br />4-29 <br />20A-80