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Contents <br />HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR <br />CITY OF SANTA ANA <br />Table of Contents <br />October 2014 Page in <br />5.5.8 <br />Level of Significance After Mitigation ....................................... ............................... <br />5.5 -17 <br />5.5.9 <br />References ....................................................................................... ............................... <br />5.5 -17 <br />5.6 <br />HAZARDS AND HAZARDOUS MATERIALS ......................................... ..........................5.6 <br />-1 <br />5.6.1 <br />Environmental Setting .......................................................................... ..........................5.6 <br />-1 <br />5.6.2 <br />Thresholds of Significance ........................................................... ............................... <br />5.6 -17 <br />5.6.3 <br />Environmental Impacts ................................................................ ............................... <br />5.6 -18 <br />5.6.4 <br />Cumulative Impacts ....................................................................... ............................... <br />5.6 -22 <br />5.6.5 <br />Existing Regulations and Standard Conditions ......................... ............................... <br />5.6 -23 <br />5.6.6 <br />Level of Significance Before Mitigation ..................................... ............................... <br />5.6 -23 <br />5.6.7 <br />Mitigation Measures ...................................................................... ............................... <br />5.6 -23 <br />5.6.8 <br />Level of Significance After Mitigation ....................................... ............................... <br />5.6 -24 <br />5.6.9 <br />References ....................................................................................... ............................... <br />5.6 -24 <br />5.7 <br />HYDROLOGY <br />AND WATER QUALITY .................................................... ..........................5.7 <br />-1 <br />5.7.1 <br />Environmental Setting .......................................................................... ..........................5.7 <br />-1 <br />5.7.2 <br />Thresholds of Significance ........................................................... ............................... <br />5.7 -16 <br />5.7.3 <br />Environmental Impacts ................................................................ ............................... <br />5.7 -19 <br />5.7.4 <br />Cumulative Impacts ....................................................................... ............................... <br />5.7 -27 <br />5.7.5 <br />Existing Regulations ............................................................................ .........................5.7 <br />-28 <br />5.7.6 <br />Level of Significance Before Mitigation ..................................... ............................... <br />5.7 -28 <br />5.7.7 <br />Mitigation Measures ...................................................................... ............................... <br />5.7 -29 <br />5.7.8 <br />Level of Significance After Mitigation ....................................... ............................... <br />5.7 -30 <br />5.7.9 <br />References ....................................................................................... ............................... <br />5.7 -31 <br />5.8 <br />LAND <br />USE AND PLANNING ....................................................................... ..........................5.8 <br />-1 <br />5.8.1 <br />Environmental Setting .......................................................................... ..........................5.8 <br />-1 <br />5.8.2 <br />Thresholds of Significance ................................................................... ..........................5.8 <br />-3 <br />5.8.3 <br />Environmental Impacts ........................................................................ ..........................5.8 <br />-4 <br />5.8.4 <br />Cumulative Impacts ....................................................................... ............................... <br />5.8 -16 <br />5.8.5 <br />Existing Regulations and Standard Conditions ......................... ............................... <br />5.8 -17 <br />5.8.6 <br />Level of Significance Before Mitigation ..................................... ............................... <br />5.8 -17 <br />5.8.7 <br />Mitigation Measures ...................................................................... ............................... <br />5.8 -17 <br />5.8.8 <br />Level of Significance After Mitigation ....................................... ............................... <br />5.8 -17 <br />5.8.9 <br />Reference ............................................................................................... .........................5.8 <br />-17 <br />5.9 <br />NOISE <br />.................................................................................................................... ..........................5.9 <br />-1 <br />5.9.1 <br />Terminology and Noise and Vibration Descriptors ......................... ..........................5.9 <br />-1 <br />5.9.2 <br />Regulatory Framework .......................................................................... ..........................5.9 <br />-5 <br />5.9.3 <br />Exis Ling Noise Environment ............................................................... ..........................5.9 <br />-7 <br />5.9.4 <br />Thresholds of Significance ................................................................... ..........................5.9 <br />-7 <br />5.9.5 <br />Environmental Impacts ........................................................................ ..........................5.9 <br />-8 <br />5.9.6 <br />Cumulative Impacts ....................................................................... ............................... <br />5.9 -19 <br />5.9.7 <br />Existing Regulations and Standard Conditions ......................... ............................... <br />5.9 -20 <br />5.9.8 <br />Level of Significance Before Mitigation ..................................... ............................... <br />5.9 -20 <br />5.9.9 <br />Mitigation Measures ...................................................................... ............................... <br />5.9 -21 <br />5.9.10 <br />Level of Significance After Mitigation ....................................... ............................... <br />5.9 -23 <br />5.9.11 <br />References ....................................................................................... ............................... <br />5.9 -23 <br />5.10 <br />POPULATION <br />AND HOUSING ........................................................... ............................... <br />5.10 -1 <br />5.10.1 <br />Environmental Setting .................................................................. ............................... <br />5.10 -1 <br />5.10.2 <br />Thresholds of SiPnificance ........................................................... ............................... <br />5.10 -6 <br />October 2014 Page in <br />