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ENVIRONMENTAL IMPACT REPORT ADDENDUM <br />Bristol Street Widening Phase ILIA — Civic Center Drive to Washington Avenue <br />TABLE OF CONTENTS <br />1.0 INTRODUCTION.................................................................................................................... I <br />1.1 PURPOSE OF AN ADDENDUM.................................................................................................. 2 <br />1.2 PROJECT LOCATION................................................................................................................4 <br />1.2.1 Existing Land Uses.........................................................................................................4 <br />1.3 PROJECT BACKGROUND....................................................................................................... <br />11 <br />1.3.1 Approved 1990 Final EIR/EIS.....................................................................................11 <br />1.3.2 Adopted Transportation Improvement Program...........................................................11 <br />1.4 PROJECT DESCRIPTION......................................................................................................... <br />12 <br />1.4.1 Bristol Street Widening Phase IIIA Project Area.........................................................12 <br />1.4.2 Property Acquisition.....................................................................................................12 <br />1.4.3 Changes as Compared to the Approved Project...........................................................17 <br />1.4.4 Construction Timeframe...............................................................................................18 <br />1.5 DISCRETIONARY ACTIONS.................................................................................................... <br />18 <br />2.0 ENVIRONMENTAL CHECKLIST.....................................................................................25 <br />2.1 BACKGROUND...................................................................................................................... 25 <br />3.0 ENVIRONMENTAL CONSEQUENCES............................................................................26 <br />3.1 <br />AESTHETICS..........................................................................................................................26 <br />3.2 <br />AGRICULTURAL RESOURCES................................................................................................28 <br />3.3 <br />AIR QUALITY........................................................................................................................ <br />29 <br />3.4 <br />BIOLOGICAL RESOURCES..................................................................................................... <br />35 <br />3.5 <br />CULTURAL RESOURCES........................................................................................................ <br />37 <br />3.6 <br />GEOLOGY AND SOILS............................................................................................................38 <br />3.7 <br />GREENHOUSE GAS EMISSIONS.............................................................................................40 <br />3.8 <br />HAZARDS AND HAZARDOUS MATERIALS.............................................................................41 <br />3.9 <br />HYDROLOGY AND WATER QUALITY.................................................................................... <br />43 <br />3.10 <br />LAND USE AND PLANNING................................................................................................... <br />46 <br />3.11 <br />MINERAL RESOURCES.......................................................................................................... <br />47 <br />3.12 <br />NOISE....................................................................................................................................48 <br />3.13 <br />POPULATION AND HOUSING................................................................................................. <br />49 <br />3.14 <br />PUBLIC SERVICES................................................................................................................. <br />51 <br />3.15 <br />RECREATION.........................................................................................................................52 <br />3.16 <br />TRANSPORTATION/TRAFFIC................................................................................................. <br />52 <br />3.17 <br />UTILITIES AND SERVICE SYSTEMS....................................................................................... <br />54 <br />3.18 <br />MANDATORY FINDINGS OF SIGNIFICANCE........................................................................... <br />56 <br />4.0 REFERENCES....................................................................................................................... 57 <br />FIGURES: <br />FIGURE 1 REGIONAL LOCATION......................................................................................................... 5 <br />FIGURE 2 PROJECT LOCATION............................................................................................................ 7 <br />FIGURE 3 EXISTING LAND USE (1990 FEIS/EIR)...............................................................................9 <br />FIGURE 4 PROPERTY ACQUISITIONS................................................................................................. 15 <br />FIGURE 5 PROPOSED PROJECT LANE GEOMETRICS.......................................................................... 19 <br />FIGURE 6 BRISTOL STREET/CIVIC CENTER DRIVE INTERSECTION (1990 FINAL EIS/ETR) .................. 21 <br />FIGURE 7 BRISTOL STREET/OTHER INTERSECTIONS (1990 FINAL EIS/EIR)..................................... 23 <br />ANA 305-01 1 (PER 02) CITY OF SANTA ANA (0111912015) YU PAGE i <br />