8497-8499 Sunset Boulevard Commercial Project

8497-8499 Sunset Boulevard Commercial Project Initial Study – Mitigated Negative Declaration prepared by City of West Hollywood 8300 Santa Monica Boulevard West Hollywood, California 90069 prepared with the assistance of Rincon Consultants, Inc. 706 South Hill Street, Suite 1200 Los Angeles, California 90014 November 2017 8497-8499 Sunset Boulevard Commercial Project Initial Study – Mitigated Negative Declaration prepared by City of West Hollywood 8300 Santa Monica Boulevard West Hollywood, California 90069 prepared with the assistance of Rincon Consultants, Inc. 706 South Hill Street, Suite 1200 Los Angeles, California 90014 November 2017 This report prepared on 50% recycled paper with 50% post-consumer content. Table of Contents Table of Contents Initial Study .............................................................................................................................................1 1. Project Title .........................................................................................................................1 2. Lead Agency Name, Address and Contact ..........................................................................1 3. Project Sponsor’s Name and Address .................................................................................1 4. Project Location ..................................................................................................................1 5. General Plan Designation ....................................................................................................1 6. Zoning..................................................................................................................................1 7. Project Site Background and Existing Setting .....................................................................4 8. Description of Project .........................................................................................................7 9. Other Public Agencies Whose Approval is Required ....................................................... 21 Environmental Factors Potentially Affected ........................................................................................ 22 Determination ..................................................................................................................................... 22 Environmental Checklist ...................................................................................................................... 25 1 Aesthetics ......................................................................................................................... 25 2 Agriculture and Forestry Resources ................................................................................. 31 3 Air Quality ........................................................................................................................ 33 4 Biological Resources ......................................................................................................... 39 5 Cultural Resources ........................................................................................................... 43 6 Geology and Soils ............................................................................................................. 47 7 Greenhouse Gas Emissions .............................................................................................. 53 8 Hazards and Hazardous Materials ................................................................................... 59 9 Hydrology and Water Quality .......................................................................................... 63 10 Land Use and Planning ..................................................................................................... 69 11 Mineral Resources ........................................................................................................... 73 12 Noise ................................................................................................................................ 75 13 Population and Housing ................................................................................................... 85 14 Public Services .................................................................................................................. 87 15 Recreation ........................................................................................................................ 91 16 Transportation/Traffic ..................................................................................................... 93 17 Tribal Cultural Resources ............................................................................................... 101 18 Utilities and Service Systems ......................................................................................... 105 19 Mandatory Findings of Significance ............................................................................... 111 References ......................................................................................................................................... 113 Bibliography ............................................................................................................................... 113 List of Preparers ......................................................................................................................... 116 Initial Study – Mitigated Negative Declaration i City of West Hollywood 8497-8499 Sunset Boulevard Commercial Project Tables Table 1 Project Summary .................................................................................................................8 Table 2 Health Effects Associated with Criteria Pollutants .......................................................... 34 Table 3 SCAQMD Regional Significance Thresholds ..................................................................... 35 Table 4 SCAQMD LSTs for Construction ....................................................................................... 35 Table 5 Maximum Daily Construction Emissions (pounds/day) ................................................... 37 Table 6 Estimated Project Operational Emissions ........................................................................ 37 Table 7 List of Nearby Regional Faults .......................................................................................... 49 Table 8 Consistency with Applicable West Hollywood Climate Action Plan Reduction Measures .......................................................................................................................... 55 Table 9 Combined Annual Emissions of Greenhouse Gases ........................................................ 58 Table 10 Noise Measurement Results ........................................................................................... 77 Table 11 Typical Noise Levels at Construction Sites ....................................................................... 79 Table 12 Increase in Existing Area Roadway Traffic Volume with Project during AM and PM Peak Hours ................................................................................................................. 81 Table 13 Significance of Changes in Operational Roadway Noise Exposure .................................. 82 Table 14 Vibration Source Levels for Construction Equipment ...................................................... 83 Table 15 Employment Increase Resulting from Proposed Project ................................................. 85 Table 16 West Hollywood Peak-Hour Delay Thresholds ................................................................ 96 Table 17 Project Trip Generation.................................................................................................... 96 Table 18 Intersection Impact Summary for Sunset Boulevard and La Cienega Boulevard/ Miller Drive....................................................................................................................... 97 Table 19 Estimated Wastewater Generation ............................................................................... 106 Table 20 Solid Waste Disposal Facilities ....................................................................................... 108 Table 21 Estimated Project Solid Waste Generation .................................................................... 109 Figures Figure 1 Regional Location ................................................................................................................2 Figure 2 Project Site Location ...........................................................................................................3 Figure 3 Photographs of the Project Site and Surrounding Development .......................................5 Figure 4 Photographs of Development Surrounding the Project Site ..............................................6 Figure 5 Proposed Sub-Level 4 Parking Garage Floor Plan ...............................................................9 Figure 6 Proposed Sub-Level 3 Parking Garage Floor Plan ............................................................ 10 Figure 7 Proposed Sub-Level 2 Parking Garage Floor Plan ............................................................ 11 ii Table of Contents Figure 8 Proposed Sub-Level 1 Parking Garage Floor Plan ............................................................ 12 Figure 9 Proposed Level 1 (Ground) Floor Plan ............................................................................. 13 Figure 10 Mezzanine Floor Plan ......................................................................................................

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