Conejo Community Park and Center Project Final Initial Study – Mitigated Negative Declaration SCH#2021050004 prepared for Conejo Recreation and Park District 403 West Hillcrest Drive Thousand Oaks, California 91360 under contract to: AGD Architecture and Design 2050 Parker Street San Luis Obispo, California 93401 Contact: Andrew C. Goodwin prepared by Rincon Consultants, Inc. 180 North Ashwood Avenue Ventura, California 93003 June 2021 Conejo Community Park and Center Project Final Initial Study – Mitigated Negative Declaration SCH#2021050004 prepared for Conejo Recreation and Park District 403 West Hillcrest Drive Thousand Oaks, California 91360 under contract to: AGD Architecture and Design 2050 Parker Street San Luis Obispo, California 93401 Contact: Andrew C. Goodwin prepared by Rincon Consultants, Inc. 180 North Ashwood Avenue Ventura, California 93003 June 2021 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 and Address ................................................................................. 1 3. Contact Person and Phone Number ............................................................................ 1 4. Project Location ........................................................................................................ 1 5. Project Sponsor’s Name and Address.......................................................................... 1 6. General Plan Designation ........................................................................................... 1 7. Zoning ...................................................................................................................... 1 8. Project Description .................................................................................................... 9 9. Surrounding Land Uses and Setting ...........................................................................20 10. Other Public Agencies Whose Approval May Be Required ...........................................23 11. Tribal Consultation ...................................................................................................23 Environmental Factors Potentially Affected..................................................................................24 Determination............................................................................................................................25 Environmental Checklist .............................................................................................................27 1 Aesthetics ................................................................................................................27 2 Agriculture and Forestry Resources ...........................................................................33 3 Air Quality................................................................................................................35 4 Biological Resources .................................................................................................45 5 Cultural Resources....................................................................................................63 6 Energy .....................................................................................................................67 7 Geology and Soils .....................................................................................................69 8 Greenhouse Gas Emissions .......................................................................................75 9 Hazards and Hazardous Materials..............................................................................85 10 Hydrology and Water Quality ....................................................................................89 11 Land Use and Planning ..............................................................................................93 12 Mineral Resources ....................................................................................................97 13 Noise .......................................................................................................................99 14 Population and Housing .......................................................................................... 109 15 Public Services........................................................................................................ 111 16 Recreation ............................................................................................................. 115 17 Transportation ....................................................................................................... 117 18 Tribal Cultural Resources ........................................................................................ 121 19 Utilities and Service Systems ................................................................................... 125 20 Wildfire ................................................................................................................. 129 21 Mandatory Findings of Significance ......................................................................... 133 Final Initial Study – Mitigated Negative Declaration SCH#2021050004 i Conejo Recreation and Park District Conejo Community Park and Center Project References ............................................................................................................................... 137 Bibliography...................................................................................................................... 137 List of Preparers ................................................................................................................ 141 Tables Table 1 Existing and Proposed Project Operational Components .............................................20 Table 2 Health Effects Associated with Non-Attainment Criteria Pollutants .............................36 Table 3 Estimated Maximum Daily Construction Emissions (lbs/day) .......................................39 Table 4 Estimated Maximum Daily Operational Emissions (lbs/day) ........................................40 Table 5 Plant Species Observed on the Project Site ................................................................48 Table 6 SCE Energy Intensity Factors .....................................................................................78 Table 7 Estimated Construction GHG Emissions .....................................................................81 Table 8 Combined Annual GHG Emissions ..............................................................................81 Table 9 General Plan Consistency for GHG Emissions..............................................................83 Table 10 Project Consistency Analysis with General Plan Goals and Policies...............................94 Table 11 Project Site Sound Level Monitoring ........................................................................ 103 Table 12 City of Thousand Oaks Stationary Noise Standards ................................................... 103 Table 13 Vibration Levels Measured during Construction Activities ......................................... 106 Table 14 Net Change in Total VMT with Project ..................................................................... 118 Figures Figure 1 Project Regional Location........................................................................................... 2 Figure 2 Project Site in Neighborhood Context ......................................................................... 3 Figure 3 Photographs of the Project Site .................................................................................. 4 Figure 4 Photographs of the Project Site .................................................................................. 5 Figure 5 Photographs of the Project Site .................................................................................. 6 Figure 6 Photographs of the Project Site .................................................................................. 7 Figure 7 Photographs of the Project Site .................................................................................. 8 Figure 8 Conceptual Plan West Side of Park ............................................................................10 Figure 9 Conceptual Plan East Side of Park ..............................................................................11 Figure 10 Community Center Plan View, First Floor ...................................................................13 Figure 11 Community Center Plan View, Second Level ...............................................................14 Figure 12 Community Center Conceptual Elevation ...................................................................15 Figure 13 Enlarged Parking Configuration Conceptual Plan ........................................................18 Figure 14 Accessory Buildings ..................................................................................................19 Figure 15 Photographs of Surrounding Land Uses......................................................................21 Figure 16 Photographs of Surrounding Land Uses (Botanic Garden) ...........................................22 Figure 17 View Northeast