LSA ASSOCIATES, INC. CITY OF MONROVIA HILLSIDE WILDERNESS PRESERVE AND HILLSIDE RECREATION AREA AUGUST 2008 DRAFT RESOURCE MANAGEMENT PLAN CITY OF MONROVIA, CALIFORNIA APPENDIX C EXISTING CONDITIONS P:\CNV0601\Management Plan\Final Management Plan- August 2008\Appendices\AppendixC.doc (08/07/08) C-1 LSA ASSOCIATES, INC. CITY OF MONROVIA HILLSIDE WILDERNESS PRESERVE AND HILLSIDE RECREATION AREA AUGUST 2008 DRAFT RESOURCE MANAGEMENT PLAN CITY OF MONROVIA, CALIFORNIA APPENDIX C EXISTING CONDITIONS TABLE OF CONTENTS 1.0 LAND USE .................................................................................................................................C-5 1.1 GEOGRAPHICAL SETTING..........................................................................................C-5 1.2 LAND USE – OWNERSHIP, JURISDICTION AND EASEMENTS.............................C-5 1.2.1 United States Forest Service................................................................................C-5 1.2.2 County of Los Angeles........................................................................................C-6 1.2.3 City of Arcadia ....................................................................................................C-6 1.2.4 Lower Clamshell Motorway................................................................................C-6 1.2.5 Private In-Holdings..............................................................................................C-7 1.3 URBAN WILDERNESS INTERFACE ...........................................................................C-7 2.0 PHYSICAL RESOURCES .........................................................................................................C-9 2.1 PHYSICAL SETTING .....................................................................................................C-9 2.2 GEOLOGY AND SOILS................................................................................................C-10 2.2.1 Geologic Setting ................................................................................................C-10 2.2.2 Soils ...................................................................................................................C-10 2.2.3 Geologic Hazards ..............................................................................................C-11 2.3 HYDROLOGY AND WATER SUPPLY.......................................................................C-12 2.3.1 Hydrologic Unit.................................................................................................C-12 2.3.2 Municipal Water Distribution System...............................................................C-13 2.4 CLIMATE.......................................................................................................................C-14 2.5 AESTHETIC RESOURCES...........................................................................................C-14 2.5.1 Vista Points/Panoramic Views ..........................................................................C-14 2.5.2 Intimate, Secluded Spaces .................................................................................C-14 2.5.3 Built Features within the Project Area...............................................................C-15 3.0 BIOLOGICAL RESOURCES...................................................................................................C-16 3.1 VEGETATION DYNAMICS.........................................................................................C-16 3.2 VEGETATION COMMUNITIES..................................................................................C-16 3.2.1 Scrub..................................................................................................................C-17 3.2.2 Chaparral ...........................................................................................................C-17 3.2.3 Grassland ...........................................................................................................C-20 3.2.4 Riparian .............................................................................................................C-20 3.2.5 Southern Coast Live Oak Woodland .................................................................C-21 3.2.6 Developed and/or Disturbed Areas....................................................................C-21 3.2.7 Ornamental Landscaping...................................................................................C-21 3.3 EXOTIC PLANT SPECIES............................................................................................C-22 3.4 WILDLIFE HABITATS.................................................................................................C-24 3.4.1 Scrub..................................................................................................................C-25 3.4.2 Chaparral ...........................................................................................................C-26 3.4.3 Grassland ...........................................................................................................C-26 3.4.4 Southern Coast Live Oak Woodland .................................................................C-27 3.4.5 Riparian .............................................................................................................C-27 P:\CNV0601\Management Plan\Final Management Plan- August 2008\Appendices\AppendixC.doc (08/07/08) C-2 LSA ASSOCIATES, INC. CITY OF MONROVIA HILLSIDE WILDERNESS PRESERVE AND HILLSIDE RECREATION AREA AUGUST 2008 DRAFT RESOURCE MANAGEMENT PLAN CITY OF MONROVIA, CALIFORNIA 3.5 GENERAL WILDLIFE ..................................................................................................C-28 3.5.1 Birds ..................................................................................................................C-28 3.5.2 Reptiles and Amphibians...................................................................................C-29 3.5.3 Mammals ...........................................................................................................C-29 3.6 WILDLIFE MOVEMENT CORRIDOR AND HABITAT FRAGMENTATION.........C-30 3.7 THREATENED, RARE, OR ENDANGERED SPECIES .............................................C-30 3.7.1 Plant Species......................................................................................................C-31 3.7.2 Wildlife Species.................................................................................................C-33 3.7.3 Sensitive Habitats ..............................................................................................C-34 4.0 CULTURAL RESOURCES......................................................................................................C-35 4.1 CULTURAL SETTING..................................................................................................C-35 4.1.1 Cultural Resources Defined...............................................................................C-35 4.1.2 Prehistory – An Overview of the Region ..........................................................C-35 4.1.3 Historical Land Use – An Overview of the Region...........................................C-37 4.2 HISTORY OF THE CITY OF MONROVIA .................................................................C-39 4.2.1 Establishment of the City ..................................................................................C-40 4.2.2 The Hillside Wilderness Preserve and Hillside Recreation Area ......................C-41 4.3 EXISTING ARCHAEOLOGICAL RESOURCES ........................................................C-42 4.3.1 Records Search ..................................................................................................C-42 4.3.2 Resources Identified ..........................................................................................C-42 4.4 PALEONTOLOGY ........................................................................................................C-44 5.0 EDUCATION PROGRAMS.....................................................................................................C-46 5.1 OUTDOOR EDUCATION PROGRAMS......................................................................C-46 5.1.1 Youth School Curriculum Programs .................................................................C-46 5.2 GUIDED HIKES ............................................................................................................C-46 5.2.1 Interpretive Hikes ..............................................................................................C-46 5.2.2 Special Hike Events...........................................................................................C-46 5.3 CONSERVATION PROGRAMS...................................................................................C-47 5.3.1 Hillside Wilderness Preserve Milk Vetch Preservation Program......................C-47 5.3.2 Hillside Recreation Area Creek Restoration Program.......................................C-47 5.4 STAFFING .....................................................................................................................C-47 5.4.1 Recreation Staffing............................................................................................C-47 5.4.2 Police Assistance ...............................................................................................C-48 5.5 VOLUNTEER PROGRAM............................................................................................C-48 5.5.1 Volunteer Training and Program Activities ......................................................C-49