IP 19-044 Irvine Ranch Open Space 2014 Donation Interim Recreation
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Irvine Ranch Open Space 2014 Donation Interim Recreation and Resource Management Plan Project IP 19-044 Initial Study/Mitigated Negative Declaration September 5, 2019 Report Date Prepared for: County of Orange Orange County Parks Planning and Design Division 13042 Old Myford Road Irvine, California 92602 Prepared by: Stantec Consulting Services Inc. 290 Conejo Ridge Avenue Thousand Oaks, California 91361 IRVINE RANCH OPEN SPACE 2014 DONATION INTERIM RECREATION AND RESOURCE MANAGEMENT PLAN PROJECT DRAFT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Table of Contents Table of Contents ABBREVIATIONS ...................................................................................................................... IV 1.0 INTRODUCTION ............................................................................................................ 1.1 1.1 OVERVIEW .................................................................................................................... 1.1 1.2 PURPOSE ...................................................................................................................... 1.1 1.3 PROJECT TITLE ............................................................................................................ 1.1 1.4 LEAD AGENCY .............................................................................................................. 1.2 1.5 PROPONENT ................................................................................................................ 1.2 1.6 AGENCIES INVOLVED AND PERMIT, CONSULTATION, AND ENVIRONMENTAL REVIEW REQUIREMENTS ........................................................... 1.2 1.7 INTENDED USES OF THE INITIAL STUDY/MITIGATED NEGATIVE DECLARATION .............................................................................................................. 1.3 1.8 ORGANIZATION OF THE IS/MND ................................................................................ 1.3 2.0 PROJECT DESCRIPTION ............................................................................................. 2.1 2.1 PROJECT LOCATION ................................................................................................... 2.2 2.1.1 East Orange I ............................................................................................... 2.2 2.1.2 East Orange II .............................................................................................. 2.3 2.1.3 Mountain Park .............................................................................................. 2.4 2.2 GENERAL PLAN LAND USE DESIGNATION ............................................................... 2.6 2.2.1 East Orange I and II ..................................................................................... 2.6 2.2.2 Mountain Park .............................................................................................. 2.6 2.3 ZONING ......................................................................................................................... 2.6 2.4 SURROUNDING LAND USES AND SETTING .............................................................. 2.7 2.4.1 East Orange I and II ..................................................................................... 2.7 2.4.2 Mountain Park .............................................................................................. 2.7 2.5 PROJECT ACTIVITIES AND SCHEDULE ..................................................................... 2.7 2.5.1 Construction ................................................................................................. 2.8 2.5.2 Operations and Maintenance ....................................................................... 2.8 3.0 ENVIRONMENTAL IMPACT ANALYSIS ...................................................................... 3.1 3.1 AESTHETICS ................................................................................................................. 3.2 3.1.1 Setting .......................................................................................................... 3.2 3.1.2 Impact Analysis ............................................................................................ 3.2 3.2 AGRICULTURE AND FORESTRY RESOURCES......................................................... 3.4 3.2.1 Setting .......................................................................................................... 3.4 3.2.2 Impact Analysis ............................................................................................ 3.4 3.3 AIR QUALITY ................................................................................................................. 3.6 3.3.1 Setting .......................................................................................................... 3.6 3.3.2 Impact Analysis ............................................................................................ 3.8 3.4 BIOLOGICAL RESOURCES ........................................................................................ 3.12 3.4.1 Setting ........................................................................................................ 3.12 3.4.2 Impact Analysis .......................................................................................... 3.13 3.5 CULTURAL RESOURCES .......................................................................................... 3.30 3.5.1 Setting ........................................................................................................ 3.30 3.5.2 Impact Analysis .......................................................................................... 3.30 i IRVINE RANCH OPEN SPACE 2014 DONATION INTERIM RECREATION AND RESOURCE MANAGEMENT PLAN PROJECT DRAFT INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Table of Contents 3.6 ENERGY ...................................................................................................................... 3.33 3.6.1 Setting ........................................................................................................ 3.33 3.6.2 Impact Analysis .......................................................................................... 3.33 3.7 GEOLOGY AND SOILS ............................................................................................... 3.35 3.7.1 Setting ........................................................................................................ 3.35 3.7.2 Impact Analysis .......................................................................................... 3.35 3.8 GREENHOUSE GAS ................................................................................................... 3.40 3.8.1 Setting ........................................................................................................ 3.40 3.8.2 Impact Analysis .......................................................................................... 3.41 3.9 HAZARDS AND HAZARDOUS MATERIALS............................................................... 3.44 3.9.1 Setting ........................................................................................................ 3.44 3.9.2 Impact Analysis .......................................................................................... 3.44 3.10 HYDROLOGY AND WATER QUALITY ....................................................................... 3.47 3.10.1 Setting ........................................................................................................ 3.47 3.10.2 Impact Analysis .......................................................................................... 3.47 3.11 LAND USE AND PLANNING ....................................................................................... 3.54 3.11.1 Setting ........................................................................................................ 3.54 3.11.2 Impact Analysis .......................................................................................... 3.55 3.12 MINERAL RESOURCES ............................................................................................. 3.57 3.12.1 Setting ........................................................................................................ 3.57 3.12.2 Impact Analysis .......................................................................................... 3.57 3.13 NOISE .......................................................................................................................... 3.60 3.13.1 Setting ........................................................................................................ 3.60 3.13.2 Impact Analysis .......................................................................................... 3.61 3.14 POPULATION AND HOUSING .................................................................................... 3.63 3.14.1 Setting ........................................................................................................ 3.63 3.14.2 Impact Analysis .......................................................................................... 3.63 3.15 PUBLIC SERVICES ..................................................................................................... 3.64 3.15.1 Setting ........................................................................................................ 3.64 3.15.2 Impact Analysis .......................................................................................... 3.64 3.16 RECREATION .............................................................................................................