Recirculated Draft Environmental Impact Report RIMFOREST STORM
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Recirculated Draft Environmental Impact Report for the RIMFOREST STORM DRAIN PROJECT Prepared by: County of San Bernardino Department of Public Works Flood Control District Technical Assistance Provided By September 2016 Recirculated Draft Environmental Impact Report for the Rimforest Storm Drain Project Lead Agency: San Bernardino County Flood Control District 825 East Third Street San Bernardino, California 92415 Technical Assistance Provided by: Aspen Environmental Group 5020 Chesebro Road, Suite 200 Agoura Hills, California 91301 September 2016 Rimforest Storm Drain Project TABLE OF CONTENTS Table of Contents Executive Summary ES.1 Summary of Proposed Project .............................................................................................................................................. ES-2 ES.2 Environmental Review Process............................................................................................................................................. ES-6 ES.3 Summary of Impacts and Mitigation Measures ...................................................................................................... ES-6 ES.3.1 Impacts Not Further Considered in this EIR ............................................................................................. ES-7 ES.3.2 Growth Inducing-Effects .......................................................................................................................................... ES-9 ES.3.3 Irreversible Commitment of Resources .................................................................................................... ES-10 ES.3.4 Irreversible Damage from Environmental Accidents ..................................................................... ES-10 ES.4 Summary of Alternatives Analysis ................................................................................................................................... ES-10 ES.5 Areas of Controversy and Issues to be Resolved ................................................................................................ ES-11 1. Introduction 1.1 Purpose of the EIR ............................................................................................................................................................................. 1-1 1.2 Public Noticing Requirements ................................................................................................................................................. 1-1 1.3 Public Review Period Requirements .................................................................................................................................. 1-1 1.4 Recirculated Draft EIR Environmental Review Process ......................................................... 1-2 1.5 Decision-Making Process ...................................................................................................... 1-2 1.6 Recirculated Draft EIR Organization...................................................................................... 1-2 2. Project Description 2.1 Project Overview ................................................................................................................................................................................ 2-1 2.2 Environmental Setting ................................................................................................................................................................... 2-1 2.3 Proposed Project ................................................................................................................................................................................ 2-3 2.3.1 Construction Plan............................................................................................................................................................. 2-6 2.3.2 Operation and Maintenance ............................................................................................................................... 2-11 2.4 Required Permits and Approvals ........................................................................................................................................ 2-13 2.5 Environmental Commitments .............................................................................................................................................. 2-13 3. Environmental Setting, Analysis, and Mitigation Measures 3.2 Air Quality and Greenhouse Gases ................................................................................ 3.2-1 3.2.1 Environmental Setting ...................................................................................................... 3.2-1 3.2.2 Applicable Regulations, Plans, and Standards .................................................................. 3.2-5 3.2.3 Environmental Impacts and Mitigation Measures .........................................................3.2-12 3.2.4 Level of Significance After Mitigation ............................................................................3.2-23 3.3 Biological Resources ........................................................................................................ 3.3-1 3.3.1 Environmental Setting .............................................................................................................................................. 3.3-1 3.3.2 Applicable Regulations, Plans, and Standards ......................................................................................... 3.3-17 3.3.3 Environmental Impacts and Mitigation Measures................................................................................ 3.3-20 3.3.4 Level of Significance After Mitigation ........................................................................................................... 3.3-36 3.4 Cultural Resources ........................................................................................................... 3.4-1 3.4.1 Environmental Setting .............................................................................................................................................. 3.4-1 3.4.2 Applicable Regulations, Plans, and Standards ......................................................................................... 3.4-13 3.4.3 Environmental Impacts and Mitigation Measures................................................................................ 3.4-15 3.4.4 Level of Significance After Mitigation ........................................................................................................... 3.4-18 3.6 Hydrology and Water Quality ......................................................................................... 3.6-1 3.6.1 Environmental Setting .............................................................................................................................................. 3.6-1 3.6.2 Applicable Regulations, Plans, and Standards ............................................................................................ 3.6-5 September 2016 i Recirculated Draft EIR Rimforest Storm Drain Project TABLE OF CONTENTS 3.6.3 Environmental Impacts and Mitigation Measures................................................................................... 3.6-7 3.6.4 Level of Significance After Mitigation ........................................................................................................... 3.6-13 5. Cumulative Effects 5.1 CEQA Requirements ........................................................................................................................................................................ 5-1 5.2 Cumulative Impact Analysis Methodology .................................................................................................................... 5-2 5.3 Projects Considered in the Cumulative Impact Analysis .................................................................................... 5-2 5.4 Cumulative Impact Analysis ...................................................................................................................................................... 5-4 6. Other CEQA Considerations 6.1 Growth-Inducing Effects .............................................................................................................................................................. 6-1 6.2 Significant Irreversible Environmental Changes ....................................................................................................... 6-2 6.3 Significant Effects that Cannot be Avoided .................................................................................................................. 6-3 7. References ......................................................................................................................... 7-1 Tables Table ES-1 Summary of Impacts and Mitigation Measures ........................................................................................... ES-12 Table 2-1 Construction – Materials Quantities .......................................................................................................................... 2-7 Table 2-2 Construction Off-Road Equipment – Sediment Basin Construction ................................................. 2-8 Table 2-3 Construction Off-Road Equipment – SH 18 Drain Construction .......................................................... 2-9 Table 2-4 Construction Off-Road Equipment – Pine Avenue Drain Construction ......................................... 2-9 Table 2-5 Environmental Commitments .....................................................................................................................................