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Main Document.Pdf RESOURCE CONSERVATION DISTRICT OF TEHAMA COUNTY PONDEROSA WAY ROAD ASSESSMENT AND SEDIMENT REDUCTION PLAN PHASE I AND PHASE II IMPLEMENTATION PROJECTS PROGRAMATIC INITIAL STUDY/MITIGATED NEGATIVE DECLARATION RESOURCE CONSERVATION DISTRICT OF TEHAMA COUNTY PONDEROSA WAY ROAD ASSEMENT AND SEDMEINT REDUCTION PLAN PHASE I AND PHASE II IMPLEMENTATION PROJECTS PROGRAMATIC INITIAL STUDY/MITIGATED NEGATIVE DECLARATION December 2017 Prepared by: 2 Sutter Street, Suite D Red Bluff, CA 96080 (530) 527-3013 The Programmatic Initial Study/Mitigated Negative Declaration has been Prepared Pursuant to The California Environmental Quality Act of 1970 State of California Funding Provided by the State Water Resources Control Board RESOURCE CONSERVATION DISTRICT OF TEHAMA COUNTY PONDEROSA WAY ROAD ASSESSMENT AND SEDIMENT REDUCTION PLAN PHASE I AND PHASE II IMPLEMENTATION PROJECTS PROGRAMATIC INITIAL STUDY/MITIGATED NEGATIVE DECLARATION TABLE OF CONTENTS I. MITIGATED NEGATIVE DECLARATION AND ENVIRONEMENTAL CHECKLIST FORM ................................................................................................................................................ 8 Purpose of Proposed Work and Project Summary .......................................................................................... 9 Project Objectives .......................................................................................................................................... 11 Examples of Conditions Along Ponderosa Way Within the Phase I and Phase II Project Area ................. 16 Detailed Scope of Work ................................................................................................................................. 26 Recommended Treatments ....................................................................................................................... 26 Site-Specific Treatments .................................................................................................................... 27 Road Surface Treatments .................................................................................................................. 28 Road Decommissioning .................................................................................................................... 30 Declaration of No Significant Impact ....................................................................................................... 31 Geographic Scope of the Project Area ...................................................................................................... 34 General Description of the Phase I and Phase II Project Area ............................................................... 34 Legal Description of the Phase I and Phase II Project Area ................................................................... 35 General Plan Designation .......................................................................................................................... 35 Zoning .......................................................................................................................................................... 35 Regulatory Review/Approval Process and Permitting Mechanisms .................................................... 35 Decisions Subject to the California Environmental Quality Act (CEQA) ........................................... 38 Project Notification to Regulatory Agencies ............................................................................................ 39 Environmental Protection, Best Management Practices and Mitigation Measures ........................... 40 Best Management Practices Developed and Selected for the Ponderosa Way Road Assessment and Sediment Reduction Plan Phase I and Phase II Implementation Projects .......................................... 41 BMP Selection Criteria .................................................................................................................................. 41 Scheduling .............................................................................................................................................. 42 2 RESOURCE CONSERVATION DISTRICT OF TEHAMA COUNTY PONDEROSA WAY ROAD ASSESSMENT AND SEDIMENT REDUCTION PLAN PHASE I AND PHASE II IMPLEMENTATION PROJECTS PROGRAMATIC INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Phased Construction ............................................................................................................................... 43 Topsoil Reuse ........................................................................................................................................ 44 Coffer Dams .......................................................................................................................................... 45 Temporary Stream Diversions .............................................................................................................. 47 Dewatering ............................................................................................................................................ 51 Protection and Preservation of Existing Vegetation ............................................................................. 53 Mulching ................................................................................................................................................ 55 Wind Erosion and Dust Control ............................................................................................................ 57 Riprap/Vegetated Rock Armor ............................................................................................................. 58 Revegetation .......................................................................................................................................... 59 Live Fascines ......................................................................................................................................... 60 Rootwad Revetment .............................................................................................................................. 62 Log Cored Willow Baffles .................................................................................................................... 63 Fiber Rolls ............................................................................................................................................. 64 Silt Fences ............................................................................................................................................. 66 Temporary Stream Crossing ................................................................................................................. 69 Stockpile Management .......................................................................................................................... 70 General Site and Materials Management Practices .............................................................................. 71 Demobilization/Site Restoration ............................................................................................................ 74 Mitigation Measures ................................................................................................................................... 74 Monitoring Report Requirements .............................................................................................................. 74 II. INITIAL STUDY/MITIGATED NEGATIVE DECLARATION AND ENVIRONMENTAL CHECKLIST ................................................................................................................................. 76 Environmental Factors Potentially Affected ........................................................................................... 77 Lead Agency Determination ...................................................................................................................... 77 Initial Study/Environmental Checklist ...................................................................................................... 79 3 RESOURCE CONSERVATION DISTRICT OF TEHAMA COUNTY PONDEROSA WAY ROAD ASSESSMENT AND SEDIMENT REDUCTION PLAN PHASE I AND PHASE II IMPLEMENTATION PROJECTS PROGRAMATIC INITIAL STUDY/MITIGATED NEGATIVE DECLARATION Environmental Factors Potentially Affected ............................................................................................. 82 Lead Agency Determination ....................................................................................................................... 83 Analysis of Potential Environmental Impacts .......................................................................................... 84 Aesthetics .............................................................................................................................................. 84 Agriculture and Forest Resources ........................................................................................................ 91 Air Quality ............................................................................................................................................ 94 Biological Resources ............................................................................................................................ 98 Cultural Resources .............................................................................................................................. 106 Geology and Soils ..............................................................................................................................
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