CITY of CARPINTERIA CREEKS PRESERVATION PROGRAM FINAL DOCUMENT Volume One
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CITY OF CARPINTERIA CREEKS PRESERVATION PROGRAM FINAL DOCUMENT Volume One September 2005 City of Carpinteria Creeks Preservation Program THIS PAGE INTENTIONALLY LEFT BLANK C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Blank Page.doc Acknowledgements The Carpinteria Creeks Preservation Program (Program) was developed and adopted by the City of Carpinteria with the assistance of Padre Associates, Inc. A grant award from the California Coastal Commission LCP Grant Program provided the majority of the funding for the Program. The City funded the remainder of the project. The following people were instrumental in the development and adoption of the Program. City Council Gary Nielsen, Mayor Richard Weinberg, Vice Mayor Donna Jordan Michael Ledbetter J. Bradley Stein City Planning Commission Robert Ooley, Chair Glenn LaFevers Penny Bloodhart Chuck McQuany David Allen City Staff David Durflinger, City Manager Kevin Silk, Assistant to the City Manager Jackie Campbell, Community Development Director Paul Kermoyan, Former Community Development Director Steve Wagner, Public Works Director Vince Semonsen, Consulting Biologist Padre Associates, Inc. Simon Poulter, Project Manager/Principal Matt Ingamells, Biologist Brian Dugas, Biologist Jeff Brinkman, Biologist Jennifer Carnine, Environmental Specialist Paden Voget, Environmental Specialist Scott Robinson, Technical Review Pat McClure, Graphics Specialist C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Final Acknowledgements 8-22-05.doc City of Carpinteria Creeks Preservation Program THIS PAGE INTENTIONALLY LEFT BLANK C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Blank Page.doc City of Carpinteria Creeks Preservation Program Table of Contents TABLE OF CONTENTS Page 1.0 INTRODUCTION............................................................................................... 1-1 2.0 SETTING........................................................................................................... 2-1 2.1 Introduction............................................................................................ 2-1 2.2 Geology, Hydrology, and Geomorphology ............................................ 2-1 2.2.1 Geology ..................................................................................... 2-1 2.2.2 Hydrology................................................................................... 2-2 2.2.3 Geomorphology ......................................................................... 2-7 2.2.4 Human Alterations to Local Creeks and Watersheds................ 2-8 2.2.5 Study Watersheds..................................................................... 2-19 2.2.6 Flood Control Regulations ......................................................... 2-26 2.3 Water Quality......................................................................................... 2-31 2.3.1 Introduction................................................................................ 2-31 2.3.2 Local Creek Water Quality......................................................... 2-32 2.3.3 Ground Water Quality................................................................ 2-42 2.3.4 Existing Water Quality Regulations ........................................... 2-43 2.4 Biological Resources............................................................................. 2-52 2.4.1 Introduction................................................................................ 2-52 2.4.2 Carpinteria Creek....................................................................... 2-53 2.4.3 Santa Monica and Franklin Creeks, and Carpinteria Salt Marsh 2-68 2.4.4 Lagunitas Creek......................................................................... 2-70 2.4.5 Local Creeks as Wildlife Movement Corridors........................... 2-73 2.4.6 Sensitive Biological Resources (Habitats and Species) ............ 2-73 2.5 Watershed Land Uses........................................................................... 2-81 2.5.1 Introduction................................................................................ 2-81 2.5.2 Carpinteria Creek Watershed .................................................... 2-81 2.5.3 Santa Monica Creek Watershed................................................ 2-82 2.5.4 Franklin Creek Watershed......................................................... 2-83 2.5.5 Lagunitas Creek Watershed ...................................................... 2-83 2.5.6 Applicable City Regulations....................................................... 2-84 2.6 References Cited................................................................................... 2-84 3.0 CREEKS PRESERVATION PROGRAM REGULATIONS................................ 3-1 3.1 Program Goals ...................................................................................... 3-1 3.2 General Plan/Local Coastal Plan and Carpinteria Municipal Code Regulations ........................................................................................... 3-2 3.2.1 General Plan/Local Coastal Plan............................................... 3-2 3.2.2 Carpinteria Municipal Code ....................................................... 3-18 C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Final Table of Contents 8-22-05.doc - i - City of Carpinteria Creeks Preservation Program Table of Contents TABLE OF CONTENTS (Continued) Page 3.3 Program Regulations............................................................................. 3-19 3.3.1 Geomorphology, Hydrology, and Water Quality ........................ 3-19 3.3.2 Biological Resources ................................................................. 3-20 4.0 PROGRAM IMPLEMENTATION....................................................................... 4-1 FIGURES 1-1 Regional Map.................................................................................................... 1-3 1-2 Watershed Map................................................................................................. 1-5 2-1 Geologic Map.................................................................................................... 2-3 2-2 Mean Daily Stream Flow, Carpinteria Creek Gauging Station .......................... 2-5 2-3 Peak Stream Flows by Year, Carpinteria Creek ............................................... 2-6 2-4 Floodplain Map.................................................................................................. 2-9 2-5 Photographs of Local Creeks............................................................................ 2-11 2-6 Photographs of Local Creeks............................................................................ 2-13 2-7 Photographs of Local Creeks............................................................................ 2-15 2-8 Photographs of Local Creeks............................................................................ 2-17 2-9 Soils Map.......................................................................................................... 2-21 2-10 Peak Stream Flows by Year, Franklin Creek .................................................... 2-24 2-11 Peak Stream Flows by Year, Santa Monica Creek ........................................... 2-25 2-12 Number of Aquatic Insect Genera, Carpinteria Creek Study Reaches ............. 2-64 2-13 Habitat Assessment Scores, Carpinteria Creek................................................ 2-68 2-14 Aquatic Insect Diversity vs. Stream Water Conductivity.................................... 2-68 3-1 Environmentally Sensitive Habitat Area (ESHA) Overlay Map.......................... 3-16 TABLES 2-1 Water Quality Monitoring Results at Local Creek Study Reaches .................... 2-35 2-2 Beneficial Uses, Local Water Bodies ................................................................ 2-49 2-3 Types and Sources of Impairment, Local Water Bodies ................................... 2-51 2-4 Inventory of Benthic Macroinvertebrates from Carpinteria Creek ..................... 2-62 2-5 Sensitive Plant Species Occurring in or near Local Creeks.............................. 2-76 2-6 Sensitive Animal Species Occurring in or near Local Creeks ........................... 2-77 4-1 Program Implementation Schedule................................................................... 4-2 C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Final Table of Contents 8-22-05.doc - ii - City of Carpinteria Creeks Preservation Program Table of Contents TABLE OF CONTENTS (Continued) VOLUME TWO - APPENDICES APPENDIX A: STREAM SURVEY METHODOLOGY AND FIELD AND LABORATORY DATA FORMS APPENDIX B: DRAFT STORM WATER MANAGEMENT PLAN APPENDIX C: LISTS OF EXOTIC PEST PLANTS APPENDIX D: ACRONYMS, ABBREVIATIONS, AND DEFINITIONS APPENDIX E: CITY OF CARPINTERIA WATER QUALITY PROTECTION REGULATIONS C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Final Table of Contents 8-22-05.doc - iii - City of Carpinteria Creeks Preservation Program THIS PAGE INTENTIONALLY LEFT BLANK C:\Documents and Settings\Simon Poulter.SIMON_WS\Desktop\Carpinteria Creeks Program Update\Final Creeks Program\Blank Page.doc City of Carpinteria Creeks Preservation Program 1.0 Introduction 1.0 INTRODUCTION