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Phase I Report PHASE I REPORT June 2005 Calleguas Creek Watershed Integrated Regional Water Management Plan This Integrated Regional Water Management Plan (IRWMP) is comprised of two volumes: Volume I: Calleguas Creek Watershed Management Plan Phase I Report Volume II: Calleguas Creek Watershed Management Plan Addendum Volume I is provided as a separate document and Volume II is attached. Volume II is intended to bridge the gap between the Calleguas Creek Watershed Management Plan and the requirements for IRWMPs found in the Integrated Regional Water Management (IRWM) Grant Program Guidelines (Guidelines). The two volumes, together, are intended to be a functionally- equivalent IRWMP document. The Guidelines were prepared by the California Department of Water Resources (DWR) and the State Water Resources Control Board (SWRCB) in November 2004 to provide guidance on the process and criteria that DWR and SWRCB will use to evaluate grant applications under the IRWM Grant Program. The Grant program resulted from the passage of Proposition 50, the Water Security, Clean Drinking Water, Coastal and Beach Protection Act of 2002. IRWM is discussed in Chapter 8 of Proposition 50. p:\05\0587108_cmwd_irwmp\attachments\attach3_irwmp\camrosa_only_preface.doc PHASE I REPORT June 2005 Table of Contents Table of Contents........................................................................................................................... i List of Tables................................................................................................................................ iv List of Figures............................................................................................................................... iv List of Appendices........................................................................................................................ iv List of Abbreviations and Acronyms..............................................................................................v Section 1: Introduction .................................................................................. 1 1.1 Participating Entities...............................................................................1 1.1.1 Regional Lead Agency ...............................................................1 1.1.2 Other Participating Agencies......................................................3 1.1.3 Stakeholders...............................................................................5 1.1.4 State and Federal Agencies .......................................................6 1.2 Objectives ..............................................................................................6 1.2.1 Objectives ..................................................................................8 1.2.2 Relation to Statewide Priorities...................................................8 1.2.2.1 Reduce the Conflict Between Water Users or Resolve Water Rights Disputes, Including Interregional Water Rights Issues.............................8 1.2.2.2 Implementation of Total Maximum Daily Loads That Are Established or Under Development.............................................................9 1.2.2.3 Implementation of Regional Water Quality Control Board Watershed Management Initiative Chapters, Plans, and Policies.....................9 1.2.2.4 Meet Delta Water Quality Objectives........................9 1.2.2.5 Implementation of Recommendations of the Floodplain Management Task Force, Desalination Task Force, or Recycling Task Force.........................................................................9 1.2.2.6 Address Environmental Justice Concerns ..............10 1.2.2.7 Assist In Achieving One or More Goals of the CALFED Bay-Delta Program ..................................10 1.2.3 Relation to Regional Priorities ..................................................10 1.3 Relation to Local Planning....................................................................11 1.4 Disadvantaged Communities ...............................................................11 1.5 Potential Obstacles ..............................................................................12 Section 2: Region Description ..................................................................... 14 2.1 Region Boundaries...............................................................................14 2.2 Water Related Infrastructure ................................................................16 2.3 Land Use..............................................................................................18 Calleguas Creek Watershed Management Plan Addendum i g:\eeg\calleguasirwmp\irwmp_r6_060905_cmwd.doc Table of Contents (cont'd) 2.4 Quantity and Quality of Water Resources in Region............................18 2.4.1 Water Quantity..........................................................................18 2.4.2 Water Quality............................................................................19 2.5 Water Supplies.....................................................................................21 2.5.1 Imported Water Supplies..........................................................21 2.5.2 Local Supplies ..........................................................................22 2.6 Water Demand .....................................................................................23 2.7 Environmental Resources ....................................................................23 2.7.1 Calleguas Creek and its Tributaries .........................................23 2.7.2 Mugu Lagoon............................................................................23 2.8 Social, Cultural, Economic Conditions and Trends ..............................24 Section 3: Elements of the Plan .................................................................. 25 3.1 Water Management Strategies.............................................................25 3.2 Integration ............................................................................................31 3.3 Regional Priorities ................................................................................31 3.4 Implementation.....................................................................................32 3.4.1 Project 1. Calleguas Regional Salinity Management Project (Brineline).....................................................................32 3.4.1.1 Project Description..................................................32 3.4.1.2 Relationship to Water Management Strategies................................................................33 3.4.1.3 Status and Schedule...............................................34 3.4.1.4 Cost ........................................................................34 3.4.1.5 Integration With Other Projects...............................34 3.4.2 Project 2. Renewable Water Resource Management Program for the Southern Reaches of the Watershed .............35 3.4.2.1 Project Description..................................................35 3.4.2.2 Relationship to Water Management Strategies................................................................38 3.4.2.3 Status and Schedule...............................................39 3.4.2.4 Cost ........................................................................40 3.4.2.5 Integration With Other Projects...............................40 3.4.3 Project 3. Camarillo Groundwater Treatment Facility...............40 3.4.3.1 Project Description..................................................40 3.4.3.2 Relationship to Water Management Strategies................................................................41 3.4.3.3 Status and Schedule...............................................42 3.4.3.4 Cost ........................................................................42 3.4.3.5 Integration With Other Projects...............................42 3.4.4 Project 4. South Las Posas Basin Regional Desalter...............42 3.4.4.1 Project Description..................................................42 3.4.4.2 Relationship to Water Management Strategies................................................................42 3.4.4.3 Status and Schedule...............................................43 3.4.4.4 Cost ........................................................................43 Calleguas Creek Watershed Management Plan Addendum ii g:\eeg\calleguasirwmp\irwmp_r6_060905_cmwd.doc Table of Contents (cont'd) 3.4.4.5 Integration With Other Projects...............................43 3.4.5 Project 5. Somis Desalter.........................................................43 3.4.5.1 Project Description..................................................43 3.4.5.2 Relationship to Water Management Strategies................................................................44 3.4.5.3 Status and Schedule...............................................44 3.4.5.4 Cost ........................................................................45 3.4.5.5 Integration With Other Projects...............................45 3.4.6 Project 6. West Simi Desalter...................................................45 3.4.6.1 Project Description..................................................45 3.4.6.2 Relationship to Water Management Strategies................................................................45 3.4.6.3 Status and Schedule...............................................46 3.4.6.4 Cost ........................................................................46 3.4.6.5 Integration With Other
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