Agricultural Water Management Plan
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For Signatories:
San Diego County Water Authority
Valley Center Municipal Water District
Mission Resource Conservation District
And
Member Agencies
Prepared by:
San Diego County Water Authority
Water Resources Department
With assistance from Signatories:
Valley Center Municipal Water District
Mission Resource Conservation District
And
Natural Resources Conservation Service
University of California, Cooperative Extension
County of San Diego, Department of Agriculture,
Weights & Measures
San Diego County Farm Bureau
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TABLE OF CONTENTS
APPENDICES
FIGURES
TABLES
ABBREVIATIONS
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TABLE OF CONTENTS:
Executive Summary
1.0 Introduction
1.1 Agricultural Efficient Water Management Planning Act
1.2
Regional Signatories
1.3
Agency Coordination and Public Participation
1.4 Plan Format
2.0 Description of Region
2.1 History and Size
2.1.1 San Diego County Water Authority
2.1.2 Valley Center Municipal Water District
2.2 Terrain and Soils
2.2.1 San Diego County Water Authority
2.2.2 Valley Center Municipal Water District
2.3 Climate
2.3.1 San Diego County Water Authority
2.3.2 Valley Center Municipal Water District
3.0 Agriculture
3.1 San Diego County Water Authority
3.1.1 San Diego Is Unique
3.1.2 Economic Value of Agriculture
3.1.3 Crops Grown in San Diego
3.1.4 Agricultural Irrigation Water Requirement
3.1.5 Environmental and Urban Benefits
3.1.6 Pests and Quarantine Issues
3.1.7 Foreign Competition
3.1.8 Energy
3.1.9 Future of Agriculture in San Diego
3.2 Valley Center Municipal Water District
4.0 Water Operations
4.1 Facilities
4.1.1 San Diego County Water Authority
4.1.2 Changes to the Service Area
4.1.3 Capital Improvements Program
4.1.4 Emergency Storage Project
4.1.5 Valley Center Municipal Water District
4.2 Operating Rules
4.2.1 San Diego County Water Authority
4.2.2 Valley Center Municipal Water District
4.3 Water Delivery Measurement
4.3.1 San Diego County Water Authority
4.3.2 Valley Center Municipal Water District
4.4 Water Rates Schedules
4.4.1 San Diego County Water Authority
4.4.2 Valley Center Municipal Water District
4.5 Water Shortage Allocation Policy
4.5.1 San Diego County Water Authority
4.5.2 Valley Center Municipal Water District
5.0 Imported Water Resources
5.1 Metropolitan Water District of Southern California
5.1.1 Colorado River
5.1.2 State Water Project
5.2 Other Imported Water
5.2.1 Authority – Imperial Irrigation District WaterConservation
and Transfer Agreement
5.2.2 Regional Colorado River ConveyanceFeasibility Study
5.2.3 Transfers and Exchanges
6.0 Local Water Resources
6.1 Surface Water
6.1.1 San Diego County Water Authority
6.1.2 Valley Center Municipal Water District
6.2 Ground Water
6.2.1 San Diego County Water Authority
6.2.2 Valley Center Municipal Water District
6.3 Urban Demand Management
6.3.1 San Diego County Water Authority
6.3.2 Valley Center Municipal Water District
6.4 Water Recycling
6.4.1 San Diego County Water Authority
6.4.2 Valley Center Municipal Water District
6.5 Sea Water Desalination
6.5.1 San Diego County Water Authority
6.5.2 Valley Center Municipal Water District
7.0 Water Quality
7.1 San Diego County Water Authority
7.2 Valley Center Municipal Water District
7.3 Disinfection By-Products
7.4 Salinity
8.0 Water Demands
8.1 Historic and Projected Demands
8.2 Municipal and Industrial
8.2.1 Residential Demand
8.2.2 Commercial and Industrial Demand
8.3 Agricultural Demand
9.0 Water Accounting
10.0 Agricultural Efficient Water Management
Practices
10.1 List A - Generally Applicable Efficient Water Management
Practices
10.1.1 Adopt a Water Management Plan
10.1.2 Designate a Water Conservation Coordinator
10.1.3 Provide Water Management Services
10.1.4 Improve Communication
10.1.5 Evaluate the Need for Changes in Policies
10.1.6 Improve Pump Efficiency
10.2 List B - Conditionally Applicable Efficient
Water Management Practices
10.2.1 Facilitate Alternate Land Use
10.2.2 Facilitate Recycled Water Use
10.2.3 Facilitate Financial Assistance
10.2.4 Facilitate Voluntary Water Transfers
10.2.5 Line or Pipe Ditches or Canals
10.2.6 Increase Water Ordering and Delivery Flexibility
10.2.7 Construct and OperateTailwater and Spill Recovery Systems
10.2.8 Optimize Conjunctive Use
10.2.9 Automate Canal Structures
10.3 List C - Other Efficient Water Management
Practices
10.3.1 Water Measurement, Water Use Update
10.3.2 Pricing and Incentives
10.3.3 Facilitate Agricultural Water Conservation Research
APPENDICES
Appendix A Memorandum of Understanding Regarding
Efficient Water Management Practices by Agricultural Water Suppliers in California
Appendix B Resolutions of Signatories
- Exhibit 1 – Valley Center MWD
- Exhibit 2 – Mission Resource Conservation District
- Exhibit 3 - San Diego County Water Authority
Appendix C Agricultural Best Management Practices
Appendix D Authority Administrative Code, Selected
Sections
Appendix E Valley Center MWD Schedule of Rates
Appendix F Special Agricultural Water Rate (SAWR)
Handbook
Appendix G Valley Center MWD Administrative Code,
Emergency Water Management
Appendix H Authority CUWCC BMP Report
Appendix I Valley Center MWD CUWCC BMP Report
Appendix J Valley Center MWD Water Quality Report
TABLES (see respective chapter)
2-1
Authority Member Agencies
3-1
1999 San Diego County Crops by Acres and Dollar Value
3-2
Member Agency Crop Acres - 1999
3-3
FY 00 IAWP by Member Agencies by Month
5-1
Seven Party Agreement Priorities
5-2
Authority/IID Water Transfer Contingencies
6-1
Major San Diego County Reservoirs
6-2
Urban Water Conservation Best Management Practices
8-1
Historic Water Demand within Authority Service Area
8-2
1999 Calculated Agricultural Irrigation Water Requirement
8-3
1999 Estimated Agricultural Irrigation Water Use
9-1 Regional Water Balance in FY 99
10-1 Agricultural Efficient Water Management Practices
FIGURES (see respective chapter)
2-1
Authority Service Area Map
2-2
Valley Center MWD Service Area Map
3-1
1999 San Diego County Crops by Percent Dollar Value
5-1
FY 2000 Imported and Local Water Supplies
5-2
Metropolitan Service Area Map
5-3
Major Water Conveyance Facilities Serving San Diego County
6-1
Major San Diego County Reservoirs Map
6-2
Principal Aquifers in Western San Diego County
6-3
San Diego County Wastewater Treatment and Water Recycling Facilities
7-1
Treatment Plant Average Effluent of TDS in mg/L
8-1 FY 2000 Categories of Water Demand
ABBREVIATIONS
AF acre-feet
AF/YR acre-feet per year
Ag BMPs Agricultural Best Management Practices
Authority San Diego County Water Authority
AWMP Agricultural Water Management Program
Bay-Delta San Francisco Bay/Sacramento-San Joaquin Delta
BMPs Best Management Practices
BTC Binational Technical Committee
California Plan California’s Colorado Water Use Plan
CEC California Energy Commission
cfs cubic feet per second
CII Commercial, Industrial and Institutional
CIMIS California Irrigation Management Information Systems
CIP Capital Improvement Program
CIT Center for Irrigation Technology
Council Agricultural Water Management Council
CRA Colorado River Aqueduct
CUWCC California Urban Water Conservation Council
CVP Central Valley Project
Delta Sacramento - San Joaquin River Delta
DHS Department of Health Services
DWR Department of Water Resources
EPA Environmental Protection Agency
ESP Emergency Storage Project
EWMPs Efficient Water Management Practices
FAP Financial Assistance Program
FY Fiscal Year
Framework California’s Water Future: A Framework for Action
GATT General Agreement on Tariffs and Trade
hcf hundred cubic feet
HEWs high-efficiency clothes washers
IAWP Interim Agricultural Water Program
IBWC International Boundary and Water Commission
IID Imperial Irrigation District
ITRC Irrigation Training and Research Center
LRP Local Resource Program
M&I municipal & industrial
MAF million acre-feet
MAF/YR million acre-feet per year
mg/l milligrams per liter
mgd million gallons per day
Metropolitan Metropolitan Water District of Southern California
MOU Memorandum of Understanding
MWD metropolitan water district
NAFTA North American Free Trade Agreement
Plan Agricultural Water Management Plan
RCD Resource Conservation District
Regional Study Regional Colorado River Conveyance Feasibility Study
RO reverse osmosis
ROD Record of Decision
RWDF Reclaimed Water Development Fund
RWDS Recycled Water Distribution System
SANDAG San Diego Association of Governments
SAWR Special Agricultural Water Rate
SDG&E San Diego Gas and Electric
SF single-family residential
SWP State Water Project
SWRCB State Water Resources Control Board
TDS total dissolved solids
ULFTs ultra-low flush toilets
USBR U.S. Bureau of Reclamation
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