2020 Colorado River Accounting and Water Use Report: Arizona, California, and Nevada
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- BUREAU OF - RECLAMATION ccou port: Ariz Nevada lorado Bas Mission Statements The Department of the Interior (DOI) conserves and manages the Nation’s natural resources and cultural heritage for the benefit and enjoyment of the American people, provides scientific and other information about natural resources and natural hazards to address societal challenges and create opportunities for the American people, and honors the Nation’s trust responsibilities or special commitments to American Indians, Alaska Natives, and affiliated island communities to help them prosper. The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. Calendar Year 2020 Colorado River Accounting and Water Use Report: Arizona, California, and Nevada Interior Region 8: Lower Colorado Basin U.S. Department of the Interior May 14, 2021 Table of Contents Location Map .............................................................................................................................................. Frontispiece Acronyms and Abbreviated Terms ........................................................................................................................... 1 Glossary ............................................................................................................................................................................... 2 Table 1. Summary of Colorado River Accounting and Water Use Data .................................................... 5 Table 2. Monthly Storage Contents of the Colorado River System Reservoirs ...................................... 7 Compilation of Records in Accordance with Article V of the Consolidated Decree of the United States Supreme Court in Arizona v California, 547 U.S. 150 (2006).................................... 8 Article V(A): Records of Releases of Water Through Regulatory Structures Controlled by the United States ..................................................................................................................................................................... 9 Table 3. Releases of Water Through Regulatory Structures Controlled by the United States .. 10 Article V(B): Records of Diversions, Return Flows, and Consumptive Use ............................................... 11 Table 4. State of Arizona ..................................................................................................................................... 12 Table 5. State of California .................................................................................................................................. 20 Table 6. State of Nevada ..................................................................................................................................... 24 Article V(C): Records for the Disposition of Water Ordered but not Diverted ......................................26 Table 7. State of Arizona ..................................................................................................................................... 27 Table 8. State of California .................................................................................................................................. 29 Article V(D): Records of Deliveries to Mexico in Satisfaction of Part III of the 1944 Treaty Requirements, and Water Passing to Mexico in Excess of Treaty Requirements ................................. 30 Table 9. Deliveries to Mexico in Satisfaction of Treaty Requirements ............................................... 31 Article V(E): Records of Diversions and Consumptive Use of Water from the Mainstream of the Gila and San Francisco Rivers for the Benefit of the Gila National Forest ............................................. 33 Table 10. Diversions and Consumptive Use for the Benefit of the Gila National Forest ............. 33 Information Provided in Addition to the Reporting Requirements of the Consolidated Decree ................................................................................................................................................. 34 Summary of Water Availability and Use by State ............................................................................................. 35 Table 11. State Apportionments, Adjustments, and Total Consumptive Use ................................. 36 Interstate Water Banking Within the States of Arizona, California, and Nevada .................................. 38 Table 12. Colorado River Water Stored in one State Under 43 CFR Part 414 for the Benefit of Specific Entitles in Another State .......................................................................................................................39 Inadvertent Overruns and Paybacks Within the States of Arizona, California, and Nevada............. 40 Table 13. State of Arizona ................................................................................................................................... 41 Table 14. State of California ............................................................................................................................... 42 Table 15. State of Nevada ................................................................................................................................... 43 Lower Colorado Water Supply Project .................................................................................................................. 44 Table 16. Summary of Uses Offset by Pumpage from the Lower Colorado Water Supply Project .......................................................................................................................................................................... 45 Transfers, Exchanges, and Water Made Available by Conservation .......................................................... 46 Table 17. State of Arizona ................................................................................................................................... 47 Table 18. State of California ............................................................................................................................... 48 Table 19. State of Nevada ................................................................................................................................... 50 Table 20. Bureau of Reclamation ......................................................................................................................51 Exhibit B to the Colorado River Water Delivery Agreement ......................................................................... 52 Intentionally Created Surplus ................................................................................................................................... 53 Table 22. Intentionally Created Surplus by State, Water User and ICS Type ................................... 54 Drought Contingency/Binational Water Scarcity Contingency Plan Contributions ........................... 56 Table 23. U.S. Drought Contingency Plan Contribution by State, Water User, and DCP Contribution Type ................................................................................................................................................... 57 Table 24. Mexico's Binational Water Scarcity Contingency Plan Contribution ............................... 58 Documents and Letters Significant to the Delivery of and Accounting for the Use of Colorado River Water in Calendar Year 2020 ......................................................................................................................... 59 Maps Identifying the General Location of Lower Colorado River Water Users .....................................65 Map Index .................................................................................................................................................................. 66 Map 1: Lake Mead Area Water Users ............................................................................................................. 67 Map 2: Needles Area Water Users ................................................................................................................... 68 Map 3: Blythe Area Water Users ....................................................................................................................... 69 Map 4: Cibola – Imperial Area Water Users ................................................................................................. 70 Map 5: Yuma Area Overview Water Users .................................................................................................... 71 Map 6: Yuma Area North Water Users ........................................................................................................... 72 Map 7: Yuma Area South Water Users ........................................................................................................... 73 Acronyms and Abbreviated Terms These acronyms and abbreviations are found in the text, footnotes, and headings within this document. AAC All-American Canal IID Imperial Irrigation District AACLP All-American Canal Lining Project IOPP Inadvertent Overrun and Payback Policy ADP Arizona diesel pump ISG Colorado River Interim Surplus ADW Arizona diesel well Guidelines AEP Arizona electric pump IUS Interstate Underground Storage credits AEW Arizona electric well KAF Thousand acre-feet AF acre-feet LB DCP Lower Basin Drought Contingency Plan ALTSC