Agricultural Water Conservation and Efficiency Potential in California

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  Agricultural Water Use Efficiency (Resource Management Strategy)

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  Agricultural Water Use Efficiency (Resource Management Strategy)

  Department of Water Resources | July 29, 2016...

  Summary

  The agricultural water use efficiency strategy describes the use and application of scientific processes to control agricultural water delivery and use to achieve...

  The agricultural water use efficiency strategy describes the use and application of scientific processes to control agricultural water delivery and use to achieve a beneficial outcome. It includes an estimation of net water savings or increased production resulting from implementing efficiency measures as expressed by the ratio of output to input, resulting benefits, and strategies to achieve efficiency and benefits.

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  Agricultural Land Stewardship (Resource Management Strategy)

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  Agricultural Land Stewardship (Resource Management Strategy)

  California Department of Water Resources (DWR) | July 29, 2016...

  Summary

  This resource management strategy focuses primarily on private land in agriculture including cultivated land and rangeland. Agricultural land in California comprises about 31.6...

  This resource management strategy focuses primarily on private land in agriculture including cultivated land and rangeland. Agricultural land in California comprises about 31.6 million acres (California Department of Conservation, Division of Land Resource Protection, Farmland Mapping and Monitoring Program 2008). About 12.4 million of these acres are cultivated, while the remaining 19.2 million acres are rangeland (California Department of Forestry and Fire Protection 2010).

  Agricultural systems in California are varied in the way resources are used, ranging from intensive conventional agriculture (irrigated crop cultivation) to more extensive systems such as livestock grazing, each with a different relationship to natural resources. They also affect and are affected by surface hydrology and groundwater recharge in different ways. Stewardship of this land requires constant balancing among natural constraints, market forces, and ever-changing social expectations. Institutions and policies have been developed in response to these challenges. Public investment in water infrastructure (reservoirs, canals, drains, levees, dykes) has been in the forefront of these.

  This resource management strategy report focuses on agricultural land stewardship (ALS) strategies that can be incorporated into relevant adaptive management of agricultural land at different levels, including landscape, regional and project.

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  Addressing Nitrate in California’s Drinking Water with a Focus on Tulare Lake Basin and Salinas Valley Groundwater

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  Addressing Nitrate in California’s Drinking Water with a Focus on Tulare Lake Basin and Salinas Valley Groundwater

  University of California, Davis (UC Davis) | March 1, 2012...

  Summary

  In 2008, Senate Bill SBX2 1 (Perata) was signed into law (Water Code Section 83002.5), requiring the State Water Resources Control Board (State...

  In 2008, Senate Bill SBX2 1 (Perata) was signed into law (Water Code Section 83002.5), requiring the State Water Resources Control Board (State Water Board), in consultation with other agencies, to prepare a Report to the Legislature to “improve understanding of the causes of [nitrate] groundwater contamination, identify potential remediation solutions and funding sources to recover costs expended by the State to clean up or treat groundwater, and ensure the provision of safe drinking water to all communities.”

  The University of California prepared this Report under contract with the State Water Board as it prepares its Report to the Legislature.  This executive summary focuses on major findings and promising actions. Details can be found in the Main Report and eight accompanying Technical Reports.

  Technical Report 1: Project and Technical Report Outline (Version July 2012)

  Technical Report 2: Nitrogen Sources and Loading to Groundwater (Version July 2012)

  Appendix, Technical Report 2: Appendix Figures to Technical Report 2 (Version July 2012) - 84 MB (large file)

  Technical Report 3: Nitrogen Source Reduction to Protect Groundwater Quality (Version July 2012)

  Technical Report 4: Groundwater Nitrate Occurrence (Version July 2012)

  Technical Report 5: Groundwater Remediation and Management for Nitrate (Version July 2012)

  Technical Report 6: Drinking Water Treatment for Nitrate (Version July 2012)

  Technical Report 7: Alternative Water Supply Options for Nitrate Contamination (Version July 2012)

  Technical Report 8: Regulatory and Funding Options for Nitrate Groundwater Contamination

  U.C. Davis Groundwater Nitrate Project links and updates

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  A Technical Advisor’s Manual Managing Agricultural Irrigation Drainage Water: A guide for developing Integrated On-Farm Drainage Management Systems

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  A Technical Advisor’s Manual Managing Agricultural Irrigation Drainage Water: A guide for developing Integrated On-Farm Drainage Management Systems

  California State Water Resources Control Board | September 29, 2005...

  Summary

  This manual is part of a two-part educational and outreach program to educate landowners and technical advisors about the advantages, disadvantages, costs, environmental...

  This manual is part of a two-part educational and outreach program to educate landowners and technical advisors about the advantages, disadvantages, costs, environmental regulations and other considerations in developing and implementing an Integrated On-Farm Drainage Management program for salinity control.

  The first part of the educational program focused on the production and distribution of a guidance manual designed for landowners. It was released in 2004.

  This manual is the second component of the program, and is designed to provide technical consultants and support personnel with the tools they need to assist farmers with developing and implementing an effective IFDM program.

  An IFDM system can serve as a viable alternative for landowners who may not choose to participate in a voluntary land retirement program for drainage-impacted lands. Once irrigation systems have been optimized to maximize water use efficiency and to minimize the production of subsurface drainage water, an IFDM system can be designed to enable the landowner to process the resulting drainage water on-farm. Interest in IFDM is increasing.

  The merits of IFDM have been recognized by the U.S. Environmental Protection Agency and the State Water Resources Control Board through the award of a Clean Water Act Section 319(h) Grant to educate farmers and to train professionals about IFDM implementation. Both manuals were funded by the grant, targeting the needs of the landowners, water/drainage district managers, engineers and technical professionals.

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