Download or read book Effects of Surface water Use on Domestic Groundwater Availability and Quality During Drought in the Sierra Nevada Foothills California written by Zeno F. Levy and published by . This book was released on 2020 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Availability of the Central Valley Aquifer California written by Claudia C. Faunt and published by Geological Survey. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Drought Along Pacific Coast in California written by Harold Edgar Thomas and published by . This book was released on 1963 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book California Drought written by Betsy A. Cody and published by DIANE Publishing. This book was released on 2010-10 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: California experienced severe water supply shortages in 2009, which led to economic disruption across the state, incl. losses in agricultural areas in the western portion of the Central Valley ¿ areas already experiencing declines in the housing industry and the economic downturn in general. At the same time, several fish species whose habitat lie at the heart of California¿s water supply system and throughout its northern rivers are in decline and some face the possibility of extinction. This situation too has had economic implications, resulting in job and income losses in northern California. Contents of this report: (1) Intro.; (2) What is Drought?; (3) Drought in California; (4) Regulatory Restrictions Affecting Water Deliveries; (5) California Water Rights. Illus.
Download or read book Lessons Learned from the California Drought 1987 1992 written by Benedykt Dziegielewski and published by DIANE Publishing. This book was released on 1997-04 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the lessons learned of the six-year California drought (1987-1992). This report will improve the mgmt. of water resources during future droughts in California & other states. These lessons capture the views of some 100 interviewed participants representing 57 organizations in California that manage or influence the mgmt. of water. The participating organizations represented Fed., state, regional, & local water supply agencies as well as environmental, private & governmental entities that influence water management in the state.
Download or read book Managing California s Water written by Ellen Hanak and published by Public Policy Instit. of CA. This book was released on 2011 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought Analyses of the California Central Valley Surface groundwater Conveyance System written by and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary Appraisals of the Nation s Ground water Resources California Region written by Harold Edgar Thomas and published by . This book was released on 1976 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Problems and opportunities related to the use of ground water in highly diverse hydrologic and social environments.
Download or read book Surface Water Availability for Groundwater Recharge in the Central Valley California written by Tiffany Noel Kocis and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: California is the largest agricultural producer in the United States, consuming nearly 40% of California's total annual water supply often during times of the year when surface water supplies are relatively limited (i.e. summer). Across all three sectors of California water use (agricultural, environmental, and urban), groundwater accounts for 38% of the California's water supply during a normal year, reaching upwards of 48% during a dry year. This tremendous use of groundwater has led to groundwater overdraft throughout the Central Valley. Statewide groundwater overdraft is estimated between 500 thousand acre-feet and 2.6 million acre-feet per year and is most severe in the Tulare Lake Basin and the southern Central. To address continued overdraft of groundwater resources, the State of California passed the Sustainable Groundwater Management Act (SGMA) in 2014, which requires identification of surface water available for groundwater replenishment. In light of both groundwater overdraft and the passage of SGMA, this study developed an index to identify and rank watersheds where surface water is potentially available for groundwater recharge projects. The spatial index, the STreamflow Availability Rating for Recharge (STARR), can be used by policy makers and stakeholders to inform water resources management decisions. To develop the STARR and to understand the physical distribution of water available for groundwater recharge projects, the magnitude, frequency, duration, and timing of available high-magnitude flow (above the 90th percentile) were determined for unimpaired and impaired stream gauges throughout the Central Valley. This study found that a single wet year can provide 11.8 MAF of water above the 90th percentile from the Sacramento Valley alone -- 5 times the annual groundwater overdraft in the Central Valley. However, these flow above the 90th percentile in an average year occur only for relatively short times between November and April (25-30 days in an average year with flow above the 90th percentile), and from few storm events (5-7 events in an average year with flow), suggesting a need for coordinated efforts for the local-scale diversion of flood flows onto spreading grounds for groundwater recharge. The STARR index incorporates the magnitude, duration, and frequency of high-magnitude flows to rank watersheds in terms of high-magnitude flow availability for groundwater recharge projects. The STARR indicates that the Sacramento Valley, along with high Sierra watersheds, has the most water physically available (7 MAF) for extended periods (50 days) from November to April and the highest inter-annual recurrence frequency (64% of years between 1970 and 2014). In contrast, physical surface water availability in the San Joaquin Basin is marginal (2 MAF over 53 days during only 36% of years between 1989 and 2014) from November to April, while the Tulare Basin has a limited potential for in situ surface water for groundwater recharge. The STARR was further utilized to develop the Optimal Month Rating (OMR) which identifies the month in the December to February and November to April periods that has the greatest water availability and highest reliability. For the two periods, December to February and November to April, the OMR identifies the early spring months (February and March, respectively) as the potentially optimal months for recharge in the Sacramento Basin. For the San Joaquin -- Tulare Basins, the OMR identifies January (for both periods) as the potentially optimal month for recharge. These results suggest that groundwater recharge projects could consider transporting the early available winter water (November to February) from the Sacramento Valley towards the south, where the growing season starts earlier, and utilizing the physically available water during spring (February to April) in situ within the Sacramento Valley as leaf-out tends to occur later in the season in northern California. Given future projections on climate change and the overall growth of California agriculture, this research further evaluated long-term trends in the surface water availability metrics as a means to understand future surface water availability and found limited evidence for significant trends in all surface water availability metrics. A thorough comparison of trend statistics estimated over the full historic record and the post-impairment record (i.e., the record of data since the most recent impairment including dams and diversions) indicates that many of the significant trends may result from long-term alteration of streamflow due to dams, diversions, and water management practices. Finally, this study evaluated the physically available surface water in the context of existing surface water allocations and environmental use and found that surface water is potentially available for groundwater recharge projects based on both existing surface water allocations and reported demand. However, despite the seemingly excessive over-allocation across the Central Valley, this study identified under-utilized water. This under-utilized water is potentially available for short-term appropriation, which would suit the particular needs of groundwater recharge projects, which are ideally conducted over short periods throughout the winter.In conclusion, flows above the 90th percentile potentially provide an untapped source of surface water during the winter months, which could be utilized for groundwater recharge projects to mitigate groundwater overdraft.
Download or read book Proceedings of the Conference on Ground Water written by California Water Resources Center and published by . This book was released on 1975 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Development and the Effects on Ground water Levels and Water Quality in the Town of Atherton San Mateo County California written by Loren F. Metzger and published by . This book was released on 1997 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Framework for a Ground water Quality Monitoring and Assessment Program for California written by Kenneth Belitz and published by . This book was released on 2003 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Quality of Ground Water in Sacramento and Western Placer Counties California written by Karen Louise Johnson and published by . This book was released on 1985 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land and Water Use Effects on Ground water Quality in Las Vegas Valley written by Robert F. Kaufmann and published by . This book was released on 1978 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Framework for a Ground Water Quality Monitoring and Assessment Program for California written by and published by DIANE Publishing. This book was released on with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Continuing California Drought written by California. Department of Water Resources and published by . This book was released on 1977 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Severe Drought in Marin County California written by California. Department of Water Resources and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
