Download or read book Evidence for Groundwater Contamination Vulnerability in California s Central Valley written by J. E. Moran and published by . This book was released on 2005 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The California Water Resources Control Board, in collaboration with the US Geological Survey and Lawrence Livermore National Laboratory, has implemented a program to assess the susceptibility of groundwater resources. Advanced techniques such as groundwater age dating using the tritium-helium method, extensive use of oxygen isotopes of the water molecule ({delta}{sup 18}O) for recharge water provenance, and analysis of common volatile organic compounds (VOCs) at ultra-low levels are applied with the goal of assessing the contamination vulnerability of deep aquifers, which are frequently used for public drinking water supply. Over 1200 public drinking water wells have been tested to date, resulting in a very large, tightly spaced collection of groundwater ages in some of the heavily exploited groundwater basins of California. Smaller scale field studies that include shallow monitoring wells are aimed at assessing the probability that nitrate will be transported to deep drinking water aquifers. When employed on a basin-scale, groundwater ages are an effective tool for identifying recharge areas, defining flowpaths, and determining the rate of transport of water and entrained contaminants. De-convolution of mixed ages, using ancillary dissolved noble gas data, gives insight into the water age distribution drawn at a well, and into the effective dilution of contaminants such as nitrate at long-screened production wells. In combination with groundwater ages, low-level VOCs are used to assess the impact of vertical transport. Special studies are focused on the fate and transport of nitrate with respect to vulnerability of aquifers in agricultural and formerly agricultural areas.
Download or read book Ground Water in the Central Valley California written by G. L. Bertoldi and published by . This book was released on 1991 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Prof. paper 1401-A.
Download or read book Ground Water in the Central Valley California written by G. L. Bertoldi and published by . This book was released on 1991 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 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 California s Central Valley Groundwater Study written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Central Valley Project Improvement Act Programmatic Environmental Impact Statement written by and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vulnerability to Groundwater Contamination Due to Agrochemical Use in the San Joaquin Valley California written by James Sawyer Blanke and published by . This book was released on 1999 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Contamination by Pesticides written by Yoram J. Litwin and published by . This book was released on 1983 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Investigations in the Central Valley written by United States. Bureau of Reclamation and published by . This book was released on 1950 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Profiling Areas Vulnerable to Ground Water Contamination by Pesticides in California written by and published by . This book was released on 1992 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Banking Pilot Project of Central Valley Project Water from City of Tracy to Semitropic Water Storage District written by and published by . This book was released on 2006 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comprehensive Groundwater Quality Monitoring Program for California written by California Environmental Protection Agency. State Water Resources Control Board and published by . This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book California s Contaminated Groundwater Resources written by Alex N. Helperin and published by . This book was released on 2001 with total page 97 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 (USGS). This book was released on 2009-01-01 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water Pollution Investigations in California written by California. Department of Water Resources. Central District and published by . This book was released on 1986 with total page 64 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:
