Download or read book Groundwater quality in the southern Sierra Nevada California written by Miranda Susan Fram and published by . This book was released on 2012 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status and Understanding of Groundwater Quality in the Sierra Nevada Regional Study Unit 2008 written by Miranda Susan Fram and published by . This book was released on 2014 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater quality in the Sierra Nevada Regional (SNR) study unit was investigated as part of the California State Water Resources Control Board's Groundwater Ambient Monitoring and Assessment Program Priority Basin Project. The study was designed to provide statistically unbiased assessments of the quality of untreated groundwater within the primary aquifer system of the Sierra Nevada. The primary aquifer system for the SNR study unit was delineated by the depth intervals over which wells in the State of California's database of public drinking-water supply wells are open or screened. Two types of assessments were made: (1) a status assessment that described the current quality of the groundwater resource, and (2) an evaluation of relations between groundwater quality and potential explanatory factors that represent characteristics of the primary aquifer system. The assessments characterize untreated groundwater quality, rather than the quality of treated drinking water delivered to consumers by water distributors. The status assessment was based on water-quality data collected by the U.S. Geological Survey from 83 wells in the SNR study unit in 2008 and from 117 wells in 3 small study units within the SNR study unit in 2006-07 and on water-quality data compiled in the State's database for 1,066 wells sampled in 2006-08. To provide some context for the results, water-quality data were converted to relative-concentrations (RCs), which are the sample concentrations divided by the concentrations of Federal or California regulatory and non-regulatory benchmarks for drinking-water quality. RCs for inorganic constituents (major ions, trace elements, nutrients, and radioactive constituents) were classified as "high" (RC > 1.0, indicating that concentration is above the benchmark), "moderate" (1.0 ≥ RC > 0.5), or "low" (RC ≤ 0.5). For organic constituents (volatile organic compounds and pesticides) and special-interest constituents (perchlorate and N-nitrosodimethylamine [NDMA]), the boundary between moderate and low RCs was set at 0.1. All benchmarks used for organic constituents were health-based, whereas health-based and aesthetic-based benchmarks were used for inorganic constituents. The primary metric used for quantifying regional-scale groundwater quality was "aquifer-scale proportion." Aquifer-scale proportions were calculated as the areal percentages of the primary aquifer system having high, moderate, and low RCs for a given constituent or class of constituents. The SNR study unit area was classified into four aquifer lithologic types--granitic rocks, metamorphic rocks, sedimentary deposits, and volcanic rocks--and aquifer-scale proportions were calculated on an area-weighted basis for each of the four aquifer lithologies and for the study unit as a whole (aggregated system). The results of the status assessment indicated that inorganic constituents were present at high and moderate RCs in greater proportions in the SNR study unit aggregated primary aquifer system than were organic constituents and that there were significant differences (p

Download or read book Groundwater Quality in the Sierra Nevada California written by Miranda Susan Fram and published by . This book was released on 2014 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Groundwater Quality in the Yuba River and Bear River Watersheds Sierra Nevada California written by Miranda Susan Fram and published by . This book was released on 2017 with total page 4 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 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 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 Availability of Ground water Data for California Water Year 1998 written by and published by . This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Water Quality in the South Grassland Area of the Western San Joaquin Valley California written by Polly Lowry and published by . This book was released on 1989 with total page 112 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 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Hydrologic Information for Adequacy in Developing a Water Management Plan in the Owens Valley Southern California written by W. F. Hardt and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Quality of Ground Water in the Eastern Sacramento Valley California written by Ronald P. Fogelman and published by . This book was released on 1979 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status and Understanding of Groundwater Quality in the Northern Sierra Nevada Foothills Domestic Supply Aquifer Study Units 2015 17 written by Zeno Levy and published by . This book was released on 2021 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Occurrence and Quality Lahontan Region written by California. Department of Water Resources and published by . This book was released on 1964 with total page 614 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 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to Water in California written by David Carle and published by Univ of California Press. This book was released on 2004-04-26 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book engages readers at a personal level."—Donald Pisani, author of Water and American Government "Water is the foundation upon which California's ecosystems and economic vitality rise. This is a must read for anyone living in California, whether they are students, politicians, farmers, environmental activists, or corporate executives."—Arthur Guy Baggett, Jr., Chair, California State Water Resources Control Board "A comprehensive, readable natural history guide to an extremely complicated subject. It interweaves the historical, human, and technological factors with the ecological and environmental realities."—Pam Lloyd, former Chair of the California Regional Water Quality Control Board, S.F. Bay Region