Groundwater quality in the southern San Joaquin Valley was investigated from October 2005 through March 2006 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project is conducted by the U.S. Geological Survey (USGS) in collaboration with the California State Water Resources Control Board and the Lawrence Livermore National Laboratory. There are two study units located in the southern San Joaquin Valley: the Southeast San Joaquin Valley (SESJ) study unit and the Kern County Subbasin (KERN) study unit.
Watershed Investigations: 12 Labs for High School Science provides high school educators with a series of broad-based, hands-on experiments designed to help students understand the relationships between human impact and local hydrology. Covering a range of disciplines-including geology, chemistry, Earth science, botany, and biology-this volume gives educators lesson plans that will interest the student and meet a wide array of state and national curricular standards.
Groundwater quality in the approximately 860-square-mile Madera and Chowchilla Subbasins (Madera-Chowchilla study unit) of the San Joaquin Valley Basin was investigated as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is located in California's Central Valley region in parts of Madera, Merced, and Fresno Counties. The GAMA Priority Basin Project is being conducted by the California State Water Resources Control Board in collaboration with the U.S. Geological Survey (USGS) and the Lawrence Livermore National Laboratory. The Project was designed to provide statistically robust assessments of untreated groundwater quality within the primary aquifer systems in California. The primary aquifer system within each study unit is defined by the depth of the perforated or open intervals of the wells listed in the California Department of Public Health (CDPH) database of wells used for municipal and community drinking-water supply. The quality of groundwater in shallower or deeper water-bearing zones may differ from that in the primary aquifer system; shallower groundwater may be more vulnerable to contamination from the surface.
The Edwards aquifer is one of the major regional karst aquifers in the United States, with an average withdrawal of 950 million liters per day (L/d). This investigation focuses on the connection between the Uvalde pool and the San Antonio pool of the Edwards aquifer, known as the Knippa Gap, west of the San Antonio metropolitan area in Uvalde County. This is a major zone of recharge to the Edwards aquifer and is approximately 6.4 km wide. The Knippa Gap is bounded by northeast trending faults of the Balcones Fault Zone (BFZ) on the north (specifically the Cooks and Trio Faults), and uplift from the Uvalde salient and igneous intrusive plugs to the south. Aspects of the hydrogeology in the Knippa Gap have been a topic of major interest among researchers in this area for numerous years, however, the exact location and nature of boundaries are undefined, and the discharge through this area is not accurately known. The input data from this investigation will allow for assessments of discharge, better water budget approximations for the San Antonio pool, and determination of accurate flow boundaries and budgets for Uvalde County. This investigation was limited to the transmissive (karstified) portion of the Edwards aquifer within the study area, and is based on previous studies, and newly collected data. The newly collected data include: 1) compilation of a complete table of wells within the study area; 2) redefined placement of flow boundaries (faults) most of which appear to be structurally controlled; 3) hydrostratigraphic analysis of the Knippa Gap area based on drilling and wireline logs; 4) characterization of the depth of karstification within the Knippa Gap; and 5) analyses of water quality within and contiguous to the study area. These data constrain a revised conceptual model of the flow and karstification in this critical area of recharge to the Edwards aquifer, and provide specific lateral boundaries and vertical karstification zones which can be tested quantitatively. Although current interpretations are tentative, it appears this conceptual model will be readily convertible into a digital model that can test hypotheses relating to water levels and spring discharges.
Efficient irrigation systems measure and monitor water use. This book helps you makes sure water losses are kept to a minimum, while keeping the crop or pasture growing with no moisture stress. Efficient water storage, water budgeting and water use efficiency are explained in detail. Part One: Meters is about: · different types of meters and their advantages and disadvantages · what to consider when selecting a meter · installation and maintenance for meters. Part Two: Storage and Distribution is an overview of: · the importance of reducing losses from seepage and evaporation · measuring losses · strategies for reducing losses · economic value of the cost of loss reduction. Part Three: Benchmarking and Water Budgeting shows you how to: · use, interpret and process benchmarking data for the collection of seasonal water use efficiency (WUE) · develop a seasonal water budget.
This book has two parts. Part 1 will help you choose the irrigation system that is right for you, and Part 2 will help you select, operate and maintain your pumping equipment. Part 1 If you are installing or upgrading an irrigation system you will probably be seeking to increase production, decrease the amount of water used or reduce labour required. Part one of this book is about selecting the irrigation system that is best for your enterprise. It is an overview of: · the most widely used irrigation methods in NSW · the capabilities and limitations of the most widely used irrigation methods in NSW · the major issues to consider when selecting an irrigation system · the basic financial analysis you can use to determine the viability of a system you are considering. Part 2 You can save money by increasing productivity and efficiency of your irrigation system if you can improve the performance of the pump. This section about the features of common irrigation pumps helps you to select, operate and maintain your pumping equipment. It contains information on pump types, duty, curves and selection. It contains an explanation of: · the common types of pumps for irrigation systems · pumping head components: static head; suction head; velocity head; friction loss · manufacturers’ pump curves · maintenance and troubleshooting procedures for pumps. This publication was produced by Education Delivery, Tocal College. It supports the following competencies from National Training Package AHC10 Agriculture, Horticulture, Conservation and Land Management: AHCIRG306A - Troubleshoot irrigation systems, AHCIRG402A – Determine hydraulic parameters for an irrigation system, AHCIRG410A - Select and manage pumping systems for irrigation
Environmental Law for Sustainable Construction gives a practical overview of key areas of environmental law as it affects the construction sector. It is suitable for a broad range of practitioners in the architecture, engineering and construction industry who require a clear reference to help navigate the complexity in this area of law.
Case Studies for Integrating Science and the Global Environment is designed to help students of the environment and natural resources make the connections between their training in science and math and today’s complex environmental issues. The book provides an opportunity for students to apply important skills, knowledge, and analytical tools to understand, evaluate, and propose solutions to today’s critical environmental issues. The heart of the book includes four major content areas: water resources; the atmosphere and air quality; ecosystem alteration; and global resources and human needs. Each of these sections features in-depth case studies covering a range of issues for each resource, offering rich opportunities to teach how various scientific disciplines help inform the issue at hand. Case studies provide readers with experience in interpreting real data sets and considering alternate explanations for trends shown by the data. This book helps prepare students for careers that require collaboration with stakeholders and co-workers from various disciplines. Includes global case studies using real data sets that allow readers to practice interpreting data and evaluating alternative explanations Focuses on critical skills and knowledge, encouraging readers to apply science and math to real world problems Employs a system-based approach, linking air, water, and land resources to help readers understand that cause-effect may be complex and solutions to environmental problems require multiple perspectives Includes special features such as links to video clips of scientists at work, boxed information, a solutions section at the end of each case study, and practice exercises
Your complete guide to a higher score on the *AP Environmental Science exam About the book: Introduction Reviews of the AP exam format and scoring Proven strategies for answering matching; problem solving; multiple choice; cause and effect; tables, graphs, and charts; and basic math questions Hints for tackling the free-response questions Part I: Subject Reviews Cover all subject areas you'll be tested on: Earth's systems and resources The living world Population Land and water use Energy resources and consumption Pollution Global change Part II: Practice Exams 3 full-length practice exams with answers and complete explanations Proven test-taking strategies Focused reviews of all exam topics 3 full-length practice exams
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