The Impact of Groundwater Development in Arid Lands: a Literature Review and Annotated Bibliography
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Porosity and Permeability Lab
Mrs. Keadle JH Science Porosity and Permeability Lab The terms porosity and permeability are related. porosity – the amount of empty space in a rock or other earth substance; this empty space is known as pore space. Porosity is how much water a substance can hold. Porosity is usually stated as a percentage of the material’s total volume. permeability – is how well water flows through rock or other earth substance. Factors that affect permeability are how large the pores in the substance are and how well the particles fit together. Water flows between the spaces in the material. If the spaces are close together such as in clay based soils, the water will tend to cling to the material and not pass through it easily or quickly. If the spaces are large, such as in the gravel, the water passes through quickly. There are two other terms that are used with water: percolation and infiltration. percolation – the downward movement of water from the land surface into soil or porous rock. infiltration – when the water enters the soil surface after falling from the atmosphere. In this lab, we will test the permeability and porosity of sand, gravel, and soil. Hypothesis Which material do you think will have the highest permeability (fastest time)? ______________ Which material do you think will have the lowest permeability (slowest time)? _____________ Which material do you think will have the highest porosity (largest spaces)? _______________ Which material do you think will have the lowest porosity (smallest spaces)? _______________ 1 Porosity and Permeability Lab Mrs. Keadle JH Science Materials 2 large cups (one with hole in bottom) water marker pea gravel timer yard soil (not potting soil) calculator sand spoon or scraper Procedure for measuring porosity 1. -
Test for the Post of Lecturer/ Assistant Professor
UNIVERSITY OF AGRICULTURE, FAISALABAD PAKISTAN Office of the Controller of Examinations Test for the post of Lecturer/ Assistant Professor All the candidates who applied against the post of Lecturer/Assistant Professor in the University of Agriculture Faisalabad Main Campus, sub Campus Burewala, DG Khan & Toba Tek Singh advertised through National Press with 30-12-2013 as last date for receipt of applications are hereby informed that the list of eligible candidates has been uploaded on website (www.uaf.edu.pk). Test for short listing the candidates will be conducted on 15.06.2014 at 10.00 AM in the University of Agriculture, Faisalabad. The test would comprise written paper of the relevant subject with 60 marks having the following three sections with weightage of 20 marks for each. Section-A MCQs Section-B Questions requiring only a few lines to answer Section-C Questions requiring detailed answer The Roll number slips to eligible candidates have been sent at their given address. If any candidates does not receive Roll number slip two days before the examinations he/she may contact the office of the Controller of Examinations during the office hours on the following telephones and E-mail. Telephones: 041-9201749, 041-92001742, 041-9200161-69/ Ext: 2302,2303 E-mails: [email protected] The candidates are required to bring original Roll No. Slips and original National Identity Card failing which they would not be allowed to enter the Examination Hall. Mobile Phones will not be allowed in the Examination Hall. Please make photocopy of the Roll No. Slip for future reference as the original slip would be collected in the Examination Hall. -
Hydrogeology of Flowing Artesian Wells in Northwest Ohio
Hydrogeology of Flowing Artesian Wells in Northwest Ohio By Curtis J Coe, CPG and Jim Raab Ohio Department of Natural Resources Division of Water Resources June 2016 Bulletin 48 Table of Contents 1.0 Introduction ........................................................................................................................... 1 1.1 Site Location and Setting .................................................................................................. 1 1.2 ODH Water Well Regulations for Flowing Artesian Wells ............................................. 3 1.3 Purpose and Scope of Work .............................................................................................. 3 2.0 Previous Work ....................................................................................................................... 4 2.1 Bedrock Hydrogeology ..................................................................................................... 4 2.2 Glacial Hydrogeolgy ......................................................................................................... 8 2.2.1 Williams Complex Aquifer ....................................................................................... 8 2.2.2 Williams End Moraine Aquifer ................................................................................. 8 2.2.3 Buried Valley Aquifers ............................................................................................ 13 2.2.4 Lake Maumee Lacustrine Aquifer .......................................................................... -
Do You Drink It? 9-12
DO YOU DRINK IT? 9-12 SUBJECTS: Science (Physical Science, Ecology, Earth Science), Social Studies (Geography) TIME: 2 class periods MATERIALS: 3-liter soda bottles aquarium gravel sand (coarse) pump from liquid dispenser blue, yellow & Red food coloring paper cups straws student sheets droppers scissors or razor blades markers OBJECTIVES The student will do the following: 1. Create an aquifer model. 2. Locate major U.S. aquifers. 3. Explain how a well works. 4. Examine a well’s relationship to the water table. 5. Apply principles of well placement. 6. Explain different ways that groundwater is contaminated. 4-37 BACKGROUND INFORMATION An aquifer is an underground layer of rock or soil that holds the water called groundwater. The word “aquifer” is derived from the Latin “aqua” meaning “water ,”and “ferre” meaning “to bring” or “to yield.” The ability of a geological formation to yield water depends on two factors - porosity and permeability. Porosity is determined by how much water the soil or rock can hold in the spaces between its particles. Permeability means how interconnected the spaces are so that water can flow freely between them. There are two types of aquifers. One is a confined aquifer, in which a water supply is sandwiched between two impermeable layers. These are sometimes called artesian aquifers because, when a well is drilled into this layer, the pressure may be so great that water will spurt to the surface without being pumped. This is an artesian well. The other type of aquifer is the unconfined aquifer, which has an impermeable layer under it but not above it. -
Water Levels in Major Artesian Aquifers of the New Jersey Coastal Plain, 1988
WATER LEVELS IN MAJOR ARTESIAN AQUIFERS OF THE NEW JERSEY COASTAL PLAIN, 1988 By Robert Rosman, Pierre J. Lacombe, and Donald A. Storck U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 95-4060 Prepared in cooperation with the NEW JERSEY DEPARTMENT OF ENVIRONMENTAL PROTECTION West Trenton, New Jersey 1995 CONTENTS Page Abstract............................................................. 1 Introduction......................................................... 2 Purpose and scope............................................... 2 Study area...................................................... 2 Previous investigations......................................... 4 Well-numbering system........................................... 4 Methods of data collection...................................... 5 Description of data presented................................... 6 Acknowledgments................................................. 8 Hydrogeology of the Coastal Plain.................................... 8 Description of aquifers and confining units..................... 11 Location of freshwater/saltwater interface...................... 12 Water levels in artesian aquifers of the Coastal Plain............... 13 Cohansey aquifer in Cape May County............................. 13 Water levels............................................... 13 Water-level fluctuations................................... 13 Atlantic City 800-foot sand..................................... 14 Water levels............................................... 14 Water-level -
Causes of Groundwater Depletion
Number 63 Issue Paper February 2019 Aquifer Depletion and Potential Impacts on Long-term Irrigated Agricultural Productivity When developing policies that regulate groundwater systems that are being depleted, the potential consequences of groundwater depletion need to be fully assessed to determine the trade-offs that exist between the undesired impacts of groundwater depletion and whether these impacts outweigh the benefits associated with groundwater use. (Photo from Ed Hennigan/Shutterstock.) is even higher in arid and semi-arid ar- the Mississippi Embayment Aquifer ABSTRACT eas, where the only consistent source of (Mississippi River lowlands bordering Groundwater is the Earth’s most irrigation water is groundwater. In these Arkansas and Mississippi), aquifers in extracted raw material, with almost regions, however, the use of groundwa- southern Arizona, and smaller aquifers 1,000 cubic kilometers per year (800 ter typically far exceeds the rate at which in many western states. million acre-feet per year) of ground- it is naturally replenished, indicating The groundwater resource with the water pumped from aquifers around the that these critical groundwater resources greatest long-term depletion is the High world. Approximately 70% of ground- are being slowly depleted. Within the Plains (Ogallala) aquifer in the Great water withdrawals worldwide are used to United States, groundwater depletion has Plains Region of the United States, support agricultural production systems, occurred in many important agricultural where groundwater levels have declined and within the United States, about 71% production regions, including the Great by more than 50 meters (150 feet) of groundwater withdrawals are used for Plains Region (Nebraska, Colorado, in some areas. -
Flowing Artesian Wells
Flowing Artesian Wells Water Stewardship Information Series Table of Contents What’s the difference between a flowing artesian well Are there specific actions to avoid when flowing artesian and an artesian well? . 1 conditions are present? . 6 Why do wells flow? . 1 How can flowing artesian well be constructed in bedrock aquifers? . 7 Why is stopping or controlling artesian flow important? . 2 How can flowing artesian well be constructed in How can flowing artesian conditions be determined unconsolidated aquifers? . 7 before drilling? . 2 What should be done if flowing artesian conditions are What are the provincial regulatory requirements for suddenly encountered? . 7 controlling or stopping artesian flow? . 2 What are the key factors in completing and equipping What does it mean to “control” artesian flow from a well? . 3 a flowing artesian well? . 8 Will a flowing artesian well dry up if the flow is stopped How is the pressure or static water level for a flowing or controlled? . 3 artesian well measured? . 8 Are there any water quality concerns with flowing How should flowing artesian wells be closed? . 8 artesian wells? . 3 How is a flowing artesian well disinfected? . 9 Are there any other concerns with flowing artesian wells? . 3 Further Information . 9 What can be done with an existing flowing well? . 4 What if the flow is needed, for example, to increase the baseflow of a creek or stream? . 4 Are there some general guidelines for constructing a flowing artesian well? . 4 What are the key issues to be aware of when drilling a flowing artesian well? . 5 This booklet contains general information on flowing artesian wells for well drillers, groundwater consultants and well owners Hydrostatic head (or confining pressure) is the vertical in British Columbia . -
Groundwater Modeling of the Withdrawal
DOI: 10.7343/as-2018-333 Paper Groundwater modeling of the withdrawal sustainability of Cannara artesian aquifer (Umbria, Italy) Modellazione delle acque sotterranee e prelievo sostenibile dall’acquifero artesiano di Cannara (Umbria) Giovanni Pietro Beretta, Monica Avanzini, Tomaso Marangoni, Marino Burini, Giacomo Schirò, Jacopo Terrenghi, Gaetano Vacca Riassunto: L’acquifero di Cannara (Umbria, Italia) è noto da oltre un Abstract: The Cannara aquifer (Umbria, Italy) has been known for more secolo ed è uno dei principali punti di approvvigionamento di acqua than a century, and is one of the main drinking water supplies in the Umbria potabile nella Regione Umbria. All’inizio veniva utilizzato per scopi Region. In the beginning it was used for irrigation purposes, since this area was irrigui, poiché quest’area era prevalentemente agricola fino agli anni mainly agricultural up to the 1960s. The groundwater—exploited by Umbra ‘60. Le acque sotterranee, sfruttate da Umbra Acque S.p.A. (Società che Acque S.p.A. (a Company supplying drinking water)—is 150 m under ground fornisce l’acqua potabile), sono a 150 m al di sotto il livello del suolo e level and is contained in a porous confined aquifer, which originally had arte- sono contenute in un acquifero poroso confinato, che in origine aveva sian characteristics. Exploitation of 200–300 l/s with nine wells caused a re- caratteristiche artesiane. Lo sfruttamento di 200-300 l/s con nove pozzi duction of piezometric level, maintaining the confined aquifer conditions, except ha causato una riduzione del livello piezometrico, mantenendo le con- for a very short period during which the aquifer was depressurised by drought, dizioni di acquifero confinato, ad eccezione di un periodo molto breve and for increase of emergency withdrawals replacing other water supplies (from durante il quale la falda è stata depressurizzata in seguito alla siccità e springs) for drinking purposes. -
NSEP 2014 Annual Report
NATIONAL SECURITY EDUCATION PROGRAM 2014 ANNUAL REPORT BOREN SCHOLARSHIPS AND FELLOWSHIPS ENGLISH FOR HERITAGE LANGUAGE SPEAKERS LANGUAGE TRAINING CENTERS NATIONAL LANGUAGE SERVICE CORPS ADVANCED FLAGSHIP LANGUAGE INITIATIVE PROJECT GLOBAL OFFICER THE LANGUAGE FLAG SHIP The estimated cost of this report or study for the Department of Defense is approximately $16,000 in Fiscal Years 2014 - 2015. This includes $7,000 in expenses and $9,230 in DoD labor. Generated on 2015Jan15 RefID: C-E90A501 BOREN ALUMNI QUOTES The National Security Education Program (NSEP) “The Boren Fellowship gave me insight into partnered with the Center for Naval Analyses federal opportunities that I had not previously (CNA) in 2014 to examine the Boren Scholarships considered.” and Fellowships program: identifying where alumni currently work, the influence of the Boren “The Boren Fellowship was extremely influential in program on their career paths, and how their my life. I would have been unable to spend an careers have developed since completing their entire year abroad in an immersion program.” service requirements. To gather input from Boren alumni, CNA developed and fielded a survey to “I became just the sort of international security Boren Scholars and Fellows who have completed professional that the Boren seeks to cultivate. I their service requirement. They subsequently am immensely grateful for the opportunity.” analyzed the data collected and produced a final report. The following anonymous comments “The collaborations I established as a Boren were left by alumni at the conclusion of their Fellow during grad school have lasted for 15 survey responses, and are also published in CNA’s years and are continuing.” report.1 “The fellowship I received was truly an amazing “My Boren Scholarship experience was formative. -
The Secret Life of Groundwater
The Secret Life of Groundwater Presented by Natalie Ballew, Texas Water Development Board Activity by Shae Luther and Josh Sendejar, Texas Water Development Board 1 Groundwater flow according to Athanasius Kircher (Kricher, 1665) Image from www.un-igrac.org/sites/default/files/resources/files/Groundwater_around_world.pdf Groundwater has often been perceived as a complete mystery. Imagination and mythology used to drive perceptions of groundwater flow. This is a depiction of groundwater flow from the 1600s. Back then, people believed that water moved from the sea floor up to mountains through mysterious channels where it emerged as springs. The Texas Supreme Court, in more recent history, has even called groundwater ‘secret, occult, and concealed.’ 2 Now, based on scientific observation, we have the water cycle as we know it today. I’m sure y’all are all familiar with the water cycle, how water moves around the earth and atmosphere. The basics, if you need a refresher, evaporation, condensation and precipitation. The water cycle is so much more than just that. Scientists continue to collect data to understand all parts of the water cycle because it’s essential to life on earth and understanding all parts of it can help us make smart decisions around use and conservation to ensure we have water available for generations to come. 3 Today we’ll focus on the groundwater portion of the water cycle. Groundwater is a very important resource in Texas for things like irrigation, public water supply, and environmental needs; in fact, there is more groundwater use in the state than there is surface water use. -
List of GWP Partners
List of GWP Partners Since its inception, GWP has built up a network of Regional Water Partnerships. The Network currently comprises 13 Regional Water Partnerships (RWPs) and 86 Country Water Partnerships (CWPs), and includes more than 3000 Partners located in 1774 countries. Photo: GWP Steering Committee Meeting - December 2016 - Stockholm Updated 21 December 2016 Global Water Partnership (GWP), Global Secretariat, PO Box 24177, 104 51 Stockholm, SWEDEN Visitor’s address: Linnégatan 87D, Phone: +46 (0)8 1213 8600, Fax: + 46 (0)8 1213 8604, e-mail: [email protected] Table of Contents List of GWP Partners.................................................................................................................. 1 GWP Caribbean .......................................................................................................................... 3 GWP Central Africa..................................................................................................................... 6 GWP Central America................................................................................................................. 9 GWP Central and Eastern Europe ............................................................................................ 16 GWP Central Asia and Caucasus .............................................................................................. 21 GWP China................................................................................................................................ 25 GWP Eastern Africa ................................................................................................................. -
An Overview of Groundwater Management in Texas
11/9/2016 So Secret, Occult, and Concealed: An Overview of Groundwater Management in Texas Robert E. Mace, Ph.D., P.G . Texas Water Development Board presented to The Houston Geological Society November 9, 2016; Houston, Texas data planning financing 1 11/9/2016 The following presentation is based upon professional research and analysis within the scope of the Texas Water Development Board’s statutory responsibilities and priorities but, unless specifically noted, does not necessarily reflect official Board positions or decisions. 2 11/9/2016 Groundwater * This could cost you Pound Cake some dough! ** Add rum for flavor! 1. Are you in a groundwater conservation district, Edwards Aquifer Authority, or subsidence district? 2. If the answer is “No”, then you can do whatever you Want (unless you don’t own the water rights, are in a city that restricts wells, are wasteful, or are mean). 3. If the answer is “yes”, then you need to check with the district and/or authority (and city) to see what you can (or can’t do). 4. Keep close tabs on new laws, rules, and court cases. 3 11/9/2016 Denison, Texas 4 11/9/2016 Railroad East well ? ft well 30 ft 33 ft 5 ft 60 ft 66 ft 20 ft eâÄx Éy VtÑàâÜx 1904 AAAáÉ áxvÜxà? ÉvvâÄà tÇw vÉÇvxtÄxwAAA 5 11/9/2016 Fort Worth: 1876 6 11/9/2016 Dallas • Drilled first well in 1887 • The “Dallas Geyser”: 1,000,000 gallons per day • “Well, I swar: I’d rather go to see that than a hanging!” • Folks proposed drilling 270 wells to turn Big D into a seaport town 7 11/9/2016 Water‐level declines 800 600 400 Paluxy 200 Woodbine