This module highlights some of the general methods of groundwater exploration. The matrix allows you to screen through 64 in situ and ex situ technologies for. Especially in hard rock terrain groundwater confines to the weathered mantle, joints and fractures. Groundwater investigation can be generally divided into two types.
Evaluation of groundwater potential using geospatial techniques abdulaziz hussein2 vanum govindu1 amare gebre medhin nigusse1 received. This study utilizes rs and gis techniques, and also studies the hydrogeological, geological, and geomorphological characteristics that have significant impact on groundwater occurrence in wadi naman. Of these conducted studies in the area, almost all of these studies hardly evaluated the prospective groundwater of the area with the advance application geospatial and mcda tools. Groundwater investigation techniquesgeophysical methods slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Slides from presentation at march 16, 2011, community meeting. Geophysical investigation geophysical methods comprise of measurement of signals from natural or induced phenomena of physical properties of sub surface formation. The groundwater potential of an area mainly depends on the hydrogeological set up, for which a detailed and systematic hydrogeological survey is a prerequisite. Hydrogeologic investigation and groundwater modeling report. Groundwater can also be found in most environments using the appropriate exploration techniques so supplies can be located close to the point of need, minimizing the requirement for. Such a process uses structured problem solving techniques to identify and track root causes. Technical guide to managing ground water resources united states department of agriculture forest service minerals and geology management watershed, fish, wildlife, air, and rare plants engineering. The ground investigation is the most fundamental part of the site investigation as a whole.
Zhang encyclopedia of life support systems eolss contamination. As a case study we aim at the guarani aquifer, more specifically at its recharge zone on the southern rim. Investigation of groundwater potential zones in hard rock. Remediation technologies for cleaning up contaminated. An integrated geophysical study involving 2d electrical resistivity induced polarization imaging, very low frequencyem, and seismic refraction tomography was conducted at unguwan dosa municipal solid wastedisposal site in kaduna metropolis, north western nigeria. The present work is aimed at assessing the water quality index wqi for the ground water of indore city.
There are different groundwater exploration methods. The techniques involved in scientific groundwater investigations are briefly described in the following sections. Section d of book 2 is on sur face geophysical methods. Therefore the capability to predict the behavior of chemical contaminates in flowing groundwater is of vital importance for a. Quantitative maps of groundwater resources in africa. Pumpandtreat pumpandtreat is a primary technique for groundwater and soil remediation. Investigating groundwater contamination environmental isotopes are used to study serious pollution problems by v. The handbook of suggested practices for the design and installation of groundwater monitoring wells is intended to assist personnel involved with the design, construction, and installation of groundwater. The dominant role of groundwater resources is clear and their use and protection is, therefore, of fundamental importance to human life and economic activity. In any groundwater contamination investigation it is essential to obtain the background concentration of the chemical constituents of concern, particularly those that might be common both to the local groundwater and a contaminant. National field manual for the collection of waterquality. Geological surveystandard protocols and procedures. Almost everywhere it has made a difference in providing safe drinking water and livelihood security in times of drought.
In any groundwater contamination investigation it is essential to. Pdf electrical resistivity techniques for groundwater. Ako and osondu 1986 carried out groundwater investigations at darazo on the kerrikerri. Groundwater is the earths largest accessible store of fresh water excluding ice sheets and glaciers and constitutes about 94% of all fresh water. The electrical geophysical survey method is the detection of the. Groundwater investigations groundwater engineering.
If you continue browsing the site, you agree to the use of cookies on this website. For depths on the order of 200 feet or less, the electrical resistivity profiling and seismic refraction methods are generally useful and economic. Ground investigation services, reports and techniques geocon. Investigation techniques, insitu tests for determining hydraulic coefficients, and groundwater quality are discussed in this chapter. Groundwater is best described as the worlds real hidden treasure. Layne christensen company the current and continuing drought in many parts of the world, combined with everincreasing demands from both traditional and new water users, including municipal. Ii remediation techniques for soil and groundwater x. Where ground water is not sampled during the investigation of a potentially contaminated aoc, and a ground water investigation may be warranted based on the above considerations or other site specific data, the technical justification for not performing a ground water site investigation should be provided in the applicable remedial phase report.
Environmental tracer techniques in groundwater investigations. Ground water sampling page 10i revision 1, february 2006 technical guidance manual for ground water investigations chapter 10 ground water sampling. The type of terrain, rock formations, lithological. Groundwater discharge may be exclusive to wells that are distributed throughout a given watershed or groundwater basin, or it may discharge to downgradient stream segments and lakes, springs, or via the underground directly to neighboring groundwater basins. Groundwater investigation and characterization introduction this document provides guidance to qualified professionals for the investigation and characterization of groundwater at sites in british columbia that may be, or are, contaminated. It is therefore very important to find appropriate groundwater potential gp zones in this wadi for water supply. The remediation technologies screening matrix is a userfriendly tool to screen for technologies for a remediation project. Site investigation report preparation checklist wis. Groundwater modeling program gmp in the mdeq remediation and redevelopment division rrd, to assist in the application and development of groundwater flow and solutetransport models, and the proper documentation and presentation of simulations for models that have been developed in support. All our ground investigations are performed to the relevant british and. Geoelectrical techniques are essentially concerned with the measurement of electrical resistivities of subsurface materials, which preferentially provides information on the different geological layers. Six 2d resistivity profiles both around the perimeter and inside the dump were investigated with maximum length of 200 m. Groundwater is an important source of water supply for municipalities, agriculture and industry.
Geometrics 856 the proton precession magnetometer utilizes the precession of spinning protons or nuclei of the hydrogen atom in a sample of hydrocarbon fluid to measure the total magnetic intensity. Geophysical investigation for groundwater using electrical. Following the results of a phase i preliminary risk assessment, when a phase ii site investigation is required which encompasss the ground investigation. Application of isotope techniques to investigate groundwater pollution if you would like to learn more about the iaeas work, sign up for our weekly updates containing our most important news, multimedia and more. Consequently, groundwater quality assessment is invariably directed towards factors which may lessen the suitability of pumped groundwater with respect to its potability and use in agriculture and industry. The no terial is grouped under major subject headings called. Further details of the various ground investigation techniques, testing and reporting services are given under site investigation. Geophysical investigation for groundwater using electrical resistivity method a case study of annunciation grammar school, ikere lga, ekiti state, southwestern nigeria lateef t. Where ground water is not sampled during the investigation of a potentially contaminated aoc, and a ground water investigation may be warranted based on the above considerations or other site specific data, the technical justification for not performing a ground water site investigation. The assessment of the ground water quality was carried out in the different wards of indore city. Application of isotope techniques to investigate groundwater.
Assessment of groundwater investigations and borehole. The ground water occurrence and movement mainly depend on the geology of the area. Subsurface surveys extensive education and experience. Geophysical survey involving electrical resistivity methods has been carried out at annunciation. This lesson deals with the scale of groundwater investigation as well as an overview of surface methods and subsurface methods of groundwater exploration. But, groundwater makes up to 35 times the amount of water in lakes and streams. All documents presented in adobe acrobat pdf format. The electrical techniques have been used in a mandal. Because there may be several plausible subsurface scenarios that could produce a given geophysical response, the combined use of different geophysical techniques.
Recommendations must conform to state, federal, tribal, and local water and. Handbook of suggested practices for the design and. Surficial and downhole geophysical techniques were used to obtain data that. In addition to pumping tests, groundwater engineering provides a complete service for a wide range of groundwater investigation techniques. The application of these techniques in connection with surface and groundwater in sudan are discussed briefly.
The no terial is grouped under major subject headings called books and f,ur ther subdivided into sections and chapters. Groundwater engineering page 1 of 4 technology data sheet mine dewatering groundwater is a common problem when mining, and developing a mine below groundwater level presents many challenges. Groundwater investigation techniquesgeophysical methods. Technical guide to managing ground water resources united states department of agriculture forest service minerals and geology management watershed, fish, wildlife, air, and rare plants engineering fs881 may 2007. Therefore the capability to predict the behavior of chemical contaminates in flowing groundwater is of vital. Environmental tracer techniques in groundwater investigations article pdf available in water and energy international 587. Geologic, geophysical, and hydrologic investigations for a. Ground water sampling page 102 revision 2, may 2012 1. Pdf methods of groundwater exploration researchgate.
It is best used along with other site investigation related guidance. The electrical geophysical survey method is the detection of the surface effects produced by the flow of electric current inside the earth. The intensity of groundwater investigations depends. Data acquisition methods for groundwater investigation and. Gonfiantini during the past 100 years, groundwater has become an increasingly important source of water supply worldwide for domestic, agricultural, and industrial uses. It is the responsibility of the site owner or operator to retain a qualified. Evaluation of groundwater potential using geospatial techniques. Pdf environmental tracer techniques in groundwater. It is customary to think of groundwater as being more important in arid or semiarid areas. It is easy for the importance of groundwater in water supplies to be underestimated. It can be concluded that these techniques complement the more traditional hydrological and hydrogeological methods employed in water resource investigations.
Groundwater investigation using combined geophysical. Evaluation of groundwater potential using geospatial. Groundwater occurs everywhere beneath the earths surface, but is usually restricted to depth less than about 750 meters. Electrical resistivity techniques for groundwater investigation in shirpur taluka of dhule district, maharashtra state, india. Poorly controlled groundwater will have negative impacts on the safety, efficiency and economics of mining operations. Site remediation program ground water technical guidance. Because there may be several plausible subsurface scenarios that could produce a given geophysical response, the combined use of different geophysical techniques is often recommended. Technical guidance manual for ground water investigations. Nov 08, 2015 groundwater investigation techniques geophysical methods slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Field and laboratory investigations should be planned so as to be aimed at collecting data which can be used in risk assessments of groundwater, land use and surface water recipients. Department of physics, university of adoekiti, ekiti state. Assessment of groundwater investigations and borehole drilling capacity in uganda i executive summary the objective of the study is to assess the groundwater investigation, drilling and. Deep groundwater exploration using geophysics jim hasbrouck, r. Hydrogeologic investigation and groundwater modeling report 227 kb, 58 pages reference documents 45. The geophysical investigation involved the vertical electrical sounding ves technique using the schlumberger configuration and the horizontal profiling method. Guidance on the design and installation of groundwater. Desk top studies and research into existing information can be a very cost effective way to identify groundwater problems at an early stage. Surface geophysical method is one of the groundwater investigation. Well inventory study is very important in any groundwater exploration programme. A site investigation simply is the process of the collection of. This checklist may be used as an outline for preparation of a site investigation report. Groundwater investigation using combined geophysical methods amarachi r alisiobi1, and b. Groundwater investigation and characterization introduction this document provides guidance to qualified professionals for the investigation and characterization of groundwater at sites in british.
Groundwater makes up about 1% of the water on the earth most water is in oceans. Technology data sheet mine dewatering groundwater eng. The study area lies in the northeast part of sinai peninsula, between north of gebel al amr and algorah areas. Technical guide to ground water resource management. The series of manuals on techniques describes procedures for planning and executing specialized work in waterresources investigations. This was aimed at evaluating the subsoil conditions and groundwater quality of the area three years after the postspill cleanup exercise. Groundwater investigation using combined geophysical methods. Zhang encyclopedia of life support systems eolss 2. Hence, the aim of the study was to apply geospatial technologies and multicriteria analysis decision analysis in groundwater.
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