Groundwater Exploration Articles
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Understanding Sonic drilling
What is sonic drilling? Sonic drilling is a technique that significantly reduces friction on the drill string and drill bit by using energy resonance to affect the soil structure where it contacts the drill string. This combination makes penetrating for a large range of soils much easier. Sonic drilling is most often used when the drilling is difficult and the integrity of the core sample is ...
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World Toilet Day 2022 Making the invisible visible
Despite the progress over the past twenty years, sanitation is still one of the Sustainable Development Goals that is furthest out of reach. For this reason, on November 19, Almar Water Solutions mobilizes to make the invisible visible. Access to sanitation and hygiene services are vital for people’s health. However, the figures for poor water management and quality are alarming. 3.6 ...
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Understanding Sonic drilling
What is sonic drilling? Sonic drilling is a technique that significantly reduces friction on the drill string and drill bit by using energy resonance to affect the soil structure where it contacts the drill string. This combination makes penetrating for a large range of soils much easier. Sonic drilling is most often used when the drilling is difficult and the integrity of the core sample is ...
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Rapid Groundwater Exploration - Case Study
A Vehicle-Mounted Solution Using CrossOver CO730 Customer’s task The Swedish Geological Survey (SGU) has been engaged in groundwater exploration projects to investigate Sweden’s many glacial river deposits. The deposits are spread across the country and are the most significant groundwater resources for drinking water supplies in Sweden. SGU wanted a GPR solution to deploy rapidly to ...
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Passive seismic HVSR surveying for groundwater exploration at the Chilalo Graphite Project, Tanzania
Summary Passive seismic HVSR surveying is increasingly being used for investigating the thickness of soft sedimentary cover deposits sitting over hard and fresh bedrock, and for direct drill targeting of paleochannels for groundwater and brine resources. A detailed passive seismic HVSR survey was carried out at the Chilalo Graphite Project in SE Tanzania to assist with defining the thickness of ...
By MoHo s.r.l.
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Traditional Groundwater Diviners/Dowsers v/s Science and technology for Groundwater Exploration- a burning problem in the world
Throughout world including India, the Groundwater diviners/dowsers claim having the special extra ordinary powers within them by which they could find out the site, for constructing/drilling the bore / wells having best yield of groundwater with definite depth and yields. Literate and illiterate villagers & farmers are highly affected by the ground water diviners. In our country, farmers and ...
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Mapping Bedrock Surfaces Near Lake Travis, Texas - Case Study
In May 2014 and May 2015, AGI conducted a hydrogeology workshop focused on training students how to use a resistivity meter for groundwater exploration at Lake Travis near Austin, Texas. Why groundwater exploration? This workshop’s purpose was important: As water—especially groundwater—becomes more and more scarce (and thus, valuable) knowing exactly where and how to find it ...
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Groundwater Exploration in South Sudan - Case Study
Purpose The Radler Foundation, Water Harvest International, and East African Ministries are humanitarian organizations working to bring water wells to villages in rural areas of Africa. In February 2015, they wanted better information about where to drill a well in the Yeri Mozo Village in South Sudan in order to provide access to safe and clean water—and improve the quality of ...
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Surveying for 600-Meter-Deep Groundwater in Kenya - Case Study
The importance of groundwater can’t be overstated. It’s crucial for life across the globe, and, in the developing world, access to groundwater is at a premium. However, with resistivity imaging groundwater exploration techniques, even when you’re in one of the driest locations on Earth, deep groundwater is possible to locate. In 2006, our client, the Engineers Brigade of the ...
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Scanning for Leaks & Sinkhole Detection in a Retention Pond - Case Study
In January 2015, one of our clients used AGI tools and software for leak and sinkhole detection in the liner of a retention pond in Tennessee. Process Our client’s customer had a retention pond that was designed to hold liquid, but it was leaking through a hole in the liner. The client used the SuperSting R8 with 112 total electrodes arranged in a 4-by-28 electrode 3D grid with ...
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Groundwater resource exploration
Resistivity method is very suitable for groundwater exploration. Two methods can be used, the surface method and crosshole method. Surface method is cost effective, though it is sometime not as accurate as the crosshole method. Geologists usually narrow down the exploration area and then operators can use geophysical methods to find groundwater. Surface method involves laying two cables on ...
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Exploring Soil Resistivity in Lima, Peru - Case Study
In April 2013, in partnership with SensorVital and Pontificia Universidad Católica del Perú, AGI conducted a workshop focused on exploring the resistivity of shallow soil at Pontificia Universidad Católica del Perú. Purpose The purpose of this exploration was to use 2D imaging and a soil resistivity meter to demonstrate how AGI’s tools make it simple and fast ...
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India - Groundwater governance case study
Groundwater comprises 97 percent of the worlds readily accessible freshwater and provides the rural, urban, industrial and irrigation water supply needs of 2 billion people around the world. As the more easily accessed surface water resources are already being used, pressure on groundwater is growing. In the last few decades, this pressure has been evident through rapidly increasing pumping of ...
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Hydrogeology - A Global Perspective
The field of groundwater hydrology and the discipline of hydrogeology have attracted a lot of attention during the past few decades. This is mainly because of the increasing need for high quality water, especially groundwater. This book, written by 15 scientists from 6 countries, clearly demonstrates the extensive range of issues that are dealt with in the field of hydrogeology. Karst ...
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Case study – benzene contamination - tank battery, Weld County, Colorado
Introduction LTE was requested by Devon Energy Corporation (Devon) to remediate residual soil and groundwater impacts at an exploration and production site in Weld County, Colorado. Soil impacts were found from the surface to 24 feet below ground surface (bgs) and were a result of produced water sump and aboveground storage tank overfills. Benzene concentrations in the groundwater were up to ...
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Example of water level data logger use - case study
Geo Kamp Limited is pleased to present a typical hydrogeologic project using Heron Water Level Data Loggers (referred to as the dipperLog). The accompanying hydrographs represent the data collected for a Test Well located near Lake Simcoe (north of Toronto) in 2010. It was difficult to coordinate the schedule of the water well contractor due to inclement weather (bitterly cold) and the project ...
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Groundwater exploration case study
This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to publish their data on the ...
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Multi-electrode resistivity survey for groundwater exploration in the Harare greenstone belt, Zimbabwe
A multi-electrode resistivity survey, carried out over metasedimentary strata and metavolcanics in the Harare greenstone belt in northeastern Zimbabwe as part of a groundwater resources investigation, illustrates the ability of this technique to produce high-resolution images of the subsurface, which are useful for groundwater resources assessment. The resistivity results provide a clear view of ...
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Groundwater exploration
This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to ...
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