Locate Groundwater Articles
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Lake Remediation - Water Clarification - Case Study
Synopsis: The Dosing of Bio Organic Catalyst has been started in the Lake The automatic Dosing has been ongoing for over four months starting from January 2022 and there is improvement in the water clarity. The aquatic life in the lake is being maintained and no chemicals are added to the water to keep it aesthetically clean. The water at the lake is pumped from various lifting stations across ...
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Site: Residential neighborhoods, Phoenix AZ - Case study
Date Conducted: March 2012 to December 2013 (project in progress) Client: Arizona DEQ Oversite Agency: Arizona DEQ Project Description: Vapor intrusion assessment of over 100 residential units located over a PCE groundwater plume. Hartman providing work scope, overseeing soil gas sampling program to define groundwater contamination, conducting on-site indoor air analysis, overseeing indoor air ...
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Incorporating site-specific analytical data and machine learning to predict environmental site conditions
EnviMetric makes intelligent predictions about the extent of groundwater contamination even when there is no available analytical data regarding contaminant concentrations. Factors such as the site location, release type, property use, and geologic setting are very predictive of how large a groundwater plume will be. EnviMetric uses all this available information to make data-based predictions ...
By Azimuth1
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The Use Of Innovative Groundwater Seepage Detection Techniques - Case Study
INTRODUCTION Groundwater seepage can exacerbate environmental pollution through contaminant transport, pose a threat to dam safety and can also be associated with valuable mineral deposits. Dam safety, environmental remedial works and mineral location normally involve comparatively expensive techniques, but, if the extent and location of groundwater seepage can be accurately predicted, then the ...
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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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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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Searching for Potential Unmarked Graves Near San Antonio, Texas - Case Study
Our client, Terracon, used AGI tools and software in order to identify whether or not there were unmarked graves near a family cemetery and a known historical site for homesteaders near San Antonio, Texas. Process Our client was interested in mapping an area being developed near a cemetery that dated back to 1899. The client used the SuperSting R8/IP, the SwitchBox 112, and 112 electrodes ...
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Locating Groundwater Wells for Fracking Operations in West Texas - Case Study
In June 2014, our clients used AGI resistivity imaging tools to successfully locate a 125-gallon-per-minute groundwater well in West Texas as well as geohazards that could, if left unlocated, cause significant damage to property and increase costs. Process Our clients used the SuperSting R8 Wi-Fi with a SwitchBox 112, passive cables spaced at six meters apart, and a dipole-dipole and strong ...
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Feasibility study of in-situ bioremediation for nitrobenzene-contaminated groundwater
Although many studies have simulated in-situ bioremediation of contaminated groundwater, most of them have not considered hydrochemical conditions and indigenous microorganisms, thus potentially rendering results inapplicable to actual in-situ groundwater bioremediation projects. This study focused on a nitrobenzene-contaminated groundwater site located in Jilin City, China. The actual ...
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Ireland Groundwater Monitoring Program - Case study
To fulfill the EU Water Framework Directive (WFD) requirements, a groundwater monitoring program was established by the Environmental Protection Agency of Ireland. This program focuses on providing information to assess the environmental status of surface and groundwater bodies. Read about the program and the example installation in the Bog of the Ring. Technology Used: OTT Orpheus Mini, OTT ...
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Large TCE Plume with Extensive DNAPL - Case Study
ABSTRACT High density sampling program was key to remediation of soil and groundwater impacted by TCE DNAPL at a former industrial site underlain by river deposits and sedimentary bedrock. CHALLENGES Impacted alluvium consisted of poorly sorted, fine to coarse grained sand. The source area was underlain by an aquitard of silt and clayey silt where dense non-aqueous phase liquid (DNAPL) pooled ...
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Enhanced Vapor Intrusion Mitigation via Horizontal Remediation Wells
Vapor Intrusion (VI) is a potential concern at any building - existing or planned, located near soil or groundwater contaminated with volatile organic compounds (VOCs). Conventional installation technologies (vertical wells) can fall short, especially when large structures such as factories, hangars, and offices buildings are involved because they typically involve expensive and lengthy business ...
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Case Study - Groundwater: 125 GPM Water Well
Groundwater Well Locating for West Texas Fracking Operation Date: June 20, 2014 Site: West-Texas – undisclosed oil and gas field Equipment: SuperStingR8 WiFi with SwitchBox112 with passive cables spaced at 6m. Dipole-dipole and strong gradient array Software: EarthImager2D with a finite element inversion model Results: Resistivity imaging successfully located a relatively high ...
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Construction Aggregate Mining: Sand and Gravel - Case Study
In 1995, we helped a company locate sand and gravel volumes in San Marcos, Texas. This material can be mined and sold for construction purposes. Process The Sting R1 with 47 Dual-Mode Swift electrodes was spaced three meters apart. Two parallel lines were collected eight meters apart to identify conductive silt/clay/shale and resistive sand/gravel areas. Results Sand and gravel zones and ...
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Case Study - Groundwater: Locating Water Wells
South Sudan: 4000 L/min water well Date: February 25, 2015 Site: Yeri Mozo Village, South Sudan, Africa Equipment: SuperStingR8 WiFi, SwitchBox56 and passive cables spaced at 5m. Software: EarthImager2D with a finite element inversion model of dipole-dipole array data. Results: Resistivity imaging successfully located a very high production potable water well with 4000 liter/hour static ...
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Spatio-temporal variation of groundwater contamination using IEA-UEF in urban areas of Jilin City, North-eastern China
Groundwater monitoring wells located in urban areas of Jilin City were sampled from 1980 to 2009 for eight groundwater quality parameters: pH, SO42−, Cl−, NO3−-N, NO2− -N, NH4+-N, F−, and total hardness (TH). The data were analysed by a universal exponential formula based on an immune evolutionary algorithm, and later mapped with the Kriging interpolation method. The primary objectives were ...
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Self-organizing map clustering technique for ANN-based spatiotemporal modeling of groundwater quality parameters
The present study integrates co-kriging as spatial estimator and self-organizing map (SOM) as clustering technique to identify spatially homogeneous clusters of groundwater quality data and to choose the most effective input data for feed-forward neural network (FFNN) model to simulate electrical conductivity (EC) and total dissolved solids (TDS) of groundwater. The methodology is presented ...
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Groundwater and stream E. coli concentrations in coastal plain watersheds served by onsite wastewater and a municipal sewer treatment system
The goal of this study was to determine if onsite wastewater treatment systems (OWS) were influencing groundwater and surface water Escherichia coli concentrations in a coastal plain watershed. Piezometers for groundwater monitoring were installed at four residences served by OWS and five residences served by a municipal wastewater treatment system (MWS). The residences were located in two ...
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The variation of stygofauna along a gradient of salinization in a coastal aquifer
We examined the variation of stygofauna composition collected in wells, along a gradient in groundwater salinity/conductivity in a coastal aquifer from southern Portugal. The studied coastal aquifer is considered vulnerable to salinization due to seawater intrusion, caused by overexploitation of the aquifer. Knowing the response of the stygofauna species to present levels of groundwater ...
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Numerical modeling of aquifer thermal energy efficiency under regional groundwater flow: a case study at Oslo Airport
The main purpose of this paper is to present a robust forward model for simulating extraction and storage of thermal energy in an aquifer. The model is a local three-dimensional finite element model with boundary conditions derived from an analytic large-scale model based on the regional water balance. Numerical investigations and thermo-hydraulic evaluation of a typical dipole ...
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