aquifer Articles

  • The London aquifer

    The aquifer beneath London is subject to a considerable number of stresses including rising groundwater levels, abstraction sustainability, artificial recharge, saline intrusion, groundwater flooding, and the growth of ground source energy.  ESI has recently undertaken two key projects for the Environment Agency to aid the management of these pressures in a sustainable and cost effective ...

  • Characterising aquifer treatment for pathogens in managed aquifer recharge

    In this study the value of subsurface treatment of urban stormwater during Aquifer Storage Transfer Recovery (ASTR) is characterised using quantitative microbial risk assessment (QMRA) methodology. The ASTR project utilizes a multi-barrier treatment train to treat urban stormwater but to date the role of the aquifer has not been quantified. In this study it was estimated that the aquifer barrier ...


    By IWA Publishing

  • Characterising aquifer treatment for pathogens in managed aquifer recharge

    In this study the value of subsurface treatment of urban stormwater during Aquifer Storage Transfer Recovery (ASTR) is characterised using quantitative microbial risk assessment (QMRA) methodology. The ASTR project utilizes a multi-barrier treatment train to treat urban stormwater but to date the role of the aquifer has not been quantified. In this study it was estimated that the aquifer barrier ...


    By IWA Publishing

  • Sparta aquifer master plan

    Client: Union County Water Conservation Board Completion Date: 2004 Services Provided Hydrogeologic modeling Evaluate alternative supplies Aquifer storage and recovery Dam and reservoir Wastewater reuse River supply Conservation 65-MGD river intake ...


    By Burns & McDonnell

  • Method for remediation of aquifers

    The US Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of contract F41624-99 C-8033 awarded by the United States Air Force Material Command. BACKGROUND OF THE INVENTION 1. Field of the InventionThis invention relates to the remediation of contaminated ...


    By EOS Remediation, LLC

  • Aquifer storage & recovery

    Client: City of Wichita, Kansas  Completion Date: November 2001  Services Provided Program management Hydrogeological engineering Water quality monitoring Design criteria development Water accounting system Public information program Permitting agency reviews ...


    By Burns & McDonnell

  • Abandon Well Contaminate Aquifer

    This article points out the magnitude of this urgent issue.  An abandoned well becomes an opening into an aquifer which is likely to introduce contamination.  Filling it in is a critical component of protecting the well water supply.  Click here to read the ...

  • Investigating cross-contamination of aquifers

    Shallow aquifers can cross-contaminate deeper aquifers through penetration of an intervening aquitard, via sandy intervals in the aquitard, along well casings, across long well screens, or around aquitard pinchouts. Distinguishing among these potential pathways requires the use of evaluation tools that may support or eliminate certain pathways. These tools include groundwater gradient and ...


    By Springer

  • Union county aquifer restoration

    Client: Union County Water Conservation Board  Completion Date: 2003  Services Provided 65-MGD river intake Mechanically cleaned bar screen Two traveling water screens Quarter-mile-long access bridge with service deck Four 15,050 gpm vertical turbine intake pumps 48-inch raw water ...


    By Burns & McDonnell

  • TCE Remediation in Saprolite and Bedrock Aquifers

    Site Summary Subsurface investigations at this operating manufacturing facility revealed TCE contamination in saprolite and bedrock aquifers. The complicated site geology created the need for a remedial strategy effective in tight soil and fractured bedrock. Accelerated bioremediation using HRC was selected for a pilot study because its use offered a remedial method that would not interrupt ...


    By REGENESIS

  • Mathematical modeling for solute transport in aquifer

    Groundwater pollution may occur due to human activities, industrial effluents, cemeteries, mine spoils, etc. This paper deals with one-dimensional mathematical modeling of solute transport in finite aquifers. The governing equation for solute transport by unsteady groundwater flow is solved analytically by the Laplace transform technique. Initially, the aquifer is subjected to the spatially ...


    By IWA Publishing

  • Virus Transport Experiments in a Sandy Aquifer

    Abstract  The occurrence of human enteric viruses in ground water has been well documented in the literature. Bacteriophages such as MS-2 and PRD1 have properties similar to pathogenic human viruses suggesting that bacteriophages can be used as proxies for virus transport. The objective of this study is to investigate a “worst case scenario” for virus transport in a ground water aquifer, ...


  • Mapping of freshwater aquifers case study

    Big Pine Key, Florida The Nature Conservancy is coordinating investigations to document the physical and biological changes that will occur on small oceanic islands as a result of sea level rise. Big Pine Key, FL is one of the primary areas of investigation because of extensive previous work and that a large portion of the island is a National Wildlife Refuge and therefore not subject to ...


    By GeoView, Inc.

  • The importance of groundwater monitoring

    Groundwater monitoring is an essential element in any environmental information system. Based upon validated groundwater monitoring data, information is derived on which decisions can be made. Constant monitoring provides the necessary data input for your smart environment and is basically the basis of the decision making process concerning spatial planning and climate change adaptation. As in ...


    By Eijkelkamp Soil & Water

  • 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 ...


    By Advanced Geosciences, Inc.

  • Comparison of Reducing Agents for Dechlorination in a Simulated Aquifer (PDF)

    A simulated aquifer system (Aquifer Simulation Vessel – ASV) was used to study the efficacy of various reducing agents to assist microbial dechlorination. The soil samples are homogenized and the soil is packed into 6.0-foot long tubes with an internal diameter of 5.75 inches. Flow rates can be calibrated for flow at 0.1 to 2.0 feet/day. The system has a volume of 2025.44 in3.  A solution of ...


    By REGENESIS

  • A GIS-based methodology to delineate aquifer recharge areas

    A GIS-based methodology to delineate risk areas for contamination of groundwater resources is presented by identifying recharge conditions to the aquifer. Identifying the recharge areas is based upon surface and subsurface geologic conditions that may control the risk of potential oil spill contaminants into the aquifer. This study uses the Chicot aquifer system in southwest Louisiana as a pilot ...


    By Inderscience Publishers

  • DOD evaluates bioaugmentation for remediating low-pH aquifers

    The US Department of Defense (DOD) has completed pilot-scale work on the 'MAG-1' site at Fort Dix, NJ, to test suitability of anaerobic bioremediation for an aquifer with low pH. Project results will be used to design full-scale ground-water treatment at MAG-1. In addition, technical criteria gained from the demonstration will be integrated into DOD’s remediation strategy for its many facilities ...

  • Fate of selected pharmaceuticals and their metabolites in soil aquifer treatment

    Through a series of long-term column experiments, the fate of three common pharmaceuticals (carbamazepine (CBZ), diclofenac, and indomethacin) and their major phase I metabolites in soil aquifer treatment (SAT) were monitored. CBZ concentration increased by a factor of two (from 37 to ca. 70 ng/L) regardless of the treatment conditions, and its metabolites, ...


    By IWA Publishing

  • The chemical evolution of groundwater in the Kerman plain aquifer, Iran

    A comprehensive hydrogeochemical study was carried out in the Kerman Plain Aquifer, Iran. Groundwater samples were collected from 58 sites. Groundwater was analysed for major constituents (Na+, K+, Ca2+, Mg2+, Cl−, SO42− HCO3−. Different methods including composite diagrams, saturation indices and ...


    By Inderscience Publishers

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