borehole water well Articles

  • Water Active: Borehole Management in Civil Engineering Projects

    Groundwater wells are common to many civil engineering schemes and their operational performance can play a crucial role in the successful delivery of a project, whether used for construction dewatering, alternative water supplies for facilities or any other application , the well performance must be optimized and high levels of operational efficiency and service availability achieved. A ...


    By Geoquip Water Solutions

  • Inflatable Packers for the Water Well Developments and Maintenance

    Replacement Inflatable Packers and Elements manufacture inflatable packers for the water well, borehole development and maintenance, including high pressure inflatable packers for hydro fracturing and block caving ...

  • Top Water/ Borehole Drilling Companies in Uganda (East Africa)

    Rural water being a source for health, an essential nutrient and a building block for peoples’ lives in local communities cannot be sustained without external support in form of boreholes as they are the ‘surefire’ answer to providing fresh water in rural communities. A borehole is simply a deep-hole or a shaft sunk into the earth purposed ...

  • Borehole logging case study

    Corozal, Puerto Rico GeoView was tasked to conduct borehole geophysical logging of at a groundwater extraction well in the rural area of the Municipality of Corozal, Puerto Rico. Prior groundwater tests indicated possible contamination of the groundwater. The study area was primarily underlain by stratified, mostly dark gray basaltic tuff, andesite and basalt porphyry rocks assigned to ...


    By GeoView, Inc.

  • Borehole Video Systems – Making A Difference…

    This article was originally published in the May 2009 issue of Geodriling International. Mike Deed, Managing Director of Geoquip Water Solutions Ltd, considers how the Laval R-Cam 1000 portable downhole video camera could revolutionise the borehole inspection industry. THE ability to see into a deep borehole has been an aspiration for well drillers, well owners, and geologists ...


    By Geoquip Water Solutions

  • Evaluation of a Horizontal Well

    Background: Air Sparging Air sparging is an in-situ remediation technology where air is injected into the saturated zone of an aquifer. It is an alternative to conventional ex-situ pump and treat systems for remediation of contaminated ground water. It is necessary to understand the pattern of air flow that will occur in the subsurface in order to determine the optimal placement, ...

  • Pathogenic features of heterotrophic plate count bacteria from drinking-water boreholes

    Evidence suggests that heterotrophic plate count (HPC) bacteria may be hazardous to humans with weakened health. We investigated the pathogenic potential of HPC bacteria from untreated borehole water, consumed by humans, for: their haemolytic properties, the production of extracellular enzymes such as DNase, proteinase, lipase, lecithinase, hyaluronidase and chondroitinase, the effect ...


    By IWA Publishing

  • Rehabilitation techniques - Use of combination chemical for borehole rehabilitation

    Geoquip Water Solutions, in partnership with Aquabiotics Industrial and Laval Underground Systems, has been developing a borehole maintenance programme for the last ten years and their programme, which incorporates the BoreSaver ...


    By Geoquip Water Solutions

  • Extraction well design for DNAPL recovery.

    The potential for downward migration of dense nonaqueous phase liquid (DNAPL) into deeper portions of a saturated hydrogeologic unit has important implications for successful groundwater remediation. Little information has been published regarding the design of extraction wells that allow DNAPL recovery without simultaneously creating a conduit for cross contamination by vertical migration ...


    By Hargis + Associates Inc

  • Scanning proposed borehole locations for Utilities case study

    Environmental and engineering firms often are tasked with performing soil borings for monitor well installation as part of a Phase II Environmental Site Assessment. This task becomes more challenging when the borings are to be installed in gasoline stations, right of ways or other areas where there are numerous underground utilities that are either unmarked or not properly located. GeoView can ...


    By GeoView, Inc.

  • Well-Field Mechanics for In-Situ Mining

    Over the last several decades in-situ leach mining has become increasingly popular. Conventional mining produces tailings, runoff, and considerable land disturbance—all requiring significant rehabilitation. With in-situ leach mining methods (see diagram below), disturbance is reduced because only multiple boreholes are drilled for recovery. Rehabilitation is much simpler, consequently, the ...


    By In-Situ, Inc.

  • Abandoning Monitoring Wells: Safety Issues

    Monitoring wells are typically constructed to gauge the extent of contamination, assess water quality and conduct other hydrogeologic studies. Depending on its objective, the monitoring well may remain in use or may be abandoned permanently. When declared inactive, the well is many a times left as it is. Open unused wells are hazardous to life and environment: • Contamination may spread from one ...

  • Measuring and interpreting gas flow from landfill boreholes case study

    Current landfill gas measurement practice for measuring the gas composition is well understood, and there are standard procedures and instruments available to analyse the gas. It is also current recognised practice to measure the gas 'flow' from boreholes to monitor the production of gas in a landfill site. If care is taken to make the measurement in the same way each time, changes in the ...

  • ECSMGE CONFERENCE 2015: Managing the Clogging of Groundwater Wells

    This is the poster or summary of a paper being presented at the XVI ECSMGE  - European Conference on Soil Mechanics & Geotechnical Engineering - in Edinburgh from 13th to 17th September 2015. Groundwater wells are common to many civil engineering projects and their operational performance can play a crucial role. The wells may be part of a construction dewatering system, ...


    By Geoquip Water Solutions

  • Why Bentonite Hurts Well Production: The Case for Biopolymer Drilling Fluid

    Bentonite is a naturally-occurring clay material, largely composed of the mineral, sodium mont-morillonite. The dominant property of bentonite is that it swells to many times its dry volume when hydrated by water, forming a viscous fluid with high gel strength. This makes bentonite an excellent product when used as a sealant, for preventing the influx of surface water into a well, sealing ...

  • The Future of Drinking Water

    Predicted future growth in population numbers and rising sea levels mean demand for drinking water will continue to increase just as the natural availability of freshwater decreases. It is likely that brackish groundwater will be an important source of drinking water in the future, but the current methods used to produce fresh water from this source are expensive in terms of their energy use and ...


    By Boode Waterwell Systems

  • An assessment of microbiological water quality of six water source categories in north-east Uganda

    Target 7C of the Millennium Development Goals is to “halve, by 2015, the proportion of people without sustainable access to safe drinking water and basic sanitation”. However, the corresponding indicator measures the “proportion of population using an improved drinking water source”. This raises the question of whether “safe” and “improved” can be used interchangeably. This paper tests this ...


    By IWA Publishing

  • Coliform status of water bodies from two districts in Ghana, west Africa: implications for rural water resources management

    Investigations were conducted on the total and faecal coliform status of streams, hand-dug wells and boreholes highly patronised by communities in the West Akim and Kwaebibirem Districts, Eastern Ghana. Total coliform values obtained range from 60–2,672 cfu, 0–680 cfu and 0–128 cfu for streams, hand-dug wells and boreholes, respectively. Faecal coliform values similarly range from 31–1,988 cfu, ...


    By IWA Publishing

  • Measuring Static Water Levels Made Easier with Eno Scientific

    The Well Sounder 2010 PRO is a sonic water level meter, designed and manufactured by Eno Scientific, to measure static water level in wells, piezometers or boreholes. This portable handheld unit uses sound waves to measure the distance from the top of the well to the water level. This eliminates the need to lower anything into the well. Unlike standard water level tapes these acoustic meters are ...


    By Eno Scientific

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