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groundwater monitoring system Applications

  • Continuous Monitoring of Groundwater

    The Sorbisense method allows for measuring the average concentration of substances in groundwater over a period of up to 1 month with only one sample.

    The system provides methods for measurements in both unsaturated and saturated zone and provides access to dynamic boundaries of contaminants and more realistic risk assessments. For example, through direct measurements of seepage from contaminants and by continuous measurement of emissions from cropland.

    By SORBISENSE based in Tjele, DENMARK.

  • Video Inspection of Monitoring Wells

    GeoVISION borehole video camera systems are used to visually inspect monitoring wells.

    By Allegheny Instruments, Inc. based in Monterey, VIRGINIA (USA).

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    Gas analysis & monitoring system for soil degassing

    The migration of magma towards the surface in a volcano is usually accompanied by the release of gas that was previously dissolved in the magma itself. In an open conduit volcano, most of the gas escapes through the main conduits of the volcano and then through the craters. However, a significant proportion (approximately 10%) of the total quantity of gas can escape laterally through faults and fractures that are normally present in the flanks of a volcano. Therefore, increases in the amount of gas emitted usually indicate the initial stages of magmatic migration towards the surface.

    By ETG Risorse e Tecnologia based in Montiglio, ITALY.

  • Monitoring of VOCs in Porewater

    Monitoring VOCs in porewater in the unsaturated zone is now possible.

    Sorbisense regularly offers new options for using the patented Sorbicell, which is used to monitor surface water, wastewater and groundwater.

    The latest is almost as “ground-breaking” as the SorbiCell itself. Until now it has been difficult, if not impossible, to directly monitor for volatile substances in pore water in the unsaturated zone. But the environmental consultancy firm Ejlskov A/S in Aarhus combined the use of Sorbisense sampling equipment with the proven technology of soil water samplers. With this combination, a practical new method is made available, which allows for monitoring the presence of porewater-dissolved VOCs above the groundwater table. This provides a significantly improved basis to define and determine the leaching risk to the groundwater, and thus allows for better and more cost-efficient decisions to prevent the pollution in reaching the groundwater.

    A simple construction with multiple options

    The application uses SorbiCell VOC combined with suction cells, soil water samplers. When installed correctly, and applied with the correct procedures, the suctions cells extract capillary bound water from the soil matrix. The system demands no other resource than a container that is put under vacuum. The vacuum in the container then ensures a flow through of the Sorbicell over a period of time, fx. 2-3 weeks. The method is highly suitable for monitoring a site over longer periods of time.

    By SORBISENSE based in Tjele, DENMARK.

  • Geotechnical Applications

    Pore pressure variability and control is one of the most significant aspects of Geotechnical Engineering practice related to slope stability, underground openings, foundation of heavy structures, and water retention facilities. Pore pressure effects are most often controlled by natural small-scale hydrogeologic details. Characterization and management of pore pressures requires closely-arrayed repeated measurements to determine the effects of these details for design of appropriate mitigation measures, for performance monitoring and control of the selected mitigation measure. Since the late 1970’s the Westbay System has been used on some of the largest landslide studies in the world.

    By Westbay Instruments based in Burnaby, BRITISH COLUMBIA (CANADA).

  • Contaminant Site Investigation Applications

    Characterization of contaminated groundwater requires detailed monitoring to eliminate data gaps, improve predictive numerical models, and track remedial efforts. The Westbay System is a reliable, cost-effective technology for obtaining detailed information, enabling groundwater professionals to carry out comprehensive and defensible contaminant site investigations and long-term monitoring.

    By Westbay Instruments based in Burnaby, BRITISH COLUMBIA (CANADA).

  • Monitoring Well Inspection With 3/4-inch Video Camera

    Allegheny Instrument's Nano downhole camera is used to visually inspect groundwater monitoring wells from 1-inch diameter and larger to depths of 1,000 feet with the Heavy Duty hand reel system and depths of 2,000 feet with the Deluxe motorized winch.

    By Allegheny Instruments, Inc. based in Monterey, VIRGINIA (USA).

  • Water Data Management Solution for Urban Hydrology

    Use KISTERS solutions to manage all of the various data from your Urban Water Management programs. From water distribution to water treatment, infiltration and inflow studies, groundwater, as well as long term precipitation monitoring and real time control systems. An optional water quality module is also available to manage your discrete sample data.

    By KISTERS group based in Aachen, GERMANY.

  • Dye Tracing

    Monitoring the dilution and movement of a tracer introduced into the water column provides an excellent means of determining the path that may be followed by a discharge and the rate at which dilution is likely to take place. Fluorescent dyes such as Rhodamine, Fluorescein or Agma are the most frequently used tracers for such investigations. Chelsea Technologies has been providing dye tracing systems for over 30 years. Typical applications include sub-sea pipeline leak detection, pollution studies, natural water flow analysis (rivers, lakes, ocean currents, cave water flows, groundwater filtration etc), sewer and storm water drainage analysis. The Chelsea systems can be configured for a wide variety of tracers, are highly sensitive, robust, and deliver real-time data. They can be moored, profiled, towed or affixed to ROV / AUV platforms.

    By Chelsea Technologies Group based in West Molesey, UNITED KINGDOM.

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