groundwater monitoring pump Articles

  • Effective Groundwater Monitoring Using Dedicated Pumping Tubes

    This article describes a groundwater monitoring procedure that does not require decontamination of pumping equipment, eliminates the chance of cross contamination between wells, and uses a surface pump.  Two surface pumps are described, one for water level depths less than 25 feet and one for water level depths greater than 25 feet. Install Dedicated Pumping Tubes ...


    By RotaPump, Inc

  • Optimal groundwater contamination monitoring using pumping wells

    This study presents a new method for selecting monitoring wells for optimal evaluation of groundwater quality. The basic approach of this work is motivated by difficulties in interpolating groundwater quality from information collected for only few sampled wells. The well selection relies on other existing data relevant to contaminant distribution in the sampling domain, e.g. predictions of ...


    By IWA Publishing

  • Tunnelling in Chalk: Groundwater monitoring and risk assessment

    Morgan Est is constructing a tunnel to carry high voltage electricity cables between two electrical substations.  The tunnel will mostly be excavated in Chalk, with some excavation occurring in the Thanet Sands. ESI was appointed as Morgan Est’s environmental consultant for the project and has managed liaison between Morgan Est, regulators and other stakeholders over the last four ...

  • Monitoring groundwater resources for Municipalities - Case Study

    Background The City of Tucson is located in the Sonoran Desert in southwest United States (U.S.), approximately 100 km north of the Mexico-U.S. border. Tucson Water operates more than 215 groundwater wells, covering more than 300 square miles, providing more than 37 billion gallons (140 million m3) of potable water to its 730,000 inhabitants each year. The region receives only 12 inches of ...


    By Van Essen Instruments

  • Groundwater pump & treat and SIPEX skimmimg system

    GRS has supplied and installed a system for the abstraction of free-phase floating creosote contamination. The system comprises frequency controlled submersible pumps for precise hydraulic control and our motorised interface tracking system which, due to large local water table fluctuations, was modified to provide a product/water interface tracking range of 5m.Abstracted groundwater is pumped to ...


  • Who Owns Groundwater?

    California’s drought underscores the need to improve how the state - and the rest of us - divvy up a resource in demand. Grapevines march across wires strung along rolling hills, their little trunks improbably supporting heavy black fruit. Cindy Steinbeck’s family has been farming this land since 1920. They grow Zinfandel, Viognier, Cabernet, Merlot, and Petite Syrah grapes but are ...


    By Ensia

  • Low Flow Groundwater Sampling Using RotaPump Inertial Lift Pump

    This article tells you how to perform low flow groundwater sampling using a portable, surface-mounted pump with no decontamination required before each use and  no chance of cross contamination between wells. An inertial lift pump moves a dedicated (stored in the well) pumping tube rapidly up and down.  A one-way valve on the bottom admits water on the down stroke and ...


    By RotaPump, Inc

  • Reductive Biotransformation of Explosives Compounds in Groundwater

    Untitled Document ABSTRACT: Earth Tech Inc. has successfully completed two bench-scale studies demonstrating the treatment of explosives contaminated groundwater by ...


    By REGENESIS

  • Groundwater: Low-flow Purging and Sampling

    Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource.  Maintaining its quality and quantity and avoiding pollution are set to be ...


    By Geotech

  • The In Situ Bioremediation/Groundwater Remediation Process

    In-situ groundwater bioremediation is a technology that encourages growth and reproduction of indigenous microorganisms to enhance biodegradation of organic constituents in the saturated zone. In-situ groundwater bioremediation can effectively degrade organic constituents which are dissolved in groundwater and adsorbed onto the aquifer matrix. The Adventus In Situ Bioremediation/Groundwater ...


  • Groundwater Contamination Plume Remediation - Case Study

    19 CMT Multilevel Systems Successfully Installed in Challenging  A facility in Pontypool, Wales, UK was once the location of a plastic forming plant. Over time, chemicals produced through the plastic forming processes were lost into the groundwater beneath the facility, creating a large contaminant plume. Years later it was determined that the plume is ...


    By Solinst Canada Ltd.

  • GE Leakwise Application Notes: Groundwater Remediation

    The unique capabilities of the Leakwise* Oil on Water Monitoring Systems enable remote measurement of key parameters for: Site assessments Recovery wells and remediation systems ...


    By GE Analytical Instruments

  • In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology

    A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...


    By AECOM

  • A new no-purge, non-displacement groundwater sampler

    What Is It? The HydraSleeve sampler is designed to collect representative water samples from monitoring wells without purging. The disposable sampler collects a discreet sample from only the 'fresh formation' water in the screened interval of the well. It is fast, inexpensive, simple to use, generates no purge water and collects a sample suitable for all analytical parameters. Why It Works The ...


    By EON Products Inc.

  • Groundwater contamination of 1,1,1-TCA, PCE - Manufacturing facility

    LOCATION:  Glen Cove, New YorkPROJECT DATE:  September 2000 to presentCLIENT:  Confidential BACKGROUND: Groundwater in a sand and gravel aquifer beneath this active manufacturing facility was contaminated with 1,1,1-TCA (concentrations up to 480 mg/L), PCE, and their degradation products. The site owner, faced with a long term (in excess of 100 years) and expensive pump and treat ...


    By Terra Systems, Inc. (TSI)

  • Groundwater Remediation System Cleans Up Oil Spill

    A customer in TX was recently in some hot water with the local municipal water department. Due to excessive rains near the coast of Texas, the water levels have been higher than usual. The company fills storage tanks with diesel at its facility. However one day the tanks were overfilled and instead of going into the ground, they diesel dispersed out via the high rain water and into the local ...


    By Abanaki Corporation

  • In-Situ Groundwater Remediation of Heavy Metals at an Active Manufacturing Facility

    Tetra Tech & Adventus deploy In-Situ Groundwater Remediation of Heavy Metals at an Active Manufacturing Facility. Site History: 1966 to the present: Manufacturing of various automotive components 1966 to1984: Operation of chromium plating 1983: Release of metal plating rinse water 1983 to 1989: Excavation of soil and operation of 4 groundwater recovery wells 2006: ...


  • Study of groundwater using visual MODFLOW in the Manas River Basin, China

    For effective groundwater management of a basin, it is essential that a careful water balance study be carried out. A three-dimensional transient-state finite difference groundwater flow model is used to quantify the groundwater fluxes and analyze the dynamic changes of groundwater level. After monitoring groundwater levels for 43 typical observation wells through a simulation study of the ...


    By IWA Publishing

  • Groundwater levels under climate change in the Gnangara system, Western Australia

    The Gnangara system is the main source of freshwater for Perth, Western Australia. However, aquifers in the region are under severe stress due to a drying climate, intensive pumping and changes in land use. The aim of this study is to apply the mean rainfall cumulative deviation and Mann-Kendall analyses at 77 monitoring bores to investigate the response of the water table to key recharge ...


    By IWA Publishing

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