Locate Groundwater Articles

  • EQuIS milestone

    EQuIS now contains over 15 million chemical/physical discrete monitoring results after the recent completion of the EDMS (Closed Landfills) database migration. Growth for other MPCA Remediation and Solid Waste programs will depend on the rate that labs and contractors adopt the new standard lab and field EDD submittal formats and on associated location establishment. Groundwater and surface water ...


    By EarthSoft, Inc

  • Management and protection of groundwater resources in semi–arid zones: application of hydrochemical methodologies to Essaouira Synclinal Basin, Morocco

    The water resources of the Essaouira basin are characteristic of a semi–arid climate. It is a coastal aquifer located on the Atlantic coastline, corresponding to a sedimentary basin with an area of about 200 km². The geological structures delineate a syncline bordered by the Tidzi diapir of Triassic age which outcrops to the E and S. In the Essaouira basin, a multi–aquifer composed of detrital ...


    By Inderscience Publishers

  • Environmental Data Management Support for a Chemical Site

    Project: Environmental Data Management Support for a Chemical Site Client: Ford Consulting Ltd Location: Lancashire, UK Services: Groundwater and Environmental Data Management, Geographical Information Systems - Support for data migration and environmental data management system Summary: ESI provided data migration ...


    By EarthSoft, Inc

  • Investigating and mapping spatial patterns of arsenic contamination in groundwater using regression analysis and spline interpolation technique

    The present study investigates the hypothesis that arsenic concentrations correlate with tubewell depth, and examines the effectiveness of spline interpolation, specifically completely regularized spline (CRS) and spline with tension (SWT) in estimating the magnitude of arsenic contamination in groundwater in Thanh Tri, a densely populated district located in the southern part of Hanoi City, ...


    By IWA Publishing

  • Groundwater treatment with the use of zero-valent iron in the PRB Technology

    The industrial dumping sites located in the southern provinces of Poland pollute the groundwater with metals. In the article, the possibility of groundwater (polluted by metals) treatment with the use of PRB Technology has been presented. In this technology, the contaminants are removed from the aquifer by the flow of the groundwater through a PRB filled with a special reactive material. The ...


    By IWA Publishing

  • Water sensitive urban design retrofits in Copenhagen – 40% to the sewer, 60% to the city

    Water Sensitive Urban Design (WSUD) is emerging in Denmark. This interdisciplinary desk study investigated the options for WSUD retrofitting in a 15 km2 combined sewer catchment area in Copenhagen. The study was developed in collaboration with the City of Copenhagen and its water utility, and involved researchers representing hydrogeology, sewer hydraulics, environmental ...


    By IWA Publishing

  • White paper on Willowstick technology used for mapping and modeling groundwater systems

    1.0 Introduction Willowstick Technology (the “Technology”) delineates and characterizes subsurface aqueous systems in complex hydrogeologic settings. It has consistently proven valuable in: 1) the diagnosis of seepage through earthen dams and levees; 2) characterizing groundwater infiltration into surface and subsurface mines; 3) tracking pollution plumes influenced by ...


    By Willowstick Technologies LLC

  • Case Study: Laurel Bed Dam

    Background Froehling & Robertson Inc were engaged by the Virginia Department of Game and Inland Fisheries to remediate seepage paths at the Laurel Bed dam. The dam had been leaking in excess of 500 gpm with water leaking in multiple locations. This water supply feeds a popular trout stream. If the dam failed, homes in the valley below the dam could be flooded. Q: ...


    By Willowstick Technologies LLC

  • Climate risk case study : Bulleh Shah paper mills - packages, Ltd. Kasur, Pakistan

    This report assesses the risks posed by climate change to International Finance Corporation's(IFC's) investment in packages' new Bulleh Shah Paper Mills (BSPM) at Kasur, Pakistan, and identifies potential adaptation (risk management) measures that can be used to 'climate-proof' the investment. A number of conclusions can now be drawn regarding climate risks at BSPM. Packages Limited is Pakistan's ...


    By IWA Publishing

  • Pollution Engineering Editor`s Choice Awards 2011

    The RSI ProGreen Chiller Module uses the latest advancements in internal combustion engines to knock down VOC vapors. A chiller requires less oxidization while still using the vapor/contaminant as its primary fuel source for the engine. The Degassing Module can be a stand-alone system or can be installed on an FSI ProGreen Vacuum Truck. Advances in control technology. Increases in energy prices ...

  • A novel approach to determine a resin's sorption characteristics for the removal of natural organic matter and arsenic from groundwater

    The objective of this work was to study the sorption behavior of the strongly basic and macroporous commercial resin IRA 958-Cl for the removal of natural organic matter (NOM) from groundwater in the Melenci settlement located near Zrenjanin (Northern Serbia). The investigation was performed in a pilot plant using native groundwater and the same water after chlorination with sodium hypochlorite. ...


    By IWA Publishing

  • First decentralized wastewater treatment system in Lao PDR

    Wastewater treatment as part of the sanitation system is an important environmental service that is closely linked to water management. The poor sanitation management in Lao PDR generally contributes to wastewater pollution especially in the urban areas. The major water source for urban supply is surface water since most towns are located along the rivers as groundwater ...


    By IWA Publishing

  • Shropshire Permo-Triassic sandstone: Regional groundwater model

    Client: Environment Agency Location: Shropshire Services: Groundwater Modelling Issues: Management of groundwater resources in Shropshire Summary: ESI was commissioned by the Environment Agency to develop a regional groundwater model of the East Shropshire Permo-Triassic sandstone aquifer.  ...


    By ESI Consulting Ltd

  • Upper Colne groundwater model update

    Client: Environment Agency Location: Hertfordshire Services: Groundwater Modelling , Low Flow Studies and Hydroecology Issues: Identification of management options for low flows in the River Gade Summary: ESI developed a groundwater model of the Upper Colne Catchment capable of simulating ...


    By ESI Consulting Ltd

  • Landfill groundwater monitoring network design and construction quality assurance (CQA)

    The site is an active landfill site situated in the north east of England.  The company managing the site was unhappy with the groundwater monitoring infrastructure around the site margins. ESI Ltd was commissioned to advise on locating and designing ten groundwater monitoring wells.  Following agreement with the Environment Agency, we also provided independent construction quality ...


    By ESI Consulting Ltd

  • Lower Mersey and North Merseyside groundwater model: environment agency

    Client: Environment Agency Location: Merseyside Services: Groundwater Modelling Issues: Management of groundwater abstraction within Merseyside Summary: Historic over-abstraction of the Permo-Triassic Sandstone aquifers beneath Merseyside resulted in falling groundwater levels and upflow of saline ...


    By ESI Consulting Ltd

  • Bromsgrove Permo-Triassic Sandstone: Regional groundwater model

    Client: Environment Agency Location: Bromsgrove, UK Services: Groundwater Modelling Issues: Management of groundwater resources in the Bromsgrove area Summary: ESI was commissioned by the Environment Agency to develop a regional groundwater model of the Bromsgrove Permo-Triassic sandstone ...


    By ESI Consulting Ltd

  • Saline intrusion groundwater model: water company

    Client: Water Industry Location: Sussex Services: Groundwater Modelling, Water Quality and Groundwater Protection Issues: Impact on deployable groundwater resources from saline intrusion within a Chalk aquifer Summary: ESI was commissioned to produce a scoping model to simulate the effect of ...


    By ESI Consulting Ltd

  • Modelling of groundwater flow and heat transport

    Client: Transport for London Location: London Services: Groundwater Modelling Issues: Identifying the potential effects of pumping excess heat to the Chalk aquifer Summary: ESI was commissioned to test the feasibility of one of the possible solutions identified to prevent temperatures on the ...


    By ESI Consulting Ltd

  • Land quality baseline assessment of a food manufacturing facility

    Client: Food Manufacturer Location: South-Wales, UK Services: Contaminated Land Site Investigation, Due Dilligence, Rapid Site Investigation. Summary: A food manufacturer wished to sell a drink packaging operation, and needed an environmental investigation to support the marketing of a site. ESI initiated our Rapid Phase ...


    By ESI Consulting Ltd

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