groundwater discharge Articles

  • Case Study - Groundwater Discharge Permit - Plymouth, Massachusetts

    The process of obtaining a groundwater discharge permit for a subdivision scale septic absorption system was faciliated by using the advanced GIS features within EnviroInsite. Geologic features were downloaded and presented at the site scale along with the subdivision boundary and potential downgradient receptors. A cross-section was created showing the detailed soil descriptions, water levels ...


    By EI LLC

  • Control Algae and Improve the Water Quality in Waste Stabilization Ponds

    Due to population growth, accelerated urbanisation and economic development, the quantity of waste water generated is increasing globally. Mainly in low-income areas, a large proportion of the waste water is discharged directly in the environment. When the waste water is treated, the treatment plants may not remove certain pollutants that can have a negative impact on the people and ecosystem. ...


    By LG Sonic

  • Application of thermal remote sensing to delineate groundwater discharge zones

    The paper explores whether thermal anomalies at the surface identified by remote sensing allow for the delineation of groundwater discharge zones. The methodology is based on the principle that in shallow groundwater systems, upward fluxes of deep groundwater discharge reduces seasonal temperature variation in layers close to and at the surface. Thermal anomalies were identified by Landsat data ...


    By Inderscience Publishers

  • Evaluation of submarine groundwater discharge into the northern Bohai Bay, China using 226Ra

    Submarine groundwater discharge (SGD) has been widely recognized as a significant source of water and dissolved material transport from land to ocean. To quantify SGD into the northern Bohai Bay, China, naturally occurring radium isotope (226Ra) was measured in water samples collected along two transects in September 2012. Based on a tidal prism model, two different flushing times of the ...


    By IWA Publishing

  • Estimating the submarine groundwater and nutrients discharge of Yellow River delta with cross-section method

    In this paper, cross-section method was used to estimate the groundwater and nutrients discharge fluxing to the Bohai Sea from the Yellow River Delta. The flux of shallow phreatic groundwater (within 10 m) in the Yellow River Farm discharging into sea was 2.9 × 10−5 m3/m d in 2004 and 3.1 × 10−5 m3/m d in 2005. Time distribution monthly mean flux is consistent with the Yellow River's runoff but ...


    By IWA Publishing

  • Impact of Aggregate Extraction Activities on Cold Water Discharge, Groundwater in a Watershed Context (PDF)

    Regional-scale groundwater flow and thermal transport modelling was completed as one component of a multi-disciplinary subwatershed study for a portion of the Credit River, west of Toronto, Canada. Aggregate extraction activities in the area have the potential to alter the groundwater flow system. The concern regards the quantity and temperature of groundwater being discharged to streams and ...


  • Groundwater recharge and discharge analysis for land use conditions suitable for the hydrology and ecology of semiarid regions

    Land use is critical for the hydrology of arid/semiarid regions with fragile/valuable ecosystems. Using Western Jilin as proxy for arid/semiarid, four land use conditions were investigated for the sustainability of fragile/valuable ecosystems – land use conditions for 1930 (pre-development), 2010 (post-development), forestland and grassland. For forestland/grassland, barren/bare-lands and ...


    By IWA Publishing

  • Groundwater & Wastewater applications notes

    The Clean Water Act (CWA) and Resource Conservation and Recovery Act (RCRA) were designed to limit the amount of contaminants that are discharged into waterways and combat the level of organic pollution in the environment. Horizon Technology takes a strong stand on these topics and offers many Application Notes regarding the ...


    By Horizon Technology, Inc.

  • Groundwater and contaminant transport modelling

    Client: Nuclear Industry Location: Cumbria, UK Services: Radioactive waste consultancy, hydrogeological risk assessment Issues: Potential risk to groundwater, environment and human health. System conceptualisation Summary: ESI developed a FEFLOW finite element model of the groundwater system in the ...

  • Soil and Groundwater Clean-up

    CLIENT: Homeowner/Insurance Company LOCATION: Hopatcong, NJ PROJECT TYPE: Soil and Groundwater Clean-up PROJECT DESCRIPTION: Brennan Environmental, Inc. was retained jointly by a homeowner and their insurance company to complete a soil and groundwater clean-up. An aboveground heating oil tank burst in the basement of their home, spilling approximately 200 gallons of oil onto the floor of ...


    By Brennan Environmental, INC.

  • Dynamics of nitrate & perchlorate in groundwater.

    The Apache Powder Superfund Site is located in Cochise County, Arizona, approximately 50 miles southeast of Tucson. The site was listed on the National Priorities List pursuant to CERCLA in 1990. Principal groundwater chemicals of concern (COCs) include nitrate-nitrogen (nitrate-N) and perchlorate. Concentrations of nitrate-N exceeding 500 mg/l and 2,300 mg/l have been detected in the “shallow ...


    By Hargis + Associates Inc

  • Contamination of groundwater and the risk to human health

    Groundwater is a major source of drinking water in many parts of the world. In industrialised countries, there is increasing concern that groundwater reserves are being contaminated by industrial effluents and the chemical pesticides and fertilizers used in intensive farming. This paper compares some of the existing guidelines for acceptable concentrations of certain common contaminants in ...


    By Inderscience Publishers

  • The application of groundwater modelling to simulate the behaviour of groundwater resources in the Ramhormooz Aquifer, Iran

    In this study, groundwater modelling was proposed as management tool in Ramhormooz Plain, south western Iran. After definition of a conceptual model, the necessary data were defined into various packages of MODFLOW. Subsequently, the model was calibrated by trial and error estimation and the results were finally optimised by PMWIN through PEST code. After verification process, the model was used ...


    By Inderscience Publishers

  • Oil skimmer prevents groundwater pollution

    Idaho Recycling/Consulting and Associates (IRC) of Glenn's Ferry, ID helps small generators of industrial wastewater prevent groundwater pollution and comply with environmental regulations by recycling contaminated water, a method that is less expensive than disposing of fugitive oil, solvents, gasoline and other hydrocarbons. A typical IRC recycling system for such small generators as truck ...


    By Abanaki Corporation

  • New Spanish regulation on groundwater protection

    On 22 October it was issued Royal Decree 1514/2009 regulating the protection of groundwater against pollution and deterioration. The legal framework of this Royal Decree is formed by Directive 2000/60/EC (WFD) in particular Article 17, and Directive 20006/118/EC. The main objectives are to prevent or limit groundwater pollution and to establish criteria and procedures to assess their chemical ...

  • Gasoline Contaminants in Groundwater - Case Study

    Site Overview Active gas station in Sebring, FL FDEP Site Number: 8629375 Contamination Gasoline contaminants in ground water Two site features that have long been a detriment to chemical oxidant treatments at sites have recently been overcome by EN Rx. These are free product treatment ...


    By EN Rx

  • 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 ...


  • Industrial wastewater - who discharges what and who pays for the cleanup?

    Canada's renewable water supplies are being threatened by vast amounts of municipal and industrial waste being disposed of in rivers, lakes and other marine areas. Those industries largely responsible are not paying their share for the clean up according to Statistics Canada. The Industrial wastewater business is huge involving water costs of $1.7 billion and water treatment costs of $656 million ...


    By GLOBE Foundation

  • Natural and human-induced impacts on coastal groundwater

    Groundwater is the main source of potable water in most areas of Mazandaran province, like Sari and Babol city. Thus the safety of groundwater supplies is very important in these regions.  Unfortunately attention to groundwater quality has remained limited in Iran. In recent years, the growth of industry, technology, population, and water use has ...


    By University of Tehran

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