groundwater association Articles

  • Wastewater and groundwater

    Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With ...

  • Spatial distribution of heavy metals in groundwaters and health risks associated in the Ntem watershed, Yaoundé, Cameroon

    The present study was aimed at bridging the gaps in the knowledge concerning heavy metals (Pb, Cd, Cr, Ni, Zn, Cu, Mn and Fe) concentrations in the groundwaters of the Ntem watershed in Yaoundé. Representative groundwater samples (25 numbers) were collected from five hand-dug wells, and their metal concentrations were assessed as per standard procedures, and deterministic interpolation ...


    By IWA Publishing

  • 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

  • In Search of Ideal Groundwater Treatment

    As surface water supplies become increasingly polluted and difficult to treat, the use of groundwater continues to increase. Every day, more than 77 billion gal of water are withdrawn from aquifers for a variety of uses including human consumption. Worldwide, groundwater makes up 95% of available freshwater, and nearly half of the U.S. population receives all or part of its drinking water from ...

  • 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

  • Case study - Chlorinated groundwater treatment

    Problem A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be done ...

  • Soil and groundwater assessment, Northern England

    Project Remediation Strategies were appointed to assist in the identification of a hydrocarbon contamination source that had resulted in significant vapours within a residential property. Further works to asses the nature and extent of soil contamination were also commissioned, together with detailed vapour risk assessments and subsequent vapour remediation works. ...


    By Remediation Strategies Ltd.

  • Remediation of petroleum hydrocarbons in soil and groundwater

    Client: Power Generation Industry Location: Dagenham, London, England Services: Contaminated land site investigation, risk assessment and remediation services, due diligence    Summary: Our client was able to identify contamination arising from a tenant's activities, and obtain funds for remediation prior to ...

  • Kenya - Groundwater governance case study

    This report presents a case study on groundwater governance in Kenya. The objectives of the study were to: (a) describe groundwater resource and socioeconomic settings for four selected aquifers; (b) describe governance arrangements for groundwater management in Kenya; and (c) identify the relevance of these arrangements for planning and implementing climate change mitigation measures. The report ...


    By IWA Publishing

  • 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

  • Case study - Chlorinated groundwater treatment

    Overview A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be ...

  • Soil and groundwater assessment, south-east England

    Project Remediation Strategies were appointed to undertake a soil and groundwater assessment to assist a client in understanding the potential environmental liabilities associated with the shallow soils beneath part of the site.  The client was undertaking a phased renewal of the site tank farm areas, which required the excavation and replacement of shallow soils to allow for new ...


    By Remediation Strategies Ltd.

  • Sub-watertable landfill groundwater risk assessment

    Client: Waste Management Industry Location: Sub-water table landfill site, UK Services: Data collation and analysis, hydrogeological risk assessment , regulatory liaison and negotiation, Environmental Permit Application support Issues: Sub-water table landfill site, sensitive receptors (major aquifer), potential risk to ...

  • In Situ Bioremediation of Soil and Groundwater: A Case Study

    Untitled Document The subject site is located in downtown Denver, Colorado and was formerly operated as a bulk petroleum storage facility. Bulk storage of gasoline, diesel and fuel ...


    By REGENESIS

  • What Effect Does E-Waste Have On Groundwater?

    Groundwater is one of the most precious resources on Earth. Its yields supply water to nearly every community in the country, and without it, most of us would be driven to drastic measures to accommodate drought conditions. In fact, that very situation is happening in communities across the nation. As groundwater is increasingly negatively ...

  • 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

  • San Diego formation groundwater development and storage potential.

    Groundwater as a resource has been little utilized in San Diego County, California, compared to neighboring counties to the north. The San Diego formation in southwestern San Diego County is one resource that has seen limited utilization historically, but in recent years has been viewed with increasing interest by local agencies for expanded groundwater development. Potential uses include ...


    By Hargis + Associates Inc

  • Future hydrogeologist wants to mitigate groundwater contamination

    NGWA continues its monthly spotlight look at the 2016 Len Assante Scholarship winners from the ...

  • The effectiveness of arsenic remediation from groundwater in a private home

    Abstract Private wells are the source of drinking water for approximately 15% of households in the United States, but these wells are not regulated or monitored by government agencies. The well waters can contain arsenic, a known carcinogen that occurs in groundwater throughout the nation at concentrations that can exceed the Maximum Contaminant Level defined by the U.S. Environmental ...

  • Elevated and variable groundwater iron in rural northwestern Bangladesh

    Over the past 30 years, tubewells have become a ubiquitous source of potable groundwater in South Asia. Considered safer than surface water, groundwater naturally contains minerals that may impact human health; however, few data exist on tubewell water mineral content or its association with human nutritional or health conditions. We surveyed iron concentration in tubewell water across a 435 km2, ...


    By IWA Publishing

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