aquifer mapping Articles

  • GroundWater Markup Language (GWML) – enabling groundwater data interoperability in spatial data infrastructures

    Increasing stress on global groundwater resources is leading to new approaches to the management and delivery of groundwater data. These approaches include the deployment of a Spatial Data Infrastructure (SDI) to enable online data interoperability amongst numerous and heterogeneous data sources. Often an important component of an SDI is a global domain schema, which serves as a central structure ...


    By IWA Publishing

  • Assessment of groundwater vulnerability to nitrate pollution caused by agricultural practices

    Environmental risk assessment is a step towards identification, analysis, and classification of risk factors and thus reduction of the possibility of adverse consequences. In this research, a novel approach for environmental risk assessment on groundwater pollution is applied. By combination of aquifer vulnerability DRASTIC map, pollution severity and prioritizing of the plain regions by the ...


    By IWA Publishing

  • Groundwater reclassification for five corners area

    Ralph Penney, president of Penney Engineering, sent a letter in April to Tisbury town officials and property owners around the Five Corners intersection in Vineyard Haven asking for their support for a change in the way the Massachusetts Department of Environmental Protection (DEP) classifies the area's groundwater. Mr. Penney plans to petition the DEP for a change in the area's designation from ...


    By Penney Engineering, Inc.

  • 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

  • Arcane Groundwater problem plagues commercial district

    It was in 1995, when new storm water drains were being put in along the Beach street extension in Vineyard Haven, that Eric Anderson first learned of the serious contamination of the groundwater under his property. He and several other landholders in the area were required by state environmental authorities to begin an extensive program of sampling to find out the source of the pollution, with a ...


    By Penney Engineering, Inc.

  • Application of a GIS-based DRASTIC model and groundwater quality index method for evaluation of groundwater vulnerability: a case study, Sefid-Dasht

    Pollution control and removal of pollutants from groundwater are a challenging and expensive task. The aims of this paper are to determine the aquifer vulnerability of Sefid-Dasht, in Chaharmahal and Bakhtiari province, Iran, using the DRASTIC model. In addition, the groundwater quality index (GQI) technique was applied to assess the groundwater quality and study the spatial variability of major ...


    By IWA Publishing

  • Keynote presenter previews NGWA Conference on Hydrogeophysics and Deep Groundwater

    Andrea Croskrey, PG, of the Texas Water Development Board will give the keynote presentation at the NGWA Conference on Hydrogeophysics and Deep Groundwater, March 20-21 in Denver, Colorado. Focusing on the use of geophysics—from remote sensing to borehole applications—for groundwater studies, the conference also ...

  • What is a Plume? and Why do I Care?

    From The National Groundwater Association   Most of you might question why I want to spend time discussing a subject that is outside of the more traditional ...


    By Arcadis

  • Validation of two applied methods of groundwater vulnerability mapping: application to the coastal aquifer system of Southern Sfax (Tunisia)

    The coastal aquifers system of Sfax Agareb Chaffar Mahres (Southern Sfax) located in the central east of Tunisia is well known for population growth and industrial development. These industrial and agricultural developments have led to the degradation of water quality. In this study, DRASTIC and GALDIT models were integrated with geographical information system (GIS) tools, in order to assess ...


    By IWA Publishing

  • Mapping of freshwater aquifers case study

    Big Pine Key, Florida The Nature Conservancy is coordinating investigations to document the physical and biological changes that will occur on small oceanic islands as a result of sea level rise. Big Pine Key, FL is one of the primary areas of investigation because of extensive previous work and that a large portion of the island is a National Wildlife Refuge and therefore not subject to ...


    By GeoView, Inc.

  • Mapping of freshwater aquifers by GeoView case study

    Big Pine Key, Florida The Nature Conservancy is studying the physical and biological changes that will occur on small oceanic islands as a result of sea level rise. Big Pine Key, Florida is one of the primary areas of investigation because of extensive previous work on the key and because a large portion of the island is a National Wildlife Refuge. As part of the investigation, GeoView ...


    By GeoView, Inc.

  • Report: California’s Reliance on brackish water desalination to increase

    Years of drought in California may result in the state becoming more reliant on brackish water desalination, according to the Pacific Institute. In “The Cost of Alternative Water Supply and Efficiency Options in California,” the Oakland-based nonprofit research institute looks at the costs of potential water supply sources and other economic factors. The institute states: ...


    By Fluence Corporation

  • An Impulse Generator for The Ground penetrating radar

    Abstract In last time ground penetrating radars (GPR) are widely used for search and analysis of varied underground objects of natural and artificial origins. Caves and cavities can also be found and investigated with the GPR's aid. Impulse generator is the key unit, which determine GPR's parameters: depth of penetrating, accuracy et al. Serial power drift diodes are used for ...


    By Transient Technologies LLC

  • Resistivity applications

    Archaeological application • Detection of buried tomb. Mineralisation exploration • Determining the size of ore deposit; • Determining the developing direction of ore deposit; • Mapping the distribution of ...

  • Quantitative Assessment of Regional Rock Aquifers, South-Western Quebec, Canada

    The population of the St. Lawrence Lowlands platform in south-western Quebec, Canada, is heavily dependent on groundwater. The present study summarizes the quantity, quality and sustainability estimations of the groundwater resources found mainly in sedimentary rock aquifers. Results show that the regional groundwater flow in the considered domain of 1,500 km2 is 97.7 Mm3/y with: 86.6% ...


    By Springer-Verlag GmbH

  • Pump/Recharge Rate Affects Saltwater Intrusion

    Untitled Document Many areas of the world use groundwater as their main source of fresh water supply. With the worlds population increasing ...


    By Solinst Canada Ltd.

  • Report documents effects of 40 years of groundwater withdrawal

    The cumulative effects of 40 years of groundwater withdrawals in the Houston-Galveston region are documented in a report from the United States Geological Survey. Decades of extensive withdrawals have caused the land to sink, or subside. The Houston-Galveston region is one of the largest areas of land surface subsidence in the U.S., according to the agency. Water withdrawals started as early as ...


    By Fluence Corporation

  • India's Dangerous 'Food Bubble'

    India is now the world's third-largest grain producer after China and the United States. The adoption of higher-yielding crop varieties and the spread of irrigation have led to this remarkable tripling of output since the early 1960s. Unfortunately, a growing share of the water that irrigates three-fifths of India's grain harvest is coming from wells that are starting to go dry. This sets the ...


    By Earth Policy Institute

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you