Integrating indicator-based geostatistical estimation and aquifer vulnerability of nitrate-N for establishing groundwater protection zones

2015 ◽  
Vol 523 ◽  
pp. 441-451 ◽  
Author(s):  
Cheng-Shin Jang ◽  
Shih-Kai Chen
Keyword(s):  
Groundwater Protection ◽  
Aquifer Vulnerability ◽  
Protection Zones ◽  
Nitrate N ◽  
Geostatistical Estimation ◽  
Groundwater Protection Zones

Survival of Some Pathogenic and Facultative Pathogenic Bacteria in Groundwater

1988 ◽  
Vol 20 (3) ◽  
pp. 227-231 ◽  
Author(s):  
Z. Filip ◽  
D. Kaddu-Mulindwa ◽  
G. Milde
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Salmonella Typhimurium ◽  
Ground Water ◽  
Pathogenic Bacteria ◽  
Groundwater Protection ◽  
Protection Zones ◽  
Model Experiments ◽  
Groundwater Protection Zones

In model experiments carried out in the laboratory the survival of bacteria in groundwater kept at 10±l °C was tested. Only two of the tested bacteria species did not survive longer than 10 - 30 days. Escherichia coli, Salmonella typhimurium, Pseudomonas aeruginosa and other pathogenic or facultative pathogenic bacteria survived up to 100 days or even more in ground-water with or without the addition of sand from an aquifer. These results can be of importance for determining groundwater protection zones.

scholarly journals 3-D geological modelling of the Egebjerg area, Denmark, based on hydrogeophysical data

1969 ◽  
Vol 20 ◽  
pp. 27-30 ◽  
Author(s):  
Flemming Jørgensen ◽  
Rasmus Rønde Møller ◽  
Peter B.E. Sandersen ◽  
Lars Nebel
Keyword(s):  
Groundwater Protection ◽  
Land Area ◽  
Site Specific ◽  
Protection Zones ◽  
Geological Modelling ◽  
Groundwater Protection Zones ◽  
Geophysical Surveys ◽  
Catchment Areas ◽  
Geological Models ◽  
Hydrogeological Mapping

Contamination of groundwater with pesticides and nitrate has compelled the Danish Government to launch a major hydrogeological mapping programme covering about 40% of the land area of Denmark. Numerous geophysical surveys are currently being carried out in order to acquire the necessary data. These new data are crucial for the 3-D geological models that are used in the planning of future water supply and landuse. Normally, site-specific groundwater protection zones (Thomsen et al. 2004) are based on groundwatermodelled catchment areas for each well, but proper 3-D geological models are needed in order to create a valid basis for the groundwater models. Since most of the Danish nearsurface geology is complex, a full geological understanding is required combined with in-depth interpretation of geological and geophysical data.

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