Surface geoelectrics for groundwater pollution and protection studies

Mazac, O.; Kelly, William E.; Landa, Ivan

doi:10.1016/0022-1694(87)90100-4

Cited by 61 publications

(16 citation statements)

References 9 publications

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“…For example, Lunt et al (2004) used GPR measurements to develop a model for the evolution of gravelly braided bars. Surface-based ERT has also been widely used for aquifer characterization (e.g., Koch et al, 2009;Kosinski and Kelly, 1981;Mazac et al, 1987). In a number of studies, surface-based GPR reflection and ERT methods have been combined to improve the characterization of alluvial aquifers (e.g., Bélanger et al, 2010;Bowling et al, 2005Bowling et al, , 2007Sandberg et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Constraining 3-D electrical resistance tomography with GPR reflection data for improved aquifer characterization

Doetsch¹,

Linde²,

Pessognelli³

et al. 2012

Journal of Applied Geophysics

103

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Section: Introductionmentioning

confidence: 99%

Constraining 3-D electrical resistance tomography with GPR reflection data for improved aquifer characterization

Doetsch¹,

Linde²,

Pessognelli³

et al. 2012

Journal of Applied Geophysics

103

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“…The electrical resistivity method gives fairly reliable results in hydrogeological investigation, wherein the disposition of the aquifer can be suitably delineated. It can also be effectively employed to map contaminated zones (Kelly 1976;Urish 1983;Mazac et al 1987;Benson et al 1991Benson et al , 1997NGRI report 2007;Pujari and Soni 2009). The aquifer geometry in the study area has been deciphered by carrying out 1D sounding using the conventional four-electrode resistivity meter.…”

Section: D Resistivity Soundingmentioning

confidence: 94%

Integrated hydrochemical and geophysical studies for assessment of groundwater pollution in basaltic settings in Central India

Pujari

Padmakar

Surinaidu

et al. 2011

Environ Monit Assess

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The Pithampur Industrial sectors I, II, and III, located approximately, 45 km from Indore in Central India have emerged as one of the largest industrial clusters in the region. Various types of industries ranging from automobiles to chemicals and pharmaceuticals have been set up in the region since 1990. Most of the industries have effluent treatment plants (ETP) for treating wastewater before its disposal on land and/or in water body. The present study is an attempt to assess the groundwater quality in the watersheds surrounding these industrial sectors to develop the baseline groundwater quality in order to enable the policy makers to facilitate decisions on the development of industries in this region. The industries are located in two sub-watersheds, namely, Gambhir river sub-watershed and Chambal river sub-watershed. Geologically, the study area is located in the Deccan traps of Cretaceous to Paleocene age. The different basaltic flow units underlie clayey soils varying in thickness from 2-3 m. The aquifer is mostly of unconfined nature. Samples have been collected from a network of observation wells set up in the watersheds. The water quality analysis of the groundwater samples has been carried out six times during three hydrological cycles of 2004, 2005, and 2006. The results indicate that a few observation wells in the vicinity of the industrial clusters have very high TDS concentration and exceed the Bureau of Indian Standards (BIS) guideline for TDS concentration. The contamination of groundwater has been more severe in the Gambhir watershed as compared to the Chambal watershed. The presence of the impermeable clay layers has resulted in a slow migration of contaminants from the sources. The findings reveal that there is no significant groundwater contamination in the Pithampur industrial sectors except in the vicinity of the industrial clusters, which indicates that there is good environmental space available for the expansion of industrial units in the Pithampur industrial hub.

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“…A combination of hydrogeological, geophysical and geochemical investigations can be very effective in the detection of contaminant migration (Sankaran et al 2005). Detection of contamination due to sea water intrusion, mine seepage, oil field leakage and hazardous waste disposal were discussed by Warner 1969;Kelly 1976;Urish 1983;Mazac et al 1987;Ebraheem et al (1990Ebraheem et al ( , 1996 and Barker 1981. Hence, electrical resistivity method is our choice to trace the extent of pollution in the vicinity of the lakes.…”

Section: Electrical Properties Of Geological Formationmentioning

confidence: 98%

Vertical electrical sounding (VES) and multi-electrode resistivity in environmental impact assessment studies over some selected lakes: a case study

2011

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A combined geophysical investigation consisting of vertical electrical sounding (VES) and multielectrode system was carried out to map the subsurface resistivity in all major lakes which are highly polluted by the discharge of sewage and other chemical effluents in greater Hyderabad, India. The structural features identified in the study area play a major role in groundwater flow and storage. The interpretation of geophysical data and lithologs indicates that a silt/clay zone (predominantly silt) has a thickness of 5-10 m all along the drainage from Patelcheruvu to the Musi River. The silt/clay zone inferred close to the lakes is a mixture of clay, silt and sand with more silt content as indicated from the lithologs during drilling. The low resistivity values obtained can be attributed to the pollutant accumulated in the silt which can reduce the resistivity values. Further, the TDS of the water samples in these wells are more than 1,000 mg/l which further confirms the above scenario. The pollution spread is less in the upstream areas whereas it is more in the downstream which can be attributed to the shallow water table conditions and also due to the interaction of surface water and groundwater.

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Surface geoelectrics for groundwater pollution and protection studies

Cited by 61 publications

References 9 publications

Constraining 3-D electrical resistance tomography with GPR reflection data for improved aquifer characterization

Constraining 3-D electrical resistance tomography with GPR reflection data for improved aquifer characterization

Integrated hydrochemical and geophysical studies for assessment of groundwater pollution in basaltic settings in Central India

Vertical electrical sounding (VES) and multi-electrode resistivity in environmental impact assessment studies over some selected lakes: a case study

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