AQUIFER MAPPING PROJECT IN DAUSA DISTRICT, RAJASTHAN
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Assessment Unit
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Watershed
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Name / Code
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Bandikui
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Area
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598 sq.km / 59800 ha
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District
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Dausa
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Taluk / Block
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Baswa
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No. of Towns / Villages
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200 villages for Baswa block
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Approx. population in the Taluks
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Rural : 2.7 lakh (Baswa block)
Urban : 0.16 lakh (Baswa block)
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Figure 4.1: Aerial view of study area.
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Normal Annual Rainfall
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620 mm
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River Basin
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Banganga basin
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Major rivers / streams
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Sanwan Nadi and Palasan Nadi
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Figure 4.2: Location map of the area.
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Geology
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Quaternary Alluvium underlain by Schists, Phyllites, Quartzites, Granite Gneisses,
and Migmatites belonging to Proterozoic and Archaean Supergroups.
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Hydrogeology
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Groundwater occurs under unconfined to confined conditions in Quaternary Alluvium
and in the underlying fractured zones in hard rocks.
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Aquifers
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Sand layers in alluvium, weathered and fractured zones in hard rocks.
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Figure 4.3: Schematic view of aquifers disposition in Baswa-Bandikui area.
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Depth to water table (Min. / Max.)
(m below ground level)
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Pre-monsoon 2011 : 31.4 m in Sikandara
Post-monsoon 2010 : 29.48 m in Sikandara
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Ground water level trend
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Annual : declining trend
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Figure 4.4: Hydrograph of water level variation in Bandikui.
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Stage of ground water development
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173%
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Groundwater quality
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The area suffers from fluoride contamination and salinity at places.
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Major issues
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Over exploitation
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Fluoride contamination and salinity at places
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Methodology of study
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Hydrogeology and integration of multiple geophysical techniques.
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Expected outcomes of aquifer mapping
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Map of alluvium aquifers and fractured zone aquifers and their potentiality and
quality, aquifer-based management.
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Geographical applicability of the methodology
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Alluvial covered hard rock areas of Andhra Pradesh, Bihar, Karnataka, Maharashtra,
Orissa, Rajasthan, Tamil Nadu, Uttar Pradesh, and West Bengal.
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