Hydrogeological Environment and Groundwater Quality of the Alluvial Aquifers in Parts of the Central Gangal Plain India

The study area is a part of the Central Ganga plain. That falls under the climate zone and covers an area of 1340 sq. km in the Aligarh-Etah distt of Uttar Pardesh. Geologically, Bundelkhand granite forms the basement complex which is unconformably overlain by the Upper Vindhyan sequence, which is further is overlain by the Siwaliks and finally by the Quaternary alluvial. In the present paper, an attempt has been made to depict a comprehensive picture of the aquifer system, their dimensions and transmission characteristics. Moreover, occurrence, movement and behaviour of the water level fluctuation in time and space were also studied. 
 
The water quality studied of surface and groundwater were made in order to ascertain their usability for municipal purposes. The study shows that water of the basin is alkaline, hard, moderately mineralized and alkali bicarbonate type. Further, the study shows that all major ions are within the permissible limit of WHO standards. But places in shallow aquifers, the concentration of heavy metals were found slightly more than the permissible limit which needs serious attention. However, in the deeper aquifer the water is observed free from contamination and hence recommended as safe drinking water.

Author(s):
Rashid Umar and Asad Umar
Department of Geology
Aligarh University, Aligarh, India.