Assessment of groundwater potential based on aquifer properties of hard rock terrain in the Chittar–Uppodai watershed, Tamil Nadu, India

Abstract

Aquifer performance was tested in 24 locations to assess the groundwater potential of the hard rock terrain in the Chittar-Uppodai watershed of the Tambaraparani River basin. Geologically, the area consists of biotite gneiss, charnockite, and quartzite. The aquifer characteristics, such as transmissivity (T), the storage coefficient, specific capacity, optimum yield, and the recovery rate were calculated. The drawdown transmissivity was determined using Jacob's straight-line method, while the recovery transmissivity was determined by the Theis method. The drawdown transmissivity was low in the western areas, particularly at Kadayanallur, and was higher in the other areas. The recovery transmissivity was high in the western area, and, with the exception of Gangaikondan, was low at other locations. The assessment indicates that there is groundwater potential in the western part of the study area because of favorable results for recovery drawdown, aquifer thickness, and specific capacity.

Hydraulic characteristics of a fractured crystalline basement aquifer in Nzhelele area, Limpopo Province, South Africa

“…The transmissivity for borehole H27-0165, however, falls in the intermediate classification category by Krasny (1993). Transmissivity describes the general ability of an aquifer to transmit water over the entire saturated thickness, while hydraulic conductivity measures this ability by unit area (Kumar et al, 2016). The transmissivity and hydraulic conductivity values obtained in this study therefore indicate that the aquifer in the study area mostly has low ability to transmit water through its entire thickness while the ability to transmit water per unit area of the aquifer was mostly medium, low and moderate hydraulic conductivities…”

Pumping Test for Dammam Confined Aquifer and Geochemical Specification Within Najaf Governorate Iraq

“…The transmissivity is the result of the aquifer's saturated thickness and average hydraulic conductivity (Kruseman et al 2000;Kumar et al 2016). So, the transmissivity is directly proportional to the increase in the saturated thickness of the layer.…”

Estimation of main aquifer parameters using geoelectric measurements to select the suitable wells locations in Bahr Al-Najaf depression, Iraq

“…Table 1 below shows various soil corrosivity for different soil resistivity values (Oladapo et al 2004;Ibanga and George, 2016). The protective capacity rating was inferred from the calculated longitudinal conductance (S) using protective capacity rating as shown in Table 2 (Kumar et al, 2016), where S is the sum of all the thickness/resistivity ratios of n − 1 layers which overlie a semi-infinite substratum of resistivity ρn, such that S = h1/ρ1 + h2/ρ2 + h3/ρ3 + … + hn−1/ρn−1 (mho), where h1, h2, etc. are the depths and ρ1, ρ2, etc.…”