EDXRF chemical analysis (with a spot size of ~3 mm in diameter) revealed major amounts of Si, Ca and Al, minor Fe and Mn, and traces of alkalis and
alkaline earths (including Sr and Ba).
The plot of chemical data on Trilinear diagram reveals that majority of the groundwater fall in the fields of 1, 3, 5 suggesting that
alkaline earth exceeds alkalies and weak acids exceeds strong acids respectively (Fig 2a and 2b).The ions representing carbonate hardness (secondary alkalinity) exceeds 50%, that is, the total hydro chemistry is dominated by
alkaline earths and weak acids [6].
Their approach was based on the physiologically reasonable premise that the rate of reabsorption of these
alkaline earths from tubular fluid in the nephrons is a direct function of their concentration in that fluid.