CS(AR)-1/2006 : Assessment of ground water quality of Agartala

Abstract

The quality of water depends on a large number of individual hydrological, physical, chemical and biological factors. The quality of ground water varies from place to place as well as from strata. It may also vary with seasonal changes. Ground water quality assessment and town planning are closely related. For proper utilization of ground water for various purposes, understanding of geochemical controls and for study of the extent of ground water pollution and in order to take remedial measures, it is ofparamount importance to carry out systematic monitoring ofground water quality.

Ground water quality variation problem can be understood only by the regular monitoring of quality of water. In Agartala and Tezpur city of NE Region of India, rapid industrial and population growths have been taken place during the last decade. Therefore, it was proposed to study ground water quality in and around Agartala and Tezpur city. In the present study different ground water classification methods on the basis of Stiff pattern diagram, Piper trilinear diagram, US Salinity Laboratory classification, Gibbs variation classification, Durov's trilinear classification, Doneen's and Wilcox classification are reviewed.

To evaluate the suitability of ground water for irrigation purposes various parameters like Kelley's Ratio, Sodium Adsorption Ratios (SAR), Residual Sodium Carbonate (RSC), Magnesium hazards, Sodium % and Permeability Index have also been reviewed. In the report two main environmental stable isotopes of Hydrogen (8211%0) and Oxygen (81'0%0) are also determined from the collected ground water samples in the nuclear hydrology lab of NIH, Roorkee and presented in this report.