CLASSIFICATION OF SIGNIFICANT SOURCE CALCULATING GROUNDWATER CHEMISTRY IN HARD ROCK REGION OF OMALUR TALUK, SALEM DISTRICT, TAMILNADU

Applied Chemistry

The geochemistry of the water percolated inside the aquifer is controlled by the availability of major and minor inorganic constituents in the soil and rock through which the groundwater passes. In a Hard rock terrain like Omalur horizontal permeability is unequal to vertical permeability. Hence the time of travel and residence differ, which is responsible for the major changes in the water chemistry. The chemical concentration of different ions present in the groundwater of the study area. A total of 17 samples were collected and analyzed for major cations and anions. The analytical precision for the measurement of major ions is about ±6% to ±9%. The total cations (TZ+) and total anions (TZ") balance (Allan Freeze and Cherry 1979) shows the charge balance error (E %) percentage. The error percentage is between ±2% to ±10%. The correlation coefficient between TZ+ and TZ~ is generally occurring around 0.6 to 0.9. TDS/EC ratio ranges from 0.5 to 0.8. The role played by the other ions than those studied here for the cation and anion charge balance is lesser. Hence the composition and the range values of the ions are analysed and discussed in detail. The groundwater in the study area is colorless and odorless in most of the places.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.