Grade Card Method of Ground Water Health Evaluation of Mustoor Sub-Watershed Chikballapur Taluk Karnataka

Ground water occurs commonly and is widely distributed and is the most reliable resource the quality of ground water needs to be monitored and preserved. In this study, as a part of the research work an attempt is made to assess the health of ground water in Mustoor sub-watershed. 11 Samples are selected from the influencing major villages and villages with surface waterbody in the sub watershed. A water grade card is an aid to educate and remind about the conditions of naturally available water resource around the users with the help of Water Quality Index method in comparison with Indian Standards IS 10500. Multi-metric indicators and indices aid to build a water grade card, in this study 11 samples of ground water are tested for eight selected Physico-chemical parameters (pH, turbidity, iron, fluoride, chloride, nitrate, total dissolved solids and total hardness) in March and October months, 2018 as Pre and Post Monsoon months. GWQI method helps in assigning the grades. It is intended for diverse users: like any individuals and institutions to policymakers and planners. The indicators collectively provide the overall health that is scored and is graded to report the condition or quality of the groundwater in the sub watershed in a better understanding way to the common people with the help of grades.