To Develop Ground Water Quality Index using Fuzzy AHP at Tamsa Watershed

Abstract

The ecological sustainability of rivers is in question due to severe pollution and lack of stringent regulations. For trend analysis 14 parameters were used such pH, EC (μS/cm at 25°C), TDS (mg/l), Total Hardness (mg/l), Calcium (mg/l), Magnesium (mg/l), Sodium (mg/l), Potassium (mg/l), Carbonate (mg/l), Bicarbonate (mg/l), Sulphate (mg/l), Chloride (mg/l), Fluoride (mg/l) and Nitrate (mg/l). The value of water physical, biological and chemical parameters of temporal resolution indicate that value of pH, EC (μS/cm at 25°C), TDS (mg/l), Total Hardness (mg/l), Calcium (mg/l), Magnesium (mg/l), Sodium (mg/l), Potassium (mg/l), Carbonate (mg/l), Bicarbonate (mg/l), Sulphate (mg/l), Chloride (mg/l), Fluoride (mg/l) and Nitrate (mg/l) were observed very high compared to recommended value of Bureau of Indian Standards (BIS) and World Health Organization (WHO). The average water quality index value was observed as 381.244 hence, it can be concluded that the investigated ground water was not suitable for drinking and even irrigation purposes.