Hydro-chemistry of Udaipur lakes.

The hydro-chemical character of lakes around Udaipur city has been studied for a period of five years. But for the lake Udaisagar, the salinity of water in lakes Badi, Fatehsagar, Pichhola and Swaroopsagar is less than 750 microSiemens per centimeter and fluctuates marginally in dry and wet period. The waters are Ca-Mg-HCO3 type and have calcite saturation. All the lakes have shown dissolved oxygen more than 8.0 mg/L despite of varying level of pollution. The lake Udaisagar is most polluted and exhibits eutrophic character along with the lakes Swaroopsagar and Pichhola.