Thermal power plant industries produce million tonne flyash (after burning of coal) each year which consists of fine particles of unburnt raw materials and some trace elements. Generally, most common practice regarding management of this ash is making slurry of it with water and disposing in ash dyke. Although it is a temporary process, due to leaching of metals, surrounding ground water and soil may get contaminated. So, proper maintenance and regular examination of the ground water and soil quality is necessary.