Pennar is an important river of Ananthapuram district where 80 per cent of the district is drained by the river. Ground water levels were monitored from a network of 71 observation wells four times in a year. The depth to water level during pre-monsoon (2005) ranges from to m below ground water level. The shallow water levels of 10 m below ground water level are observed in majority of the district. Less fluctuation is observed in the areas where the water levels were comparatively shallow during pre-monsoon and where the slope is less. Generally in vadrapalem July to December are the months varying the ground water levels are increasing. Similarly during the months from January to June there is no recharge of ground water. | A study on groundwater recharge and fluctuation of vadrapalem Village in Madakasira mandal of Andhrapradesh India
