AREA: 2023.43 Sq.mtrs    ZONE: 3    DIVISION: 24

This pond is in Division 16 of Zone  3 and is located on the Kadappa Road which is an extension of the Madhanankuppam road. It is located to the North of the road and the CMWSSB sewage pumping station is located next to the pond. The pond is located at North Latitude 13 7'57.59"and East Longitude 8011'46.77".

The pond is rectangular in shape. There is water in the pond during the time of survey. There are no steps or revetment provided in the pond. There is no inlet or outlet available to the pond. At present, there is no specific catchment to the pond but for its own in-situ catchment. The actual pond boundary is not known and hence the level of encroachment could not be ascertained. The is not polluted with solid waste dumping; neither sullage nor sewage is diverted into the pond. The pond is bounded by road in West and South and by the Sewage pumping station of CMWSSB in East. Shallow borewells of 25m to 30m are the common groundwater extraction structures in the area. The Total Dissolved Solids of the borewell water varies from 1500 to 2000 mg/lt. One of the major advantage of this pond is that it is not polluted neither by solid waste dumping nor domestic liquid waste diversion. There is no weed infestation found in the water spread area. All along the bund there are bushes to minor extent. The pond can be renovated with minimal interventions. Based on the Total Station Survey output, it is inferred that the total area of the pond is 1,834.761 sq.m and the total length of the bund is 166.5m. The average depth of the pond is about 3.5m.

The actual volume stored in the tank during 1987  a normal rainfall year - after losses due to evaporation and recharge is given in the following graph

The total storage capacity of the tank in its present condition is estimated at 6,421.66 cu.m. Based on this estimate, there will be water available in the pond for almost 134 days in a year. At no point of time, the pond overflows in a normal rainfall year. The total inflow to the tank in a normal rainfall year is estimated at 22,394.71 cu.m; the total groundwater recharge will be 2085.40 cu.m. The estimate was made in an excess rainfall year ie., during 2005 to see the inflow and outflow status. The actual volume stored in the tank after losses due to evaporation and recharge is given in the following graph.

Based on this estimate, there will be water available in the pond for 142 days. The pond in its present volume does not over flows even in an excess rainfall period for the assumed catchment. The total inflow to the tank in an excess rainfall year is estimated at 174,239.50 cu.m; the total groundwater recharge is 2,219.54 cu.m.

Based on the field observations and inferences, followed by the data analysis, following were the list of activities proposed for renovating the Pond.

• The pond should be dewatered, desilted and deepened
  
• The bund need to be strengthened;
  
• Revetment and steps to be provided.
  
• Bush clearance all around the pond and provision of a pathway all around the pond to a width of 1.8m and properly fenced.
  
• Introduction of recharge well of 1.2m diameter and 3m in depth in the pond.