Studies on assessment of ground water pollution vulnerability Index for the City of Visakhapatnam (A P) through application of "DRASTIC" model.
Studies on assessment of ground water pollution vulnerability index for the city of Visakhapatnam (A.P.) through application of "DRASTIC" model were carried out. The areas with high degree (DRASTIC index >185) belong to mostly industrial zone apart from one commercial area (Jagadamba area) and one residential colony (Lawson's bay colony) while studies were restricted to extraction of ground water for consumption in industrial areas, the present study indicates that care is needed in utilizing the ground water in these two localities. It is also inferred that some residential areas (Shivajipalem, HB Colony, Marripalem, KRM colony and Shantinagar) including a couple of slum areas like Poorna market area, Old Lakshmi area contains aquifers with high degree of hydrogeologic vulnerability. Commercial areas covered in and around RTC complex and the industrial areas located in Sriharipuram and Sheelanagar are also characterised by aquifers of very high degree of hydrogeological vulnerability. Most of the sectors of MVP Colony and other residential areas in the study area have a high degree of vulnerability in the range 120 < or = DRASTIC < 160. It is also seen that the areas of Nakkavanipalem and Seethammadhara both of which belong to residential zones have a medium degree of vulnerability 80 < or = DRASTIC < 120.
Dept. of Civil Engineering, Andhra University College of Engineering, Visakhapatnam.
T Usha
TU
Madhuri
M L
ML
Narasimham
D005843:Geography; D007194:India; D015233:Models, Statistical; D012987:Soil; D014876:Water Pollution / Q000706:statistics & numerical data*; D014881:Water Supply
D012987:Soil