Appraisal of Storm Water Runoff In Industrial Area-Autonagar Vijayawada, Andhra Pradesh, India

Auto spare parts manufacturing, assembling and fabrication is an essential part of the Industrial area of Vijayawada. Such material handling and storage, equipment maintenance, cleaning, and other activities at industrial facilities are often exposed to the ‘ Hot and Humid'- climatic conditions of Vijayawada region, India, as the precipitation occurs in the form of rainfall, the runoff from rainfall that comes in contact with these stacked auto mobile equipments / parts, can pick up the pollutants especially petroleum, grease, diesel, sulphur, nitrates, chlorine, ferrom, and carry further directly to nearby water body or indirectly via a storm sewer and degrade underground water quality. Such polluted runoff can kill aquatic life, and make our waterways unhealthy. People working and living at the automobile factories, workshops, retail units and residences in Auto-nagar are facing a harrowing time due to insufficient drinking water supply from Vijayawada Municipal Corporation (VMC) and contaminated underground water. The objectives of this paper to assess the water quality and workout to utilize the storm water runoff by developing a framework to rain water harvestation and to avoid flooding at low laying areas. The runoff of minimum conditions(2mm/h) to maximum down pore conditions ( 50mm/hr – 10 years return period) have been assessed and The run off normal monsoon rains 4mm/hrs to 8mm/hr also evaluated and appreciate with respect to the terrain conditions. The Industrial area of 190.69 hectors can accumulate / generate 251.57m3 /s runoff for 6mm/hr rain fall intercity of normal monsoon conditions from paved areas and non paved areas. It has been assessed and designed to have macro and micro level clean development mechanism to avoid flooding and drive to underground water table by filtering the pollutants and to use the same water to reduce the gap between the demand and supply of water