Estimation of Rainwater Harvesting Potential in Dange College Campus for Retreat the Water Shortage

The better future requires the harvesting of rainwater for the water conservation and fulfillment of water requirements in the micro level areas with the optimistic method. Thus the present research aims to identify the potentiality of rainwater harvesting in Dange college campus of Hatkanangale for retreat the water shortage. The campus located in rain shadow zone of Western Ghats receives 820.4mm annual average rainfall. It has 4.5 acres of campus with 6090 sq. m. built up area and 2547 sq. m. area of roof surface. College has 6070 sq. m. area of fruit garden and 7100 sq. m. Play ground. For the present investigation, data regarding various aspects are collected through the college administration office, and skymet website. Runoff Coefficient and Annual rainwater harvesting potential (ARHP) of the campus is estimated by using formula (ARHP = R x AC x RC) given by Pecey, et.al; 1989. The analysis revels that approximate of 75 Lakh Litre water will be collected from the whole campus. Out of that 18.80 Lakh litre water will be collected purely on rooftop of the building and it is directly usable for the drinking and sanitization. It will be fulfill 90 % demand of the fresh water. Out of 74.52 Lakh litre water 55.71 L. Litre water will be useful for the gardening in the dry season.