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Water Harvesting: High Capacity Recharge Pit | Manohar Khushalani

Important: The number of borewells depends on the volume of water. Minimum one, maximum two, Three borewells can be used only in exceptional circumstances. Under no circumstance, the borewell should be deeper than the first aquifer. This is to ensure that people dont use it for pumping out water from deep aquifers.

Water Harvesting: Desilting Tank for removal of suspended impurities | Manohar Khushalani

After the harvested water is brought down from the catchment area this tank is used to remove the silt from the water.  Dimensions are indicative. The size will vary depending on the amount of water coming in through the inlet pipe. more than one tank can be used in series if the first tank does not remove all the impurities. The Desilting tank should be cleaned in the dry season every year. Water outlet from the last desilting tank in the series will be sent to the Recharge Pit

SOURCES AND CLASSIFICATION OF WATER POLLUTANTS | Dr. Shanti Vaidya

Ever-increasing population and the consequent urbanization and industrialization have mounted serious environmental pressures on these ecosystems and have affected them to such an extent that their benefits have declined significantly. This is particularly grave for water resources. e.g in Bangalore city, studies revealed a nearly 35% decrease in the number of bodies of water during 1973 to 1996. Thus, water the most precious natural resource is the most  USED  and ABUSED resource.