Collection and storage of rainwater from rooftops, roadside, open areas, etc. which can be stored for further usage or recharged into ground water to augment water resources and reduce run-offs.

Plantations play vital role in the absorption of storm and rainwater for maintenance of groundwater table, prevention of soil erosion and run-off and encourage the growth of natural habitat for flora and fauna. May undertake plantation near water bodies, public spaces, parks and on roadside to improve green cover and water cycle.

As part of the campaign, the ULBs are expected to identify key open drain channels, natural and artificial, functioning as storm water and greywater drainage. The ULBs with support from the local civil societies and volunteer groups may initiate a cleaning drive to desilt and remove solid wastes from these channels before the onset of monsoons.

Urban water bodies such as lakes, ponds, stepwells, and baolis have traditionally served the function of meeting water requirements of drinking, washing, agriculture, fishing and religious/ cultural purposes. Surface water bodies and traditional water harvesting structures in several cities have either dried up, or disappeared due to encroachment, dumping of garbage, and entry of untreated sewage. These water bodies, if revived, can store water and recharge groundwater besides improving the amenity value of the area.

Considering the growing need for water demand in urban areas and depleting water resources, there is a need to explore alternatives to freshwater. To optimize the use of water, it is important to undertake the treatment of wastewater and reuse it. Reuse of treated wastewater provides an alternative to freshwater where water is required for non-potable use. The water reclaimed from wastewater can be used for toilet flushing, agriculture/ horticulture, fire hydrants, industries, construction activities, power plants, etc.

The campaign will have special focus on utilising open spaces, specifically parks for harvesting rainwater for groundwater recharge. These parks may be called as “Rainwater harvesting Parks” where the objective of the park will be to demonstrate low cost interventions for capturing rainwater and channelizing it back into the shallow
aquifer systems to replenish groundwater tables.