Groundwater resources in many part of the city are overexploited. The extent of replenishment of ground water is much less than what the city as a whole is withdrawing due to its rapid urbanisation. Availability of surface water in Delhi is limited and is dependent on river water sharing among the riparian/ basin states and interstate agreements, therefore, there is an urgent need to preserve the ground water resources and to take measures for its sustainable availability. Taking into cognisance that applicants seeking permission for installation of recharge bores for the purpose of rain water harvesting are not getting permission from the District advisory committees, while at the same time penalties as per the provisions in the Delhi Water and Sewer (Tariff & Metering) Regulation 2012 are being imposed on DJB consumers for not putting up RWA structures in their premises, the Board has approved a highly simplified easily implementable RWA structure which does not require a borewell. This particular structure has proved effective in other countries. The Board has extended the date of installation of the RWH structures to 30th June,2016. Therefore, it has been considered that RWH Structures for the purpose of Ground Water recharge may be without recharge bores and filter media comprising of stone/ pea gravels etc. Further, simple modular designs and drawings of recharge chambers are to provide capacities and suggestive sizes of the recharge chambers required depending on the runoff generated from roof top area only.
Rainwater harvesting in govt offices has been made compulsory. Consultations on how to ensure harvesting in households are still going on. To this end, a policy workshop was organized in association with the Delhi Dialogue Commission to firm up the policy document on rainwater harvesting. The workshop was attended by NGOs, RWA representatives, consumer organizations, and professional water organizations.