NEW DELHI: The National Green Tribunal on Friday issued notices to Delhi Metro Rail Corporation, ministry of environment and forests, Central Ground Water Authority, Central Ground Water Board, as well as chief secretaries of Delhi, Uttar Pradesh and Haryana overDMRC’s alleged failure to ensure proper rainwater harvesting (RWH) at its stations and depots.

The petition, filed by Vikrant Kumar Tongad, has claimed that if RWH was done properly at all metro stations, there is a possibility of saving at least 1.96 crorelitres of water per year. IfRWH is carried out on all elevated Metro tracks, an additional 6.37crore litres of water per year can be saved.

Tongad said that the petition was filed on the basis of a CGWA direction, issued under Section 5 of the Environment (Protection) Act, 1986 to Chief Secretaries of all states to adoptRWH in all over-exploited and critical blocks of the states. Directions were also issued for implementation of RWH in all areas for which group housing societies, institutions, schools,hotels, industrial establishments, farm houses in south and southwest districts to adopt roof-top RWH in their premises. Central Public Works Department has also made it mandatory to adopt RWH on buildings that more than 100 sq m.

Tongad’s petition says there are 141 stations on the Metro routes, of which 130 stations are in Delhi, six are in Noida, three are in Gurgaon and two stations are in Ghaziabad. From these Out of these, 35 stations are underground, five stations are at-grade and the remaining are elevated. In the third phase, 91 stations are proposed. DMRC is dependent on DJB and groundwater sources for its water requirement.

“That in most of the stations of the Metro rail in NCR Delhi, (DMRC) has not installed the RWH system. Even if at some places where it has been installed, is not in proper condition. In an RTI response dated September 9, 2012, it has been informed that ‘proper soak pit are provided in median of metro line from Shahdara to Dilshad Garden and Janakpuri West -Dwarka Sec-9’…The applicant visitedmade personal visit to Sector 11 and Sector 14 Dwarkastations of Metro and found the rainwater harvesting system was there but was not working as per the guidelines.
At other various stations visited by the applicant it was found that no rooftop water harvesting system is in place,” says the petition. Of the seven DMRC depots, RWH has been provided only at the Sultanpur depot and at no other place, claims Tongad.