Rain­wa­ter down the drain

Chen­nai's suc­cess rests on ef­fec­tive im­ple­men­ta­tion of rain­wa­ter har­vest­ing laws. This re­mains the big­gest chal­lenge for the cap­i­tal

Down to Earth - - ANALYSIS -

Delhi

Com­pli­cated ap­proval sys­tems and poor im­ple­men­ta­tion Rain­wa­ter har­vest­ing struc­tures man­dated for only new build­ings with 100 sq m roof area Awards for in­di­vid­u­als and in­sti­tu­tions discontinued after 2007 which has re­sulted in lack of mo­ti­va­tion At least 18 gov­ern­ment in­sti­tu­tions, in­clud­ing the Delhi Jal Board, are not con­serv­ing rain­wa­ter Lack of tech­ni­cal knowl­edge among gov­ern­ment of­fi­cials Vir­tu­ally no penalty for de­fault­ers

Chen­nai

All new build­ings ir­re­spec­tive of the size should have a pro­posal for con­struc­tion of rain­wa­ter har­vest­ing struc­tures Rain­wa­ter har­vest­ing struc­tures also manda­tory for all build­ings that need new wa­ter and sewer con­nec­tions It is the re­spon­si­bil­ity of the own­ers/ oc­cu­piers of the build­ings to main­tain rain­wa­ter har­vest­ing struc­tures Wa­ter sup­ply is stopped to build­ings that do not have proper rain­wa­ter har­vest­ing struc­tures. It is re­sumed once the pro­vi­sions are met

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