(a) whether the Government is aware that out of Delhi’s Sewage Treatment Plants
(STPs) capacity of 2330 mld, only 1500 mld is utilized although a further 450 mld STP
was to be augmented by 2009 which so far has not happened;
(b) if so, the reasons therefor; and
(c) the steps taken by the Government to improve capacity utilization of existing
STPs?
THE MINISTER OF STATE IN THE MINISTRY OF URBAN DEVELOPMENT(SHRI SAUGATA ROY)
(a)& (b) Government of National Capital Territory of Delhi has informed that
under-utilisation of STPs is mainly due to silting of trunk and peripheral sewers,
full quantity of sewage not reaching STPs, inadequate water supply in the
catchment area/non-commissioning of treatment plant, non-availability of raw water to
some of the STPs, etc.
(c) The steps taken to improve the capacity utilization of existing STPs include
rehabilitation work of trunk sewers, desilting of sewers, etc. Further, work has
been started to enhance sewage treatment capacity from 512.4 MGD to 612.4 MGD by way
of construction of STPs at Kondli, Yamuna Vihar and Okhla.