5. Domestic Wastewater Pollution. The present water supply capacity in Delhi is approximately
591 MGD and the sewage treatment capacity is 344 MGD. 16 new sewage treatment plants are
at various stages of commissioning and construction. Of the 16 plants, 5 were completed by March
1999, 8 will be completed in 1999-2000 and one in 2000-01. However, since unauthorized colonies and
JJ clusters may not be provided with sewerage systems, wastewater from these areas will continue to be
discharged through drains. Accordingly, a parallel channel from Wazirabad to Okhla has been proposed.
Water and Power Consultancies Services (WAPCOS) are doing the feasibility study for the proposed
channel.
6. Industrial Non-hazardous Waste Management. The main industrial non-hazardous waste
is fly ash from power plants that emit about 6,000 metric tons of fly ash per day. Until recently, the fly
ash was disposed off for earth filling apart from about 100 metric tons per day that was used to manufacture
pozzolana cement. A small quantity of fly ash near BTPS is also used to manufacture bricks. Land
is now being allotted to three brick manufacturing units near Rajghat and Indraprastha thermal power
stations so that additional fly ash from these plants can be utilized. At the same time, the use of beneficiated/
washed coal may reduce the amount of fly ash generated by thermal power plants.
7. Hazardous Waste Management. The National Productivity Council, New Delhi has conducted
an Environment Impact Assessment study to select a site for the disposal of hazardous waste. A
150 acre site on the Bawana-Narela Road was selected but it has not been made available due to opposition
from local residents.