(a) whether Municipal Corporation of Delhi has recently conducted any purity test of drinking water in the NCT of Delhi;
(b) if so, the details thereof;
(c) whether it is a fact that 70 percent of drinking water is found to be contaminated with sewage water in Delhi; and
(d) if so, the details thereof and the action taken against the concerned authorities for supplying harmful water?
MINISTER OF STATE IN THE MINISTRY OF HOME AFFAIRS (SHRI HARIBHAI PARATHIBHAI CHAUDHARY)
(a) & (b): The Delhi Jal Board is the agency for supplying safe drinking water in various parts of National Capital Territory of Delhi. However, the Public Health Department of South, North and East Delhi Municipal Corporations also tests water samples for presence of free chlorine in drinking water under its jurisdiction, which is an on-going process.
Water tested for free chlorine and found positive is considered fit for drinking. The results of tests conducted by Delhi Municipal Corporations from 01.01.2014 to 30.11.2014 are as under :-
Free Chlorine Test Report Sample lifted 16308 11670 12884 Found Positive 15612 10903 12879 Found Negative 696 767 05 Bacteriological Test Report Sample tested 241 3478 8179 Found Fit 139 2942 8179 Found Unfit 102 536 0(c) & (d): No, Madam. The Delhi Jal Board has informed that it supplies drinking water in NCT of Delhi from all available sources (Surface water and underground water) conforming to the standards laid down by the Ministry of Urban Development & Poverty Alleviation and also by the Bureau of Indian Standards elucidated in I:S 10500:2012. It conducts its own in-house test of the quality of treated water and ground water through plant laboratories round the clock and six zonal labs set up all over Delhi. As and when there is any complaint of quality contamination of water, the same is attended on priority basis. Sometimes, the cause of contamination is due to old service pipelines of residents. On an average, 43,083 water samples were lifted and tested during the period September, 2014 to November, 2014 and only 1.24% water samples were found unsatisfactory. Delhi Jal Board also provides treated /filtered water through its tankers to the consumers till the problem of contaminated water, if any, is resolved.