Board: Delhi water Board (DWB), which supplies water to the New Delhi Municipal Corporation (NDMC) area, on Friday clarified that the cholrine content in water is enough to be used for drinking purposes. Reacting to news item in a section of the Press, which has stated that drinking water supplied to residents of South Delhi has been found to contain high level of microbacteria, DWB claimed that water supplied in these areas is potable and fit for drinking.