Seven more water samples collected from diarrhoea-hit Mauli Jagran by the UT health department have failed the test. Results of 23 samples have been declared so far, of which eight have been found unfit for human consumption.
The samples were sent to the microbiology department of Government Medical College and Hospital, Sector 32 (GMCH-32) for tests. Sources said the microbiological analysis of the samples brought out that the bacteria content in the water was extremely high. In some of the failed samples, the bacteria content, measured in terms of most probable number (MPN) per 100 ml, is as high as 1,800.
In some cases, the count could be even more as the laboratory does not count bacteria content beyond 1,800 samples in GMCH, the sources said. Ideally, potable water should not have a bacteria content of more than 3.
Curiously, the water samples collected by the public health department of the municipal corporation were found "fit for human consumption".
According to experts, it is premature to link the diarrhoea cases to the failed samples. "For that, we need to conduct stool tests of the affected people," they said.
In the past six days, around 1,500 cases of diarrhoea have been reported from Vikas Nagar locality of Mauli Jagran. Four persons, including a two-year-old, have succumbed to the disease.