Less chlorine in water
Most of the packaged drinking water samples tested by the corporation were found to have less than the required amount of chlorine, a civic official said on Thursday.
- Published 23.02.18
Calcutta: Most of the packaged drinking water samples tested by the corporation were found to have less than the required amount of chlorine, a civic official said on Thursday.
But faecal coliform was not found in any of the samples, ruling out the presence of E. coli bacteria.
Food safety officers of the Calcutta Municipal Corporation (CMC) and police raided several manufacturing units of packaged drinking water in the past few days and collected water samples.
The water samples were tested in the CMC's laboratory. "The results suggest contamination. The chlorine count is less than the standard limit," a senior official of the corporation said.
Public health engineers said chlorine acts as a disinfectant and kills microbes in water. The standard permissible limit for chlorine is 0.2 to 0.5 parts per million.
"Thirteen of the 16 packaged water samples that we tested were found to have less than the standard amount of chlorine," the official said.
A CMC source said the police will be alerted to initiate legal action against the units manufacturing drinking water without the required chlorine content.
The samples were collected from several areas, including cludes Kasba, Chowbhaga. Narkeldanga and Canal Circular Road, after the recent diarrhoea outbreak.
Faecal coliform was not found in any of the samples. Mayor Sovan Chatterjee had earlier blamed "packaged water" for the outbreak of diarrhoea and said potable water supplied by the corporation free of contamination.
Water samples collected from affected areas have been found to have double the permissible amount of chlorine, which could be harmful for the body.