Two-thirds of Hyderabadâ€™s drinking water was found unsatisfactory when tested for faecal coliform bacteria, a recent survey has found.
The Institute of Preventive Medicine (IPM) which tested 196 samples in the city in July found only 65 samples to be satisfactory.
However, for May and June, when the IPM tested 312 samples in total, 111 samples were found unsatisfactory.
Coliform, which is naturally occurring and also present in the human body, is an indication of the presence of disease-causing microorganisms.
â€śWhen the levels of total coliform bacteria are high, it means that there is an elevated risk of water borne diseases like gastroenteritis, Hepatitis A and also Hepatitis B (jaundice). Those who are immune compromised like pregnant woman, seniors, and children, will be affected by drinking this water,â€ť a senior health officer told Deccan Chronicle on Tuesday.
The Institute of Preventive Medicine uploads the results two months after its conducts its monthly surveys and also assesses the work done by the GHMC.
In May, according to IMPâ€™s assessment out of the 34 actions taken by the Hyderabad Water Board (HMWSSB), four were deemed unsatisfactory.