The HC bench of Justice JBM Hassan and Justice Md Khairul Alam passed the order after submitting some test reports of Wasa water.
It also asked DWasa to submit its written explanation to the court and fixed July 24 for next hearing.
Deputy Attorney General Motaher Hosain Sazu submitted the reports on behalf of the Local Government Ministry.
According to the report submitted to the Attorney General’s office on July 3, elements like arsenic, ammonia and bacteria were detected in the water of four zones out of 10 distribution zones of Wasa.
Earlier on May 21, the High Court issued an order to test Wasa water samples from 34 locations in the capital.
Mohammad TanvirAmed, a counsel of the writ petitioner, moved the court after on October 11 last year after a World Bank report said that over 7.5 crore people of Bangladesh drink unsafe water.
The report noted that 41 percent water sources contain harmful bacteria and 13 percent water contains arsenic. It said about 80 percent water supplied through pipelines contains harmful bacteria.
In the following month, the High Court ordered the authorities concerned to form a committee to test Dhaka Wasa water.
It asked the LGRD and Cooperatives Ministry to file a report within May 15 after fixing the expenditure required to test the water.