A three Judge bench headed by the Chief Justice S H Kapadia asked the pollution board to take three water samples near severage plant and file the report on pollution level.
"Court wants to know the level of pollution in the river. Centre Pollution Control Board would file the report with regard to pollution level within two weeks," the bench said asking the Board to examine the water pollution.
The Court passed the order in a case which it had taken suo-moto cognizance way back in December 1994 on the basis of news report on the level of pollution in Yamuna.
The apex court since then has been monitoring the cleaning of Yamuna.
When the apex court had pulled up the authority on January 30, 2008 and wanted to know if the river could be cleaned before 2010 Commonwealth Games, the Delhi Jal Board had said the cleaning project would be completed by January 2012.