The Yamuna is a drain with not a drop of fresh water in its 22-km stretch through Delhi, the Central Pollution Control Board (CPCB) informed the Supreme Court on Friday.
"River Yamuna ceases to exist downstream of Wazirabad barrage during a major part of the year and gets its flow due to Najafgarh drain at Wazirabad downstream," a two-member expert body appointed by the court said in its interim report.
Presenting the report to a bench of Justices Swatanter Kumar and S J Mukhopadhaya, CPCB counsel Vijay Panjwani said, "Yamuna is a drain. Fresh water does not flow in the river except during monsoon. The entire flow of fresh water is harnessed at Wazirabad to provide drinking water to residents of Delhi."
Amicus curiae and senior advocate Ranjit Kumar supported the expert body's interim findings and said what flowed into Yamuna within Delhi was treated and untreated waste and sewage water. "So, it is nothing but a drain," he added.
The expert committee's interim report said, "The total installed sewage treatment capacity in Delhi is 2,460 million litres per day (MLD) as against the sewage generation of about 3,800 MLD. It is pertinent to mention that installed capacity is only 63% utilized in the absence of adequate coverage area."
The report found that 1,360 MLD of sewage water flowed into the river untreated and got mixed with treated sewage, bringing to naught the entire effort to reduce pollution in the river.
The apex court had taken suo motu notice of a news item 'And quiet flows maili Yamuna" in 1994 and, since then, has been making efforts to reduce pollution level in the river, which has remained unsuccessful in the absence of comprehensive and joint efforts from authorities.
The bench did not take kindly the state of affairs relating to Yamuna and virtually pleaded with the authorities to make "some collective efforts to make the river clean".
It gave three more weeks to the expert body to present its final report relating to closure of drains which discharged untreated waste water into the river. It also asked the expert body to suggest remedial measures to make Yamuna clean.
The interim report said, "Najafgarh drain discharges about 2,064 MLD of waste water into Yamuna. Of this, only 629 MLD (30%) of waste water is treated through the installed capacity in the Najafgarh drain basin. It clearly indicates that there is large gap of 1,435 MLD of waste water which remains untreated. Even the treated sewage from sewage treatment plants is discharged with the Najafgarh drain where it is mixed with the untreated sewage, thereby defeating the very purpose of waste water treatment."
Panjwani also informed the court the expert body found that many areas of the national capital did not have a drainage system at all. The report said, "As a result, large quantity of sewage is diverted to storm water drains while the STPs are underutilized by 37%. Besides, 45% of the population in villages/unapproved colonies (recently regularized) are not covered by sewerage system."
dhananjay.mahapatra@timesgroup.com
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