CHENNAI: For lengthy, Tamil Nadu has been waging a struggle with Karnataka to secure its due proportion of Cauvery water. Now the struggle, if the state is going via the record of the Central Pollution Control Board, may not just be in regards to the quantity of water. It would also be about quality. Karnataka is polluting the river prior to it enters Tamil Nadu, says a record filed via the board within the Supreme Court on Friday.
The board said the Thenpennaiyar and Arkavathi, both tributaries of the Cauvery, were being polluted prior to they go with the flow into Tamil Nadu. The record used to be submitted within the apex court in reference to a case filed via Tamil Nadu in 2015 to restrain Karnataka from letting untreated sewage and business effluents into the river.
The river is the lifeline for other folks in western, central, northern and southern parts of the state.
Also read: Put forth robust case on Cauvery, says Tamil Nadu
About 1,200 million litres of sub-surface Cauvery water from wells along the banks of the river are tapped via the state executive each day to supply consuming water to about 20% of the state’s population in 19 districts. In all, 127 blended consuming water provide schemes within the state are fed via the river.
The water samples from the three rivers were examined collectively via the CPCB and the Karnataka and Tamil Nadu pollution control forums between September and December last yr. The samples were lifted from Ajjibore (river Cauvery), Chokkarasanapalli (river Thenpennaiar) and from the Arkavathi river near Sangama, prior to it joins the Cauvery river, for four months.
Read also: No management board in Supreme Court verdict, says Centre in keeping with Karnataka ‘scheme’
"River Thenpennaiyar is polluted and comprehensive plan of action is required for restoration of its water quality. The Arkavathi and Cauvery rivers were found to be polluted due to higher count of faecal coliform, attributed to open defecation and requires vigilance from the concerned organisations in the state to prevent further pollution," the CPCB record said.
The joint tracking and research of samples published that river Arkavathi, prior to Sangama and river Cauvery at Ajjibore met the required water quality criteria for the primary 3 rounds in September, October and November with admire to presence of natural pollution measured as Biochemical Oxygen Demand (BOD). However, it exceeded limits in December. Total coliform and faecal coliform, a hallmark of bacteriological pollution, exceeded the boundaries during September and October within the Arkavathi river. Same used to be the case within the Cauvery in October. In the case of Thenpennaiyar, the samples didn't meet the criteria with admire to all parameters in all four rounds of tracking. The sampling places were recognized after CPCB held elaborate discussions with the two states.
CPCB also pointed out that Karnataka raised objections to tracking the Arkavathi river, whilst Tamil Nadu maintained that the river used to be the supply of pollution. The meeting made up our minds that CPCB would collect the samples only from the river near Sangama for assessing the pollution load contributed via the river. "No state should let polluted water into another state. Tamil Nadu will submit its remarks to the apex court for stringent action during the next hearing, scheduled after two weeks," said a senior TN authentic. Arkavathi river joins Cauvery at Sangama, about 55kms from Bengaluru, and passes thru Mekedatu, four kms clear of Sangama, prior to entering Tamil Nadu near Hogenakkal. Tamil Nadu’s rivalry is that untreated sewage and business effluents are let into the river in and around Bengaluru.
Thenpennaiyar river originates at Nandidurg Hills in Karnataka and enters Chokkarasanapalli village in Tamil Nadu, 25 kms from Hosur, and passes thru five northern districts — Krishnagiri, Dharmapuri, Tiruvannamalai, Villupuram and Cuddalore. Tamil Nadu argued that the river gained untreated sewage and business effluents from Belandur Lake and Vardhur Lake in Karnataka. About one-third of Bengaluru city falls within the Cauvery basin, and twothirds of the world falls within the Thenpennaiyar basin. The rainfall runoff from Bengaluru within the Cauvery basin drains thru Arkavathi river and joins Cauvery, whilst rainfall from the other two-thirds drains right into a tributary of Thenpennaiyar and reaches Kelavarapalli reservoir in Hosur. "It is unfortunate that Karnataka has not taken efforts to ensure proper sewage treatment in and around Bengaluru," the authentic said.
The board said the Thenpennaiyar and Arkavathi, both tributaries of the Cauvery, were being polluted prior to they go with the flow into Tamil Nadu. The record used to be submitted within the apex court in reference to a case filed via Tamil Nadu in 2015 to restrain Karnataka from letting untreated sewage and business effluents into the river.
The river is the lifeline for other folks in western, central, northern and southern parts of the state.
Also read: Put forth robust case on Cauvery, says Tamil Nadu
About 1,200 million litres of sub-surface Cauvery water from wells along the banks of the river are tapped via the state executive each day to supply consuming water to about 20% of the state’s population in 19 districts. In all, 127 blended consuming water provide schemes within the state are fed via the river.
The water samples from the three rivers were examined collectively via the CPCB and the Karnataka and Tamil Nadu pollution control forums between September and December last yr. The samples were lifted from Ajjibore (river Cauvery), Chokkarasanapalli (river Thenpennaiar) and from the Arkavathi river near Sangama, prior to it joins the Cauvery river, for four months.
Read also: No management board in Supreme Court verdict, says Centre in keeping with Karnataka ‘scheme’
"River Thenpennaiyar is polluted and comprehensive plan of action is required for restoration of its water quality. The Arkavathi and Cauvery rivers were found to be polluted due to higher count of faecal coliform, attributed to open defecation and requires vigilance from the concerned organisations in the state to prevent further pollution," the CPCB record said.
The joint tracking and research of samples published that river Arkavathi, prior to Sangama and river Cauvery at Ajjibore met the required water quality criteria for the primary 3 rounds in September, October and November with admire to presence of natural pollution measured as Biochemical Oxygen Demand (BOD). However, it exceeded limits in December. Total coliform and faecal coliform, a hallmark of bacteriological pollution, exceeded the boundaries during September and October within the Arkavathi river. Same used to be the case within the Cauvery in October. In the case of Thenpennaiyar, the samples didn't meet the criteria with admire to all parameters in all four rounds of tracking. The sampling places were recognized after CPCB held elaborate discussions with the two states.
CPCB also pointed out that Karnataka raised objections to tracking the Arkavathi river, whilst Tamil Nadu maintained that the river used to be the supply of pollution. The meeting made up our minds that CPCB would collect the samples only from the river near Sangama for assessing the pollution load contributed via the river. "No state should let polluted water into another state. Tamil Nadu will submit its remarks to the apex court for stringent action during the next hearing, scheduled after two weeks," said a senior TN authentic. Arkavathi river joins Cauvery at Sangama, about 55kms from Bengaluru, and passes thru Mekedatu, four kms clear of Sangama, prior to entering Tamil Nadu near Hogenakkal. Tamil Nadu’s rivalry is that untreated sewage and business effluents are let into the river in and around Bengaluru.
Thenpennaiyar river originates at Nandidurg Hills in Karnataka and enters Chokkarasanapalli village in Tamil Nadu, 25 kms from Hosur, and passes thru five northern districts — Krishnagiri, Dharmapuri, Tiruvannamalai, Villupuram and Cuddalore. Tamil Nadu argued that the river gained untreated sewage and business effluents from Belandur Lake and Vardhur Lake in Karnataka. About one-third of Bengaluru city falls within the Cauvery basin, and twothirds of the world falls within the Thenpennaiyar basin. The rainfall runoff from Bengaluru within the Cauvery basin drains thru Arkavathi river and joins Cauvery, whilst rainfall from the other two-thirds drains right into a tributary of Thenpennaiyar and reaches Kelavarapalli reservoir in Hosur. "It is unfortunate that Karnataka has not taken efforts to ensure proper sewage treatment in and around Bengaluru," the authentic said.
Cauvery water entering Tamil Nadu from Karnataka polluted: CPCB to Supreme Court
![Cauvery water entering Tamil Nadu from Karnataka polluted: CPCB to Supreme Court]()
Reviewed by Kailash
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March 11, 2018
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