CHENNAI: The flooding of Chennai town was not owing to official indecision or mismanagement of release of drinking water from the Chembarambakkam lake into the Adyar river, Tamil Nadu chief secretary K. Gnanadesikan explained on Sunday.
In a statement issued here, Gnanadesikan stated the flooding was caused mainly because of to the quite high rainfall in November, which was followed by a lot more rain in Chennai, Kanchipuram and Tiruvallur districts on December one.
Referring to media studies that the recent flooding of the Adyar river that killed a lot of people and destroyed livelihood and property of tens of millions of men and women was the outcome of incorrect management of drinking water releases from the Chembarambakkam lake.
Gnanadesikan explained the India Meteorological Division (IMD) on November thirty and December 1 had issued advisories of isolated weighty rainfall and not 50 cm rainfall as described by some media teams.
Gnanadesikan explained that in meteorological terminology, ‘isolated’ implies only in a single or two locations, hefty rainfall is between 6.4 cm to twelve.four cm, even though quite hefty rain indicates twelve.4 cm to 24.4 cm.
He dismissed as “destructive” and “canards” the allegations that engineers present at the Chembarambakkam lake were waiting for guidelines from the principal secretary of the Community Performs Section and the main secretary and the imputation that the officers ended up awaiting clearance from Main Minister J. Jayalalithaa.
Gnanadesikan stated the allegations were not supported by the drinking water launch knowledge of the reservoir.
According to Gnanadesikan, as for every the guidelines for flood regulation of the compendium of principles of regulation, the degree of drinking water reservoirs demands to be preserved at two toes beneath entire tank stage while monsoon is still energetic.
He said the guidelines balance the passions of h2o storage for the shortage period, the want to management flooding in downstream regions and the security of the reservoir.
Gnanadesikan explained adequate flood warnings have been issued to folks residing in reduced lying places on December one, and more than 47,300 people were evacuated from individuals regions.
He mentioned a lot of tanks had been breached because of to weighty rains and the drinking water flowed into the Adyar river.
“The flow in Adyar river attained its entire ability due to the surplus from Chembarambakkam tank, the influx from the catchment areas of Adyar in Chennai metropolis and the surplus acquired from the other tanks,” he mentioned.
“In look at of the weighty movement in the Adyar river, the high intensity runoff of local rainfall in Chennai metropolis and adjoining city locations could not totally drain into the Adyar and hence contributed to the inundation of the metropolis,” he explained.