About 24,000 liters of oil might have spilled over the water surface from
the central government owned Chennai Petroleum Corporation’s refinery when
cyclone struck Chennai in the first week of December according to the
assessment done by the coastguards
The assessment was
submitted by the Tamil Nadu Pollution control board to the southern bench of
the National Green tribunal on January 11th. This is the first
official assessment of the extent of the oil spill that polluted Ennore Creek,
Buckhingham canal, Kosasthaliyarriver and coastal waters
Most of the oil was
deposited on the banks of Buckingham Canal, and Kosasthaliyar River, while the
floating oil was observed to be leached from sand as per the coastguard survey. “Meanwhile, a detailed
physical assessment of the quantum of oil spilled, carried out by IIT Madras is
still awaited. The government had entrusted the IIT to study oil depth in
canals, water and sediments using drones, ocean spill models and satellite
imagery.
The institute has
furnished a proposal to conduct an environmental impact assessment study of oil
spill-affected sites at the Ennore Creek at a cost of Rs 1.04 crore, to devise a Management
Act Plan for restoration and rejuvenation. The IIT has already conducted a
physical survey and found 19 areas to be contaminated by oil.