Cyclone Michaung brought 36 hours of incessant rain starting on December 3, 2023, causing severe flooding in Chennai. Due to unprecedented flooding, the water level in the Buckingham canal increased, causing reverse flow. This appears to have carried some oil from the Chennai Petroleum Corporation (CPCL ) refinery as well as from other industrial units in the Manali area into Buckingham Canal when the flood levels receded. An oil slick has since been formed near Ennore Creek. CPCL has the expertise and capability to deal with this and has taken the lead to remove this oil slick in coordination with state authorities. There has been no pipeline leak or leakage from tanks in the refinery, and the refinery is under operation.
