The PWD engineers have released 534 cusecs of water from the Mullaperiyar reservoir at 1 p.m. on Friday after the storage level reached 137.50 feet (permissible level 142 ft).
As per the rule curve theory, till August 10, the engineers said that the reservoir level can be 137.50 ft. Hence, as the water level reached 136 ft on Thursday, the first flood warning was issued. As the inflow into the dam continued to be heavy, the water had to be released, they added.
At 1 p.m., 534 cusecs of water was released through six shutters and by 5 p.m., four more shutters were opened and a total of 1,870 cusecs of water was released during the period in a phased manner, the engineers said and added that 2,160 cusecs of water was released into Tamil Nadu side so as to ensure that the storage level was maintained as per the rule curve theory.
