A bench headed by NGT Chairperson Justice Swatanter Kumar gave the ruling saying that in order to ensure effective functioning of environmental laws as well as in larger public interest, it is necessary that projects like sewage treatment plants (STP) get environment clearance (EC).
"Sewage itself is a very serious pollutant. It can result in tremendous health hazards and cause injury to the environment. It carries pathogenic organisms that can transmit diseases to humans and animals... The purpose of environmental legislations is to prevent environmental degradation on the one hand and its improvement on the other.