The document describes a project by 7th standard students in Tamil Nadu, India to address stagnant wastewater from a public water tank near their school. The water was emitting a foul smell and spreading diseases. The students discussed solutions and decided to get permission from a nearby grove owner to irrigate the trees with the stagnant water. With help from friends and teachers, the students formed beds around coconut trees in the grove and built small channels to direct the water from the tank to the trees. This solved the problem of stagnant wastewater polluting the land without negatively impacting the environment.