Take 3,000 students, a 70,000 square meter campus and a largely barren hilltop. Put together, the result is a water shortage that cannot sustain even the few colorful plants that could give the college a better learning environment.
So the most prominent educational center of India's smallest stage Goa, St. Xavier's College, decided to be pro-active about water. The college is actively scouring for some rainwater harvesting solutions that could show the way to others in a state where the annual 3,000 millimeters of rain largely goes to waste and runs off into the Arabian Sea.
Our college building was ready in 1968. Then, the local landowning cooperative had given a small plot of land out of the local common land resources, with a spring, from which water used to be brought up. Slowly our numbers increased and the old solution didn't work. Our aims are three fold. Firstly, we would like the college to get access to water, Secondly, we need to re-charge the local waterbed, even if we don't directly benefit. Finally, we need to start arresting water from just getting wasted and running into the sea.
In nearby Mapusa too, the bitumen and concrete has made keeping the rain water difficult, and so has the proliferation of flat complexes, blocks of apartments built of hard materials that do not absorb the rain But a number of solutions are possible even in urban areas. For instance, rooftop rainwater harvesting, and driveway runoff harvesting.
St. Xavier's College is thinking of creating a 1,000 tree project, entrusted to its botany department. It wants to plant every local tree species, including the amade, jambul and adao which are getting scarce now. Tanks being built in the area are to be completed in what is perhaps the driest place in Mapusa.
they must channel most of my roof-top run-off through roof gutters and piping, to underground drains which flow to the back of the property where they should plan to build a soak pit...