In a powerful move towards environmental sustainability, Chhatrapati Shivaji Maharaj International Airport (CSMIA) in Mumbai has implemented a rainwater harvesting system that saves an impressive 26 lakh litres of rainwater during every monsoon season.
This initiative not only reflects the airport’s commitment to eco-conscious operations but also sets a precedent for green infrastructure in high-traffic urban zones.
As one of India’s busiest airports, handling millions of passengers annually, CSMIA has been integrating sustainability into its core operations. The rainwater harvesting project is part of its broader Environment Management Programme, which focuses on water conservation, energy efficiency, and waste reduction.
The 26 lakh litres collected is used for non-potable operations like cooling systems, sanitation, and landscaping — significantly reducing reliance on freshwater sources.
The rainwater harvesting system is strategically designed to capture runoff from terminal rooftops and paved surfaces. Through a network of collection tanks, filtration units, and underground storage, the airport maximizes its water reuse potential, especially during the peak monsoon months from June to September.
CSMIA’s water conservation efforts align with its Carbon Neutral Airport status and India’s larger vision under the National Water Mission and Smart Cities initiative. Officials say this system could be scaled to other airports and urban buildings to tackle water scarcity.
“We believe every drop counts,” said a CSMIA spokesperson. “This is not just about saving water—it’s about creating a sustainable future.”
With 26 lakh litres saved every season, CSMIA is proving that when infrastructure meets innovation, sustainability takes flight.
