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Water scarcity is becoming a serious problem worldwide, due to climate change, increased population, and overuse of groundwater. This paper proposes Rainwater Harvesting (RWH) system for a university campus in Mysuru, Karnataka, India, to reduce dependency on external and groundwater sources. The system collects, stores, and monitors rainwater to use for gardening and sanitation. Mysuru’s decent rainfall and climate make it a great spot for RWH system, with the university campus having the total rooftop area of 32.124 acers, it can collect 335.26 million litres annually, which is sufficient to meet the 215.5 million litres of non-potable water needs. The study uses GIS-based rooftop mapping and demand analysis, to evaluate the RWH feasibility across eight campus zones. The analysis show that Zones 1, 2, and 6 are ready for RWH, while minor changes in other zones can improve system efficiency. This plan offers campus planners a smart way to address water scarcity and sets a model for sustainable water use that other campuses could follow.

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Assessing the Feasibility of Rooftop Rainwater Harvesting: A Sustainable Solution for Water Conservation and Urban Resilience in a University Campus

  • 会议论文

  • 发表日期：

    2026年

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  • Sanjith S. Anchan,
  • Indumathi Shivamallappa,
  • M. Jayanth,
  • B. Kiranpreethi,
  • C. P. Nesara

摘要

Water scarcity is becoming a serious problem worldwide, due to climate change, increased population, and overuse of groundwater. This paper proposes Rainwater Harvesting (RWH) system for a university campus in Mysuru, Karnataka, India, to reduce dependency on external and groundwater sources. The system collects, stores, and monitors rainwater to use for gardening and sanitation. Mysuru’s decent rainfall and climate make it a great spot for RWH system, with the university campus having the total rooftop area of 32.124 acers, it can collect 335.26 million litres annually, which is sufficient to meet the 215.5 million litres of non-potable water needs. The study uses GIS-based rooftop mapping and demand analysis, to evaluate the RWH feasibility across eight campus zones. The analysis show that Zones 1, 2, and 6 are ready for RWH, while minor changes in other zones can improve system efficiency. This plan offers campus planners a smart way to address water scarcity and sets a model for sustainable water use that other campuses could follow.