This report explores the feasibility of capturing surface rainwater, storing the water resource on the Auroville plateau, and using it as a fresh water supply for Auroville city. Matrimandir lake is an integral part of the proposed multi-sourcing system.

Auroville depends entirely on groundwater extraction for its drinking water consumption. Groundwater resources are continuously declining, with the threat of the used aquifers becoming saline. Creating a reliable and secure Auroville water resources management programme will involve a multi-sourcing water strategy using rainwater, desalination and groundwater, combined with water saving and recycling practices, to optimize fresh water consumption within the city. A single resource will not be sufficient to meet the demand. Therefore a multi-sourcing strategy is essential.

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