Improvement of water supply management in Grenada through GIS-based monitoring and control system for water loss reduction

This Technology Transfer Advances Grenada's

• Nationally Determined Contribution and its third adaptation priority of improving water resource management, stating that "the management of water resources, like that of the coastal environment is crucial to the long term development of Grenada as a nation". 

Context

It is predicted that rainfall in Grenada will continue to reduce, lowering to between 25-30 percent of current values by the end of the century. At the same time, it is expected that water demands will continue to rise and increase the pressure upon available future water supplies across the island. This TA will help address these pressures by helping reduce levels of Non-Revenue Water (NRW) by strengthening the capability of NAWASA staff to monitor and address water losses and leakage.

Requested CTCN Response

• Establishment of GIS structure and procedures and providing technical and training advise to NAWASA regarding GIS data management and system integration.
• Undertake a South-South learning event with a Caribbean water utility, who has developed a more comprehensive GIS monitoring and assessment system.
• Development of District Metered Areas (DMA) pilots and training of NAWASA staff in their use.
• Undertaking a final Regional South-South exchange event involving up-to 10 members of the Caribbean water management community.

Relevant Technologies and Approaches

• Remote sensing & GIS
• Integrated Water Resources Management (IWRM)

Expected Results

• Creation of a server-based Geographical Information System GIS) for NAWASA - including detailed level training for 5-10 internal staff;
• Creation of enhanced GIS infrastructure layers which can be used to undertake an effective assessment of Non-Revenue Water (NRW) in selected pilot areas;
• Provision of a basic internet-based mapping viewer, which will enable a majority of NAWASA staff to visualise datasets held by the organisation;
• Implementation to a structured assessment method to better quantify the level of Non-Revenue Water (NRW) in Grenada to enable future targeted management to reduce NRW to below the current 22-29% position, and
• Development of a south-south knowledge sharing network between different Caribbean water management agencies including participation from a minimum of 10 organisationsDue to improved management systems and data and information flow, faster response times for providing solutions in case of leakage, etc.