Water

Pilot and Demonstration Activities
Appropriate Information System for Integrated Water Resources Management: An Exploratory Trial in the Cimanuk River Basin

In Indonesia, currently available water resources databases are based on administrative divisions, such as districts and provinces. These databases do not account for hydraulic boundaries, such as groundwater divides and streamlines that provide clues to groundwater movement and help estimate the volume of available water.

The lack of information about the relationship and overlaps between hydraulic and administrative boundaries affects decision making on the various competing uses of water from a given water resource. In many cases, administrative boundaries run contrary to hydraulic systems, and this gap hinders integrated water resources management.

In Java, home of 60% of Indonesia's 210 million people, the effective management of water resources is obviously a necessity. Rapid urbanization diverts agricultural land to residential, industrial, and services needs. The demand for agricultural produce continues to increase. Appropriate allocation of raw water for irrigated agriculture, industry, and households, requires utmost attention.

As a response, Indonesia passed its Law on Water Resources in 2004, which mandates that surface water management be based in river basins less than or equal to 2,000 square kilometers, where integrated water resources management can be introduced. The law also specifies that government and regional governments shall manage a water resources information system to support water management. Given a particular river basin, such an information system should include data on

• Hydrological, hydro-meteorological, hydro-geological conditions
• Water resources policies
• Water resources infrastructure
• Water resources technology
• Water-related social, economic, and cultural activities of communities that rely on the river basin.

This PDA will establish a Geographic Information System (GIS) for Water Resources Management in the Cimanuk River Basin in West Java, Indonesia-one of the river basins identified for immediate attention under the National Action Programme for Partnership in Water Conservation (GN-KPA). Specifically, data will be obtained from the Cipanas-Pangkalan sub-basin (total surface area: 982 square kilometers), and will serve as the foundation for Cimanuk River Basin database.

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This PDA was completed on 31 October 2007. Read the Final Report [PDF].

• Final Report (October 2007) [PDF]
• Proposal (January 2007) [PDF]