GEOSCIENCE DIVISION
Map Cook Islands Federated Sates of Micronesia Fiji Kiribati Nauru Niue Papua New Guinea Republic of Marshall Islands Republic of Palau Samoa Solomon Islands Tonga Tuvalu Vanuatu
Country
Population
Land Area
Climate
Water resource
Water consumption
Country Cook Islands Cook Islands
Population 21,750 (July 2007 est.)
Land Area 236.7 km2
Climate
Water resource
Water consumption
Country Federated Sates of Micronesia Federated Sates of Micronesia
Population 107,862 (July 2007 est.)
Land Area 702 km2
Climate
Water resource Avg Rainfall: 4,928 mm per annum
Water consumption
Country Fiji Fiji
Population 918 675 (July 2007 est.)
Land Area 18,270 km2
Climate
Water resource Avg Rainfall: 2000 - 3000 mm per annum
Water consumption
Country Kiribati Kiribati
Population 107,817 (July 2007 est.)
Land Area 811 km2
Climate
Water resource Avg Rainfall: South of the equator: 1,300 mm Tarawa: 2,000 mm Northernmost islands: over 3,200mm Eastern Line Islands: less than 1,000 mm
Water consumption
Country Nauru Nauru
Population 11,528 (July 2007 est.)
Land Area 21 km2
Climate
Water resource Avg Rainfall: 2,090 mm per annum
Water consumption
Country Niue Niue
Population 1,625m(GoN statistics 2006)
Land Area 260 km2
Climate
Water resource Avg Rainfall: 2,180 mm per annum
Water consumption
Country Papua New Guinea Papua New Guinea
Population 5,795,887 (July 2007 est.)
Land Area 462,840 km2
Climate
Water resource Avg Rainfall:1000-80000 mm per annum
Water consumption
Country Republic of Marshall Islands Republic of Marshall Islands
Population 20,842
Land Area 458 km2
Climate
Water resource Avg Rainfall: 3,700 mm per annum
Water consumption
Country Republic of Palau Republic of Palau
Population 61,815(July 2007 est.)
Land Area 11,854.3 km2
Climate
Water resource Avg Rainfall: Southern attols: 4,000mm Northern attols:2,000 mm per annum
Water consumption
Country Samoa Samoa
Population 214,265
Land Area 2,944 km2
Climate
Water resource Avg Rainfall: 3,000 mm per annum
Water consumption
Country Solomon Islands Solomon Islands
Population 566,842
Land Area 28,450 km2
Climate
Water resource Avg Rainfall:1500-5000 mm per annum
Water consumption
Country Tonga Tonga
Population 116,921
Land Area 748 km2
Climate
Water resource Avg Rainfall: Varies from north and south of tonga with an estimated average of 2500 mm per annum
Water consumption
Country Tuvalu Tuvalu
Population 11.992 (July 2007 est.)
Land Area 26 km2
Climate
Water resource Avg Rainfall: 3000mm per annum
Water consumption
Country Vanuatu Vanuatu
Population 211,971 (July 2007 est.)
Land Area 12,200 km2
Climate
Water resource Avg Rainfall: 2000 - 4000 mm per annum
Water consumption
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Honiara City Water Loss Management, Sectorisation, Metering and Logging, Solomon Islands

Project Fact File
Site Honiara
Water Issues Lack of data on supply system and and no formal leak detection or pressure management programs
Water Solution Install metering and logging of all bulk water supplies; establish an active leakage control program.
Cook Islands
Solomon Islands Water Authority (SIWA) had previously to this project selected the Lower West Kola (LWK) part of the Tuvaruhu pumped water supply system as a priority. System investigations were done through analysis of MapInfo data and deploying flow and pressure loggers at selected sites throughout the system. The immediate findings from this initial action were; potentially large levels of leakage, pressure level inconsistent with topography, major restriction in the pipework close to supply point, uncertain integrity of boundary valves, wrong location and size of water meter at supply point and one of the meters at the hospital out of order causing SIWA a revenue loss of SBD 25,000.00 per month.

Solutions to these problems were presented, hospital meter and broken boundary valves for this area were immediately repaired, an upgrade of MapInfo were done together with the creation of the LWK District Metered Area (DMA). A new bulk flow meter to replace the old at the supply point were provided together with a laptop containing software to install and read the flow and pressure loggers, and custom made software to produce water balance for every DMA. Acoustic leak detection equipment were also provided by the WDM program in order to assist SIWA battle what is believed to be a system water loss of around 40%.

The WDM program holds the expertise to assist SIWA implementing the following recommendations; comprehensive sectorisation of Honiara water supply network, installation of flow meters on sectorised areas, installation of bulk flow meters on all reservoirs, investigate scope for possible pressure reduction, comprehensive leakage detection program once DMA’s have been established and comprehensive boundary valve maintenance program. More training of SIWA staff in using the full potential of MapInfo as an asset management tool is also available.