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Annual Report 2007 - Antofagasta plc

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CHAIRMAN’S REVIEWChairman’s Review continuedWater and ForestryWaterAguas de <strong>Antofagasta</strong> S.A. (ADASA)(100 per cent owned)ADASA continued implementing a long-termprogramme to improve services during the fourth yearof its 30-year concession. The following objectiveswere achieved:Aguas de <strong>Antofagasta</strong>’s water distribution system• water losses were further reduced to 26.5% witha target of 25% by 2009;• costs were controlled without affecting the qualityand reliability of supply;DesalinationPlantTOCOPILLAMEJILLONESANTOFAGASTATALTALCALAMAMantesBlancos SpenceSQMFilter PlantSalar delCarmenFilter PlantTaltalWaterCatchmentLequenaChuquicamataFilter PlantCerro TopaterWater SupplyLineC H I L EAgua VerdeWellsMixerTankEl Tesoro -EsperanzaWaterCatchmentQuinchamaleWaterCatchmentToconceCities / TownsMines / ProjectsFacilities ofAguas de Antofagsta• services to domestic customers were improvedwith fewer interruptions to supply; and• demand from mining and other industrial customerswas met by improvements in supply and fewerdelays in connection and installation to theirfacilities.Water sales to domestic users in <strong>2007</strong> increasedby 1.9% to 29.0 million cubic metres compared to28.5 million cubic metres in 2006 while sales to minesand industrial users increased by 16.3% from 9.3million cubic metres in 2006 to 10.9 million cubicmetres in <strong>2007</strong> due to increased demand from themining sector, particularly BHP Billiton’s Spence mine.ADASA is expecting growth starting in 2008 fromsales of re-treated water in Calama to mines andindustrial users. Water shortage in the <strong>Antofagasta</strong>region has become acute, as the traditional watersources from the Río Loa and the Loa basin havebeen restricted by the environmental and waterauthorities, although demand from industrial users,towns and agricultural enterprises throughoutthe II Region has increased.0 50 100Kms0 50100MilesThird party facilityDistribution linefor untreated waterDistribution linefor potable waterIn future, ADASA will supply the city of <strong>Antofagasta</strong>from the desalination plant located to the north of thecity and supply the mining and other industrial users inthe Calama region to the north with water from localsources.18<strong>Antofagasta</strong> <strong>plc</strong> <strong>Annual</strong> <strong>Report</strong> and Financial Statements <strong>2007</strong>

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