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Water is essential for human, faunal and floral physiology. Water sustains life and is essential for climatic equilibrium, the maintenance of ecosystems, agriculture, industrial processing and hydropower. In many countries, increasing population, natural resource extraction, food production, industrial activity and other land uses are producing diffuse and point source discharges which carry a wide range of contaminants into water bodies and affect the quality and quantity of water for other uses. This situation is caused by ineffective assessment, planning, utilisation and management of water by water resources management authorities, water supply and sewage disposal service providers and other sectoral users of water resources. There is an immediate and critical need for Integrated Water Resources Management (IWRM) in a catchment unit in order to ensure the sustainable use of the available water resources.

Papua New Guinea (PNG) comprises the eastern half of the New Guinea mainland, the world’s largest tropical island, along with an archipelago of additional three islands and 600-odd lesser islets and atolls. It lies in the Southwest Pacific Ocean within an Exclusive Economic Zone (EEZ) of 3 120 000 sq km and has a total land area of 462 243 sq km. The islands are high islands of volcanic origin with a maximum height of 4 496 m above sea level. PNG has an extensive system of water bodies ranging from deltas, lagoons, rivers, marshes and over 5 000 lakes

SOPAC water, sanitation and hygiene for Pacific Island countries