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Flooding imposes significant costs on households and businesses located in the lower Vaisigano catchment area. SOPAC, under the European Development Fund (EDF) project Reducing Vulnerability of Pacific ACP States, has worked with the Government of Samoa to develop the Samoa Flood Management and Action Plan, which identifies actions for government agencies, the private sector, NGOs and communities responsible for flood and floodplain management that can assist in reducing flood risks in Samoa, particularly in the lower Vaisigano catchment area located in Apia, which is subject to frequent flooding.

The economic and social wellbeing of Pacific Island Countries are dependent upon the quality and quantity of their freshwater. Constrained by their relative small size, natural vulnerability, and limited human and financial resource base, Pacific Small Island Developing States face specific challenges to effectively manage their water resources.

Provides applied ocean, island and coastal geoscience services to support countries to govern and develop their natural resources, increase their resilience to hazards and facilitates data-based approaches to adaptation

Samoa, a volcanic archipelago, consists of two large islands (Upolu and Savaii) and several small ones with a total land area of approximately 2 935 sq km. It lies in the southwest Pacific in an Exclusive Economic Zone (EEZ) of 120 000 sq km, the smallest in the Pacific area. The country has a total population of 168 000, estimated in 1999 . More than half of the population lives on Upolu, where the capital Apia is located. Samoa has a tropical climate with a rainy season from October to April and a dry season from May to September. Rainfall varies from 5 000 mm to 7 000 mm on the windward side and 2 500 mm to 3 000 mm on the leeward side.

SOPAC water, sanitation and hygiene for Pacific Island countries