Sustainable management of water utility in Samoa through services improvement with Okinawa Water Bureaus
Ryuji Ogata, Shigeyuki Matsumoto, Motomu Takara, Leiataua Semi Lesa, Keisuke UjikeThis study examines how Samoa improved the capacity of Samoa Water Authority (SWA) by implementing integrated cooperation with water utilities in Okinawa Prefecture, and hardware and software development to reduce the high non-revenue water (NRW) ratio and improve water supply quality and inadequate water pressure. Standard operation procedures were formulated to enhance the capacity of SWA. The cooperation method adopted continuous on-the-job training with a bottom-up approach. Consequently, the NRW ratio was reduced from 68 per cent to 36 per cent and water supply with proper pressure was achieved in the targeted area. The quality of the tap water, in which many coliform bacteria were detected before the cooperation, achieved 100 per cent compliance with standards. The cooperation evidenced that improving water services can help users’ understanding of tariff payments, although the water tariff increased for most consumers due to a shift from fixed to metered tariff.
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