There have been no record obtainable on (rainfall instigated) floods but recent events have identified that many low-lying areas are subject to severe ponding of water when large rainfall occurs. These events flood homes and commercial buildings, and severely curtail transportation systems. The water usually dissipates within 48-72 hours once the rain ceases.While surface flooding may affect agriculture and some infrastructure it is not considered to pose high risks as the land mass is relatively small with subdued topography and the soils for the most part are relatively free-draining. Heavy rainfall is known to cause flooding, notably at Pea, Fanga, Halaleva and Manuka.

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