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The Waioeka River catchment covers 825 km2 and is relatively steep with extensive bush cover. The rivers’ lower reaches meander across flood plains before being joined at Opotiki by the Otara and flowing out to sea. Intensive rainstorms occur in the catchment with associated flooding and gravel movement being difficult to control.


The Waioeka River is showing increasing trends for suspended solids and ammonium-nitrogen. Overall nitrogen levels are low as are indicator bacteria although these are also showing an increase over time. These trends may indicate increased agricultural activity or stock access to the river.

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Monitored sites in the Waioeka catchment

...retrieving sites.

No sites found.

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