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Waitangi Tribunal rules on Motunui claim

18 March 1983

Cover of the first Waitangi Tribunal report
Cover of the first Waitangi Tribunal report (Waitangi Tribunal; artwork by Cliff Whiting)

In a landmark ruling, the Waitangi Tribunal (see 10 October) found that the Crown’s obligations under Te Tiriti o Waitangi included a duty to protect Māori fishing grounds.

One of the early claims to the tribunal (Wai 6) was made by Te Āti Awa of Taranaki, who opposed the construction of an outfall to discharge waste from the Motunui synthetic fuels plant, 6 km east of Waitara, into the Tasman Sea.

The tribunal found that industrial waste from Motunui – one of the National government’s flagship ‘Think Big’ energy projects – had already polluted Taranaki fishing grounds. The proposed outfall should not be built and a regional task force should be set up to find an alternative way to treat the waste.

On 28 March, Prime Minister Robert Muldoon announced his government’s rejection of the tribunal’s recommendations. After much public debate, the government introduced legislation designed to placate Te Āti Awa while still allowing eventual construction of the outfall. In the wake of further uproar, provision for an outfall was removed from this bill in September 1983.

How to cite this page

Waitangi Tribunal rules on Motunui claim, URL:, (Manatū Taonga — Ministry for Culture and Heritage), updated