Whangapoua Harbour is within the Ngati Huarere rohe and they are kaitiaki for the harbour which is considered a taonga. Ngati Huarere are concerned about the effects of the Matarangi Wastewater Treatment Plant discharge on the mauri of the harbour, swimming, the gathering of seafood and the wider cultural relationship that Ngati Huarere enjoyed with the harbour. This research project has been initiated by Ngati Huarere to investigate the impact of the Matarangi Waste Water Treatment Plant on the mauri of Whangapoua Harbour and the ecosystem.