"The core business of teaching and learning appears to have only marginally improved for some students, not for all, and not in a sustainable way."
The Advocate contacted the school's kaumatua, Hori Parata, and trustee Robert Carpenter but neither could comment.
As part of the specialist audit, the Education Review Office has identified: student achievement concerns remain and the quality of teaching remains poor; inadequate curriculum leadership continues to impact negatively on students; the curriculum is not and has not been consistent with the broad ranging curriculum vision articulated in the contract and a lack of basic literacy and numeracy underpinning qualification credits achieved.
Of the five original trustees, only one, Robert Carpenter, remained. Ms Parata said her decision was not a reflection on the current board.
"They have done what they could in the time available to install sound governance and administrative control and to stabilise the kura's finances. There has, however, been insufficient progress in teaching and learning and the long term viability of the kura remains uncertain due to its heavy reliance on third parties, the difficulty of attracting suitably qualified teaching staff and uncertainty over the future roll."
Labour's Acting Education spokeswoman Jenny Salesa said while the students of Whangaruru were the ultimate victims, the losers were taxpayers. More than $4.4 million has been spent on the kura, including $620,000 for a 81ha farm the trust bought for the school.