The pole fell about 9pm on January 15 and cut power to a building housing Southland District Health Board mental health, public health and dialysis services.
An Aurora spokesman said Aurora "took electricity to the pole", but did not maintain it, and it was owned by the district health board.
Board facilities and properties general manager Paul Pugh said the pole was one of four owned by the SDHB in the southern region.
Mr Pugh said two Dunstan poles had been assessed last year and scheduled for replacement this year as part of a programme to reroute cabling underground.
"The vast majority of our electrical assets are underground or on appropriate containments such as cable trays. We are not planning to install any more poles."
A temporary generator provided power to the building with mental, health and dialysis services while repairs were carried out to restore regular power service to the building, Mr Pugh said.
