Money is still being donated to the MRI scanner fundraising campaign by "caring and generous community-minded people", according to Aoraki Foundation chairman Nigel Davenport.
"The support has been outstanding from the word go," he said.
The scanner, which is located at Timaru Hospital, cost $2.8 million.
To date, $3.1m has been given to the campaign, which began in 2011.
Davenport said the residual funds have been invested and the interest will be used for maintenance and repair of the scanner.
"The MRI scanner is an asset owned by the people of South Canterbury. It was bought by the people for the people."
He said the fundraising campaign "hit the right button at the right time".
The scanner, which had been on the South Canterbury District Health Board's wish list since 1999, has a 10-year life expectancy.
"I think when we talk about the MRI scanner, everyone sees it as an asset for our own health."
The Aoraki Foundation is a registered charitable trust and was established to promote philanthropy in the Aoraki Region. The foundation has facilitated a number of community projects and has raised $15m since 2009.
The scanner was unveiled during a ceremony at Timaru Hospital in March last year.
Having a scanner in Timaru meant South Canterbury people no longer had to travel to Christchurch for a scan.
- The Timaru Herald