Central Otago's Manuherekia catchment has been given a funding boost to clean up the waterway.
Environment Minister David Parker today said it would be the third catchment area to benefit from the At-Risk Catchment programme - which provides $12 million over four years nationally.
The money would initially be used to install fencing, restore wetlands in Thomson's Creek, assess fish levels and address concerns over native species.
Earlier this year, Otago Fish & Game Council said a report into water quality in the catchment made for sobering reading.
The report, which focused on water quality issues from the past 10 years, was presented at a meeting of the council in Roxburgh in July.