"It's all about large-scale filtration which is a huge upgrade for Raetihi.''
A diesel spill that began on September 26, 2013 at the Turoa Ski Area leaked 19,000 litres of diesel into the Makotuku waterway. The small river supplies Raetihi's water and the town was without drinking water for three weeks.
Ruapehu Alpine Lifts was later prosecuted and pleaded guilty to four charges. It was fined $300,000 for three of them.