"We are concerned that someone has been injured at Toast Martinborough and that one of our coaches was involved. The driver of the coach was upset at the accident and has been offered victim support."
Mr Norman said the coach had been hired privately and was returning to Wellington when it hit the woman, near Palliser Estate Wines vineyard.
Upon police request, the bus has a full certificate of fitness inspection today and had passed an inspection on November 7.
Any review of traffic and pedestrian management at Toast Martinborough was a matter for police and the event organisers, said Mr Norman.
Toast Martinborough organisers have extended their best wishes to the woman and chairman Richard Riddiford said they were delighted to hear her injuries were not serious.
Mr Riddiford noted that the bus had been chartered privately and that the accident happened well outside the festival circuit.
"While we do everything we can to ensure a safe and enjoyable day for all 10,000 Toast Martinborough ticketholders, some things are simply beyond our control," he said.
"This was a terrible conclusion to what had probably been a fantastic day."