"Having another social worker available to engage with families will enable us to be more responsive," Ms Doble said.
In a show of gratitude Ms Doble and Mr Metcalfe presented Mr Goldsworthy with a framed card signed by the staff at Jigsaw, the trading name of the Family Support Services Whanganui Trust.
Mr Goldsworthy, known also as Plumber Dan, said the race would be held again next year.
"We had a few teething issues with some ducks not doing what they were supposed to, but yes, we'll be back next year," he said.
Prizewinners and a video from this year's race is available on the Jigsaw Whanganui Facebook page.