"This is a magic bit of dirt - if we have two or three fine days it will enable us to remediate very quickly and work towards restoring the grounds and getting them ready for the next event."
That remediation began yesterday when contractors were briefed and staff at times carried items by hand rather than driving over sensitive areas.
He said the arena surfaces had held out surprisingly well and that a small amount of additional work would need to be done over and above what was normally planned after such large events.
"In a normal year the society undertakes a remediation programme which sees a vast majority of the showgrounds undersown and some surface cultivation done.
"This time we have some additional work over and above that."
In areas where there had been high traffic volumes more extensive surface cultivation would be needed, including to the access ways into the grounds."
Preventing such damage by creating all-weather surfaces that could cope with such one-in-10 year deluges would be a very expensive solution, he added.
In terms of costs, he said Hastings ratepayers did not contribute directly to operational funding for the showgrounds.
"The showgrounds operate from revenue that they receive from running events and managing the venue."
He said discussions were being held with the Horse of the Year (HOY) event managers to come to an agreement on the fair allocation of costs for wear and tear.
"We will sort out a solution that works for both parties."
HOY event director Dave Mee could not be reached in time to comment yesterday.