It is now expected the "settlement statements" will be sent out, either by email or post, tomorrow.

This information was provided to the Federal Court today after resident Peter Stork asked for a further update on the $92.5 million compensation payout.

Mr Stork won a brief Federal Court hearing this morning to question ongoing delays to the settlement, believed to involve as many as 2500 residents.

He said original advice from Shine Lawyers, appointed by the court to distribute the proceeds, was for the settlement statements to be sent in September.

Estimated amounts for compensation, agreed to by the Defence Department for the loss of property and business value from the ongoing PFAS contamination from the Tindal RAAF Base, have already been sent.

This week's mailout is for the actual amount.

It is believed residents will be given 30 days to appeal the decision, which may delay the actual payout until early next year.

Katherine South resident Peter Stork said a written response from Shine Lawyers to the court provided a satisfactory update and had answered his questions.

Justice Michael Lee today said it had been a "slightly more complex exercise than originally anticipated".

Justice Lee said, having been involved in previous settlement claims, believed the pace at which the settlement was occurring was "entirely appropriate".

He said he was grateful to Mr Stork for bringing the matter to his attention.

"It is important you have confidence in the process," he said.

Justice Lee originally signed orders for the settlement on June 5.

The Defence Department agreed in February to settle the class action claims from Katherine, Oakey and Williamtown.

Mr Stork said the ongoing delays in arrangement the settlement meant it could be a year after the decision before Katherine residents saw any of the money.

The basis of the legal action was that "contamination by PFAS has negatively impacted business and land values in Katherine".

The chemicals were contained in fire fighting foams used mainly in training at the base from 1988 to 2004.

As many as 2500 Katherine property owners, and at the last minute the Katherine Town Council, sought compensation from Defence for the falls in property values across the town which has come from the PFAS contamination.

The court appointed Shine Lawyers, who had taken the class action forward for Katherine, as settlement administrators.

Shine Lawyers told Katherine Times last month checks were continuing on the details of each resident who stayed in the action, their details were held by the litigation funder Omni Bridgeway.

The statements to be sent out likely tomorrow would provide the actual amounts to be paid in compensation to residents, and after that, there would be a period where people could challenge the amounts, and ask for a review.

Depending on the number of challenges, and there are a large number of individual claims, the actual payout would be further delayed.

Earlier estimates of payments vary widely depending on location, size of the property and whether they have a bore or not and have been the source of a lot of discussion in town.

There are also some residents who have approached Shine Lawyers on discovering they were not registered for the claim.

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