He was hopeful the tribunal would hear the lake claim about 2017.
Mr Small said the boundaries of his 80ha of flooded paddocks were all within the title of his 242ha farm on Te Pua Rd by the southeastern side of the lake.
He accused the Northland Regional Council (NRC) of putting the outlet-clearing problem in the "too hard" basket because the lake was Maori-owned.
"It's not fair," Mr Small said.
"They could clean it up very easily and we could have our land back. We need help."
Regional council operations director Tony Phipps said there had been three site inspections of the lake-side farm since about 900mm of rain during the past month had caused flooding.
An estimated 12,000 cubic metres of rain water had raised the lake level about a metre.
Mr Phipps said regional council engineers believed clearing the lake outlet with a digger would make little difference to the Small farm.
"The outlet is naturally narrow and the bowl-shaped catchment fills whenever there's a storm," Mr Phipps said.
Although the regional council would not clear the outlet, the council was not stopping the Smalls from hiring a digger to do the job, he said.
But that would require permission from the Lake Omapere Trust. And while Mr Wihongi wasn't able to say what the trustees' decision would be if asked about clearing the outlet, he predicted trouble if the digger was put to work without consultation.