Whanganui District Council has settled its legal action against global engineering consultant MWH over its work on the wastewater treatment plant.
But details of the settlement will not be made public.
A mediation process was finished in November and the two parties have agreed to settle the claim the councilbrought against MWH over the design of the plagued treatment plant.
"The parties have agreed to this settlement in order to bring to an end the ongoing uncertainty and the need to fund and participate in a trial that would otherwise take place towards the end of this year," council chief executive Kym Fell said yesterday.