The latest stages of the Dungloe and Glenties Sewerage Schemes have been passed with work on the projects expected to now start next year.
The government has given Donegal County Council the ok to put the project out to tender.
The schemes will provide new wastewater treatment plants, pumping stations and sewers in Dungloe and Glenties to replace the present overloaded infrastructure.
It was already flagged in February and July of this year that the tender process was under way, but due to some issues needing clarification for government by Donegal County Council that was delayed.
Junior Minister Dinny McGinley says there should be no further hold-ups: