The rehabilitation of all flowing wells penetrating the Great Artesian Basin in South Australia will take approximately seven years to complete at an estimated cost of $700,000. The funds available to the Mines Department will allow rehabilitation during the current financial year of fourteen wells at a cost of $56,000. Rehabilitation of Nunns, Angus,'McEwin, and Welcome wells will be completed in such a manner as to allow as far as possible for a controlled flow for preservation of existing wetlands, and the associated ecological systems. Other wells in the current programme will be shut off or controlled for stock watering where required.