In a statement, the council said it has accepted Dr Johnson’s resignation, with the outgoing CEO thanking staff for their work and dedication during his time in the role.

Council says day-to-day operations and services will continue as normal, and that the community will be kept informed about future decisions.

Muhammad Jawad has been appointed Acting CEO and will remain in the position until a permanent appointment is made.

But in the wake of the sudden departure, The Advertiser is reporting speculation the resignation may be linked to looming pay cuts under a South Australian Remuneration Tribunal determination.

The report says Dr Johnson’s salary package of more than three-hundred-thousand dollars was slated to be reduced by at least fifty-five-thousand dollars by late 2027, though it is unclear whether that was a factor.

The news follows last week’s resignation of Victor Harbor CEO Victoria MacKirdy, due to leave in July, as she prepares to take on the top job at South Australia’s Local Government Association.

Together, the departures add to growing concern about instability in senior leadership across councils in South Australia. Thirteen Council CEO departures in two years is putting pressure on continuity, major projects, and community confidence.