The head of New South Wales’ environment agencies has been sacked.

Anissa Levy, coordinator-general of environment, energy and science at the Department of Planning, Industry and Environment has been removed from her role while on leave, according to reports this week.

Insiders have alleged that Ms Levy and Energy and Environment Minister Matt Kean disagreed on matters including the allocation of firefighters to conservation issues.

Ms Levy was formerly the deputy chief executive officer of Infrastructure NSW, and also headed the state Environmental Protection Authority, but stepped down from that role in November 2018 in the wake of criticism of the EPA’s handling of a report into the use of treated waste from household bins on agricultural land.

She has been on leave while this all unfolded, with EPA boss Tracey Mackey acting in Ms Levy’s role during her time off, until January 28.