The company's plan to manage groundwater at its thermal coal project in the Galilee Basin has been ticked off by federal Environment Minister Melissa Price after science agencies said it stacked up.

It's now up to Labor Premier Annastacia Palaszczuk's government to approve the groundwater plan, and another plan to manage the tiny and endangered black-throated finch so that construction can begin.

Ms Palaszczuk is travelling overseas on a trade mission and won't return until April 15.

But her Environment Minister, Leeanne Enoch, told reporters on Wednesday there will be no rushing this step.

Her department will take the time it needs to properly consider the plans, which she says must be in tune with the state's environmental laws.

She didn't give a timeframe.

Adani has frequently complained the state government keeps moving the goal posts when it comes to approvals for the mine.

Ms Enoch says the project is treated no differently to others, and that politics will play no part in the department's decision.

"I will not be bullied and I will not allow the regulator to be bullied," she told reporters.

"The way that we are able to ensure a thriving balance in Queensland is that we uphold the environmental laws of this state and that is my intention at every step."

Ms Price reportedly faced pressure from colleagues to sign off on the plan before the federal election.

Ms Enoch urged Ms Price to call out any colleagues who pressured her, suggesting it amounts to political interference.

Once construction starts, a number of other state and federal approvals are needed before mining can begin.

Adani Mining chief executive Lucas Dow welcomed the Morrison government approval on Tuesday, but environmentalists and the Greens were appalled.

Adani plans to lobby central Queensland households with a letter drop saying it wants the state government to get the project up and going so it can deliver thousands of jobs.

"We've provided all of this information previously, we've worked with the government and departmental officers every step of the way," Mr Dow told 2GB on Wednesday.

"If there is a requirement for us to change anything now, to be honest it can only be on the back of political intervention or interference."

The project is an issue for both federal Labor and the LNP coalition because Queensland is one of the key states needed to win federal government.

Adani's proposed Carmichael mine is popular in the state's central and northern regions, but could cost support among voters in inner-city seats who want more action on global warming.

The mine is expected to begin on a small scale and "ramp up" to a first stage capacity of 27.5 million tonnes a year.

Australian Associated Press