President Donald Trump’s administration gave California land developers and farmers a reason to cheer when the White House last month rolled back controversial regulations for wetlands imposed during the Obama presidency.

They may want to hold off on the celebration.

A powerful California water agency is poised to adopt its own regulations that could protect more of the state’s wetlands from being plowed, paved over or otherwise damaged. Environmental groups are pressuring the State Water Resources Control Board to push back against Trump’s decision and adopt a wetlands policy that’s even stricter than former President Barack Obama’s.