McCrory said he's concerned about what Duke Energy knew about the spill early on, and he is giving the utility two weeks to figure out a clean-up plan.
The governor saying Duke Energy needs to step up, not just in cleaning up the spill, but at the other coal ash facilities Duke Energy has along state waterways.
McCrory told ABC11 that he wants the ash removed from all lagoons that sit on a water source.
Earlier this month, a storm-water pipe underneath Duke's coal ash pond near Eden broke. That sent some 35 million gallons of gray sludge into the river.
So far, Duke's clean-up efforts, overseen by state and federal environmental regulators, have been limited to the spill site. However, ash has been found on river bottom more than 70 miles away, and it's far from clear what the company or the state will do to get things even close to what they were before the spill.
Tuesday, McCrory sent Duke Energy a letter giving the company until March 15 to detail plans for the clean-up on the Dan River.
"We are expecting a very aggressive plan from Duke," said McCrory, "and it's time for them to step up to the plate, and take some action. Show not only me their plans but the public their plans, first the Dan River, and second at the other facilities around North Carolina."
Duke Energy has already said it will pay for clean up along the Dan River.