Developers will be prohibited from constructing already-approved housing construction in the Phoenix area due to dwindling groundwater supply, according to an article from The New York Times.

State officials determined that there is not enough groundwater to supply all the new development planned in the Phoenix metro area — meaning the fast-growing population boom could soon come to a halt.

Governor Katie Hobbs said that while Arizona is not “immediately running dry,” a predictive analysis for the next 100 years showed that groundwater levels won’t be enough to sustain these new developments.

“We’re going to manage this situation,” Hobbs said at a news conference. “We are not out of water, and we will not be running out of water.”

Moving forward, Arizona will not grant permits for homes in some parts of Maricopa County that would need to rely on well water. Developers will need to pursue other water sources, including rivers and aqueducts and recycled wastewater. Developers can also attempt to buy river access, though that water supply is dwindling as well.

Sarah Porter, director of the Kyl Center for Water Policy at Arizona State University, said these limitations will likely not affect short-term growth in cities like Phoenix, Scottsdale and Mesa. “There is still capacity for development within designated cities,” Porter said.

In cities like Queen Creek, which doesn’t have a designation from the state determining it has enough water to support new population growth, the problem is more immediate. Developments in these cities must prove they can supply water to their residents for 100 years without the use of groundwater.

Despite this news, 80,000 housing lots are still expected to join the Phoenix market in the coming months and years.