The state Department of Environmental Protection on Thursday issued orders barring two proposed Immigration and Customs Enforcement detention centers from connecting to local sewer and water systems until the federal agency demonstrates it will comply with environmental regulations at the sites.

“Based on what the department has learned about DHS’s plans to convert two commercial warehouses into detention centers for 9,000 people, there are serious concerns about the environmental impacts of these actions,” Secretary of Environmental Protection Jessica Shirley said in a statement, using the abbreviation for the U.S. Department of Homeland Security. “Doubling the populations of these areas could drain drinking water sources and lead to polluted waterways from overwhelmed sewage facilities leaking raw waste into our streets and rivers. Just like anyone else, [the Department of Homeland Security] needs to demonstrate its facilities comply with environmental standards.”

The move comes a week after Gov. Josh Shapiro vowed to do everything in his power to stop ICE from converting the pair of former warehouses in Berks and Schuylkill counties into detention centers.

The facility in Tremont Township, Schuylkill County, would hold 7,500 detainees, and one in Upper Bern Township, Berks County, would hold 1,500.

Local officials say the federal government did not disclose its plans to build the facilities until after the properties were acquired and have warned that existing public infrastructure cannot handle the increased demand the facilities would create.

Earlier this month, Shapiro sent a letter to then-Homeland Security Secretary Kristi Noem warning that the state would not approve permits for the projects.

The Schuylkill County facility could require up to 800,000 gallons of water per day, “more than double the current system capacity,” Shapiro said in the letter. The Berks County center could generate 14 times more sewage than the wastewater system can handle, he wrote.

The two facilities are among at least seven warehouses ICE acquired in recent weeks around the country — including locations in Arizona, Georgia, Maryland and Texas — The Associated Press reported.

Federal immigration officials reportedly plan to spend $38.3 billion to boost detention capacity to 92,600 beds.

The Department of Environmental Protection ordered Homeland Security not to use the local sewer systems until the federal agency demonstrates it can do so safely. The order prohibits the agency from relying on holding tanks or septic systems as a substitute.

The environmental agency also ordered the local governments and their water and sewer authorities not to provide service to the detention facilities without state approval.