PHOENIX — Federal officials have agreed to delay — but not give up on — their plans to convert an Arizona warehouse into a detention facility for illegal migrants.
In a proposed federal court order, attorneys for the Department of Homeland Security and Immigration and Customs Enforcement said they will conduct an "environmental assessment'' of the facility in Surprise to determine whether it is suitable to house up to 1,500 people detained on immigration violations. And they will not begin remodeling the 418,400 square-foot industrial warehouse to make it suitable for a detention center until that study is completed.
That agreement satisfies one of the complaints made by state Attorney General Kris Mayes in April when she asked U.S. District Court Judge Susan Brnovich to block the conversion. Mayes said such a study is legally required any time federal dollars are being spent on projects.
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In this case, the questions concern the environmental issues that would be raised by converting a warehouse to a detention center. That includes things like whether there is sufficient water, a strain on the sewer system, and what Mayes calls a "likely'' increase in air emissions.
But nothing in the agreement says that Mayes will drop her opposition once the study is completed.
"We just need to see how adequate their review is and if they decide to rush this,'' said press aide Richie Taylor.
The exterior of a Surprise warehouse owned by DHS that's planned for use as an ICE processing facility.
"Usually, these things take, on average, about 9 1/2 months,'' he said. "If they rush it through and do something that doesn't meet the requirements, we would challenge that, too.''
The objections that Mayes has raised in her federal court lawsuit go beyond the failure to complete the environmental assessment. Taylor said there are other legal issues.
One is the Immigration and Naturalization Act, which Mayes says requires the federal agencies to arrange for "appropriate'' places for immigration detention.
It starts with the fact that the site is directly across the street from a chemical storage facility. That, she said, creates issues if there are leaks or explosions.
Mayes has acknowledged that there already are nearby homes where residents also would be affected by such a hazard. But she said there's something different at play here.
"The major distinction is the sheer number of people who will be housed in this facility and can't get out,'' the attorney general said when she announced her lawsuit. "If this thing blows up, they will be locked in that facility with no way of getting out.''
Attorney General Kris Mayes, seen here at a news conference in April in front of the proposed ICE detention center in Surprise with Democratic state senators Catherine Miranda, left and Analise Ortiz, says federal officials have agreed to delay the building's conversion.
All that, Mayes contends, would create additional pressures on local fire departments and emergency responders. She said if Immigration and Customs Enforcement is allowed to use a warehouse to house detainees, firefighters could be forced to use so much water to protect the facility that there might not be enough to also battle a blaze at the chemical facility.
And there's something else.
Mayes said the facility is about a mile from both Dysart High School and Dysart Middle School.
"Our position would still be that this close to schools and neighborhoods and chemical plants is not an appropriate place — and won't be,'' Taylor said.
The new agreement halts all construction, demolition or retrofitting work that would be necessary to convert the warehouse into a detention center. Mayes said when she filed suit in April that federal agencies already had issued more than $300 million in contracts to oversee the necessary and extensive construction and renovation efforts.
But the federal government remains free to do other work not specifically aimed at conversion, things like repair or replacement of fencing, lighting, building security alarm systems, and other "ordinary maintenance'' of things like the roof, windows, electrical systems and plumbing.
Part of what makes the new agreement significant is that Immigration and Customs Enforcement had said in April, when Mayes first filed suit, that there was no need for any formal environmental studies.
"Prior to purchasing this site, ICE carefully evaluated the use of existing facilities to help minimize environmental impacts,'' the agency said in its statement.
But the question of whether ICE is prepared to scrap its plans for the facility it had purchased for $70 million remains unclear.
In that April statement, the agency derided the efforts by Mayes to halt conversion.
"Let's be honest about what is happening,'' the statement read.
"This isn't about the environment,'' it said. "It's about trying to stop President Trump from making America safe.''
There was no immediate response Wednesday from ICE to questions about its new decision to conduct the environmental assessment — and whether there were any second thoughts about the site.
Mayes has never made it a secret that her objections to a new ICE facility -- regardless of where it is located -- go beyond what the law requires. She has said those already detained are being mistreated and even dying unnecessarily.
One example, she said, is Emmanuel Damas of Haiti, who died in ICE custody at a facility in Florence after federal agents ignored his complaint about a toothache and instead simply gave him ibuprofen. In another case, Arbella Rodriguez Marquez, who is being treated for leukemia, has not received the necessary medication.
"A report by DHS's own Office of Inspector General detailed a pattern of abuse of detainees by ICE staff,'' Mayes said in April when she filed suit, with those who complained being segregated from others and then denied access to clean bedding and clothing and were denied legal materials.
Howard Fischer is a veteran journalist who has been reporting since 1970 and covering state politics and the Legislature since 1982. Follow him on X, formerly known as Twitter, Bluesky, and Threads at @azcapmedia or email azcapmedia@gmail.com.

