The fate of a makeshift immigrant detention center in the Florida Everglades dubbed “Alligator Alcatraz” hung in the balance on Wednesday as a federal judge considered whether building on sensitive wetlands violated environmental laws.

U.S. District Judge Kathleen Williams said Wednesday following days of testimony about the environmental impacts of the Everglades immigration detention camp that she plans to rule no later than Aug. 21 on a request to temporarily shut it down.

Last week, US District Judge Kathleen Williams ordered a 14-day halt on additional construction at the site while witnesses testified at a hearing, part of a lawsuit seeking to halt operations and further construction.