• High levels of mercury and contaminants are being removed from a vacant Chicago lot planned for a migrant tent camp.
  • Terracon Consultants released a nearly 800-page assessment indicating the removal of mercury and chemicals from the Brighton Park lot.
  • Mayor Brandon Johnson's office has expressed confidence in moving ahead, citing soil removal and the use of an "engineered barrier" for safety.

High levels of mercury and other contaminants are being removed from a vacant Chicago lot where a tent camp housing 2,000 migrants is planned, a report from a consultant hired by the city said.

The Chicago Tribune reported that the nearly 800-page assessment by Terracon Consultants released Friday night said high levels of mercury and other chemicals were being removed from the Brighton Park lot where workers had already begun building the giant tents for incoming migrants this week.

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A city official on Saturday afternoon told The Associated Press it would have to file an open records request to receive a copy of the report. The document is at the heart of roiling controversy over the site and in spite of a repeated vow from Johnson to keep the public informed, The Tribune reported.

Homeless veterans in Chicago

Military veterans arrive for a Stand Down event designed to help veterans who are homeless on June 16, 2023 in Chicago, Illinois. The city is embroiled in controversy as it prepares a vacant lot in Brighton Park for a tent camp housing 2,000 migrants. (Scott Olson/Getty Images)

Local residents have been protesting the project, saying it doesn’t meet zoning requirements and that the soil at the site, which has a long history of industrial use, is toxic.

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But Mayor Brandon Johnson's office told the Tribune that it was confident in moving ahead with the camp, citing the soil's removal as well as the use of an "engineered barrier" along the site.

"With the limited soil removal and placement and maintenance of the barrier, the site is safe for temporary residential use," Johnson's office said in a statement.

More than 23,000 asylum-seekers have been bused to Chicago from Texas since August of last year, according to the city. Other Democratic-led cities are grappling with similar influxes, including Denver, Houston, Los Angeles and New York, which has received more than 120,000 asylum-seekers.

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The state said it wouldn’t move people into the shelter until it is deemed safe. Gov. J.B. Pritzker’s office said Friday night it would not have a comment until the Illinois Environmental Protection Agency reviewed the report.

Alderwoman Julia Ramirez, who represents the ward on the City Council and has opposed the project, did not immediately respond to a message Saturday from The Associated Press.

The report came out as Chicago is scrambling to house hundreds of asylum-seekers still sheltering on sidewalks, at police stations and at O'Hare International Airport as cold weather sets in. The city announced a partnership with religious leaders this week to house 400 of the migrants in churches.

The mayors of Chicago, Denver, Houston, Los Angeles and New York have been pressing for more federal aid to deal with the surge in migrants who have been arriving in the Democrat-led cities on buses funded by the Republican governors of Texas and Florida.