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In this May 12, 2021, file photo, Environmental Protection Agency administrator Michael Regan speaks during a press briefing at the White House in Washington. (AP Photo/Evan Vucci, File)

Michael Regan, the head of the Environmental Protection Agency, said his agency is taking a series of actions to limit pollution from a cluster of long-lasting chemicals known as PFAS that are increasingly turning up in public drinking water systems, private wells and even food.

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U.S. Steel Midwest Plant on the shore of Lake Michigan, with the Indiana Dunes Portage Lakefront and Riverwalk Trail in the foreground, in 2019. (Patty Wetli / WTTW News)

The Environmental Protection Agency confirmed the “reddish-orange discharge” that poured into Lake Michigan on Sunday from a steel plant in Portage, Indiana, was caused by high levels of iron, and says there’s no indication of health risks for people who may come into direct contact with the water.

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U.S. Steel Midwest Plant on the shore of Lake Michigan, with the Indiana Dunes Portage Lakefront and Riverwalk Trail in the foreground, in 2019. (Patty Wetli / WTTW News)

U.S. Steel is reporting that a “rusty colored” discharge that poured into Lake Michigan on Sunday from its plant in Portage, Indiana, was due to elevated iron levels.

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This May 16, 2021, photo shows window air conditioners in New York. (AP Photo / Jenny Kane)

In what officials call a key step to combat climate change, the Environmental Protection Agency is sharply limiting domestic production and use of hydrofluorocarbons, highly potent greenhouse gases commonly used in refrigerators and air conditioners.

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General Iron’s metal-shredding operation in Lincoln Park. (WTTW News)

The parent company of a now-shuttered metal recycler on the North Side will pay a fine as part of an agreement to resolve charges that the firm’s operation violated the Clean Air Act, Environmental Protection Agency officials announced Wednesday.

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An aerial shot of the newly constructed Southside Recycling, 11600 S. Burley Ave. (Courtesy of Reserve Management Group)

The parent company of General Iron, which wants to operate a metal shredding and recycling operation on Chicago’s Southeast Side, failed to notify city officials that a vacant building collapsed on the site of the proposed facility, officials said Thursday.

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An aerial shot of the newly constructed Southside Recycling, 11600 S. Burley Ave. (Courtesy of Reserve Management Group)

The city is conducting additional environmental studies after the head of the Environmental Protection Agency said the proposal raises “significant civil rights concerns.”

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An aerial shot of the newly constructed Southside Recycling, 11600 S. Burley Ave. (Courtesy of Reserve Management Group)

A federal judge will not force the city to permit Reserve Management Group, the parent company of General Iron, to operate a metal shredding and recycling operation on Chicago’s Southeast Side.

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Officials said dozens of employees at Chemtool Inc. were safely evacuated following an explosion and fires at the plant in Rockton, Illinois. (WTTW News via CNN)

An explosion at a northern Illinois chemical plant Monday morning sparked massive fires that sent flames and huge plumes of thick black smoke high into the air and debris raining onto the ground, prompting evacuations.

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A water lead testing kit. (WTTW News)

The city has yet to replace a single lead service line in the eight months that have elapsed since Mayor Lori Lightfoot rolled out her plan, officials acknowledged.

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General Iron’s metal-shredding operation in Lincoln Park. (WTTW News)

City officials agreed Friday to conduct an environmental justice assessment of the proposed shredding operation before issuing the final permit the facility needs to start operating. 

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Environmental Protection Agency (EPA) Administrator Michael Regan, speaks at Guilford Technical Community College, Monday, April 19, 2021, in Jamestown, N.C., about the Biden administration’s American Jobs Plan. (AP Photo / Carolyn Kaster)

In the first Biden administration rule aimed at combating climate change, the Environmental Protection Agency is proposing to phase down production and use of hydrofluorocarbons, highly potent greenhouse gases commonly used in refrigerators and air conditioners.

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Protesters gather near the Logan Square home of Mayor Lori Lightfoot to voice their opposition to General Iron’s plans to move to the Southeast Side on Saturday, Nov. 14, 2020. (Annemarie Mannion / WTTW News)

Convening outside a church just down the street from Mayor Lori Lightfoot’s North Side home, residents of the Southeast Side voiced their opposition to a metal shredding and recycling operation in their neighborhood.

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Lead and arsenic were discovered in the soil beneath the Hegewisch Little League field. (Google Streetview photo)

The EPA has completed cleanup of the Hegewisch Little League Field after discovering alarming levels of lead and arsenic in the soil. 

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General Iron's Lincoln Park facility. (WTTW News)

Opponents of the Lincoln Park metal shredder want General Iron closed during the COVID-19 pandemic, but if the facility checks all the right boxes, it could eventually restart operations, officials said. 

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According to preliminary findings from the EPA, manganese has been found in the soil at Hegewisch Babe Ruth Field. (Hegewisch Babe Ruth / Facebook)

After finding arsenic and lead in the soil at the Hegewisch Little League Field, the EPA tested a second a ball diamond in the neighborhood and found manganese. “We fight for every breath we take here,” said one resident.