BATON ROUGE - On Friday, independent tester Scott Smith showed the WBRZ Investigative Unit new data from the Smitty's fire contamination, revealing concerning results .

Smith's samples taken from several surrounding waterways showed the presence of PFAs or 'forever chemicals.'

"It's highly carcinogenic and causes a lot of problems at very low levels," Smith said.

Also on Friday, DEQ gave the all clear to reopen the Tangipahoa River.

Tangipahoa Parish President Robby Miller has been working alongside Smith, learning from his 20 years of chemical disaster response experience.

"He helped us to know from an outside perspective what we should be asking for," Miller said.

The PFAs likely came from fire fighting foam used to put out the massive fire at the plant that burned for two weeks

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