Minnesota Public Radio slideshow:
Part 1: The science
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The mayor of Oakdale, Carmen Sarrack, took a drink of water during a news conference in January, 2005, to prove his city's water supply is still safe, even though it's been contaminated with low levels of PFOS and PFOA. (MPR Photo/Lorna Benson)

The mayor of Oakdale, Carmen Sarrack, took a drink of water during a news conference in January, 2005, to prove his city's water supply is still safe, even though it's been contaminated with low levels of PFOS and PFOA.

(MPR Photo/Lorna Benson)
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