Minnesota Public Radio slideshow:
Oakdale's water contaminated; old 3M waste suspected source
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The chemicals found in Oakdale's water system were used for years by 3M to make stain repellants such as Scotchgard, and nonstick cookware. The formulas for those products were changed a few years ago. (MPR Photo/Mike Edgerly)

The chemicals found in Oakdale's water system were used for years by 3M to make stain repellants such as Scotchgard, and nonstick cookware. The formulas for those products were changed a few years ago.

(MPR Photo/Mike Edgerly)
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