A front end loaders sits in front of piles of normal and colored salt to be spread on roads at the city of Plymouth maintenance facility on Thursday, Dec. 28, 2017. Fifty Minnesota lakes and streams are now on the state's impaired waters list because of too much chloride, mainly from road salt. Excess chloride has widespread implications — everything from affecting aquatic life reproduction to corroding our infrastructure to health problems for humans. (Evan Frost/Minnesota Public Radio via AP)
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