Modernizing water system in Chicago may increase lead levels

A new study calls into question the safety of Chicago’s drinking water – wherever construction crews are replacing old water mains.

The professional journal, “Environmental Science and Technology” released results from the study, pointing to elevated lead levels where the Department of Water Management is replacing pipes made of toxic metals.

The news comes as Chicago rushes to complete a massive effort to replace century-old water mains across the city.

The Chicago Tribune says the city’s on schedule to replace more than 75 miles of aging pipes and mains – more than twice the number of lines replaced in 2012.

The Chicago Department of Water Management has thus far declined to comment over the new study.

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