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Old infrastructure led to E. coli in Baltimore water, officials say

Aging infrastructure contributed to an E. coli contamination of the city of Baltimore’s water system in early September, officials said.

A confluence of events in several parts of the water system reduced chlorine levels, which led to three positive tests for E. coli, a Department of Public Works official told The Washington Post.

City officials also detailed their findings during a City Council hearing Thursday.

The contamination led to a boil water advisory for a wide swath of the city and into Baltimore County, which is served by the city system.

No illnesses were linked to the contaminated water, a city spokeswoman said Friday.