Environmental

In Illinois, lead service lines (pipes bringing water from the street main to a home) are particularly common in:

ARural agricultural areas
BNewer suburban developments built after 2000
COlder urban and suburban areas with pre-1986 plumbing infrastructure, especially in Chicago✓ Correct
DIndustrial zones only

Explanation

Lead water service lines are a significant health concern in Illinois, particularly in Chicago, which is estimated to have over 400,000 lead service lines—one of the highest concentrations in the nation. Lead pipes installed before 1986 can leach lead into drinking water, especially in older housing.

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