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Workers install a copper pipe to replace a lead service line that brings drinking water to homes Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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Copper pipe sits at right as a worker helps to replace a lead service line that brings drinking water to homes Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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A lead pipe that brought drinking water to homes sits on a workstation after it was replaced with copper Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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A lead pipe, bottom, is visible as a worker installs a copper pipe to replace a lead service line Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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Workers install a copper pipe to replace a lead service line that brings drinking water to homes Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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Workers install a copper pipe to replace a lead service line that brings drinking water to homes Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)

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Workers install a copper pipe to replace a lead service line that brings drinking water to homes Tuesday, July 21, 2026, in Chicago. (AP Photo/Alyssa Goodman)