ALEXANDRIA, Va. — It seemed like a simple task: Make a few calls and figure out whether the tap water in my 136-year-old row house near the nation’s capital is contaminated with lead. More than a ...

ALEXANDRIA, Va. — It seemed like a simple task: Make a few calls and figure out whether the tap water in my 136-year-old row house near the nation’s capital is contaminated with lead. More than a ...

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