The severe heat wave that's led to record temperatures in the southwest is set to expand this week, according to the National Weather Service.

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EPA Estimates 9.2M Lead Pipes Carry Water Into Homes
Some 9.2 million lead pipes carry water into homes across the U.S., with more in Florida than any other state, according to a new Environmental Protection Agency survey that will dictate how billions of dollars to find and replace those pipes are spent.
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