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        An official website of the United States government.

        We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

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        • ?? ?? U.S. Geological Survey information about the water cycle
        • ?????? ??? ???? - 7?? ?? ??? (48 ???, 26,000 KB) Protecting your family from earthquakes – the seven steps to earthquake safety PDF ?? ?? ??

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