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    <title>Escherichia coli concentrations in recreational streams and backcountry drinking-water supplies in Shenandoah National Park, Virginia, 2005-2006</title>
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    <namePart>Hyer, Kenneth E. (Kenneth Edward)</namePart>
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    <namePart>National Park Service.</namePart>
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  <note type="statement of responsibility">by Kenneth E. Hyer ; prepared in cooperation with the National Park Service.</note>
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    <topic>Bacterial pollution of water</topic>
    <geographic>Virginia</geographic>
    <geographic>Shenandoah National Park</geographic>
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    <topic>Drinking water</topic>
    <topic>Contamination</topic>
    <geographic>Virginia</geographic>
    <geographic>Shenandoah National Park</geographic>
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    <topic>Enterobacteriaceae</topic>
    <topic>Environmental aspects</topic>
    <geographic>Virginia</geographic>
    <geographic>Shenandoah National Park</geographic>
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    <topic>Escherichia coli</topic>
    <topic>Environmental aspects</topic>
    <geographic>Virginia</geographic>
    <geographic>Shenandoah National Park</geographic>
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    <topic>Pollution</topic>
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