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Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97

Title:Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97
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Note:[U.S. Dept. of the Interior, U.S. Geological Survey], 2002
  
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Subject:Water quality biological assessment -- Pennsylvania -- Chester County
Subject:Water quality biological assessment -- White Clay Creek Watershed (Pa. and Del.)
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