A benthic-macroinvertebrate index of biotic integrity and assessment of conditions in selected streams in Chester County, Pennsylvania, 1998-2009
By: by Andrew G. Reif ; prepared in cooperation with the Chester County Water Resources Authority
Contributors: Chester County Water Resources Authority; Geological Survey (U.S.)
Series: Scientific investigations report -- 2011-5116; Scientific investigations report -- 2012-5116
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 2012
Place of publication: Reston, Va
Language: eng
Format: [electronic resource] /
Number of pages: 41
Subjects: Water quality; Benthos
Notes: Title from title screen (viewed on Nov. 14, 2012).

Includes bibliographical references (p. 36-38).