A benthic-macroinvertebrate index of biotic integrity and assessment of conditions in selected streams in Chester County, Pennsylvania, 1998-2009 / by Andrew G. Reif ; prepared in cooperation with the Chester County Water Resources Authority.

Author/creator Reif, Andrew G.
Other author Chester County Water Resources Authority.
Other author Geological Survey (U.S.)
Format Electronic
Publication InfoReston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2012.
Description1 online resource (viii, 41 p.) : ill. (some col.), col. maps
Supplemental Contenthttps://purl.fdlp.gov/GPO/gpo31230
Subjects

SeriesScientific investigations report ; 2011-5116
Scientific investigations report ; 2012-5116. ^A580890
General noteTitle from title screen (viewed on Nov. 14, 2012).
General noteGPO Cataloging Record Distribution Program (CRDP).
Bibliography noteIncludes bibliographical references (p. 36-38).
GPO item number0624-B-02 (online)
Govt. docs number I 19.42/4-4:2012-5116