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USGS Data Series 423

Selected Physical, Chemical, and Biological Data Used to Study Urbanizing Streams in Nine Metropolitan Areas of the United States, 1999–2004

National Water-Quality Assessment Program

By Elise M.P. Giddings, Amanda H. Bell, Karen M. Beaulieu, Thomas F. Cuffney, James F. Coles, Larry R. Brown, Faith A. Fitzpatrick, James Falcone, Lori A. Sprague, Wade L. Bryant, Marie C. Peppler, Cory Stephens, and Gerard McMahon


This report documents and summarizes physical, chemical, and biological data collected during 1999-2004 in a study titled Effects of Urbanization on Stream Ecosystems, undertaken as part of the U.S. Geological Survey’s National Water-Quality Assessment Program. Data-collection methods and data processing are described in this report for streamflow; stream temperature; instream chemistry; instream aquatic habitat; and algal, macroinvertebrate, and fish communities. Data summaries prepared for analytical use are presented in downloadable data tables.

Posted April 2009

View Report as HTML

View Report as PDF (415 KB)

Download data files

Individual Tables

Tables 1-9 (ZIP file, 5.6 MB)

All Tables (ZIP file, 56.5 MB)





Purpose and Scope

Description of Study Objectives


Data-Collection and Processing Methods

Watershed Characteristics

Land Cover

Socioeconomic Characteristics


Urban Intensity Index

Hydrologic Modifications

Soils, Topography, and Climate

Instream Characteristics


Stream Temperature

Stream Chemistry

Nutrients and Pesticide Compounds

Hydrophobic Organic Compounds


Segment Characteristics

Reach Characteristics

Biological Communities




Laboratory Analysis

Data Processing

Algal Response to Urbanization

Invertebrate Response to Urbanization

Fish Response to Urbanization

Data Files



Report Citation

Giddings, E.M.P., Bell, A.H., Beaulieu, K.M., Cuffney, T.F., Coles, J.F., Brown, L.R., Fitzpatrick, F.A., Falcone, James, Sprague, L.A., Bryant, W.L., Peppler, M.C., Stephens, Cory, and McMahon, Gerard, 2009, Selected physical, chemical, and biological data used to study urbanizing streams in nine metropolitan areas of the United States, 19992004: U.S. Geological Survey Data Series 423, 11 p. + data tables.

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