By Steven J. Gerner and Kidd M. Waddell
The hydrology and water quality of an urbanized reach of Little Cottonwood Creek near Salt Lake City, Utah, were examined as part of the Great Salt Lake Basins study, part of the U.S. Geological Survey National Water-Quality Assessment program. Physical and chemical properties of the stream were referenced to established aquatic-life criteria as available. Two fixed sampling sites were established on Little Cottonwood Creek with the purpose of determining the influence of urbanization on the water quality of the stream. The fixed-site assessment is a component of the National Water-Quality Assessment surface-water study design used to assess the spatial and temporal distribution of selected water-quality constituents.
The occurrence and distribution of major ions, nutrients, trace elements, dissolved and suspended organic carbon, pesticides, volatile organic compounds, and suspended sediment were monitored during this study. From October 1998 to September 2000, stream samples were collected at regular intervals at the two fixed sites. Additional samples were collected at these sites during periods of high flow, which included runoff from snowmelt in the headwaters and seasonal thunderstorms in the lower basin.
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Foreword
Abstract
Introduction
Purpose and Scope
Description of Study Area
Land Use and Urbanization
Stream Classification
Methods of Sample Collection and Data Analysis
Hydrology
Stream Characteristics
Streamflow Components
Water Quality
Properties
Major Ions
Nutrients
Trace Elements
Pesticides
Volatile Organic Compounds
Effect of Storms
Spring and Summer
Winter
Summary
References Cited
Appendix
Quality-Control Procedures and Results
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