Nitrogen and phosphorus data for surface water in the Upper Colorado River basin, Colorado, 1980-94

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Title Nitrogen and phosphorus data for surface water in the Upper Colorado River basin, Colorado, 1980-94
Creator Wynn, K. H.; Spahr, N. E.
Subject Water quality; Water quality -- Measurement; Water -- Phosphorus content; Organic wastes; Water -- Analysis; Water temperature
Spatial Coverage Colorado River (Wyo.-Utah); Colorado River (Colo.-Mexico); Colorado; Utah; Wyoming; Arizona; New Mexico
Description This report documents, summarizes, and provides on 3.5-in. diskette the surface-water data collected from January 1980 through August 1994 for nitrogen and phosphorus in the Upper Colorado River Basin from the Colorado-Utah State line to the Continental Divide. Ancillary data for parameters, such as water temperature, streamflow, specific conductance, dissolved oxygen, pH, and alkalinity, also are compiled, if available. Data were retrieved from the U.S. Geological Survey National Water Information System and the U.S. Environmental Protection Agency STORET (STOrage and RETrieval) system. The water-quality data are presented for sites having five or more nutrient analyses that reflect ambient stream conditions. The compiled data base contains 4,927 samples from 123 sites. The median sample period of record for individual sites is 2.5 years, and the seventy-fifth percentile is about 12 years. Sixteen sites have only five samples each. The median number of samples per site is 14 samples, whereas the seventy-fifth percentile is 65 samples. The compiled data set was used in the design of a basinwide sampling network that incorporates sites that lack historic surface-water-quality data.
Publisher U.S. Geological Survey
Date 1997
Type Text
Format application/pdf
Digitization Specifications pdf file copied from USGS website (http://water.usgs.gov/pubs/of/ofr97233/). Uploaded into CONTENTdm version 3.7.
Identifier http://water.usgs.gov/pubs/of/ofr97233/
Source Wynn, K. H.; Spahr, N. E., Nitrogen and phosphorus data for surface water in the Upper Colorado River basin, Colorado, 1980-94, Denver, Colorado: U.S. Geological Survey Open File Report 97-233, 14 p.
Language eng
Rights Management Public Domain, Courtesy of the USGS
Holding Institution University of Utah
Metadata Cataloger Kristin Willmore
ARK ark:/87278/s6028qfr
Setname wwdl_er
Date Created 2005-08-10
Date Modified 2005-08-10
ID 1145891
Reference URL https://collections.lib.utah.edu/ark:/87278/s6028qfr
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