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Scientific Investigations Report 2010–5048

Prepared in cooperation with the Bureau of Reclamation

Dissolved-Solids Load in Henrys Fork Upstream from the Confluence with Antelope Wash, Wyoming, Water Years 1970–2009

By Katharine Foster and Terry A. Kenney

Abstract

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Annual dissolved-solids load at the mouth of Henrys Fork was estimated by using data from U.S. Geological Survey streamflow-gaging station 09229500, Henrys Fork near Manila, Utah. The annual dissolved-solids load for water years 1970–2009 ranged from 18,300 tons in 1977 to 123,300 tons in 1983. Annual streamflows for this period ranged from 14,100 acre-feet in 1977 to 197,500 acre-feet in 1983. The 25-percent trimmed mean dissolved-solids load for water years 1970–2009 was 44,300 tons per year at Henrys Fork near Manila, Utah.

Previous simulations using a SPAtially Referenced Regression On Watershed attributes (SPARROW) model for dissolved solids specific to water year 1991 conditions in the Upper Colorado River Basin predicted an annual dissolved-solids load of 25,000 tons for the Henrys Fork Basin upstream from Antelope Wash. On the basis of computed dissolved-solids load data from Henrys Fork near Manila, Utah, together with estimated annual dissolved-solids load from Antelope Wash and Peoples Canal, this prediction was adjusted to 37,200 tons. As determined by simulations with the Upper Colorado River Basin SPARROW model, approximately 56 percent (14,000 tons per year) of the dissolved-solids load at Henrys Fork upstream from Antelope Wash is associated with the 21,500 acres of irrigated agricultural lands in the upper Henrys Fork Basin.

First posted March 26, 2010

For additional information contact:

Director, Wyoming Water Science Center
U.S. Geological Survey
2617 East Lincolnway, Suite B
Cheyenne, Wyoming 82001

http://wy.water.usgs.gov/

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Suggested citation:

Foster, K., and Kenney, T.A., 2010, Dissolved-solids load in Henrys Fork upstream from the confluence with Antelope Wash, Wyoming, water years 1970–2009: U.S. Geological Survey Scientific Investigations Report 2010–5048, 16 p.



Contents

Abstract

Introduction

Estimation of Dissolved-Solids Load

A Case Study Using the Upper Colorado River Basin SPARROW Model, Henrys Fork, Wyoming and Utah

Summary

References Cited


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