Open-File Report 2009–1230: Total Selenium in Irrigation Drain Inflows to the Salton Sea, California, April 2009

Total Selenium in Irrigation Drain Inflows to the Salton Sea, California, April 2009

By Thomas W. May, Michael J. Walther, Michael K. Saiki, and William G. Brumbaugh

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Abstract

This report presents the results for the final sampling period (April 2009) of a 4-year monitoring program to characterize selenium concentrations in selected irrigation drains flowing into the Salton Sea, California. Total selenium and total suspended solids were determined in water samples. Total selenium, percent total organic carbon, and particle size were determined in sediments. Mean total selenium concentrations in water ranged from 0.98 to 22.9 micrograms per liter. Total selenium concentrations in sediment ranged from 0.078 to 5.0 micrograms per gram dry weight.

Posted October 29, 2009

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Suggested citation:

May, T.W., Walther, M.J., Saiki, M.K., and Brumbaugh, W.G., 2009, Total selenium in irrigation drain inflows to the Salton Sea, California, April 2009: U.S. Geological Survey Open-File Report 2009–1230, 10 p.

Contents

Abstract

Introduction

Methods

Quality Assurance

Results

Quality Control Results

References Cited