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Open-File Report 2014-1028

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Prepared in cooperation with the Stillaguamish Tribe of Indians

Contaminants of Emerging Concern in the Lower Stillaguamish River Basin, Washington, 2008–11

By Richard J. Wagner, Patrick W. Moran, Steven D. Zaugg, Jennifer M. Sevigny, and Jody M. Pope

Abstract

A series of discrete water-quality samples were collected in the lower Stillaguamish River Basin near the city of Arlington, Washington, through a partnership with the Stillaguamish Tribe of Indians. These samples included surface waters of the Stillaguamish River, adjacent tributary streams, and paired inflow and outflow sampling at three wastewater treatment plants in the lower river basin. Chemical analysis of these samples focused on chemicals of emerging concern, including wastewater compounds, human-health pharmaceuticals, steroidal hormones, and halogenated organic compounds on solids and sediment. This report presents the methods used and data results from the chemical analysis of these samples.

Revised June 3, 2016

First posted March 3, 2014

For additional information, contact:
Director, Washington Water Science Center
U.S. Geological Survey
934 Broadway, Suite 300
Tacoma, Washington 98402
http://wa.water.usgs.gov

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Suggested citation:

Wagner, R.J., Moran, P.W., Zaugg, S.D., Sevigny, J.M., and Pope, J.M., 2014, Contaminants of emerging concern in the lower Stillaguamish River Basin, Washington, 2008–11 (ver. 2.0, June 2016): U.S. Geological Survey Open-File Report 2014-1028, 14 p., https://dx.doi.org/10.3133/ofr20141028.

ISSN 2327-638X (online)


Contents

Abstract

Introduction

Sample Collection and Analytical Methods

Quality Assurance

Quality of Water Data Results

Acknowledgments

References Cited

Appendix A. Contaminants of Concern for Which Samples Were Collected and Analyzed, Stillaguamish River Basin, Washington, 2008–11

Appendix B. Quality Control Samples Processed from the Stillaguamish River Basin, 2008–11


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