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U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5075

Nitrogen Species in Soil, Sediment, and Ground Water at a Former Sewage-Treatment Wastewater Lagoon: Naval Air Station Whidbey Island, Island County, Washington

Prepared in cooperation with the U.S. Department of the Navy, Navy Region Northwest

S.E. Cox, R.S. Dinicola, and R.L. Huffman

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Table of Contents

Conversion Factors, Datums, Abbreviations and Acronyms

Abstract

Introduction

Sample and Data Collection and Analysis

Ground-Water Levels

Ground-Water Quality

Nitrogen in Soils and Sediment

Assessment of Potential for Ground-Water Contamination

Summary and Conclusions

Acknowledgments

References Cited

Figures

Figure 1. Location of the former sewage lagoon, Naval Air Station Whidbey Island, Island County, Washington.

Figure 2. Location of drive-point wells, soil and sediment sampling sites, and water-level altitudes measured August 10, 2006 at the former sewage lagoon, Naval Air Station Whidbey Island, Washington.

Tables

Table 1. Construction and water-level data for drive-point wells installed at the former sewage lagoon, Naval Air Station Whidbey Island, Washington, June and August 2006.

Table 2. Ground-water quality data collected from drive-point wells at the former sewage lagoon at Naval Air Station Whidbey Island, Washington, June and August 2006.

Table 3. Nitrogen and organic carbon concentrations in composite soil and sediment samples collected and analyzed by the U.S. Navy at the former sewage lagoon, Naval Air Station Whidbey Island, Washington, June 2006.

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Send questions or comments about this report to the author, S.E. Cox, (253) 552-1623.

For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.