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Scientific Investigations Report 2008–5025

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5025

Estimating the Probability of Elevated Nitrate Concentrations in Ground Water in Washington State

Prepared in cooperation with the Washington State Department of Health

By Lonna M. Frans

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Table of Contents

Conversion Factors and Datums

Abstract

Introduction

Methods of Investigation

Logistic Regression Results

Estimating the Probability of Elevated Nitrate Concentrations in Ground Water

Summary

References Cited

Figures

Tables

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Send questions or comments about this report to the author, L.M. Frans, (253) 552-1694.

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

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URL: http://pubs.usgs.gov/sir/2008/5025
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