FIELD CALIBRATION AND VERIFICATION OF A PATHOGEN

2,53

MB

TRANSPORT MODEL

52

stron

6579

ID

Water Environment Research Foundation

2004

rok

TABLE OF CONTENTS

Acknowledgments. iii

Abstract and Benefits v

List of Tables . vii

List of Figures viii

List of Acronyms . ix

Executive Summary ES-1

1.0 Introduction 1-1

1.1 Preliminary Studies 1-1

1.2 Structure of the Report.1-1

2.0 Theory . 2-1

2.1 The Transport Model2-1

2.2 Risk Assessment 2-4

2.3 Extension to Watershed Applications 2-6

3.0 Experimental Studies.3-1

3.1 Tilting Soil Chamber: Construction and Assembly .3-1

3.2 Plot Experiments 3-2

3.3 Partitioning Studies 3-4

3.3.1 Soil Particle Separation3-4

3.3.2 Soil Absorption 3-5

3.3.3 Calibration of the Coulter Counter.3-6

3.3.4 Experimental Setup 3-7

3.3.5 Soil Absorption Experiments .3-7

3.3.6 Particle Counting: Oocyst Adhesion to Clay Particles 3-8

3.3.7 Oocyst Adhesion to Silt Particles.3-9

3.3.8 Oocyst Adhesion to Sand Particles 3-11

3.3.9 Photomicrograph Results for Soil Particle and Oocyst Adhesion . 3-11

4.0 Conclusions and Suggestions for Future Work.4-1

AppendixA-1

References R-1