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<br />CONTENTS <br />Page <br />1 INTRODUCTION 1 <br />2 LOCATION AND INSTALLATION OF WINDY GULCH WELLS, <br />DRIVE POINT PIEZOMETERS, AND WEIRS 3 <br />2.1 Monitoring wells 3 <br />2.2 Shallow drive point piezometers 4 <br />2.3 Windy Gulch weirs 6 <br />3 WINDY GULCH MONITORING 9 <br />3.1 General 9 <br />• 3.2 Water levels 9 <br />3.3 Streamflow 10 <br />3.4 Water quality 10 <br />4 WINDY GULCH DATA ASSESSMENT 17 <br />4.1 Flow characteristics of Windy Gulch 17 <br />4.2 Water quality characteristics 19 <br />5 WILLOW CREEK WATER QUALITY 21 <br />5.1 Historic solute concentrations in Willow Creek 21 <br />5.2 Chemical loading 22 <br />5.3 Conclusions 24 <br />TABLES <br />2.1 Summary of well construction details and well locations 3 <br />2.2 Drive point piezometer construction details and locations 4 <br />2.3 Summary of Bulldog weir construction details and stageldischarge relationships 6 <br />3.1 Water quality sample collection dates in Windy Gulch installations 11 <br />3.2 Summary of Windy Gulch well chemistry analyses 12 <br />3.3 Summary of Windy Gulch drive point piezometer chemistry analyses 14 <br />3.4 Summary of Windy Gulch weir chemistry analyses 15 <br />• 4.1 Comparison of well and drive point piezometer water levels to nearby stream bed <br />elevations 1 S <br />