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<br />1 <br />TABLE OF CONTENTS <br />' 1.0 INTRODUCTION <br />1 <br />' 2.0 SUMMARY OF HYDROLOGY MONITORING DATA ............................................................ 2 <br /> 2.1 Description of the Deserado Mine Hydrologic Monitoring Program ........................ 2 <br />' 2.1.1 Surface Water Monitoring Program ............................................................ 2 <br /> 2.1.2 Ground Water Monitoring Program ............................................................ 3 <br /> 2.2 Summary and Analysis of Deserado Mine Hydrology Data ......................................... 4 <br />' 2.2.1 Ground Water Monitoring Data ..................................................................... 4 <br /> 2.2.1.1 Alluvial Water Level Data .............................................................. 4 <br />' 2.2.1.2 Alluvial Water Quality Data ............................................................ <br />2.2.1.3 Bedrock Water Level Data ............................................................. 5 <br />5 <br /> 2.2.1.4 Bedrock Water Quality ................................................................... . 9 <br />' 2.2.1.5 Mine Water Balance ...................................................................... . 9 <br /> 2.2.1.6 NPDES Discharges ...................................................................... 11 <br />' <br />2 <br />3 2.2.1.7 Whole Effluent Toxicity (WET) Testing .......................................... <br />Red Wash Alluvial Monitoring Program 11 <br />14 <br /> . ................................................................. <br />' 3.0 HYDROLOGY AND MINE DEVELOPMENT ......................................................................... 16 <br /> 3.1 Mining Related Hydrologic Impacts ....................................................................... 16 <br /> 3.2 Comparison of Projected Impacts With Observed Impacts ................................... 17 <br />' 3.3 Significance of Impacts to Use of Water ................................................................ 17 <br /> 3.4 Effectiveness of Mitigation Measures .................................................................... 18 <br />' 3.5 Changes Necessary to Minimize Impacts ............................................................. 18 <br />i <br />1 <br />1 <br />1 <br />1 <br />~1 <br />1 <br />