REP41515

• Permit No: C1981010
• IBM Index Class Name: Report
• Doc Date: 3/16/2006
• Doc Name: 2005 Annual Hydrology Report Cover Letter to Section 2.8
• From: Trapper Mining Inc.
• To: DMG
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

TABLE OF CONTENTS

U
I•
Pare Number
1.0 INTRODUCTION .................................................................................. ..................... 1-1
2.0 GROUND-WATER LEVELS ................................................................ .................... 2-1
2.1 GROUND WATER-LEVEL CHANGES ............................................. ...................... 2-2
2.1.1 SUMMARY .......................................................................................... ......................2-2
2.1.2 WATER-LEVEL CHANGES ............................................................... ...................... 2-3
2
2 GROUND WATER-LEVEL ELEVATION (PIEZOMETRIC MAP
. SU1vIlvIARY) ......................................................................................... ...................... 2-8
3.0 GROUND-WATER QUALITY ............................................................ ...................... 3-1
3.1 TOTAL DISSOLVED SOLIDS (TDS) ................................................. ...................... 3-1
3.2 SULFATE ............................................................................................. ...................... 3-5
3.3 pH .......................................................................................................... ...................... 3-8
3.4 NH3 AND N03 ...................................................................................... ...................... 3-9
3.5 OTHER CONSTITUENTS ................................................................... .................... 3-10
3.6 SPRING AND SEEP WATER QUALITY ........................................... .................... 3-11
4.0 SURFACE WATER .............................................................................. ...................... 4-1
4.1 SURFACE-WATER FLOW .................................................................. ...................... 4-1
5.0 SURFACE-WATER QUALITY ........................................................... ...................... 5-1
5.1 TSS ........................................................................................................ ......................5-1
5.2 CONDUCTIVITY .......................................................................................................5-2
5.3 OTHER CONSTITIJENTS ......................................................................................... 5-3
Trapper Mining Company ~
2005 Annual Report