REP33262

• Permit No: C1981010
• IBM Index Class Name: Report
• Doc Date: 3/18/2005
• Doc Name: 2004 AHR Section 2.5 Parts 1.0 to 7.0 Appendix A
• From: Trapper Mining Inc
• To: DMG
• Annual Report Year: 2004
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Pase 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
SIJMMARY) ...........................................................................................................2-8
3.0 GROUND-WATER QUALITY ...............................................................................3-1
3.1 TOTAL DISSOLVED SOLIDS (TDS) ....................................................................3-1
3.2 SULFATE ................................................................... ............................................3-4

3.3 pH ............................................................................... ............................................3-7
3.4 NHs AND NOs ............................................................ ............................................3-9
3.5 OTHER CONSTITUENTS ........................................... ...........................................3-9
3.6 SPRING AND SEEP WATER QUALITY .................... .........................................3-10
4.0 SURFACE WATER ...................................................... ...........................................4-1
4.1 SURFACE-WATER FLOW .......................................... ...........................................4-1
5.0 SURFACE-WATER QUALITY ................................... ...........................................5-I
5.1 TSS ............................................................................... ...........................................5-I
5.2 CONDUCTIVITY ........................................................ ...........................................5-2
5.3 OTHER CONSTITUENTS ........................................... ...........................................5-3
• Trapper Mining Company
2004 Annual Report