REP51330

• Permit No: C1996084
• IBM Index Class Name: Report
• Doc Date: 3/12/2003
• Doc Name: 2002 Annual Hydrology Report
• From: Greystone Environmental Consultants
• To: DMG
• Annual Report Year: 2002
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

TABLE OF CONTENTS
LORENCITO CANYON MINE
ANNUAL HYDROLOGIC MONITORING REPORT - 2002 ............... ................1
SECTION 1 -INTRODUCTION ................................................. ................1
SECTION 2 -METHODOLOGY ................................................. ................1
Groundwater .................................................................. ................1
Surface Water ................................................................. ...............4
Water Quality ................................................................. ...............4
Statistical Data Reduction Methodology .................................. ...............5
SECTION 3 -RESULTS AND DISCUSSION .................................. ............... 5
Groundwater Quantity ....................................................... ............... 5
Groundwater Quality ......................................................... ...............6
Surface Water Quantity ...................................................... ...............6
Surface Water Stations ............................................. ...............6
Spring and Seep Stations ........................................... ............... 7
Pond Sites ............................................................. ...............7
Surface Water Quality ....................................................... ............... 7
Surface Water Stations ............................................. ...............7
Spring and Seep Stations ........................................... ............... 8
Pond Sites ............................................................. ............... 8
Conclusions .................................................................... ............... 8
SECTION 4 -REFERENCES CITED ............................................ ............... 9
Tables
Table 1-1 Hydrology Monitoring Requirements Lorencito Canyon Mine ...........................2
Table 1-2 Water Quality Parameter Sample Suites Lorencito Canyon Mine ........................ 3
ces
Appendix 1 Groundwater Data
Appendix 2 Surface Water Data
Appendix 3 Spring and Pond Data