REP47750

• Permit No: C1996084
• IBM Index Class Name: Report
• Doc Date: 4/29/2002
• Doc Name: 2001 AHR
• From: Grestone Environmental Consultants
• To: DMG
• Annual Report Year: 2001
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

TABLE OF CONTENTS
LORENCITO CANYON MINE
ANNUAL HYDROLOGIC MONITORING REPORT - 2001 ....... ........ 1
SECTION 1-INTRODUCTION .......................... ........1
SECTION 2 -METHODOLOGY ......................... ........ 1
Groundwater .................................. ........1
Surface Water ................................. ........ 4
WaterQualiry ................................. ........4
Statistical Data Reduction Methodology ................. ........ 5
SECTION 3 -RESULTS AND DISCUSSION ................. ........ 5
Groundwater Quantity ............................ ........ 5
Groundwater Quality ............................. ........ 5
Surface Water Quantity ........................... ........ 6
Surface Water Stations ....................... ........ 6
Spring and Seep Stations ...................... ........ 6
Pond Sites ............................... ........ 7
Surface Water Quality ............................ ........ 7
Surface Water Stations ....................... ........ 7
Spring and Seep Stations ...................... ........ 7
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
Appendices
Appendix 1 Groundwater Data
Appendix 2 Surface Water Data
Appendix 3 Spring and Seep Data