2006-11-16_GENERAL DOCUMENTS - C1981044

• Permit No: C1981044
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 11/16/2006
• Doc Name: 2006 Annual Report Methane Assessment
• From: Greystone Environmental Consultants, Inc
• To: DRMS
• Permit Index Doc Type: General Correspondence
• Email Name: KAG
• Media Type: D
• Archive: No

TABLE OF CONTENTS
t - _ --- - - - -_- - - A-
EXECUTIVE SUMMARY
1.0 PREVIOUS INVESTIGATION AND SITE HISTORY ............................................................. 1-1
1.1 Methane Investigation Activities .................................................................................... 1-1
' 2.0 MINING AND OIL AND GAS DEVELOPMENT ..................................................................... 2-1
2.1 Mining Development ...................................................................................................... 2-1
2.2 Natural Gas Development ............................................................................................... 2-1
' 3.0 METHANE MONITORING AND RESULTS ............................................................................ 3-1
4.0 CONCLUSIONS ..........................................................................................................................4-1
' TABLES
' Table 1 Field Analysis Methane Seep Near Weston, Colorado .......................................................... 1-4
FIGURES
' Figure 1 Site Location Ma .. 1-2
Figure 2 Site Map with Monitoring Locations ..................................................................................... 1-3
' Figure 3 Site Map with Monitoring Locations Illustrating Effected Environment .............................. 3-2
' APPENDICES
Appendix A - COGCC Correspondence
Appendix B - Monitoring Point Concentration Diagrams
2006 Methane Monitoring Report 'I I.02.06).doc 1