GENERAL31095

• Permit No: C1981013
• IBM Index Class Name: General Documents
• Doc Date: 12/30/2002
• Doc Name: 2002 Annual Report Methane Assessment
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

TABLE OF CONTENTS
EXECUTIVE SUMMARY ................................................................................... ......................... 4
1.0 PREVIOUS INVESTIGATION AND SITE HISTORY ................................. ......................... 5
1.1 METHANE INVESTIGATION ACTIVITIES ..................................... ......................... 5
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2.0 MINING AND OIL AND GAS DEVELOPMENT ........................................ ....................... 18
2.1 MINING DEVELOPMENT .................................................................. .......................18
2.2 NATi JRAL GAS DEVELOPMENT ...................................................... ...................... 18
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3.0 METHANE MONITORING AND RESULTS ................................................ ...................... 20
4.0 CONCLUSIONS ............................................................................................... ...................... 21
' S.0 RECOMENDATIONS ..................................................................................... ...................... 22
FIGURES
Figure 1 Site Location Map ............................................................................... ........................ 6
Figure 2 Site Map with Monitoring Locations .................................................. ........................ 7
' TABLES
Table 1 Field Analysis Methane Seep Near Weston, Colorado ....................... ........................ 8
APPENDICIES
APPENDIX A MONITORING POINT CONCENTRATION DIAGRAMS
APPENDIX B COGCC CORRESPONDENCE

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