2010-08-09_REPORT - M2007044

• Permit No: M2007044
• IBM Index Class Name: REPORT
• Doc Date: 8/9/2010
• Doc Name: Application for venting and monitoring radon emissions at the Whirlwind Mine
• From: ENERGY FUELS RESOURCES CORP
• To: EPA
• Email Name: GRM
• Email Name: ACS
• Media Type: D
• Archive: No

Table of Contents
1.0 INTRODUCTION .................................................................................................. 1
2.0 MINE HISTORY .................................................................................................... 3
3.0 CONSTRUCTION PLAN ...................................................................................... 5
3.1 Mining Methods ............................................................................................. 5
3.2 Mine Ventilation Methods ............................................................................. 6
3.3 Construction Plan ........................................................................................... 7
3.3.1 Phase I Ventilation System ................................................................. 8
3.3.2 Phase II Ventilation System ............................................................... 8
3.3.3 Phase III Ventilation System .............................................................. 9
4.0 RADON-222 EMISSION AND DOSE ESTIMATES ......................................... 11
4.1 Current Conditions Emissions ..................................................................... 14
4.2 Phase I Emissions ........................................................................................ 15
4.3 Phase II Emissions ....................................................................................... 15
4.4 Phase III Emissions ...................................................................................... 16
4.5 Abnormal Circumstances ............................................................................. 16
5.0 COMPLIANCE MONITORING AND REPORTING ......................................... 18
5.1 Radon-222 Monitoring ................................................................................. 18
5.2 Volumetric Flow Rate Measurements ......................................................... 19
5.3 COMPLY-R Modeling ................................................................................ 19
5.4 Corporate Certification ................................................................................ 20
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