Passive Soil Vapor Extraction - GSI Environmental Inc.

SRNL-STI-2009-00571Rev. 1Passive Soil Vapor ExtractionTABLE OF CONTENTSEXECUTIVE SUMMARY.............................................................................................................. i1.0 TECHNOLOGY SUMMARY............................................................................................... 11.1 Problem Statement .................................................................................................... 11.2 Solution ...................................................................................................................... 11.3 How It Works.............................................................................................................. 21.4 Deployment Summary ............................................................................................... 31.5 Commercial Availability and Contacts ........................................................................ 42.0 TECHNOLOGY DESCRIPTION......................................................................................... 62.1 Theoretical Basis ....................................................................................................... 62.2 Description of Equipment ......................................................................................... 102.3 System Operation and Maintenance ....................................................................... 132.4 Long-Term Monitoring for PSVE Applications ......................................................... 142.5 Site Transition to MNA............................................................................................. 183.0 TECHNOLOGY APPLICABILITY AND ALTERNATIVES .............................................. 193.1 PSVE Technology Strengths ................................................................................... 193.2 PSVE Technology Weaknesses .............................................................................. 203.3 Competing and Complementary Technologies ........................................................ 234.0 TECHNOLOGY PERFORMANCE................................................................................... 265.0 KEY CONSIDERATIONS DURING SELECTION OF A PSVE TECHNOLOGY............. 325.1 Decision Framework for Selection of PSVE Technologies...................................... 336.0 OCCUPATIONAL SAFETY AND HEALTH..................................................................... 456.1 Technology-Specific Health and Safety Risks......................................................... 456.2 Worker Safety .......................................................................................................... 456.3 Community Safety.................................................................................................... 457.0 REGULATORY AND POLICY ISSUES........................................................................... 467.1 Regulatory Considerations ...................................................................................... 467.2 Risks, Benefits, and Community Reaction............................................................... 467.3 Environmental Impact .............................................................................................. 467.4 Socioeconomic Impacts and Community Perception .............................................. 478.0 COST FOR USE OF PSVE TECHNOLOGIES WITHIN AN EA STRATEGY ................. 488.1 Cost Drivers ............................................................................................................. 488.2 Site-Specific Scenarios............................................................................................ 549.0 REFERENCES .................................................................................................................... 58APPENDIX A. PREDICTING MASS FLUX FOR A BAROMETRIC PUMPING APPLICATIONBASED ON SITE SPECIFIC PARAMETERSivEnhanced Attenuation TechnologiesPassive Soil Vapor Extraction