Introductory technical guidance for civil and environmental engineers interested in insitu air sparging treatment for contaminated soil. Here is what is discussed: 1. INTRODUCTION 2. DESIGN STRATEGY 3. DESIGN GUIDANCE-SUBSURFACE 4. WELL FIELD DESIGN 5. SUBSURFACE CONSTRUCTION 6. MANIFOLD AND INSTRUMENTATION DESIGN 7. AIR DELIVERY EQUIPMENT DESIGN 8. POWER DISTRIBUTION AND CONTROLS 9. SYSTEM APPURTENANCES 10. DESIGN DOCUMENTS.