Introductory technical guidance for mechanical engineers, civil engineers, environmental engineers and other professional engineers and construction managers interested in landfill gas collection. Here is what is discussed: 1. INTRODUCTION, 2. METHODS OF LFG COLLECTION, 3. LFG MONITORING PROBES, 4. COVER PENETRATIONS, 5. HEADER PIPING, 6. VALVES, 7. WELLHEADS, 8. HEADER SYSTEM LAYOUT, 9. CONDENSATE COLLECTION, 10. DESIGN PROCEDURES FOR PASSIVE COLLECTION SYSTEMS, 11. DESIGN PROCEDURES FOR ACTIVE WELL COLLECTION SYSTEMS.