There are many challenges to managing landfill gas well field operation. QED Environmental Systems, a manufacturer of landfill liquid pumps and LFG control products, conducted a survey of landfill gas well field operators, asking them to report the most significant challenges they have encountered in the field. The most commonly reported challenges were odor control and maintaining compliance with landfill gas surface emission regulations. These issues were followed by a host of others, including avoiding NSPS exceedances for pressure, temperature, and oxygen, maximizing landfill gas (LFG) energy content, maintaining a steady vacuum across all wells, managing liquids to avoid accumulation in wells and system piping, and controlling air leaks at the wellhead, rubber couplings, and flex hoses. The challenges faced by LFG well field operators are numerous and diverse. However, LFG operators agree that all of the common challenges listed above can be summarized into one objective: to maximize gas collection efficiency while maintaining regulatory compliance, all at the lowest possible cost. With this singular objective in mind, let us review some LFG well field technologies and limitations.