The necessity to find sound solutions for soil pollution is intensifying due to polycyclic aromatic hydrocarbons' (PAH) toxicity and hydrophobic nature. Most reported work utilised single treatment approach but combination of multiple techniques in bioremediation is scarce. This book presents a vermitechnology study on development of an innovative tri-layer treatment for PAHs contaminated soil. The treatment therefore, provides a new insight of an environmentally sound approach particularly for on-site solution. The analysis should help shed some light on this integrative solution and should be especially useful to professionals in Environmental Science and Engineering fields, or everyone else who may be considering bioremediation techniques.