ABSTRACT
Soil should be kept clean because the complex web of animal and plant life on Earth depends on a thin layer of clean soil. Practitioners whose job it is to protect soils or to remediate soil pollution must know the several processes that work to control the rate and extent of migration of pollution in soils. The primary sources of soil pollution on petroleum-producing properties include oil wells, sumps, pits, dumps leakage from above-ground storage tanks, and spillage. Secondary sources include underground storage tanks (USTs), transformers, piping ratholes, well cellars, and pumping stations. The practice of stockpiling chemical products, if not properly managed, contributes to soil and subsurface pollution. The production and disposal of tarry substances, primarily produced in the coal gasification processes e.g., coal carbonization, carbureted water gas, are the most significant environmental soil pollution problems associated with manufactured gas plants.
