ABSTRACT
Soil samples were collected from the soil stockpile and analyzed in a laboratory for total petroleum hydrocarbons (TPH) by Environmental Protection Agency Method. Treatment of the stockpiled soils utilizing bioremediation required that hydrocarbon-degrading bacteria indigenous to the soils be stimulated through the provision of optimal conditions for growth. Soil treatment at the landfill required that the soils be transported from the high school to the landfill. A maximum of 1000 ppm of TPH in the soils, in conjunction with the cessation of biological activity, were the agreed-upon closure goals for the treatment cell. To calculate the proper volume of nutrients to add to the soils and to document concentrations of TPH prior to treatment, soil samples were collected from the soil stockpile. Soil analytical and photoionization detector monitoring data indicates that approximately 24,200 pounds of hydrocarbons were removed from the soils during the course of the project.
