Soil washing is a remediation process which is primarily used to treat soils and sludges which are contaminated with only one or two groups of contaminants. This process, however, has not been extensively employed on soils that are contaminated with pesticides in addition to metals and volatile organic compounds. This paper describes the development of a new soil washing process which is used to remove these mixed pollutants from soils. The experimentation results determined that a combination of 2.5 N sulfuric acid and isopropyl alcohol in a 4:9 ratio and with a dilution of 5:1, solution to soil, would form as effective wash solution.