One hundred and forty seven surface soil samples were collected from a contaminated site in Fuyang, Zhejiang Province for determination of concentrations of total copper, zinc, lead and cadmium in the soil. Spatial distribution of the four heavy metals in the study area was predicted using the combined prediction method (ordinary block kriging and triangular irregular network interpolation), and pollution probabilities, too, using the indicator kriging Once again based on their respective soil pollution thresholds (i.e. soil environmental quality standard), and pollution probability thresholds (i.e. 50%), pollution scopes of the heavy metals were defined separately. The two results were compared for integrated definition of scopes of their pollution. In light of the severity of the pollution, heavy metal pollution of the studied region was sorted into “Polluted”, “Unpolluted” and “Undefined”. Results of the integrated definition show that 71.7%, 80.0%, 3.0%, and 83.1% of the soils in the area were polluted by Cu, Zn, Pb and Cd, and 20.8%, 10.5%, 12.5% and 10.9% were undefined whether they were polluted by Cu, Zn, Pb and Cd or not, respectively.