[en] The monitoring program at the WISS measures radon and thoron gas concentrations in air; external gamma radiation levels; and uranium, radium, and thorium concentrations in surface water, groundwater, and sediment. To verify that the site is in compliance with the DOE radiation protection standard (100 mrem/yr) and to assess its potential effect on public health, the radiation dose was calculated for the maximally exposed individual. Based on the conservative scenario described in the report, this individual would receive an annual external exposure approximately equivalent to 1 percent of the DOE radiation protection standard. By comparison, the average American receives a dose of 1 mrem/yr from watching color television. The cumulative dose to the population within an 80-km (50-mi) radius of the WISS that would result from radioactive materials present at the site would be indistinguishable from the dose that the same population would receive from naturally occurring radioactive sources. 23 refs., 8 figs., 17 tabs