Application of TREECS (trademark) to Strontium 90 for Borschi Watershed near Chernobyl, Ukraine

The Training Range Environmental Evaluation and Characterization System (TREECS ) (http://el.erdc.usace.army.mil/treecs/) is being developed by the U.S. Army Engineer Research and Development Center (ERDC) for the Army. TREECS will have varying levels of capability to forecast the fate of munitions constituents (MC) (such as high explosives (HE) and metals) found on firing/training ranges, as well as those subsequently transported to surface water and groundwater. The overall purpose of TREECS is to provide environmental specialists with tools to assess the potential for MC migration into surface water and groundwater systems and to assess range management strategies to ensure protection of human health and the environment. Although TREECS was developed for the fate of MC from ranges, it has general applicability to many other situations requiring prediction of contaminant fate in multi-media environmental systems. TREECS was applied to the Borschi watershed near the Chernobyl Nuclear Power Plant, Ukraine. At this site, TREECS was used as a modeling tool to predict the fate of radionuclides. This application also provided an additional validation test case for the TREECS Tier 2 soil model. This Technical Note (TN) describes the input data and results of this application.