Fiscal Year 1994

Chapter III of the US Department of Energy (DOE) Order 5820.2A (DOE 1988) specifies requirements for the management of facilities that were used for the disposal of radioactive solid low-level waste (LLW) on or after the date of the order (September 26, 1988). Activities in Solid Waste Storage Area (SWSA) 6 at Oak Ridge National Laboratory (ORNL) are governed by Chapter III. Chapter II of 5820.2A covers the transuranic (TRU) waste storage areas in SWSA 5 North at ORNL. Both chapters require environmental monitoring to provide early warning of leaks before such leaks pose a threat to human health or the environment. Chapter III also requires the monitoring of LLW disposal facilities so that their performance can be evaluated. In order to comply with this Order, the Environmental Sciences Division (ESD) at ORNL implements the Active Sites Environmental Monitoring Program (ASEMP) for the Radioactive Solid Waste Operations (RSWO) Department within the Waste Management and Remedial Action Division (WMRAD) at ORNL. The scope of the ASEMP includes all ORNL waste disposal sites that were active on or after the date of the Order and that are under the operational control of the RSWO Department of WMRAD. This report continues a series of annual and semiannual reports that present the results of ASEMP monitoring activities. This report details monitoring data for fiscal year (FY) 1994 and is divided into three major areas: SWSA 6, including the Interim Waste Management Facility (IWMF) and the Hillcut Disposal Test Facility (HDTF), the low-level Liquid-Waste Solidification Project (LWSP), and the TRU-waste storage areas in SWSA 5 N. This report presents a summary of the methodology used to gather data for each major area along with the results obtained during FY 1994. Tables of data collected are presented in Appendix A. Program-specific procedures used to collect the data are presented at the end of the report in Appendix B