Data Quality Objectives Summary Report Designing a Groundwater Monitoring and Assessment Network for the 100-BC-5 and 100-FR-3 Operable Units

摘要

The 100-BC-5 and 100-FR-3 Operable Units are defined for groundwater beneath the 100-B/C and 100-F Areas, respectively. Each operable unit has undergone a limited field investigation and qualitative risk assessment as part of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) remedial investigation process. Although decisions have been made to perform active remediation of contaminant sources, no decision has yet been made concerning remedial actions for groundwater at either operable unit. During this interim period, groundwater monitoring has been conducted in accordance with groundwater sampling and analysis plan for the 100-BC-5 Operable Unit (Sweeney 2002a) and 100-FR-3 Operable Unit (Sweeney 2002b) under Federal Facility Agreement and Consent Order (TPA) change control agreements between the U.S. Department of Energy (DOE) and U.S. Environmental Protection Agency (EPA). This report is the culmination of the decision process that will guide future data acquisition at these two operable units. The data gathered will be used to develop future closure decisions, leading ultimately toward a record of decision for the 100-BC-5 and 100-FR-3 Operable Units.