Conceptual Site Model - Argonne National Laboratory

WVDP Phase 1 CSAPis most likely associated with those areas affected by WVDP construction activities. Figure E.17shows where measurable groundwater impacts likely exist based on existing information.E.8 WMA 5-Specific Characterization Goals• Evaluate Appropriateness of the Current List of Radionuclides of Interest (ROI)• Verify Absence of Additional ROI• Explore the Possibility of Surrogate ROI• Determine Extent of Surface Contamination• Identify the Presence/Absence of Subsurface Soil Contamination• Identify Soil Waste Stream Characteristics• Develop an Inventory of Buried Infrastructure• Obtain Data to Support Phase 2 PlanningE.9 CSAP Pre-Remediation Data Collection and Associated Decision-MakingCSAP pre-remediation data collection will consist of a number of components described in moredetail below.E.9.1Buried InfrastructureThe footprint of buried infrastructure will be identified and mapped. Buried infrastructure thatmay exist or is known to exist within WMA 5 includes storm sewer lines and buried utilities.[required]E.9.2Gamma Walkover Survey DataThe purpose of performing a gamma walkover survey of the WMA 5 area is to identify the leveland extent of surface contamination. This includes both general trends in average activityconcentrations pertinent to the surface soil CG w requirement, as well as the identification ofisolated, more-elevated anomalies that might be indicative of discrete releases and/or surface soilCG emc concerns.Rev. 1 E-12