Conceptual Site Model - Argonne National Laboratory

WVDP Phase 1 CSAP10.0 FIELD ACTIVITIESThis section provides additional detail regarding CSAP field activities.10.1 Soil Sampling ProtocolsSystematic and biased CSAP soil sampling, in general, will follow the protocols outlined below.Exceptions may be made for biased soil samples where the nature of the location (e.g., adjacent toinfrastructure, excavation walls, and the like) requires an adjustment. In those cases, the reasonfor the deviation and the nature of the deviation must be noted in a preservable manner (e.g., fieldnotebook dedicated to this purpose). Additional details about sampling tools and related fieldprotocols will be described in SOPs to be developed by the contractor responsible for CSAP datacollection.In general, surface soil sampling will be conducted in a manner that yields a samplerepresentative of the top 0 to 15 cm of soil and/or the top 15 cm to 1 m of soil. Where surface soilcover is present (e.g., gravel, asphalt, concrete, and the like), the top of soil is defined as theinterface between the overlying surface cover and the underlying soils. In some cases, such ashardstands, surface cover can be more than 1-m thick. For areas where surface cover and someunderlying soil is removed in support of Phase 1 decommissioning activities (e.g., building slabremoval), the exposed underlying soil surface will be considered surface soils (with the exceptionof the deep WMA 1 and WMA 2 excavations).In general, subsurface soil samples will be representative of 1-m intervals. Depending on the typeof method used to retrieve a soil core, samples may be formed from all of the soils within a 1-minterval, or they may be formed by systemically subsampling soils from a 1-m interval.In the case of all soil sampling, sufficient mass will always be collected to allow for the analysisof all 18 ROI plus the 12 potential ROIs.Rev. 1 69