Conceptual Site Model - Argonne National Laboratory

WVDP Phase 1 CSAP11/30/2010 Section 6.5and 7.3Added text to clarify when and howsoils beneath hardstands will becharacterized11/30/2010 Section I.9.3 Modified text to indicate 0- to 15-cm-depth interval sampling appliesto areas where there are no concernsabout historical soil reworking11/30/2010 Section J.7 Clarified text to state that there wereno known releases within WMA11211/30/2010 Section6.11.111/30/2010 Section 6.5andappendicesAdded text specifying that staticFIDLER readings will be collectedprior to surface soil sampling forevery location where surface soilsamples are collectedAdded flowchart showing thedecision-making process based onGWS data, and modified appendicesto be consistent with flowchart11/30/2010 Section 8.2 Added requirement to reference areawork to complete and log four soilbores down to the Lavery Till12/31/2010 Table 3 Deleted references to NUREG-1757Vol. 2 soil screening values andadded required laboratorysensitivities12/31/2010 Section 8.3 Added text clarifying how aninvestigation level would be derivedfor GWS results to guide biased soilsampling12/31/2010 Section 6.2 Modified text to indicate that theCSAP background comparison willbe based solely on the 95% UTLvalues calculated based on referencearea sample results3/10/2011 Section 6.1 Text modified to state that the FSSSOR requirement will be reducedfor WMA’s with reducedradionuclides lists to reflect theaverage dose contribution of themissing radionuclides5/25/2011 Section 2.1and Section6.135/25/2011 Section 6.5andappendicesDeleted objective 13 in Section 2.1and Section 6.13 which was toobtain data to support Phase 2decision-makingAdditional text added clarifying thenumber of systematic surface soilsamples required for areas that arePer NYSERDA comment 64Per NYSERDA comment 66Per NYSERDA comment 68Per NRC comment FSSP-1Per NRC comment CSAP-2Per NRC comment CSAP-3Per NRC comment CSAP-6Per NRC comment CSAP-7Per NYSERDA requestPer NRC commentPer DOE request to avoid confusionover the primary goal of CSAPwork, which is to support Phase 1activities and to avoid the perceptionthat the CSAP would satisfy allPhase 2 information needs.Per NYSERDA request.Rev. 1xi