Laserfiche WebLink
Site Inspection UFP-QAPP Addendum <br />Stockton AASF, Stockton, California <br />Soil IDW (i.e., drill cuttings) generated during SI activities will be containerized in properly labeled <br />55 -gallon drums (See SOP 3-05). The containerized IDW will be temporarily stored onsite at a <br />location designated by the CAARNG. This IDW will not be sampled and will assume the PFAS <br />characteristics of the associated soil samples collected from that source location. Based on <br />laboratory results, containerized soil cuttings will be managed and disposed by ARNG, either by <br />offsite disposal or, where PFAS concentrations are below the relevant state criteria, ARNG will <br />distribute the soil on the downgradient side of the associated borehole. ARNG will further <br />coordinate in advance with RWQCB to ensure proper disposal in accordance with state <br />requirements and the Army Guidance for Addressing Releases of PFAS, Q18 (DA, 2018). <br />Liquid IDW (i.e., purge water and decontamination fluids) generated during SI activities will be <br />containerized in properly -labeled 55 -gallon drums (see SOP 3-05). The containerized IDW will be <br />temporarily stored onsite at a location designated by CAARNG. The liquid IDW will not be sampled <br />and will assume the PFAS characteristics of the associated groundwater samples collected from <br />the source locations. Based on laboratory results, containerized liquid IDW will be managed and <br />disposed by ARNG (either by offsite disposal or onsite disposal, with treatment as appropriate) <br />under a separate contract in accordance with SOP No. 042A for Treating Liquid Investigation - <br />Derived Material (Purge water, drilling water, and decontamination fluids) (EA Engineering, <br />Science, and Technology, Inc., 2021). ARNG will further coordinate in advance with the RWQCB <br />to ensure proper disposal in accordance with state requirements and the Army Guidance for <br />Addressing Releases of PFAS, Q18 (DA, 2018). <br />Where IDW is allowed to be returned to the ground surface at the source of generation (as <br />described above), ARNG will collect global positioning system (GPS) points (i.e., polygons) <br />around the location where the IDW was placed. <br />Other solids such as spent PPE, plastic sheeting, tubing, rope, unused monitoring well <br />construction materials, and other environmental media generated during the field activities will be <br />disposed of at a licensed solid waste landfill. <br />AECOM QAPP Worksheet #17 <br />Page 8 of 10 <br />