Laserfiche WebLink
Revised Workplan-Additional Site Investigation for PFAS BSK Project E20-016-01F <br /> Stockton Metropolitan Airport(SCK) March 1, 2023 <br /> Stockton, California Page 14 <br /> Text Table 3. Tentative Summary of Second Phase Activities and Samples by PRA <br /> Vertical GW Number Number Duplicate GW <br /> Sampling of Soil of GW GW . • . <br /> PFAS � DPT Borings Permanent Samples Samples Samples Samples <br /> Use Borings Mws to be to be to be to be <br /> PRA Analyzed Analyzed Analyzed Analyzed Comments <br /> The number of GW <br /> g samples is <br /> 1.Wash Former 0 2 2 14 (vertical) 3 4 tentative based on <br /> Rack FTA and the water level <br /> 3(MWs) observed while <br /> drilling at SCK. <br /> The number of GW <br /> 8 samples is <br /> 2. Former Former (vertical) tentative based on <br /> Runway FTA 0 2 2 14 and 3 4 the water level <br /> 3(MWs) observed while <br /> drilling at SCK. <br /> The number of GW <br /> 3.Atlantic samples is <br /> Aviation Former 0 0 0 0 1(MW) 0 0 tentative based on <br /> FTA the water level <br /> Hangar observed while <br /> drilling at SCK. <br /> Totals: <br /> Note:GW QA/QC sample includes:Field Blank,and Trip Blank.Equipment rinsate samples will also be collected at the end of the day for each <br /> day of GW sampling where reusable equipment was used and a GW sample was collected. <br /> Abbreviations <br /> PRA=Potential Release Area <br /> MW=Monitoring Well <br /> FTA=Fire Training Area <br /> GW=Groundwater <br /> QA/QC=Quality Assurance/Quality Control <br /> Figure 2 is a site map and shows the proposed locations of the four (4) groundwater monitoring wells to <br /> be installed during the first phase of investigation. Figure 5, and Figure 6 show the proposed locations for <br /> DPT borings during the First Phase of investigation in PRA 1 and PRA 2, respectively. No figures were <br /> produced for the Second Phase of investigation considering the First Phase must be completed to place <br /> additional groundwater monitoring wells and borings for vertical groundwater sampling. <br />