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t4w� Nic <br /> LM17Its <br /> NS <br /> t =MW-.15 t <br /> '0.-25 <br /> 11 - <br /> (' <br /> r I <br /> I } v <br /> I <br /> rlrrrr <br /> GGW-2, o <br /> :i. <br /> ;s <br /> r-' <br /> 1 <br /> . flip i>A111l�IIil��� ��•��F' <br /> i <br /> Notes: <br /> -Grab groundwater samples were collected in June 2024. <br /> Monitoring well samples were collected on March 17 and <br /> March 18,2025. <br /> Aerial imagery source:Nearmap,June 2024. <br /> j <:constituent not detected above the laboratory method <br /> detection limit <br /> pg/L:micrograms per liter <br /> r' INS:not sampled in 2023-2025 <br /> Legend Carbon Tetrachloride Concentrations <br /> Q Grab Groundwater Boring Location Carbon Tetrachloride 0.5 pg/L Concentration Lower Zone <br /> Lower Zone Groundwater Monitoring Well Contour(dash where inferred) N First Quarter 2025 <br /> Location Railroad Line 26700 South Banta Road <br /> Defense Logistics Agency,Tracy Site j_,j Site Boundary Tracy,California <br /> Groundwater Monitoring Well Location 0 Parcel Boundary Geosyntec® Figure <br /> MW-15—sample location <br /> consultants <br /> 0.25 —carbon tetrachloride 8 <br /> concentration(pg/L) 0 380 <br /> Feet WR3133A May 2025 <br /> P:\GIS\Olin\Tracy\Project\2025-03_Biennial\Figures.aprx\Fig11_CarbonTetrachloride_Lower 5/14/2025 10:04AM(kwalton) <br />