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TABLE 11
<br /> REMEDIAL INVESTIGATION SOIL, SOIL GAS,AND GROUNDWATER SAMPLING LOCATIONS AND DEPTHS
<br /> PG&E Former Tracy MGP Site
<br /> Tracy, California
<br /> Grid Number of
<br /> Soil Sampling Soil Gas Sampling
<br /> Boring ID Location Samples Depths' Depths2 Laboratory Analyses3,4
<br /> (ft) (ft)
<br /> Al-1 Al 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals
<br /> A2-1 A2 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals,VOC, Geotechnical
<br /> A3-1 A3 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals, Geotechnical
<br /> A3-2* A3 7 1, 3, 5, 10, 15, 20, 25 NA Soil: PAH, TPH, Title 22 Metals,VOC
<br /> 131-1 B1 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals, Geotechnical
<br /> 131-2 B1 3 1, 3, 5 NA Soil: PAH, TPH, Title 22 Metals
<br /> 132-1 B2 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals, Geotechnical
<br /> C1-1 C1 4 1, 3, 6, 8 NA Soil: PAH, TPH, Title 22 Metals, Geotechnical
<br /> C2-1 C2 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals, VOC
<br /> D1-1 D1 4 1, 3, 6, 8 NA Soil: PAH, TPH, Title 22 Metals,VOC
<br /> D3-1 D3 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals,VOC, Geotechnical
<br /> E2-1 E2 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals
<br /> E2-2 D2 4 1, 3, 5, 8 NA Soil: PAH, TPH, Title 22 Metals, VOC, Geotechnical
<br /> E3-1 E3 6 1, 3, 5, 8, 10, 15 NA Soil: PAH, TPH, Title 22 Metals,VOC
<br /> Soil: PAH, TPH, Title 22 Metals
<br /> E3-2 E3 7 1, 3, 5, 8, 10, 15 NA Grab Groundwater: PAH, TPH
<br /> A1-SG1 Al 1 NA 5 Soil Gas: VOC
<br /> Al-SG2 Al 1 NA 5 Soil Gas: VOC
<br /> Al-SG3 Al 1 NA 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals, VOC;
<br /> A2-SG1 A2 1 1 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals,VOC;
<br /> A3-SG1 A3 2 1, 5 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals
<br /> A3-SG2 A3 2 1.5 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals
<br /> A3-SG3 A3 2 1 5 Soil Gas: VOC
<br /> A3-SG4 A3 2 NA 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals
<br /> A3-SG5 A3 2 1 5 Soil Gas: VOC
<br /> A3-SG6 A3 1 NA 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals, VOC;
<br /> B1-SG1 B1 2 1 5 Soil Gas: VOC
<br /> B2-SG1 B2 1 NA 5 Soil Gas: VOC
<br /> B3-SG1 B3 1 NA 5 Soil Gas: VOC
<br /> C1-SG1 C1 1 NA 5 Soil Gas: VOC
<br /> C2-SG1 C2 1 NA 5 Soil Gas: VOC
<br /> C3-SG1 C3 1 NA 5 Soil Gas: VOC
<br /> D1-SG1 D1 1 NA 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals, VOC
<br /> D2-SG1 D2 2 1 5 Soil Gas: VOC
<br /> D3-SG1 D3 1 NA 5 Soil Gas: VOC
<br /> Soil: PAH, TPH, Title 22 Metals,VOC;
<br /> E1-SG1 E1 1 1 5 Soil Gas: VOC
<br /> E2-SG1 E2 1 NA 5 Soil Gas: VOC
<br /> E3-SG1 E3 1 NA 5 Soil Gas: VOC
<br /> BK-TR-1 Off-Site 1 0.5 NA Soil: PAH, TPH, Title 22 Metals
<br /> BK-TR-2 Off-Site 1 0.5 NA Soil: PAH, TPH, Title 22 Metals
<br /> BK-TR-3 Off-Site 1 0.5 NA Soil: PAH, TPH, Title 22 Metals
<br /> BK-TR-4 Off-Site 1 0.5 NA Soil: PAH, TPH, Title 22 Metals
<br /> BK-TR-5 Off-Site 1 0.5 NA Soil: PAH, TPH, Title 22 Metals
<br /> TW-1 E2 1 NA NA Groundwater: PAH, TPH, Title 22 Metals, VOC
<br /> TW-2 C1 1 NA NA Groundwater: PAH, TPH, Title 22 Metals, VOC
<br /> TW-3 Al 1 NA NA Groundwater: PAH, TPH, Title 22 Metals, VOC
<br /> TW-4 Al 1 NA NA Groundwater: PAH, TPH, Title 22 Metals, VOC
<br /> TW-5* A3 1 NA NA Groundwater: PAH, TPH, Title 22 Metals, VOC
<br /> NA= Not Applicable
<br /> PAH = Polycyclic Aromatic Hydrocarbon
<br /> TPH =Total Petroleum Hydrocarbon
<br /> VOC =Volatile Organic Compound
<br /> * Boring A3-2 was converted to Monitoring Well TW-5
<br /> = Sampling was conducted using hand augers and direct push drilling technologies. All samples were placed in laboratory supplied glass jars.
<br /> Additional samples were selected at intervals where visual signs of lampblack or other contamination were observed.
<br /> 2 = Soil-gas samples were collected using Summa canisters and the DTSC Advisory-Active Soil-Gas Investigations (DTSC 2003).
<br /> 3= Geotechnical and VOC samples in soil not collected at all depths. For specific analytical information, please see Table 18 and Table 22, respectively.
<br /> a=Analytical Methods: PAHs (8310 for Soil/GW), TPH (8015M for Soil/GW), Title 22 Metals (6010/7000 Series for Soil/GW),
<br /> VOCs (82608 for Soil/GW, TO-15 for Soil Gas)
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