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TABLE 5-2 Summary of Detected Constituents In Soil' Former Dana Structural Manufacturing Facility Stockton,California,USA USEPA RSLs GP-3 GP-4 GP-5 GP-6 GP-8 WS-1 CHHSLs Analyte' (Industrial) Direct Contact- Protection of Waste 6-6' 7-8' 6-7' 6-7' 7-8' Characterization (mg/kg) Industrial Sites Groundwater x Volatile Organic Compounds VOCs 1,2,4-Trimeth (benzene NS 260 1 0.021 <0.00064 <0.00061 1 0.0022 J 1 <0.00063 1 <0.00067 1 NA m-X lene 8 -X lene NS 17,000 1.2 <0.001 <0.00097 0.0047 J 0.0042 J 0.0045 J NA o-X lene NS 19,000 1.2 <0.00042 <0.00040 0.0043 J <0.00041 <0.00044 NA Title 22 Metals' Arsenic 0.24 1.6 0.0013 8.6 61 8.8 10.1 8,4 4.6 Barium 63,000 190,000 300 NA NA NA NA NA 186 Beryllium 1,700 2,000 58 0.72 0.57 0.49 0.67 0.63 0.59 Cadmium 7.5 800 1,4 <0.13 <0.13 <0.13 <0.13 0.14 J <0.12 Chromium 37' 5.6' 0.00083' 53.9 36.2 33.1 51.4 44.4 40.1 Cobalt 3,200 300 0.49 NA NA NA NA NA 14.1 Copper 38,000 41,000 51 29.3 25.8 22.0 30.0 26 27.2 Lead 3,500 800 14 7.0 6.6 5.5 7.6 6.5 6.8 Mercury 180 34 0.030 0.019 J <0.011 0.014 J 0.017 J 0.011 J <0.010 Nickel 16,000 20,000 48 26.8 25.8 23.4 34.7 30.2 28.7 Silver 4,800 5,100 1.6 0.42 J 0.30 J 0.31 J 0.48 J 0.47 J 0.33 J Vanadium 6,700 5,200 180 NA NA NA NA NA 74.0 Zinc 100,000 310,000 680 65.1 58.9 48.8 66.4 61.7 57.5 Polycyclic Aromatic Hydrocarbons PAHs All ConstituentsND ND ND ND ND NA Total Petroleum H drocarbons TPH TPH-Unknown h drocarbon Ir NS------F NS NS 5.8 3.0 <1.3 2.6 3.0 NA Notes: Concentrations are in milligrams per kilogram(mg/kg). 1-Soil samples were analyzed for the presence of VOCs,PAHs,Title 22 metals,and TPH. Only detected analytes not attributable to blank contamination are summarized in this table;complete laboratory data reporting sheets are provided in Appendix 5.2. 2-Sample WS-1 was collected for the purpose of characterizing soil cuttings for future disposal as required in California. 3-Title 22 metals include the 13 priority pollutant metals plus barium,cobalt,molybdenum,and vanadium. CHHSLs-California Human Health Screening Levels for industrial sites. US EPA RSLs-United States Environmental Protection Agency Regional Screening Levels are provided for direct contact with soil at Industrial sites and for protection of groundwater as a drinking water source based on leaching of constituents from soil to groundwater. 'Standard for Chromium VI. NS-No standard established. NA-Not analyzed. J-Estimated result. Result is less than reporting limit. B-Method blank contamination. The associated method blank contains the target analyte at a reportable level. Bold and highlighted type In cell indicates an exceedance of one or more of the CHHSL or USEPA RSLs.