ARCHIVED REPORTS_DRAFT - PHASE I REMEDIAL INVESTIGATION REPORT

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Kennedy/Jenks Consultants Table 13: OU-5 Groundwater Sample Analytical Results - Metals Analytical Results(a) (Mg/1)(b) Sample Area of Sample Depth Sample Interest Location Name (ft bgs)iei Date Sb As Ba Be Cd Cr Co Cu Pb Hg Mo Ni Se Ag TI V Zn MCL 0.006 0.05 1 0.004 0.005 0.05 NE(e) 1.0 0.015(') 0.002 NE 0.1 0.05 0.1 0.002 NE 5.0 A0110 S4 OU5-AOI10- 20 12/09/05 0.0066 0.057 2.2 <0.0050 0.0095 0.22 0.097 0.23 0.061 0.00020 0.0074 0.32 <0.0050 0.0065 0.017 0.22 0.30 GW-4-20 S5 OU5-A0110- 20 12/09/05 0.018 0.071 17 <0.0050 0.27 0.67 0.26 0.51 0.16 0.00067 0.013 0.95 <0.0050 0.0074 0.022 0.47 0.88 GW-5-20 S6 OU5-A0110- 20 12/09/05 0.020 0.069 6.3 <0.0050 0.026 0.62 0.24 0.51 0.18 0.00076 0.0056 0.85 <0.0050 0.0061 0.015 0.45 0.86 GW-6-20 S7 OU5-A0110- 20 12/09/05 0.025 0.16 7.2 <0.0050 0.034 1.1 0.46 0.71 0.23 0.0016 0.0052 1.1 <0.0050 0.016 0.072 0.67 0.97 GW-7-20 S8 OU5-AOI10- 20 12/09/05 0.013 0.052 3.5 <0.0050 0.018 0.36 0.19 0.31 0.11 0.0020 <0.0050 0.64 <0.0050 0.0075 0.016 0.32 0.60 GW-8-20 S9 OU5-A0110- 20 12/12/05 0.012 0.067 2.7 <0.0050 0.017 0.35 0.13 0.33 0.095 0.00048 <0.0050 0.42 <0.0050 0.0074 0.0089 0.38 0.52 GW-9-20 S10 OU5-AO110- 20 12/12/05 0.018 0.083 7.5 <0.0050 0.024 0.49 0.27 0.56 0.18 0.0018 <0.0050 0.77 <0.0050 0.012 0.020 0.41 0.92 GW-10-20 S11 OU5-AO110- 20 12/13/05 0.0087 0.050 2.9 <0.0050 0.012 0.24 0.10 0.23 0.073 0.0014 0.010 0.33 <0.0050 0.0088 0.010 0.24 0.40 GW-11-20 S12 OU5-A0110- 20 12/13/05 0.010 0.054 4.7 <0.0050 0.014 0.38 0.14 0.28 0.084 0.00069 0.016 0.47 <0.0050 <0.0050 0.012 0.30 0.51 GW-12-20 OU5-AO110- 20 12/13/05 0.0097 0.054 4.7 <0.0050 0.014 0.37 0.14 0.28 0.085 0.00051 0.015 0.46 <0.0050 0.0050 0.012 0.31 0.51 GW-12-20A S13 OU5-A0110- 20 01/05/06 <0.0050 0.038 1.8 <0.0050 0.0063 0.11 0.13 0.12 0.031 0.00058 <0.0050 020 <0.0050 0.0064 0.016 0.18 0.17 GW-13-20 ( S14 OU5-A0110- 20 01/05/06 0.032 0.10 21 <0.0050 0.044 0.61 0.25 0.67 0.21 0.0015 <0.0050 0.83 <0.0050 0.0060 0.017 0.80 1.1 II GW-14-20 S15 OU5-A0110- 20 01/05/06 0.0053 0.041 3.5 <0.0050 0.0096 0.24 0.12 0.19 0.051 <0.00020 <0.0050 0.34 <0.0050 <0.0050 0.0083 0.24 0.33 GW-15-20 OU5-A0110- 20 01/05/06 0.0084 0.053 5.1 <0.0050 0.014 0.34 0.14 0.27 0.074 0.00044 <0.0050 0.45 <0.0050 <0.0050 0.0095 0.33 0.47 GW-15-20A S16 OU5-A0110- 20 01/05/06 0.017 0.11 9.8 <0.0050 0.031 0.73 0.43 0.60 0.16 0.0058 0.012 1.2 <0.0050 0.010 0.040 0.54 0.89 GW-16-20 S17 OU5-A0110- 20 01/05/06 0.030 0.10 9.5 <0.0050 0.041 0.70 0.33 0.85 0.25 0.00085 <0.0050 1.0 <0.0050 0.0052 0.015 0.63 1.1 GW-17-20 (a) Samples analyzed by EPA Method 6010.Samples were not filtered prior to analysis. (b) mg/I=milligrams per liter. (c) It bgs=feet below ground surface. (d) MCL=State of California Maximum Contaminant Levels,from http://www.dhs.ca.gov/ps/ddwem/chemicals/MCL/reqextract.pdf. (e) NE= Not established. (f) California Secondary MCL. (g) California lead action level,the concentration not to be exceeded in>10%of tap water samples. DRAFT Phase I Remedial Investigation Report Page 1 of 1 Former Tracy Railyard, Tracy, California g9's-gmpladminyob10510565777.18-upnlO9 mpodsln,pNahleMblel]doc