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Table A-3 <br /> GROUNDWATER ORGANIC/INORGANIC CONCENTRATION ESTIMATE <br /> Tracy Railyard, Tracy, California <br /> Halogenated Volatile Organic Compounds(ug/L) <br /> Sample Date PCE TCE 1,1,1- 1,2-DCE 1,1-DCE 1,1- Vinyl Chloro- Total <br /> Location Sampled TCA DCA Chloride ethane Hvocs <br /> TW-01 2/15/97 1.3 2.6 8.4 15 273 <br /> TW-02 2/15/97 120 1 480 30 240 1100 52 2022 <br /> TW-03 2/15/97 74 520 47 230 570 1601 <br /> -W-04 2/15/97 1-2 19 8.1 283 <br /> h1W-11A 2/15/97 1.1 2.4 38 59 1005 <br /> MW-12A 2/15/97 32 1.8 0.55 555 <br /> MW-10A 2/15/97 0.69 3.5 4.19 <br /> MW-14A 2/15/97 <br /> Average Groundwater 0.00 0.00 12.33 8758 7.83 4232 103.36 9.83 18217 <br /> Concentration <br /> Estimated Vapor <br /> Concentration(for 20 0,00 0,00 0.44 3.12 0.28 151 3.68 0.35 6.49 <br /> gpm @ 75 scfm air <br /> flow) <br /> Aromatic Volatile Organic Compounds(ug(L) <br /> Sample Date <br /> Location Sampled Total Diesel <br /> P Bezene Toluene EB Xylene Avocs Fuel HC Mu <br /> T VV-01 2/15/97 0 160 <br /> T-W-02 2/15/97 1.3 4.8 6.1 28,000 <br /> -5V-03 2/15/97 1.3 1.3 <br /> T-NV-04 2/15/97 0.57 0.37 110 <br /> MW-11A 2/15/97 7.8 1.4 4 20.2 6.200 <br /> MW-12A 2/15/97 0 800 <br /> h1W-10A 2/15/97 0 2.800 <br /> h1W-14A 2/15/97 1.4 1.4 890 <br /> Average Groundwater 2.3 7.8 1.4 4.4 15.9 29.5 51.2 <br /> Concentration <br /> Estimated Vapor <br /> Concentration(for 20 0.08 0,28 0.05 0.16 0.57 <br /> gpm @ 75 scfm air <br /> flow) <br /> Inorganic Compounds(mg/I-) <br /> Sample Date TTS A"L.1 Hardness I Fe I htn <br /> TIV-02 10/28/97 1.250 457 496 014 0.79 <br /> TIV-03 10/28/97 1,370 459 567 <01 0.086 <br /> T3V-04 10/28/97 1,270 476 475 13 1.2 <br /> MW-11A 10/28/97 934 538 418 8 2 0.3 <br /> MW-14A 10/28/97 1.110 466 510 <0.1 0.016 <br /> Average Groundwater 1,187 479 493 LO 0.5 <br /> Concentration <br />