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Table 1 - Soil Sample Analytical Results Tosco 76 Branded Facility No. 1 1 195 16500 South Interstate 5 Lathrop, California Sample Date Sample TPHg Benzene Toluene Ethyl- Xylenes MtBE MtBE Ethanol TBA DIPS EtBE TAME Lead Location Collected Depth Benzene by 8020 by 8260 and.ID (feet) (Ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (Ppm) (ppm) (ppm) (ppm) (ppm) (Ppm) (Ppnl) New Gasoline UST Complex Excavation X-1-16.5 1/6/99 16.5 NA NA NA NA NA NA 1.9 ND ND ND ND ND ND X-2-15.5 1/6/99 15.5 NA5 NA5 NA5 NA' NA' NA5 5.3 ND ND ND ND ND 3.5 Stockpiles SP-1 12/31/98 -- ND ND ND ND 0.022 ND NA NA5 NA NA' NA NA ND SP-2 12/31/98 -- ND ND ND ND 0.019 0.054 NA NA NA NA' NA NA ND SP-3 12/31/98 -- 1.3 ND ND ND 0.033 ND NA NA NA NA NA' NA ND SP4 12/31/98 -- ND ND ND ND 0.019 ND NA NA NA NA' NA NA ND SP-5 12/31/98 -- ND ND ND ND 0.017 ND NA NAS NA NA NA NA ND SP-6A-D 12/31/98 -- 34 ND ND 0.17 1.1 ND ND ND ND ND ND ND ND SP-7A-D 12/31/98 -- ND ND ND ND ND 2.1 2.4 ND ND ND ND ND ND SP-8 1/6/99 -- ND ND ND ND ND 0.12 ND ND ND ND ND ND 6.7 SP-9 1/6/99 -- 2.54 ND ND ND 0.0064 ND ND ND ND ND ND ND 4.1 SP-10 116199 -- ND ND ND ND ND 0.91 0.39 ND ND ND ND ND 3.0 SPA 1 1/6/99 -- ND ND ND ND ND 0.35 0.13 ND ND ND ND ND 2.8 SP-12 1/6/99 -- ND ND ND ND ND 0.41 0.19 ND ND ND ND ND 3.3 SP-13 116/99 1.34 ND ND ND 0.013 2.3 0.9 ND ND ND ND ND ND SP-14 116/99 -- ND ND ND ND 0.011 0.13 ND ND ND ND ND ND 2.1 SP-15 1/6/99 -- ND ND ND ND ND ND ND ND ND ND ND ND 2.6 ST-16(comp) 1/15/99 -- 3.6' 0.015 0.042 0.040 0.23 0.46 -- -- -- -- -- 9.5 ST-17(comp) 1115/99 -- 11032 NDz NDz NDz ND Z -- -- -- -- -- -- 8.1 ST-18(comp) 1/15199 -- 1301 0.056 0.42 ND ND ND -- -- -- -- -- -- 10 ST-19(comp) 1/15/99 -- 32' 0.097 0.29 0.38 1.8 0.86 -- -- -- -- -- 3.6 ST-20(comp) 1/15/99 -- 90 0.27 0.39 ND ND ND'` -- -- -- -- -- -- 4.9 ST-21(comp) 2/5/99 -- ND ND ND ND ND ND -- -- -- -- -- -- ND 140193.03 2 4115199