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UST Soil Sampling TES No. 180321.001 <br /> 729 North Central Avenue, Tracy, California Page 2 <br /> FINDINGS OF THE INVESTIGATION <br /> The results of the soil sample analyses are presented in Table 1 below. The laboratory analytical <br /> report and chain of custody record are attached . <br /> TABLE RECEIVED <br /> Soil Sample Analytical Results <br /> 729 North Central Avenue MAY 2 3 2018 <br /> Tracy, California <br /> Concentrations expressed in mg1k 7 (ppm) ENVIRONMENTAL <br /> Sample ID HEALTH DEPARTMENT <br /> Analyte S1 @61 Reporting Limit <br /> Benzene ND 0. 0050 <br /> Toluene ND 0. 0050 <br /> Ethylbenzene ND 0.0050 <br /> Total Xylenes ND 0.0050 <br /> TPH-g ND 1 .0 <br /> TPH-d 2.6 1 . 0 <br /> TPH-mo 3.2 2. 0 <br /> Oil & Grease ND 15 <br /> PCBs ND 0. 050 <br /> VOCs ND <br /> SVOCS ND <br /> CAM 17 Metals <br /> Antimony 1 .0 0. 50 <br /> Arsenic 6.2 0.50 <br /> Barium 240 5.0 <br /> Beryllium ND 0. 50 <br /> Cadmium ND 0.25 <br /> Chromium 36 0.50 <br /> Cobalt 10 0.50 <br /> Copper 35 0.50 <br /> Lead 120 0. 50 <br /> Mercury 0.36 0. 050 <br /> Molybdenum 0.82 0.50 <br /> Nickel 40 0. 50 <br /> Selenium ND 0. 50 <br /> Silver ND 0.50 <br /> Thallium ND 0.50 <br /> Vanadium 43 0.50 <br /> Zinc 150 5.0 <br /> mg/kg (ppm) = milligrams per kilogram (parts per million) TPH-g = total petroleum hydrocarbons as gasoline <br /> BTEC = benzene, toluene, ethylbenzene, and total xylenes TPH-d = total petroleum hydrocarbons as diesel <br /> TPH-mo = total petroleum hydrocarbons as motor oil No = not detected at or above the R.L. <br /> VOCs = volatile organic compounds SVOCs = semi-volatile organic compounds <br /> ` = please refer to attached analytical report for complete list of Reporting Limits <br /> TECHNICON <br /> ENGINEERING SERVICES, INC. <br />