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�� <br />. March 18, 1993 Working To Restore Nature <br /> ARCO Station No 6100, Tracy, California <br /> TABLE 1 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> COLLECTED FROM BORINGS B-26 THROUGH B-28 <br /> ARCO Service Station No. 6100 <br /> 25775 Patterson Pass Road <br /> Tracy, California <br /> Sample Ethyl- Total <br /> Number TPHg Benzene Toluene benzene Xylenes <br /> S-41. 4-B26 <1. 0 0. 21 0. 029 <0 . 0050 0. 072 <br /> S-51-B26 23 0. 71 - 1. 0 0. 39 1. 8 <br /> S-66.5-B26 , 10, 000 140 520 180 800 <br /> S-71-B26 7 , 800 87 430 150 630 <br /> S-85.5-B26 3 , 200 69 250 41 160 <br /> S-110-B26 ✓ <1. 0 0. 0064 <0. 0050 <0 . 0050 0. 0074 <br /> S-11.5-B27 <1. 0 .01:s6f3 ti 0. 0066 <0 . 0050 0. 0053 <br /> S-40-B27 8, 800 100 490 160 730 <br />•' S-16. 5-B28 - <1. 0 <0. 0050 <0. 0050 <0. 0050 <0. 0050 <br /> S-64-B28 <1. 0 0. 095 0. 028 <0. 0050 0 . 045 <br /> S-71-B28 <1. 0 0 . 018 0. 020 <0 . 0050 0. 0092 <br /> S-122292--1A-D 39 0. 0050 0. 29 0. 089 2 . 0 <br /> Soil results in parts per million (ppm) <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Less than the detection level for the analytical <br /> methods used <br /> Sample designation: <br /> S-51-B26 S-122292-1A-D <br /> ' Boring number Composite A,B,C,D <br /> Depth of sample Date of sample <br /> Soil Soil <br /> i <br /> i <br /> 1231ccar <br /> 30041-4 <br /> I <br />