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ME FEW.INIWIN <br /> low 9 <br /> Subsurface Investigation december 12, 1990 <br /> Former Unocal Station No. 2859, Stockton, California AGS 38012-5 <br /> �^ TABLE 1 -- <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> COLLECTED FROM. BORINGS K1/B1 THROUGH K6/B6 <br /> J.H. Kleinfelder and Associates <br /> January 29, 1988 <br /> Former Unocal Service Station No. 2859 <br /> 166.5 Pacific Avenue <br /> Stockton, California <br /> rµ> January 1988 <br /> Boring Depth Ethyl- Total <br /> Number (Feet) TPH Benzene Toluene benzene Xylenes <br /> KB1 25 1/2 15.8 <0.05 0.274 <3.01 <0.05 <br /> KB1 30 1/2 7.8 <.0.05 0.082 <0.01 <0.05 <br /> KB2 25 1/2 8.7 0.103 0.112 <0.01 0.212 <br /> KB2 30 1/2 8.6 <0.05 0.163 <0.01 <0.05 <br /> KB3 15 1/2 8.8 0.045 0.178 <0.01 0.136 <br /> KB3 20 1/2. 239.:0 11.2 18.0 . 18.2 41.9 <br /> KB4 15 1/2 8.5 <0.05 0.133 <0.01 <0.05 <br /> KB4 21 1/2 24.8 0.129 0.328 01.537 2.0 <br /> KB5 15 1/2 32.2 <0.05 1.71 <0.01 0.674 <br /> KB5 20 1/2 . :370.0 6.58 38.6 40.1 53.15 <br /> Results in parts per million <br /> TPH = Total petroleum hydrocarhons <br /> < = Below detection limits by r-0 hod of analysis used <br /> used <br /> K5/B5 <br /> �- - - Borings drilled by Kleinfelder <br /> kz3 <br /> 3- - -- -- - - - -- --- -- <br /> LA,4ol <br /> ear aeosr st mes <br />