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1 w <br /> y I <br /> I <br /> 8-/240033A-COT-7 Woodward-Clyde Consui#ants III <br /> i <br /> showed the highest concentrations. Chlorobenzene and ethylene dibromide <br /> were not identified in any of the soil samples, Petroleum hydrocarbons it <br /> were identified in three samples at depths of '0 .5, 2D.5 and feet in. trot m <br /> boring S-3 at concentrations ranging from 71 t1100dpmn <br /> nanyothersoil <br /> hydrocarbons exceeding detection limits were not <br /> samples. Organic lead was not detected in any of the soils tested. r <br /> As shown in Table 3, benzene, ethylbenzene, tolue�*samplestotal xfromeallnfour yam/ <br /> petroleum hydrocarbons were detected in groundwater t: <br /> monitoring wells at the site. Organic lead was not detected in any of the ; <br /> groundwater samples. <br /> 6.0 DISCUSSION <br /> both soil and groundwater <br /> Chemical components of gasoline were detected in ba, <br /> 10 storage tank area. Concentrations <br /> samples from the vicinity of the Shop /ones exceeding California <br /> f. of benzene, ethylbenzene, toluene and total xy <br /> Department of Health Services drinking water action (DWAL) were identified <br /> irect <br /> in groundwater samples from all Ftified <br /> our monitoring wells at <br /> the ed soil and groundwater samples <br /> observation in the field of recover <br /> indicates some soil and water samples have a distinct hydrockNo <br /> ater samples <br /> floating hydrocarbon free product was observed on the ground <br /> 7,0 RECOMMENDATIONS AND CONCLUSIONS <br /> Based upon WCC's field observations and the analytict�eresults <br /> raundwaterobtained <br /> and to <br /> date, petroleum-related constituents are present in 9q recommend that <br /> soils at the CalTrans Shop 10 fuel area. As a results, w_ <br /> the .ullcwing steps be taken: <br /> (1) All tanks and/or lines at the site should be teste <br /> teste fordance <br /> or <br /> leakage and, if necessary, removed or repaired <br /> with county underground storage tank regulations. <br />