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�./ 1�e/ Project No. 076-97005 <br /> Page No.4 <br /> 1 = Depth in feet below surface grade <br /> BTEX = Benzene,toluene, ethylbenzene, and xylenes by EPA Method 8020 <br /> TPH-D = Total petroleum hydrocarbons as diesel by DHS EPA Method 8015M <br /> ND = Not detected at or above the detection limit(refer to Appendix A) <br /> According to the analytical results, trace concentrations of TPH-D (less than or equal to 1.8 <br /> milligrams per kilogram, [mg/kg]) were detected beneath the USTs and pipe excavation. No detectable <br /> concentrations of BTEX were detected beneath the USTs or product pipelines. <br /> r <br /> .. 4.0 RECOMMENDATIONS <br /> Krazan recommends that a copy of this report be submitted to the following: <br /> .. Mr. Eric Trevena <br /> San Joaquin County Public Health Services,Environmental Health Division <br /> 304 East Weber Avenue,3rd Floor <br /> P.O. Box 388 <br /> Stockton,California 95201-0388 <br /> 5.0 LIMITATIONS <br /> The findings of this report were based upon the results of our field and laboratory investigations, <br /> coupled with the interpretation of subsurface conditions associated with the UST excavation. Therefore, <br /> the data are accurate only to the degree implied by review of the data obtained and by professional <br /> �- interpretation. <br /> The excavation and sample locations were located in the field by review of available maps and <br /> �. by pacing or tape measurements from existing landmarks. Therefore, the excavation and soil sample <br /> locations should be considered accurate only to the degree implied by the methods used to locate them. <br /> Chemical testing was done by a laboratory approved by the State of California Certified <br /> Hazardous Waste Laboratory. The results of the chemical testing are accurate only to the degree of care <br /> of ensuring the testing accuracy and the representative nature of the soil samples obtained. <br /> The findings presented herewith are based on professional interpretation using state of the art <br /> �. methods and equipment and a degree of conservatism deemed proper as of this report date. It is not <br /> ` KRAZAN&ASSOCIATES,INC. <br /> Offices Serving the Western United States <br /> 7697005.TR <br />