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l <br /> n ' <br /> f` <br /> CASCO Oil Company <br /> Quote No. 8115G (Revised) December 11, I990 <br /> Page 2-4 <br /> I <br /> Where floating product is less than 0.25 inch thick, Exceltech will collect a water <br /> sample. Where floating product is greater than 0.25 inch thick, the sample technician <br /> will bail the floating product until it is 0.25 inches thick or less. <br /> . I�k4IIi'V t+ Analyses <br /> A California state-certified laboratory will analyze the soil and groundwater samples <br /> using methods approved by California Regional Water Quality Control Board and the <br /> Enviropmental Protection Agency. The laboratory will analyze soil and water sample <br /> for the presence of total petroleum hydrocarbons as gasoline (TPHG) and ben,:enes, <br /> toluene, ethyl benzene, and xylene (BTEX). Exceltech plans to have a maximum of 20 <br /> soil samples (five samples per boring) and four groundwater samples analyzed. Normal <br /> turnaround time for the chemical analyses is 10 to 15 working days. Rush analysis is <br /> available for an additional charge. <br /> �3t mare Rept - <br /> ExceItech will prepare a site investigation report presenting the field and Iaboratory <br /> methods, the data obtained, conclusions, and recommendations based on the findings. <br /> Recommendations will include proposed work for further geotechnical investigation, if <br /> necessary, or a Remedial Action Plan that includes the design and installation of a vapor <br /> extraction unit. The report, which will be approved by a California-certified <br /> engineering geologist, will contain: <br /> • Logs of the exploratory borings. <br /> • Construction details of the monitoring wells. <br /> • Results of all laboratory testing. <br /> • A site map showing feature relevant to the investigation. <br /> • Conclusions and recommendations. <br />