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Fuller Mobile Home Par- <br /> 365 E Louise Ave., Lathrop, California January 28, 1998 <br /> Eastern Soil Contaminatin Boundary and Confirmation Work Plan Page: 3 <br /> The cuttings from the drilling operation will be containerized in 55 gallon steel <br /> drums, pending the results of laboratory data. <br /> 3.2 Soil Sampling <br /> All soil sampling equipment will be thoroughly cleaned before and between <br /> sampling to prevent cross contamination. Relatively undisturbed soil samples will <br /> be taken at intervals of not more than 5 feet in order to evaluate the subsurface <br /> materials, however, this sampling interval may be waived in saturated sands in <br /> which sample recovery is not possible. <br /> The soil samples will be taken using a hand driven spoon sampler with brass liners. <br /> A laboratory soil sample will be taken at the prescribed depths during the boring of <br /> each well. The laboratory samples will not have head space and will be immediately <br /> 4 sealed in their liners using aluminum foil-lined plastic caps. All soil samples will be <br /> L properly labeled with project nametnumber, date and time collected, sample <br /> identification and analysis requested. Samples will be additionally sealed in air-tight <br /> plastic bags before being immediately refrigerated for delivery to the laboratory, and will <br /> under no circumstances be opened by anyone other than laboratory personnel. Chain of <br /> Custody records will be maintained at all tunes. <br /> Soil samples collected for analysis will be analyzed using 8015M/LUFT for total <br /> petroleum hydrocarbons - gasoline, diesel EPA method 8020 for BTX&E and EPA <br /> Method 8260 for oxygenated compounds. The minimum detection limits used for <br /> each analyte will be .005 mg/kg for BTX&E, and 1.0 mg/kg for gasoline and diesel. <br /> Analyses are to be conducted by California Laboratory Service, Inc., a State- <br /> certified laboratory in Rancho Cordova, California. <br /> rp Vv, � <br /> Prepared by: <br /> Etr{r&s:June 34,m <br /> 'CALsf <br /> W. H. Fox, II,REA <br /> California Registered Environmental Assessor#00620 <br />