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thoroughly steam-cleaned between borings to eliminate the possi- <br /> bility of cross--contamination. Drilling permit applications for <br /> the two properties are attached to this workplan, with the <br /> necessary fees. <br /> 3. The rig will be equipped with either a 18" California Modi- <br /> fied Split-spoon sampler or wireline operated continuous coring <br /> equipment to enable obtaining soil samples as required. <br /> 4. .moil samples will be visually examined & described, and a <br /> portion of each core will be screened with a PID meter for <br /> evidence of contamination. This will be done by placing a <br /> portion of the soil from the metal sleeve in a plastic bag; it <br /> will be promptly sealed and allowed to set for a few minutes to <br /> allow any gases present to volatize prior to inserting the probe <br /> from the PTD meter into the bag and recording the reading. <br /> Selected portions of the cored material will be preserved at <br /> least every 5 feet from 20' to approximately 65' , (15--20' above <br /> the water table. ) Soil samples will be taken under the direction <br /> of the geologist on location, using properly cleaned metal. tubes. <br /> Additional soil samples may be obtained if the geologist fools it <br /> is necessary to do so. <br /> 5_ Soil samples will be briefly described, and promptly sealed <br /> and preserved on ice pending tranfer to a State Certified <br /> laboratory for analysis. At the completion of operations, or <br /> sooner if deemed necessary, the preserved soil samples will be <br /> delivered under proper chain of custody to FGL laboratory with <br /> instructions to test for BTEX & TPH-G, (EPA Method 8015M/8020, ) <br /> using detection limits as specified by the San Joaquin Co. EHD. <br /> 6. Removed spoil from the auger flights and unpreserved core <br /> material will be stored in properly marked and sealed drums and <br /> stored on site pending the results of the laboratory analysis. <br /> Any fluids producing during steam cleaning or sampling operations <br /> will also be stored on site in properly marked containers for <br /> later disposal.. <br /> 7. Upon reaching the desired depth, a water sampling device, <br /> (Hydropunch or BAT, ) will be lowered through Lite hollow-seem <br /> augers & driven into the soil below the auger fligh s LuiLl i <br /> groundwater has been encountered. A minimum of uwo ul is cuzue L <br /> water samples will be obtained from each soil boring as directed <br /> by the geologist. The samples will be promptly sealed, labeled <br /> and preserved pending transport to FGL laboratory for analysis. <br /> 8. Upon completion of the above operations, each soil boring <br /> will be promptly grouted from total depth to the surface with a <br /> 4 <br />