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1 <br /> I <br /> The following procedures will be employed when collecting and handling soil samples: <br /> 1. Prior to sampling, the split-spoon sampler (or equivalent) and sample liners will be thoroughly <br /> iwashed with a solution of Alconox or non-phosphate TSP and rinsed with potable water. <br /> 2. The samples will be retained in the sample liners with the ends covered with aluminum foil or <br /> i Teflon'v sheets and plastics end caps. <br /> J 3. Each sample will be labeled using waterproof ink with the job name,job number, boring <br /> 1 number, sample depth, date collected, and the initials of the person who collected the sample. <br /> 4. A description of the soil sample will be entered on a boring log form by the field geologist. <br /> This description will include soil classification (ASTM D-2487-83), color, moisture content <br /> and consistency(in relative terms), and estimated degree of hydrocarbon content as measured <br /> using a photoionization detection(PID) meter and/or Hanby TPH field kits. <br /> 5. Immediately after sample collection and labeling, the samples will be sealed in a plastic bag <br /> and placed in a sturdy ice chest. The temperature in the ice chest will be maintained at or <br /> below 4°C. <br /> z 6. When the ice chest is full (or contains all the samples which will be stored in it), a completed <br /> chain-of-custody form will be inserted and the chest will be closed and sealed. <br /> — Gas condensate contains BTEX compounds, as well as other aliphatic and paraffinic hydrocarbons and is <br /> similar m composition to a gasoline/kerosene mixture (see the MIatenal Safety Data Sheet attached to the <br /> y Health and Safety Plan in Appendix A). As a result, the soil samples submitted to the analytical laboratory <br /> JI will be analyzed for total petroleum hydrocarbons as gasoline (TPH-G) by EPA Method 5030/8015; total <br /> extractable petroleum hydrocarbons (TEPH; includes TPH in the kerosene, diesel and motor oil ranges) by <br /> EPA Method 3550/8015; and BTEX by EPA Method 8020. <br /> MONITORING WELL INSTALLATION <br /> As previously stated, five groundwater monitoring wells will be drilled and installed at the locations shown <br /> on Figure 5. The purpose of these wells is to monitor groundwater quality and define the lateral limits of <br /> groundwater contamination. The following procedures will be followed during monitoring well installation. <br /> Borehole Advancement <br /> The boreholes will be drilled to a depth of 10 to 15 feet below the top of the aquifer (-20-25 feet below <br /> ground surface) provided a continuous aquitard is not encountered. If an aquitard (i.e., a stiff clay layer) is <br /> cca/03/10/95 09:38 AM(0688brpt.doc/ntw12) 44 <br />