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SOP No. 240 Page 3 of 3 1. Ensure that all drilling sites are safe by carrying out appropriate subsurface utility clearance. 2. Don the appropriate PPE and begin air monitoring as specified in the HASP. 3. Set-up an equipment cleaning station, and decontaminate reusable equipment as described in the FSP. Use new, clean, disposable materials when decontamination is not appropriate (e.g., disposable gloves, sampling tubes, and dedicated drive points). 4. Assemble the dual probe (outer steel casing and inner Lexan® tube) sampling apparatus or other DPT tool. 5. Drive the sampling tools to the appropriate sampling zone. 6. When the desired depth for the collection of a subsurface soil sample is reached, retrieve the inner Lexan® tube and segregate the soil sample, as needed. If an alternative DPT tool is used, push to the appropriate depth and sample following the equipment operations instructions. 7. Note the soil type, color, odor, amount of recovery, and screen the soil core for volatile organic compound (VOC) analysis using the photo-ionization detector (PID). All field data shall be recorded in the soil sample sheet (see SOP No. 200.) Sample soils for laboratory analysis per requirements of the FSP and instruction in the SOP No. 200 for Soil Sampling. In some cases, depending upon FSP requirements, PID field screening will be used to select intervals for sampling. 8. Decontaminate non-disposable equipment or tools that may have come into contact with subsurface soil (refer to FSP or QAPP.) 9. Discard all disposable equipment used during sampling activities in a designated location. 10. Abandon the borehole with bentonite pellets; hydration is not necessary. 11. If the DPT is used for drilling more than 4 ft, documentation will switch to a drilling log(see SOP No. 230 for rock and soil borings).