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Phase II Sampling and Analysis Plan SOP-2—Drilling and Sampling Port of Stockton-Rail and Bridge,Stockton,CA FN 4 Personnel Qualifications and Responsibilities Field activities will be directed by the FTL, an engineer/geologist with experience in the planned drilling activities; junior to mid-level geologists may also assist if necessary. Drilling will be conducted by a licensed driller and crew familiar with planned activities, the project-specific work plan, and HASP. The FTL will provide direction to field staff to ensure work is performed in accordance with the project documents (work plan, HASP, and SOPS). The field staff will carefully review the project documents, conduct the work as planned, seek direction from the FTL when questions or problems arise, and carefully complete field documentation. 5 Equipment and Supplies The required equipment and supplies will be identified in the project-specific work plan. Field activities should not proceed until the proper tools and equipment are available and in good working order. Usual equipment/supplies for a drilling project will include: a PID, tape measure, Munsell color chart, knife, PPE, field drill log forms, camera, sample containers, and worktable. Certain field documentation materials are prohibited when sampling for PFAS (see Section 5.1). Each team will have use of a truck/van during field activities. An initial safety check should be performed at the start of each shift to confirm the vehicle is in good working condition. The vehicle should then be checked daily for damage or required maintenance. 5. 1 Field Documentation Materials for PFAS Sampling Similar to PPE protocols, all field documentation materials used during PFAS sampling must not contain PFAS that could contaminate the sample. Table 5.1 summarizes the allowable and prohibited field documentation materials during PFAS sampling collection and handling. Table 5.1. Prohibited and Allowable Field Documentation Materials for PFAS Sampling Writing Surface . Waterproof field books • Non-waterproof and non-recycled loose • Plastic clipboards, binders, or paper spiral hard cover notebooks 0 Aluminum, polypropylene, or Masonite field • Papers with adhesives clipboards Writing Utensils . Regular or thick size permanent • Ballpoint pens and pencils markers 0 PFAS-free permanent markers Product Examples . Post-It Notes® • Rite-in-the-Rain®products • Ultra-fine point Sharpie® 2-3