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Appendix B: Standard Operating Guideline - <br />Borehole Logging <br />B.1 Introduction <br />This guideline describes procedures followed by Kennedy/Jenks Consultants personnel for <br />classifying soils and for preparing borehole logs and other types of soil reports. It assists in <br />obtaining uniform descriptions of soils encountered during borehole programs and enhances <br />consistency among Kennedy/Jenks Consultants personnel and among projects. <br />Borehole logging is the systematic observation and recording of geologic and hydrogeologic <br />information from subsurface borings and excavations. As adopted by Kennedy/Jenks Consultants, <br />and in accordance with general practices followed by the profession, the Unified Soil Classification <br />System (USCS) (ASTM D 2488-90) is used to identify, classify, and describe soils. <br />B.2 Recommended Minimum Requirements <br />Soil classification and borehole logging should be conducted by a geologist or another professional <br />trained in the classification of soils. <br />B.3 Equipment <br />Boring log forms (1st and 2nd sheet, K/J Form F-40.1, 40.2) <br />Daily inspection report forms (K/J Form F-3, F-4) <br />Chain-of-custody forms/request for analysis forms <br />USCS (ASTM D 2488-90) table and classification chart <br />Soil color chart (i.e., Munsell) <br />American Geological Institute (AGI) data sheets <br />Graph paper <br />Engineer's scale <br />Previous project reports and boring logs <br />putty knife <br />Supply of clean water <br />Gloves (latex, nitrile as described in project health & safety plan) <br />Personal protective clothing and equipment, as described in the project health & safety plan <br />Sample containers (brass, steel or aluminum liners, plastic or glass jars) <br />Decontamination equipment and supplies <br />Aluminum foil, Teflon sheets, and paper towels <br />B.4 Typical Procedures <br />B.4.1 Soil Classification <br />Soils are typically logged in conjunction with advancing boreholes and sampling subsurface soils. <br />Although the guideline focuses on classifying soil samples obtained from boreholes, this particular <br />Additional Soil and Groundwater Sample Work Plan, Page 1 <br />BNSF Mormon Yard, Stockton, California <br />11nwybnsf2\bnsfwpIwp \ 201811899020 00_mormon_yardtwork_plan_Khappb_sogboreholelogging acpt chng_wp cloc