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• <br /> Kennedy/Jenks Consultants <br /> SOG 2: Standard Operating Guideline <br /> Borehole Logging <br /> 2.1 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 /> 2.2 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 /> 2.3 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 /> • Engineer's scale <br /> • Previous project reports and boring logs <br /> • Pocket knife or 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 /> 2.4 Typical Procedures <br /> 2.4.1 Soil Classification <br /> Soils are typically logged in conjunction with advancing boreholes and sampling subsurface soils. <br /> P 9 <br /> Although the guideline focuses on classifying soil samples obtained from boreholes, this particular <br /> Monitoring Well Installation Work Plan SOG 2 <br /> Delicato Family Vineyards, Manteca, California Page 1 <br /> 9*'9r PWdm40b107107050f.00_d&%Ato108fpftM mt6ffW*0*b ndix A26aeh Iogdoc <br />