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Kennedy/Jenks Consultants <br /> Appendix C: Standard Operating Guideline <br /> Borehole Logging <br /> C.1 Introduction <br /> This guideline describes procedures followed by Kennedy/Jenks Consultants (Kennedy/Jenks) <br /> personnel for classifying soils and for preparing borehole logs and other types of soil reports. It <br /> assists in obtaining uniform descriptions of soils encountered during borehole programs and <br /> enhances consistency among Kennedy/Jenks 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, and in <br /> accordance with general practices followed by the profession, the Unified Soil Classification System <br /> (USCS) (ASTM D 2488-90) is used to identify, classify, and describe soils. <br /> C.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 /> C.3 Equipment <br /> • Boring log forms (1st and 2nd sheet, Kennedy/Jenks Form F-40.1, 40.2) <br /> Daily inspection report forms (Kennedy/Jenks Forms 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 /> • Engineer's scale <br /> Previous project reports and boring logs <br /> • Pocket knife or putty knife <br /> • Hand lens <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 /> C.4 Typical Procedures <br /> C.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 /> Work Plan for Improved Detection Monitoring Program Appendix C <br /> Musco Family Olive Company, Tracy, California Page C-1 <br /> ,V 7ym ple>W4,WIO N20f04.00 muacoolNd09aepakl0tle_27 ftp',,m,.M.,ptlx,, <br />