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0 • <br /> Kennedy/Jenks Consultants <br /> Appendix B: Standard Operating Guideline - <br /> Borehole Logging <br /> B.1 Introduction <br /> This Standard Operating Guideline (SOG) provides the procedures typically followed by <br /> Kennedy/Jenks Consultants personnel for classifying soils and preparing boring logs and other <br /> types of soil reports. The purpose of this SOG is to facilitate the acquisition of uniform descriptions <br /> of soils encountered during borehole programs and to promote consistency in the logging practices <br /> used by Kennedy/Jenks Consultants personnel. This SOG provides guidance on procedures that <br /> are generally consistent with standard practices used to classify soils. Deviations from, and <br /> additions to, the procedures described herein may be appropriate based on project-specific <br /> objectives, site-specific conditions, and/or regulatory requirements. The user of this SOG should <br /> modify the sampling procedures used, as appropriate, to conform to the project-specific <br /> requirements and then document such deviations from this SOG in the project-specific <br /> documentation of subsurface exploration activities. <br /> Borehole logging is the systematic observation and recording of geologic and hydrogeologic <br /> information from subsurface borings and excavations. The Unified Soil Classification System <br /> (USCS) (ASTM D2487-00) is used to identify, classify, and describe soils principally for engineering <br /> purposes, and is based on laboratory tests. <br /> For field applications, ASTM D2488-06 (Visual-Manual Procedure) is used as the general guide <br /> adopted under this SOG. <br /> Both ASTM D2487 and ASTM D2488 utilize the same group names and symbols. However, soil <br /> reports should state that boring logs are not formal USCS laboratory determinations, but are based <br /> on the visual-manual procedures described in ASTM D2488. <br /> This SOG contains the following sections: <br /> • Field Equipment/Materials <br /> • Typical Procedures <br /> - Soil Classification <br /> - Classification of Coarse-Grained Soil <br /> - Classification of Fine-Grained Soil including Organic Soils <br /> • Other Logging Parameters <br /> • Logging Refuse <br /> • References. <br /> B.2 Field Equipment/Materials <br /> Material/equipment typically required for classifying soils and preparing boring logs may include: <br /> • Pens, pencils, waterproof pens, and field logbook or other appropriate field forms <br /> (e.g., boring log forms), water-tight field case. <br /> • Daily inspection report forms <br /> Monitoring Well Installation Work Plan, B-1 <br /> Barrel Ten Quarter Circle Land Company, Escalon, California <br />