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1K Kennedy Jenks Appendix C: Standard Operating Guideline - Borehole Logging CA Introduction This Standard Operating Guideline (SOG) provides the procedures typically followed by Kennedy/Jenks Consultants, Inc. (Kennedy Jenks) personnel for classifying soils and preparing boring logs and other types of soil reports. The purpose of this SOG is to facilitate the acquisition of uniform descriptions of soils encountered during borehole programs and to promote consistency in the logging practices used by Kennedy Jenks personnel. This SOG provides guidance on procedures that are generally consistent with standard practices used to classify soils. Deviations from, and additions to, the procedures described herein may be appropriate based on project- specific objectives, site-specific conditions, and/or regulatory requirements. The user of this SOG should modify the sampling procedures used, as appropriate, to conform to the project-specific requirements and then document such deviations from this SOG in the project-specific documentation of subsurface exploration activities. Borehole logging is the systematic observation and recording of geologic and hydrogeologic information from subsurface borings and excavations. The Unified Soil Classification System (USCS) (ASTM D2487-00) is used to identify, classify, and describe soils principally for engineering purposes, and is based on laboratory tests. For field applications, ASTM D2488-06 (Visual-Manual Procedure) is used as the general guide adopted under this SOG. Both ASTM D2487 and ASTM D2488 utilize the same group names and symbols. However, soil reports should state that boring logs are not formal USCS laboratory determinations, but are based on the visual-manual procedures described in ASTM D2488. This SOG contains the following sections: • Field Equipment/Materials • Typical Procedures - Soil Classification - Classification of Coarse-Grained Soil - Classification of Fine-Grained Soil including Organic Soils • Other Logging Parameters • References. C.2 Field Equipment/Materials Material/equipment typically required for classifying soils and preparing boring logs may include: • Pens, pencils, waterproof pens, and field logbook or other appropriate field forms (e.g., boring log forms), water-tight field case. • Daily inspection report forms. Monitoring Well Installation Work Plan, B-1 The Wine Group, Franzia Winery, Ripon, CA P.\1 S-Proj\2003-post archive\030120.XY_GW Mon Well Support\09-Reports\piecesWPP_C SOG Borehole Log.doc