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Kennedy/Jenks Consukants SOG 2: Standard Operating Guideline Borehole Logging 2.1 Introduction This guideline describes procedures followed by Kennedy/Jenks Consultants personnel for classifying soils and for preparing borehole logs and other types of soil reports. It assists in obtaining uniform descriptions of soils encountered during borehole programs and enhances consistency among Kennedy/Jenks Consultants personnel and among projects. Borehole logging is the systematic observation and recording of geologic and hydrogeologic information from subsurface borings and excavations. As adopted by Kennedy/Jenks Consultants, and in accordance with general practices followed by the profession, the Unified Soil Classification System (USCS) (ASTM D 2488-90) is used to identify, classify, and describe soils. 2.2 Recommended Minimum Requirements Soil classification and borehole logging should be conducted by a geologist or another professional trained in the classification of soils. 2.3 Equipment • Boring log forms (1st and 2nd sheet, K/J Form F-40.1, 40.2) • Daily inspection report forms (K/J Form F-3, F-4) • Chain-of-custody forms/request for analysis forms • USCS (ASTM D 2488-90)table and classification chart • Soil color chart (i.e., Munsell) • American Geological Institute (AGI) data sheets • Graph paper • Engineer's scale • Previous project reports and boring logs • Pocket knife or putty knife • Hand lens • Supply of clean water • Gloves (latex, nitrile as described in project health & safety plan) • Personal protective clothing and equipment, as described in the project health & safety plan • Sample containers (brass, steel or aluminum liners, plastic or glass jars) • Decontamination equipment and supplies • Aluminum foil, Teflon sheets, and paper towels Monitoring Well Replacement Work Plan, SOG 2 Sutter Home Winery, Lodi, California Page 1 of 5 g:Ysga WminWb OB'A88 5.15vtlerbom O' epmis installw\appb_s Qbombobb¢rev_mmE