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"Ai WELL LOG <br /> KEY TO ABBREVIATIONS <br /> Drilling_Method Gravel Pagk <br /> HSA- Hollow stem auger CA-Coarse aquarium sand <br /> CFA- Continous flight auger <br /> Air- Reverse air circulation <br /> Sampling Method <br /> Cal Mod - California modified split-spoon sampler(2" inner diameter) driven 18"by a <br /> 140-pound hammer having a 30"drop Where penetration resistance is <br /> designated"P", sampler was instead pushed by dnll ng <br /> Disturbed - Sample taken from drill-return materials as they surfaced <br /> Shelby -Shelby Tube thin-walled sampler(3" diameter),where sampler is pushed by dnil-ng <br /> Moisture Content Sortlna Plasticity H-NU (ppml <br /> Dry -Dry PS - Poorly sorted L -Low ND -No detection <br /> Dp -Damp MS - Moderately sorted M- Moderate <br /> Mst - Moist WS -Well sorted H -High <br /> Wt -Wet. <br /> Sat -Saturated Sample Preserved for <br /> Laboratory Testing <br /> Bymbais <br /> sample <br /> V - First encountered ground water sampled recovery <br /> V. -Static ground water level interval <br /> Density JBI w F l MQq Sampler) <br /> Sands and gravels Silts and Clays <br /> 0-5 -Very Loose 0-2 -Very Soft <br /> 5-13 -Loose 2-4 -Soft <br /> 13-38 -Medium dense 4-9 -Fim <br /> 38-63 - Dense 9-17 -Stiff <br /> over 63 -Very dense 17-37 -Very Strff <br /> 37-72 -Hard <br /> over 72 -Very Hard <br /> GRAIN - SIZE SCALE <br /> GRADE LIMITS GRADE NAME <br /> U S. Standard <br /> inch sieve size <br /> 12 0 ----- -- Boulders ------` <br /> 3 0 -- 3 0 in ------- ----T - ----Cobbles-----�`— <br /> Gravels ' <br /> -- 0 19 -- No 4 -------------------- r— _ _— ----- <br /> -- 0 08 --- No 10 coarse <br /> No 40 medium Sand <br /> ------- No 200 fine -- __----_ --- -----^� <br /> Silt <br /> Clay Size <br /> PACIFIC ENVIRONMENTAL GROUP, INC <br />