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WELL LOG <br /> KEY TO ABBREVIATIONS <br /> Drilling_ Mgthod Gravel Pack <br /> HSA- Hollow stem auger CA- Coarse aquarium sand <br /> CFA- Contrnous 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 drill 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 dnll-ng <br /> Moisture Conten; ortlng Plasticity H-NU m <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 /> Symbols <br /> sam�SJ - First encountered ground water recovery <br /> sampled � � <br /> Static ground water level interval ��� <br /> Density (Blows/Foot - Cal Mod Sampler) <br /> Sands and gravels Silts and Clays <br /> 0-5 -Very Loose 0-2 -Very Son <br /> 5- 13 -Loose 2-4 -Soft <br /> 13-38 - Medium dense 4-9 -Firm <br /> 38-63 - Dense 9-17 -Stiff <br /> over 63 -Very dense 17-37 -Very Stiff <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 /> -- <br /> 120 Boulders __ --- <br /> 3 0 -- 3 0 in ----------- – ---- Cobbles-------- <br /> 0 19 -- No 4 ------------------ Gravels <br /> -- 0 08 —_ No 10 _— _— ----coarse ---------------- --- -- <br /> -------- No 40 ------- medium ------- SandNo 200 --- ----- <br /> • fine — <br /> Sill <br /> Clay Size <br /> PACIFIC ENVIRONMENTAL GROUP, INC <br />