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i <br /> WELL LOG <br /> KEY TO ABBREVIATIONS <br /> Drilling Method Gravel Pack <br /> HSA- Hollow stern auger CA- Coarse aquanurn sand <br /> CFA- Continous flight auger <br /> Air- Reverse air circulation <br /> Sampiing 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-retum materials as they surfaced <br /> Shelby -Shelby Tube thin-walled sampler (3" diameter),where sampler is pushed by dnll-ng <br /> Moisture Content Sorting 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 /> I Laboratory Testing <br /> T <br /> Symbols <br /> a <br /> - Fust encountered round water sample h <br /> g sampled recovery <br /> - Static ground water level interval an <br /> Density IBlows/Foot Ca! Mod Samplers <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 -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 /> US Standard <br /> inch sieve size <br /> --- Boulders <br /> -- 3 0 -- 30 in ------ _ �� ---� — _ --Cobbles <br /> 0 19 -- No 4 ----- Gravels <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 />