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WELL LOG <br /> KEY TO ABBREVIATIONS <br /> �M. <br /> Driillncf Method G(lvel Pack <br /> HSA-Hallow stem auger CA-Coarse aquarium sand <br /> CFA-Continous flight auger <br /> Air-Raverse air circulation <br /> Sof <br /> Samollng Method <br /> Cal.Mod. -California modified spill-spoon sampler(2'inner diarmter)driven 18'by a <br /> 140-pound hammer having a 30'drop. Where penetration resistance is <br /> designated'P",sampler was instead pushed by ddil rig. <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 drill-rig. <br /> Moisture Content So_ rtlnaPlasticlt H-f+fU m <br /> Dry-Dry PS -Poorly sorted L -Low NO -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 /> Symbols <br /> sample <br /> -First encountered ground water sampled EN jr recovery <br /> interval " <br /> -Static ground water level <br /> # Density (Blow§/FipotI Mod Sampler) <br /> Sands and gravels Silts and Clays <br /> 0-5 -Very Loose 0-2.1 -Very Soft <br /> 5-13 -Loose 2-1 -4.3 -Soft <br /> 13.38 -Medium dense 4.3-8.6 -Firm <br /> 38-63 -Dense 8.6-17 -SW <br /> over 63 -Very dense 17-37 Very Stiff <br /> i <br /> 37-72 Hard <br /> over 72 -Very dense <br /> GRAIN- SIZE SCALE <br /> GRADE LIMITS GRADE-NAME <br /> U.S. Standard <br /> inch sieve size <br /> —_ 12.0 .boulders <br /> } --.----�.—...—.----.._..�..�--- Cobbles <br /> —_ 3.0 _ __.3.0 in. --------------_.. ------ <br /> Gravels <br /> 0.19 — No. 4 - -------- - ---- ———— <br /> E <br /> -- 0.08 --- No. 10 -----------coarse------------_._.—.----..--- <br /> medium Sand <br /> ---=- --- - ---------No,-40-- -- ------------------------ <br /> __ ___—__ fine — — <br /> _ <br /> - Na. 200 - —__----------- <br /> ^-- --_ ------_ ----- ------ Silt --------- <br /> Clay Size <br /> ! PACIFIC ENVIRONMENTAL GROUP, INC. <br />