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r, <br /> WELL LOG <br /> KEY TO ABBREVIATIONS <br /> • Drilling MethQg Gravel Peck <br /> HSA- Hollow stem auger CA- Coarse aquanum 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 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 r Sample Preserved for <br /> 1 Laboratory Testing <br /> Sym4vls <br /> sample <br /> - First encountered ground water recover <br /> sampled Y <br /> - Static ground water level interval` <br /> Density (Blow F 1 Mod Spmpler) <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 Stuff <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 /> -- <br /> 120 _._ ————————————— -.__.._--- ___.— Boulders ------- <br /> -- <br /> 30 -- 30 in ----------------------- Cobbles—____-- ---- <br /> -- 0 19 — _- No 4 —— - -- — ——-- — _ - --- — -- Gravels --- _ — - <br /> 0 08 --- No 10 —coarse -- <br /> ---� No 40 ----- ---- — medium —� -_- - -- Sand4 - — <br /> • ---_ — tine ---- — -- -- <br /> --- No 200 ------------- --.�--_ .�—�— <br /> Silt <br /> Clay Srze <br /> PACIFIC ENVIRONMENTAL GROUP INC <br />