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r r-� KEY TO EXPLORATORY MNG LOGS SOIL SAMPLE LOCATION FIRST ENCOUNTERD NON-CONFINED OROUND WATER LVEL PENEMATION: Sample drive hammer weight-140 pourer falling 30 inches. r, Blows required to drive the sampler 1 foot are Irdicaled on the logs CONTAMINATION: Soil samples and cuttings were screened,4th a Pholovac `l (PID)detector. Soli arxd water samples were collected in mason jars, agitated, and these screaled using ft "TIP" detecior. Cuttings were screer _in situ as they were brought to surface by the augers. Soil samples collected for certified laboratory analysis were screened prior to preservat;on ,.t SOIL CLASSIFICATION CHART ASTM G 2487 1 - T Sat Classification Criteria for Assigning Group Symbols and Group Names Using Laboratory Tests^ Group i - Symbl Group Name° ! CoarwGrained Sats Gravels Clean Gravels Cu z 4 and 1 s Ccs 3e GIN gravelf, More than 50%retained on No. More than 50%of coarse Less Shan 5%finest - Cu<4 andjor 1>Cc>3E GP Poorly gravel° 209 sisve traction retained on No.a y g_ .sieve Gravels with Fines More Fines classify as ML or MH GM -Silly graveE�•�"• -than 12 X lnnasc Fines Cassiy as CL or CH GC Clayey gravel"Am Sands Clean Sands Cu a 6 and 1 s Cc 5 3f SW Well-gratlod sand j 50%or more of coarse Less Irian 5%fines° Cu<6 andlor 1>Cc>3 e SP Poorly gratlerl sir tlr I fraction passes No.4 sieve _ Sands with Fines Fines classiy as ML or MH SM Silly sand°"•' - - Voce than 12%lines° Files classify as CL or GH SC Clayey sandd.+r.r - .- Fine-Grained Soils- Silts and Crays Inorganic PI>7 and puts on or above-A-foe' CL Lean clay'- 5D%el more passes the No. Liquid limit less than 50 PI<4 or plots tletow•A'Ime' ML 290 sieve - organic Liquid Irmit-ever,tlnu4 c 0.75 pL Or anic da •t•y N - - _ Liquid imit--hat Lir�etl Or an sirts•t•"r•O - Sats and Clays inorganic P!plats on M above'A'tine CH Fat nlayKt•v I Gould limit 50 or mere Pi plots below'A'line_ Ms Elastic silt^t� organic liquid lith t-oven deed<0.75 Orf Organic day"•`•"'•, !• _ __ Liqu,C limit^not dried ,^ O.ganLLQ s�lt"•t.iv.o' f, Highly organEz soils - Prsmanly organic matter,Car*in W01,and organic odor PT Peat A Based or,the material passing the 3"in,(75-mm) a a- - (p,rs "'If sal contains a 30% plus No. 200, pre- -- Cur-OaorCi — - - - - -- ---aWva:---- -- - --- - ---- -- Orin 0 - - ------ dor5na+dlygreva.-add-gravelly to group name "- . a If field Sample contained DOW$or boulders.OF - r If sot contains a 15%sarhl,add'with send-to - ~PI t 4 BW plots on or above'A'line. - `4. both. Adtl 'with CboblES of btli:"oars, Or both' to group name. - °PI<4 or plats below'A'line. ` gip°ame•: °if fines clessity as CL-ML. use duet symbol °PJ plots on or above'A'rine. °Gravels with 5 46.12% fines require dual GC-GV,or SC-SM, - Pf plots Wow'A'line, symbols, r lines are Organic,add'with organic!roes'to GI:i-GM wall-Vaded gravel with silt group name- GW-GC well-graded gravel with Nay r ifsoil Contains z 15%gravel,add-with gravel' �J GP.GM poorly graded gravel with silt to group name. GO-GC poorly graded grave!with day v If Atrerberg limits piol in halened area.sol is a °Sands with 5 to 12% fines require dual CL.ML,silly clay. - - symbols: 'if sol!contains IS to 29% plus No. 200• add SWSM weftVaded Sand with silt _ •with sand' or -wan gravCt; whrdhever rs pre• - - - SW-SC well-graded sand with day - dominant. _ SP-SV poorly graded sand with silt t 11 sal Contains a 30 3 plus No. 200, Drs. SP.SC poorly graded sand with Clay doming,ltiy sand.add-sandy'to groin,name.