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RELATNE pENS17Y / C(3NSlSTENCY <br />5PT Approx. Relative SPF Approx. Undrained Shear <br />Density : N•values � Density(%} � Consistency : N•values . Strength(psf} <br />Very Loose : �4 <15 : Very Soft <2 <br />loose 4 to 10 15 • 35 � Soft 2 fo 4 <br />Med. Oense : 10 to 30 : 35 • 65 � Med. St'rft 4 to 8 <br />Dense : 30 to 50 � 65 • 85 � St'rff S to 15 <br />Very Dense : >50 85 • 100 � Very Stiff 15 to 30 <br />� Hard >30 <br />UNIFIED SOIL CLASSIFICATION SYSTEM <br />�� <br />250•500 <br />500 • 1000 <br />�000-zoon <br />zaoo• aaao <br />>4Q00 <br />MAJOR DIVISIONS GROUP DESCRIPTIONS <br />� �' GW: WelMgradedOftAVEL <br />Gravel : GRAVEL{<5%tines) • .....:...................................................... <br />50°/ ormoreoFthecoarse i '�' GP : PoorlygradedGRAVEL <br />........................... o D ..:.............. <br />fraclionrMainedonthe�l4 ; �������������������������� <br />...... .. <br />sieve. Use dual symbols (eg, : e ' GM : Silty GRAVEL <br />GP-GM1 for 5% to 12% fi nes. : GRAVEI j>12 /o fines) � .....:............................... ��............... ..... <br />. GC : ClayeyGRAVEL <br />..................................... ........................... ................................................._...... <br />.... o ' <br />� '''''' SW; WelGgradedSAND <br />. .... <br />� :::;: <br />Sand : SAND{<5%fines) , � .................................................... <br />'�i�: SP : Poo • raded SAND <br />50% ormoreoithecoarse :.................................. G,, • .....�Y 3 <br />iradlon passing the q4 sieve. ; ...... . .... � . ........ ................. .... ... <br />Use dual symbols (eg. SP•SM) • �,• SM : Silty SAND <br />for5/tol2Yfines, � SAND(>12%fnes) ' .....:.................�.. ... . .. �............... <br />: SC ; Clayey SAND <br />� -� ..........................._..................... . ..................................................... <br />...... <br />ML : SILT <br />, ............................................................ <br />: Liquid Ltmit <50 CL : l.ean CiAY <br />- -- ............................................................ <br />SiR and Clay == OL : Organic SILT or CLAY <br />50%or more passfng #200 sIe•re � ....................... ... ..... — . ...:............................... ...................... . <br />MH : Elastic SIL7 <br />. ..................................... ....................... <br />: Liquid LimH > SO CH : Fat CLAY <br />. . .......................................................... <br />OH : Organic SILT or CLAY <br />...................................................................... ............................................................. <br />Highly Organic Soiis .�s PT : PEAT <br />NOt@S: �• Soil exploration I, s conlain ma(erial desaiptions based on visual observation and field tesls using a system <br />modified irom the Un�orm Soil Gassificatlon System (USCS�. Where necessary laboratory tesis have been <br />oonducted (as noted in the "Other Tests" column), unil desaiptions may indude a dassiflcation. Please refer to ihe <br />discussions in tlie report texl for a more completa descrip6on of the subsuriace condi�ons, <br />2. The graphic symbols given above are nol indusive of alf syrr�ds ihat may appear on the borehole Iogs. <br />Other symbots may be used where field observations indicaled mixed soil consbtuenls or dual consGtuenf materials. <br />DESCRIPTIONS OF SOIL STRUCTURES <br />Layered: Units of material disting�ished by color andlor <br />composition from mafena! units above and below <br />Laminated: Layers of soil rypicallyQAS to 1mn Ihidc, max.1 an <br />Lens: Layer of soil ihat pinches out lakerally <br />Interlayered: Altemating layers of differing soil material <br />Pxket: Erratic, disconbnuous depasit of limiled exfent <br />Homogeneous; Soil with uni(orm color and compasi6on lhroughout <br />Fissured: Breaksalong defined planes <br />Slickensided: Fracture planesUiat are polished or glossy <br />Blocky, Angular soil lumps ihat resist breakdown <br />Disrupted: Soil lhat is broken and mixed <br />Scattered: Less Ihan one per (oot <br />Numerous: More ihan one per foot <br />BCN: Ang1e hehveen bedding plane and a plane <br />normal to core axis <br />COMPONENT DEFINITIONS <br />COMPONENT SIZE / SIEVE RA(VGE COMPONENT SIZE / SIEVE RANGE <br />Boulder: � > 12 inches Sand <br />Cobbles; i 3 to 12 inches Coarse Sand: �#4 to #10 sieve {4.5 to 2.0 mm) <br />Gravel Medium Sand: :�i0 to #40 sieve (2.O to U.42 mm) <br />Coarse Gravel: : 3 to 314 inches Fine 5and: :#44 to #200 sieve (0.42 to 0.074 mm) <br />Fine GraveL• '• 314 inches to tW sieve 5ift � 0.074 to 0.902 mm <br />Clay <0.002mm <br />U—.. —_ ._ .— <br />n .������ <br />� <br />u <br />{ 1 M C O R P O R A T E D <br />� <br />j Phona: 206.262.a3T0 <br />Terms and Symbols for <br />Boring and Test Pit Logs <br />TEST SYMBOLS <br />(or In 5itu and Laboratory TesSs <br />listed in "Other 7ests" column. <br />A'FT Atterberg LimitTest <br />Comp Compaction Tests <br />Con Consolidation <br />DD DryDensity <br />DS Dired Shear <br />%F Fines Content <br />GS Grain Size <br />Perm Pemieabiliiy <br />PP PocketPenetrometer <br />R R-value <br />SG Specific Gravity <br />N Torvane <br />TXC Trianial Compression <br />UCC UnconfinedCompression <br />SYMBOLS <br />Sampleiln SAu test types and intervals <br />�2-inch OQ Split Spoon, SPT <br />(140-Ib. hammer, 30"drop) <br />e3.25-inch OD SpillSpoon <br />(300-Ib hammer, 30" drop) <br />�Non-slandard peneUation <br />tesl(see boring log for details) <br />, 7hin wall (Shelby) tube <br />� Grab <br />� Rock core <br />._��__ vane Shear <br />MONITORING WELL <br />SZ Groundwater Level at <br />time of drilling (ATD} <br />1 SlaficCxoundwaterlevel <br />Cement! Conaele Seal <br />Benlonile grout 1 seal <br />% Silica sand backfill <br />�•` Slotled Gp <br />�' Slough <br />Boflom ot Boring <br />MOISTURE CONTENT <br />Qry Dusty, dry to the touch <br />Moist Damp hut no visible waler <br />Wet Uslble free w�ater <br />Figure A-1 <br />