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DESCRIPTIVE TERMINOLOGY PARTICLE SIZE IDENTIFICATION Boulders over 3" Gravel Coarse 1 " 3" Medium Pine No 4 1/2" Send Coarse No. 4 - No 10 Medium No. 10 —No 40 Fine No. 40 — No. 100 Very Fine No. 100 — No. 200 Silt No. 200 - .005 min Clay lea than .005 min RELATIVE DENSITY OF COHESION LESS SOILS very louse 0 4 BPF loose 5 10 BPF medium dense 1 1 30 BPF dense 31 50 BPF very dense 50+ BPF RELATIVE PROPORTIONS OF GRAVEL SOIL INTRUSIONS THICKNESS lense 0 -- 1181• seam 118" 1 •• layer ill — 12" varved alternating seams or lenses of clays and silts in lake deposit MOISTURE CONTENT Dry Moist Wet Waterbearing CONSIs . "'+ICY OF COHESIVE SOILS less than 5% under optimum moisture over optimum moisture saturated sand very soft 0 1 BPF soft 2 3 BPF rather sots 4 5 BPF medium 6 B BPF rather stiff g 12 BPF stiff 13 16 BPF very sntf 17 30 BPF hard 3D+ BPF RELATIVE PROPORTIONS with a few 0 10% with some 11 20% with over 20% ORGANIC CONTENT 0 -- 5% non to sirghtly organic 6 10% slightly organic 11 25% organic 26 65% muck 65 t petit PLASTICITY OF SOILS WITH LESS THAN 20r% CLAY non 1.»sot. gritty, cannot thread slightly plastic rough to smooth, hard to thread plast" smooth to waxy. easy to thread LABORATORY TESTS a trace 0 5% DD Dry Density, pcf OC Organic Content,' a little 6 15% WD Wet Density, pcf S Percent of Saturation. 46 souse 16 W* MC Natural Moisture Content, % SG Specific Gravity and 11 110% LL Liquid Limit, % C Cohesion PL Plastic Limit, % 0 Angle of Internal Friction PI Plasticity Index, % qu Unconfined Compressive Strength DRILLING NOTES: Standard penetration test hnrrngs were advanced by 2':" or 3%." 1 D hollow -stem augers unless nulvd other wise Jetting water was used to Plea., out auger prior to sampling only whet;, ndicated or, logs Standard penetration test borings are designated by the prefix ' ST" (Split Tube). Power auger borings were advanced by 4 nr 6' diameter. cintinuous-flite, solid stem augers Snit classification and strata depths are inferred from drsturtW.tt samples augered to the surface and are therefore somewha• approximate Power auger bor,nys are designated by the prefix "B" Hand probtngs were advanced manually with a 1';" diameter probe and are limited to the depth from which the probe can be manually withdrawn llawi probings are indicated by the prefix "H" CLASSIFICATION ClassihutUrn tin logs is made by inspection in accordance with L . Unified Sods Classiftcat on System Isere atiaehed chart? usmil v,%ijal manual procedures unless noted otherwise. GROUND WATER. Ckae,vations ware made at the i mes indicated Porosity of sal strata, seasonal weather conditions, site topography. etc . tray cause changes in the water levels indicated on the logs SAMPLING An sample are taken with the standard 2" O D split tube sampler. except where noted TW indit aces thin wall undisturbed sample BPF Numbers indicate blows per foot recorded in standard penetration rest, also known as N valor The artrpla is set 6" into umbs ur ad sal below the hollow stem weer Driving resistances tie then counted for second and thud 4inererrants and added to gat BPF Where they fiffer sagn+f itSMly they are reported the following form - 2/12 lot the second and third 6" increments •euxecit wiv W" WH indicates that sampler penetrated soil undw weight of hammer anti -refs alone, driving not reu.,ro NOTE All tests run in accerdenow with applii epla ASTM starhdwds 910un ENGINfERINO TESTING