2202 100TH ST SW Geotech Report 2022-10-25

e 00° Well-graded gravel and Terms Describing Relative Density and Consistency CCI SN o°o'(GW gravel with sand, little to Density SPT(2)blows/foot m ivy 00 no fines Very Loose 0 to 4 Coarse- , o0000o Loose 4to10 Poorly graded gravel Grained Soils Medium Dense 10 to 30 - o�n `"°o°0° GP andgravel with sand, Test Symbols o ° v °°°°° Dense 30 to 50 ° ° little to no fines G=Grain Size o d °°°°° Very Dense >50 N o z °°°°° M=Moisture Content z° o a 2 01,0't Consistency SPT(2)blows/foot A=Atterberg Limits Siltygravel and Silt c•a J O C y Very Soft 0 to 2 C=Chemical ° wc c°c°( GM gravel with sand Fine-ms •( a ° 0°0 Grained Soils Soft 2 to 4 DD= Dry Density N LL3 ca o Medium Stiff 4 to 8 K=Permeability I i)f N r ( Stiff 8 to 15 .1. Clayey gravel and Very Stiff 15 to 30 co ^�re- , GC clayey gravel with sand Hard >30 0 ," Component Definitions o Well-graded sand and Descriptive Term Size Range and Sieve Number •� SW sand with gravel,little Boulders Larger than 12" 02 8- 2 to no fines Cobbles 3"to 12" Gravel 3"to No.4(4.75 mm) m .::.••- Poorly-graded sand 'o o � ��. : Coarse Gravel 3"to 3/4" cn U .: - SP and sand with gravel, Fine Gravel 3/4"to No.4(4.75 mm) a =o little to no fines d Sand No.4(4.75 mm)to No.200(0.075 mm) °°z Coarse Sand No.4(4.75 mm)to No.10(2.00 mm) Siltysand and ti � y� � SM Medium Sand No.10(2.00 mm)to No.40(0.425 mm) silty sand with Fine Sand No.40(0.425 mm)to No.200(0.075 mm) o o gravel Silt and Clay Smaller than No.200(0.075 mm) • ") o,- :. Cl) Sc Clayey sand and (3)Estimated Percentage Moisture Content cn ^� clayey sand with gravel Component Percentage by Weight Dry-Absence of moisture, dusty,dry to the touch Trace <5 Silt,sandy silt,gravelly silt, Slightly Moist-Perceptible moisture y o ML silt with sand or gravel Some 5 to<12 a') Moist-Damp but no visible in T a Modifier 12 to<30 water 8ca N Clay of low to medium (silty,sandy,gravelly) Very Moist-Water visible but o a CL,,J lean clay plasticity;silty,sandy,or not free draining Very modifier 30 to<50 Wet-Visible free water,usually cA co z 1-2gravelly clay,—J £ (silty,sandy,gravelly) from below water table Cl)r • 3 = Organic clay or silt of low Symbols E 6 _ - OL plasticity Blows/6"or y __ Sampler portion of 6" s<Cement grout o — — Type \ surface seal Elastic silt,clayey silt,silt / Sampler Type with micaceous or p YP 2.0"OD ." Bentonite / ,5 Description 4 o �, MH Split-Spoon c i seal is) o diatomaceous fine sand or Sampler H3.0"OD Split-Spoon Sampler : Filter pack withcog silt C: i (SPT) ' 3.25"OD Split-Spoon Ring Sampler (4) ;. :;:blank casing rp U o j Clay of high plasticity, Q_; .:section a-°i c� CH sandy or gravelly clay,fat Bulk sample 3.0"OD Thin-Wall Tube Sampler =•••;Screened casing clay with sand or gravel 0 (including Shelby tube) • or Hfilter p 7.1 / GrabSample _ with filter pack f? .--0 / Sa pe V E c N Q i�02 Organic clay or silt of Q Portion not recovered •• End cap o• u- -' cii;• OH medium to high (1) (4) o ;�i %; Percentage by dry weight Depth of ground water o• ��i; plasticity (2) (SPT)Standard Penetration Test 5 ".C (ASTM D 1586) t ATD=At time of drilling a >,0 °, Peat, muck and other (3) Static water level(date) L In General Accordance with rn a,'o PT highly organic soils Standard Practice for Description (5) Combined USCS symbols used for =per and Identification of Soils(ASTM D-2488) fines between 5%and 12% 0 Classifications of soils in this report are based on visual field and/or laboratory observations,which include density/consistency,moisture condition,grain size,and 5 plasticity estimates and should not be construed to imply field or laboratory testing unless presented herein.Visual-manual and/or laboratory classification 3 methods of ASTM D-2487 and D-2488 were used as an identification guide for the Unified Soil Classification System. . Y associatedoi i 0 ! earth sciences EXPLORATION LOG KEY FIGURE Al x incorporated