8417 EVERGREEN WAY Geotech Report 2022-10-25

GENERAL NOTES DESCRIPTION OF SYMBOLS AND ABBREVIATIONS 7 v Water Initially Encountered (HP) Hand Penetrometer Water Level After a Auger Split Spoon Specified Period of Time (T) Torvane 0 I [I] J Water Level After EliCOW a Specified Period of Time H (b/f) Standard Penetration N Test(blows per foot) Z Shelby Tube Macro Core W ..-I _ J Water levels indicated on the soil boring a (PID) Photo-Ionization Detector W logs are the levels measured in the 0 _ borehole at the times indicated. UJ J U) Ring Sampler Rock Core Q Groundwater level variations will occur (OVA) Organic Vapor Analyzer � over time. In low permeability soils, — accurate determination of groundwater L levels is not possible with short term water level observations. Grab Sample No Recovery DESCRIPTIVE SOIL CLASSIFICATION Soil classification is based on the Unified Soil Classification System.Coarse Grained Soils have more than 50%of their dry weight retained on a#200 sieve;their principal descriptors are:boulders, cobbles,gravel or sand. Fine Grained Soils have less than 50%of their dry weight retained on a#200 sieve;they are principally described as clays if they are plastic,and silts if they are slightly plastic or non-plastic. Major constituents may be added as modifiers and minor constituents may be added according to the relative proportions based on grain size. In addition to gradation,coarse-grained soils are defined on the basis of their in-place relative density and fine-grained soils on the basis of their consistency. LOCATION AND ELEVATION NOTES Unless otherwise noted, Latitude and Longitude are approximately determined using a hand-held GPS device.The accuracy of such devices is variable.Surface elevation data annotated with+/-indicates that no actual topographical survey was conducted to confirm the surface elevation. Instead,the surface elevation was approximately determined from topographic maps of the area. RELATIVE DENSITY OF COARSE-GRAINED SOILS CONSISTENCY OF FINE-GRAINED SOILS (More than 50%retained on No.200 sieve.) (50%or more passing the No.200 sieve.) Density determined by Standard Penetration Resistance Consistency determined by laboratory shear strength testing,field Includes gravels,sands and silts. visual-manual procedures or standard penetration resistance fn Descriptive Term Standard Penetration or Ring Sampler Descriptive Term Unconfined Compressive Standard Penetration or Ring Sampler w (Density) N-Value Blows/Ft. (Consistency) Strength,Qu,tsf N-Value Blows/Ft. W Blows/Ft. Blows/Ft. I— Very Loose 0-3 0-6 Very Soft less than 0.25 0-1 <3 2 F— Loose 4-9 7-18 Soft 0.25 to 0.50 2-4 3-4 Z W Medium DenseCe 10-29 19-58 Medium-Stiff 0.50 to 1.00 4-8 5-9 I— y Dense 30-50 59-98 Stiff 1.00 to 2.00 8-15 10-18 Very Dense >50 >99 Very Stiff 2.00 to 4.00 15-30 19-42 Hard >4.00 >30 >42 RELATIVE PROPORTIONS OF SAND AND GRAVEL GRAIN SIZE TERMINOLOGY Descriptive Term(sl Percent of Major Component Particle Size of other constituents Dry Weight of Sample Trace <15 Boulders Over 12 in.(300 mm) With 15-29 Cobbles 12 in.to 3 in.(300mm to 75mm) Modifier >30 Gravel 3 in.to#4 sieve(75mm to 4.75 mm) Sand #4 to#200 sieve(4.75mm to 0.075mm Silt or Clay Passing#200 sieve(0.075mm) RELATIVE PROPORTIONS OF FINES PLASTICITY DESCRIPTION Descriptive Term(sl Percent of Term Plasticity Index of other constituents Div Weight Non-plastic 0 Trace <5 Low 1-10 With 5-12 Medium 11-30 Modifier >12 High >30 lierracon Exhibit C-1