2930 MAPLE ST KAISER PERMANENTE Geotech Report 2025-03-07

GENERAL NOTES lrerracon DESCRIPTION OF SYMBOLS AND ABBREVIATIONS Kaiser Everett Medical Center Everett,WA GeoReport June 28,2019 Terracon Project No.81195071 SAMPLING WATER LEVEL FIELD TESTS N Standard Penetration Test 7 Water Initially Resistance(Blows/Ft.) Encountered S RSpStandard 7 Water Level After a (HP) Hand Penetrometer Penetration ecified Period of Time Test V Water Level After (T) Torvane a Specified Period of Time Water levels indicated on the soil boring logs are (DCP) Dynamic Cone Penetrometer the levels measured in the borehole at the times indicated. Groundwater level variations will occur UC Unconfined Compressive over time. In low permeability soils,accurate Strength determination of groundwater levels is not possible with short term water level (PID) Photo-Ionization Detector observations. (OVA) Organic Vapor Analyzer 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. STRENGTH TERMS 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 visual-manual procedures or standard penetration resistance Descriptive Term Standard Penetration or Descriptive Term Unconfined Compressive Strength Standard Penetration or (Density) N-Value (Consistency) Qu,(tsf) N-Value Blows/Ft. Blows/Ft. Very Loose 0-3 Very Soft less than 0.25 0-1 Loose 4-9 Soft 0.25 to 0.50 2-4 Medium Dense 10-29 Medium Stiff 0.50 to 1.00 4-8 Dense 30-50 Stiff 1.00 to 2.00 8-15 Very Dense >50 Very Stiff 2.00 to 4.00 15-30 Hard >4.00 >30 RELATIVE PROPORTIONS OF SAND AND GRAVEL RELATIVE PROPORTIONS OF FINES Descriptive Term(s)of Percent of Descriptive Term(s)of Percent of other constituents Dry Weight other constituents Dry Weight Trace <15 Trace <5 With 15-29 With 5-12 Modifier >30 Modifier >12 GRAIN SIZE TERMINOLOG PLASTICITY DESCRIPTION Major Component of Sample Particle Siz Plasticity Index Boulders Over 12 in.(300 mm) Non-plastic 0 Cobbles 12 in.to 3 in.(300mm to 75mm) Low 1-10 Gravel 3 in.to#4 sieve(75mm to 4.75 mm) Medium 11-30 Sand #4 to#200 sieve(4.75mm to 0.075mm High >30 Silt or Clay Passing#200 sieve(0.075mm)