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PAGE A-5 <br /> NOTES RELATED TO RECORDS OF TEST BORING AND <br /> GENERALIZED SUBSURFACE PROFILE <br /> <br /> <br />1. Groundwater level was encountered and recorded (if shown) following the completion of the soil test boring on the <br />date indicated. Fluctuations in groundwater levels are common; consult report text for a discussion. <br /> <br />2. The boring location was identified in the field by offsetting from existing reference marks and using a cloth tape <br />and survey wheel. <br /> <br />3. The borehole was backfilled to site grade following boring completion, and patched with asphalt cold patch mix <br />when pavement was encountered. <br /> <br />4. The Record of Test Boring represents our interpretation of field conditions based on engineering examination of <br />the soil samples. <br /> <br />5. The Record of Test Boring is subject to the limitations, conclusions and recommendations presented in the report <br />text. <br /> <br />6. "Field Test Data" shown on the Record of Test Boring indicated as 11/6 refers to the Standard Penetration Test <br />(SPT) and means 11 hammer blows drove the sampler 6 inches. SPT uses a 140-pound hammer falling 30 inches. <br /> <br />7. The N-value from the SPT is the sum of the hammer blows required to drive the sampler the second and third <br /> 6-inch increments. <br /> <br />8. The soil/rock strata interfaces shown on the Record of Test Boring are approximate and may vary from those <br />shown. The soil/rock conditions shown on the Record of Test Boring refer to conditions at the specific location <br />tested; soil/rock conditions may vary between test locations. <br /> <br />9. Relative density for sands/gravels and consistency for silts/clays and limestone are described as follows: <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />10. Grain size descriptions are as follows: <br />NAME SIZE LIMITS <br />Boulder 12 inches or more <br />Cobbles 3 to 12 inches <br />Coarse Gravel 3/4 to 3 inches <br />Fine Gravel No. 4 sieve to 3/4 inch <br />Coarse Sand No. 10 to No. 4 sieve <br />Medium Sand No. 40 to No. 10 sieve <br />Fine Sand No. 200 to No. 40 sieve <br />Fines Smaller than No. 200 sieve <br /> <br />11. Definitions related to adjectives used in soil/rock descriptions: <br />PROPORTION ADJECTIVE APPROXIMATE ROOT DIAMETER ADJECTIVE <br />About 5% with a trace Less than 1/32" Fine roots <br />About 5% to 12% with 1/32" to 1/4" Small roots <br />About ≥ 12% silty, sandy, etc. 1/4" top 1" Medium roots <br />Greater than 1" Large roots <br /> <br /> <br /> <br />SPT <br />Blows/ <br />Foot <br />Sands/Gravels <br />Relative <br />Density <br />SPT <br />Blows/Foot <br />Silt/Clay <br /> Relative <br />Consistency <br />SPT Blows/ <br />Foot <br />Limestone Relative <br /> Consistency <br />0-4 Very loose 0-2 Very Soft 0-20 Very Soft <br />5-10 Loose 3-4 Soft 21-30 Soft <br />11-30 Medium Dense 5-8 Medium Stiff 31-45 Medium Hard <br />31-50 Dense 9-15 Stiff 46-60 Moderately Hard <br />Over 50 Very Dense 16-30 Very Stiff 61-50/2" Hard <br />Over 30 Hard Over 50/2" Very Hard