500 LAUREL DR 2016-01-01 MF Import

Geotechnical Engineering Study Page 39 00-2267 Three Story Addition - 500 Lauref Street, Everett Januery 31, 2001 APPENDIX A d0-2267 Field Exploration Program Our field exploration was performed December 7, 2000 and comprised one explorator,r boring. The boring extended to a maximum depth of approximately thirty-nine (39) feet below the existing site grade. The field explora!ion was performed using a truck mounted dril! provided an� operated by oursubcontractor, R 8� R Drilling of Puyallup. Hollow stem, continuous flight, augers +vere used to maintain an open borehoie and to allow for acquisition of samples with a standard spilt spoon sampler. The approximate boring locations were deterrnined by hand taping from the existing residence. The boring elevation was approximately determined by eye with respect to a temporary benchmark, the top of concrete slab at the northwestem corner of the exiting garage, at an assumed elevation of one hundre�J (100) feet. The locations and elevations of the borings should be �onsidered accurate only to the degree implied by the methods used. The field exploration was continuously monitored by an ��nn��eer from our firm �vho maintained a log of each boring. Our representative classifed the soil encountc•red in the borings, obtained representative soil samples and observed pertinent site features. Soils were classified visually in the field in general accordance with the Unified Soil Classifcation System (USCS) which is summarized on Plate 9, Legend. � The number and apprc,ximate locatian of each of the borings are shown on the Sita Plan, Plate 2. ihe final log, presented on Plate 10, represents our interpretation iof the field log and the results of selective laboratorv testing of representative soil samples. The stratification lines on the logs represent the approximate boundary Ibetween soil types. In actuality, the transition may be more gradual or more severe. Standard Penetration Tests (SPT) were perFormed at incremeit'cal depths in the I exploratory boring. The test involves driving a standard split spoon sampler into the ground at the botiom of the augered hole to retrieve represeiztative samples of the soils