Laserfiche WebLink
Geotechnical Engineering Report May 25,2017 <br /> Central Everett CHC,Everett,Washington RGI Project No.2017-094 <br /> APPENDIX A <br /> FIELD EXPLORATION AND LABORATORY TESTING <br /> On May 16, 2017, RGI performed field explorations using a hollow stem auger drill rig. RGI <br /> explored subsurface soil conditions at the site by observing the drilling of two test borings <br /> to a maximum depth of 31.5 feet below existing grade. The boring locations are shown on <br /> Figure 2. The boring locations were approximately determined by measurements from <br /> existing site features and topography. <br /> A geologist from our office conducted the field exploration and classified the soil <br /> conditions encountered, maintained a log of each test exploration, obtained <br /> representative soil samples, and observed pertinent site features. All soil samples were <br /> visually classified in accordance with the Unified Soil Classification System (USCS). <br /> Representative soil samples obtained from the explorations were placed in closed <br /> containers and taken to our laboratory for further examination and testing. As a part of <br /> the laboratory testing program, the soil samples were classified in our in-house laboratory <br /> based on visual observation, texture, plasticity, and the limited laboratory testing <br /> described below. <br /> Moisture Content Determinations <br /> Moisture content determinations were performed in accordance with ASTM D2216-10 <br /> Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil. <br /> and Rock by Mass (ASTM D2216) on representative samples obtained from the <br /> exploration in order to aid in identification and correlation of soil types. The moisture <br /> content of typical samples were measured and is reported on the boring logs. <br /> Grain Size Analysis <br /> A grain size analysis indicates the range in diameter of soil particles included in a <br /> particular sample. Grain size analyses was determined using D6913-04(2009) Standard <br /> Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis (ASTM <br /> D6913) on three of the samples. <br /> III <br /> RILEYGROUP <br />