4815 EVERGREEN WAY 2016-01-01 MF Import

JP Morgan Chase April 29, 2070 Geotechnical Investigation Proposed Chase Bank Everett, WA PSI Report No. 0704186 Soil descriptions and interfaces between soil types shown in the logs are interpretive, ard actual changes may be gradual. LABORATORY TESTIMG PROGRAM AND PROCEDURES General Soil samples obtained during the field explorations were examined in our laboratory. The physical characteristics of the samples were noted and the field classifications were modified where necessary in accordance with terminology presented the General Notes included in this appendix. Representative samples were selected during the course of the examination for further testing. The testing program included visual-manual classification. The testing procedures and resi�!ts of the tests are summarized below. Visual-Manual Classification The soil samples were classified in general accordance vrith giiidelines presented in ASTM D2488, Standard Practice for Description and Identification of Soils (Visual-Manual Procedure). Certain terminology incorporating current local engineering prictice, as provided in the Soil Classification Chart included with or in lieu of ASTM terminology. The term wh`.ch best described the major portion of the sampie wes used in determinin�i the soil type (that is, gravel, sand, silt ar clay). Natural Water Content Natural moisture content determinations were made on selected samples. The natural moisture content is defined as the ratio of the weight of water to dry weight of soil, expressed as a percentage. The results of the moisture content determinations are presented on the boring logs in this appendix. Dry Unit Weight The dry unit weight of representative soils was determined in the laboratory i.;ing Shelby tube samples. The dimensions of the specimen were carefully measured, the volume calculated, and the specimen weighed. After oven drying, the specimen was reweighed and the water content caiculated. The dry unit weight was then computed. The dry unit weights are reported on the boring ', log. I ��c'• lM`�� A-3