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October 3,2016 <br /> Single-Family Residence <br /> L&A Job No. 16-124 <br /> Page 5 <br /> SOIL CONDITION <br /> Subsurface conditions of the project site were explored with four test pits. The test pits <br /> were excavated or August 29, 2016, with a rubber-track backhoe to depths from 8.0 to <br /> 9.5 feet The approximate locations of the test pits are shown on Plate 2 - Site and <br /> Exploration Location Plan. The test pits were located with either a tape measure or by <br /> visual reference to existing topographic features in the field and on the topographic <br /> survey map, and their locations should be considered as only accurate to the measuring <br /> method used. <br /> A geotechnical engineer from our office was present during subsurface exploration to <br /> examine soil and geologic conditions encountered and complete logs of the test pits. Soil <br /> samples obtained from each soil layer in the test pits were visually classified in general <br /> accordance with United Soil Classification System, a copy of which is presented on Plate <br /> 3. Detailed descriptions of soil layers encountered during site exploration are presented <br /> in test pit logs on Plates 4 and 5. <br /> All four test pits excavated on the site encountered a layer of loose organic topsoil <br /> mantling the site. underlying this topsoil is a layer of weathered soil of light purplish- <br /> brown to light grayish-brown to light-brown, silty fine sand to fine sandy silt, from 2.0 to <br /> 5.5 feet thick. The transitional beds soil unit, shown in the above-referenced geologic <br /> map, was encountered by Test Pits 2 and 3 at the depth of 5.5 and 7.0 feet, respectively. <br /> The advance outwash soil unit, shown overlying a transitional beds soil unit in the above- <br /> referenced geologic map,was encountered by Test Pits 1 and 4 at the depth of 4.3 and 6.5 <br /> LIU & ASSOCIATES, INC. <br /> 1013- <br />