6807 EVERGREEN WAY 2016-01-01 MF Import

APPENDIX A FIELD EXPLORATION E-4611-3 Our fieid expioration was performed on April 1, 1999. Subsurface conditions at the site were expiored by drilling six bc,rings to a maximum depth of ten and one-half feet below grade. The borings were drilled by Associ�ted Drilling, Inc. subcontracted to ECI, using a truck-mounted drill rig. Approximate boring locations were determined by pacing from the property corners and site features. Approximate boring elevations were determined relative to each other. The locations and elevations of the borings should be considered accurate only to the degree implied by the method used. These approximate locations are shown on the Boring Location Plan, Plate 2. The field exploration was continuously monitored by a geologist from our firm who classified the soils encountered, maintained a log of each boring, obtained representative samples, measured groundwater levels, and observed pertinent site features. The samples were visually classified in accordance with the Unified Soil Ciassification System which is presented on Plate A1, Legend. Representative soil samples were placed in closed containers and returned to our laboratory for further examination and testing. Logs of the borings are presented on Plates A2 and A3. The final logs represent our interpretations of the field logs and the results of our laboratory examination and testing. The stratification lines on the logs represent the approximate boundaries between soil iypes. In actuality, the transitions may be more gradual. The borings were drilled using hollow siem auger drilling equipment. In each boring, Standard �enetration Tests (SPT) were performed at selected intervals in general 2ccordance witli ASTM Test Designation D-1586. The split spoon samples were driven vvith a one hundred forty (140) pound hammer freely falling thirty (30) inches. The number of blows required to drive the last twelve (12) inches of penetration are called the "N-value". This value helps to characterize the site soils and is used in our engineering analyses. Shear strengths of undisturbed soils were measured where practical in the field with a penetrometer. These results are recorded on the boring and test pit logs at the appropriate sample depths. Eanh Contultantt. Inc.