2106 GRAND AVE 2016-01-01 MF Import

' ' APPENDIX A ' FIELD EXPLORATION ' E-12863 Earth Consulting Incorporated (ECI) pertormed the field exploration on May 3, 2007. � Subsurface conditions at the site were explored by drilling two borings and two hand auger holes to a maximum depth of 31.5 feet below existing grade. The borings were drilled by Boretec using a tracked drill rig. ( Approximate boring and hand auger locations were estimated by pacing from site features depicted on a site plan. The boring elevations were estimated based on topographic data 1 depicted on the site plan. 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 Plate 2. IThe field exploration was continuously monitored by Mr. Steve Scharf from our firm who classified the soils encountered, maintained a log of each boring, obtained representative I samples, and observed pertinent site features. The samples were visually classified in accordance with the Unified Soil Classification System (USCS), which is presented on the "Legend," Plate A1. Representative soil samples were collected and returned to our Ilaboratory for further examination and testing. Logs of the borings are presented on Plates A2 through A5. The final logs represent our � interpretations of the fieid logs and the results of the laboratory examination and tests of t"ield samples. The stratification lines on the logs represent the approximate boundaries between soil types. In actuality, the transitions may be more gradual. l The borings were drilled using hollow-stem augers. In each boring, Standard Penetration Tests (SPTs) were performed at selected intervals in general accordance with ASTM Test Designation D1586. The split spoon samples were driven with a 140-pound hammer freely � falling 30 inches. The number of blows required to drive the last 12 inches of penetration is calied the "N-value." This value helps to characterize the site soils and is used in our engineering analyses. These results are recorded on the boring logs at the appropriate sample depths. I