2621 ROCKEFELLER AVE Geotech Report 2022-10-25

APPENDIX A FIELD EXPLORATIONS GENERAL Subsurface conditions were explored at the site by excavating six test pits, designed TP-1 through TP-6. The test pits were completed on October 19,2005 to depths ranging from 4Y2 to 10 feet below the existing ground surface. The locations of the test pits were staked in the field by Joe Zlab. The approximate locations of the test pits are shown on the Site Plan,Figure 2. TEST PITS The test pits were excavated using a rubber-tired backhoe. The test pits were continuously observed by a geotechnical engineer from our firm who classified the soils encountered, obtained representative soil samples and maintained a detailed log of each test pit. In addition,pertinent information including soil sample depths,stratigraphy,and groundwater seepage were recorded. The soils encountered during excavation were visually classified in general accordance with the soil classification system described in Figure A-1. The logs of the test pits are presented in Figures A-2 through A-7. Representative soil samples were obtained from the test pits, logged, sealed in plastic bags and transported to our laboratory. The field classifications were further evaluated in our laboratory. Observations of groundwater conditions were made during excavation. The groundwater conditions encountered during excavation are presented on the test pit logs. Groundwater conditions observed 111 during excavation represent a short term condition and may or may not be representative of the long term groundwater conditions at the site. I I 1 11 1 1 File No.11547 001-00 February 3,2006 Page A-1 GEDENUINEERS>;