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VVZ1 ItJc <br /> 1.0 INTRODUCTION <br /> WZI Inc. (WZI) conducted a ground geophysical investigation of the City of Lodi <br /> Rail/Multimodal Station, Lodi, California, for Espana Geotechnical Consulting. The project <br /> is located in the City of Lodi and within the former Southern Pacific Railroad depot area <br /> ' Lodi is under redevelopment and Espana Geotechnical is <br /> (Exhibit 1}. This portion of p P <br /> conducting a site assessment investigation for a third party to determine if any significant <br /> environmental liabilities are present at the property. The objective of the geophysical <br /> ' investigation was to locate and map any buried objects that may have formerly been <br /> located on the site such as underground fuel or waste oil storage tanks and/or fuel <br /> ' pipelines associated with previous property tenant activity that may be further investigated <br /> by direct methods such as drilling and/or exploratory trenching. <br /> The geophysical investigation was conducted on September 13 and 14, 1996. Equipment <br /> and personnel included a magnetometer system, ground conductivity system, pipe and <br /> cable locator and two field personnel. Magnetic and ground conductivity digital data <br /> processing and map preparations were conducted in the field. Final presentations and a <br /> written report were completed in the WZI Lodi office. <br /> It should be stressed that the accuracy of the geophysical anomaly locations are <br /> e dependent upon the size of the sampling interval. Since the surveys were acquired on <br /> a 10 foot spaced grid mesh (ground conductivity) and 5 foot spaced profiles (magnetic), <br /> absolute anomaly locations can vary up to +/-5 feet and +/-2.5 feet, respectively. Sources <br /> rof geophysical interference such as buildings, surface metal debris and fences limit the <br /> ability to interpret the data. <br /> 05300010..001 <br /> t <br /> r- <br />