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tPhase 77 Hazardous Materials Study for the Lodi Rail/Multimodal Station July 24, 1997 <br /> to Wilbur Smith Associates Project No. E168 <br /> ' Issue, D: <br /> ' Possible maintenance of railroad equipment at the southwest corner of East Elm St. and North <br /> Main St. was revealed in historic aerial photography. There may be a potential for near <br /> surface hazardous wastes or petroleum products to migrate beneath the site from this area and <br /> ' occur near the surface. <br /> Findings, D: <br /> ' Borings B6, B9, and 1310 were drilled along the eastern site boundary. Shallow soil <br /> contaminants were not identified visually, during field screening with a PID, or in samples <br /> submitted for analyses. <br /> Issue,E: <br /> A petroleum product pipeline operated by Santa Fe Pacific Pipelines traverses the eastern edge <br /> of the site. An industrial waste line is reported to be located below Sacramento Street <br /> adjacent to the western edge of the Site. Known leaks or releases from these lines have not <br /> been reported. <br /> ' Findings, E: <br /> Significant soil contaminants were not identified visually in trenches or borings, during field <br /> ' screening of drill cuttings and excavated soil with a PID, or in samples submitted for <br /> analyses. <br /> ' Issue, F: <br /> A magnetic and electromagnetic survey of the site indicates numerous subsurface anomalies <br /> ' that do not appear to be associated with known structures on the site. Magnetic information <br /> is used to map objects that contain iron or other buried objects that may exhibit magnetic <br /> susceptibility contrasts. <br /> Findings, F: <br /> ' Areas with suspicious magnetic anomalies were evaluated by trenching and/or drilling. With <br /> the exception of the oil/water separators and the waste oil tank found in the old gas station <br /> sites, all anomalies that we investigated were scrap sheet metal and piping, structural debris, <br /> ' signpost bases, railroad spikes, and abandoned utilities such as electric, water, and air <br /> conduits. <br /> ' Conclusions <br /> We did not find evidence of significant hazardous materials and/or petroleum product contamination <br /> ' of the near surface soils on the subject site. <br /> 8 <br /> V ESPANA GEOTECHNICAL CONSULTING <br />