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This profile was conducted in an area of suspected concrete and rock debris. As you can see, large Bull's-eye areas of <br /> higher resistivity exist. These areas are interpreted to be buried concrete and decorative boulders and extend to depths <br /> of up to 20 meters. <br /> Some benefits to consider: <br /> This survey work was conducted despite ongoing operations at the several properties. <br /> These surveys can be conducted in endangered habitat sensitive areas. <br /> No permitting is required for conducting these surveys, and therefore, can be scheduled ahead of drilling. <br /> When conducted in conjunction with exploratory borings or test pits, it can increase the overall extent of subsurface <br /> information as well as aid in boring and test pit location. <br /> We have used Resistivity Surveys to: <br /> Map Faults <br /> Map fracture zones for water well sighting <br /> Map large karst voids and sea caves <br /> Find depth to groundwater, in certain specific situations <br /> Generally characterize subsurface geology. <br /> Aid environmental contamination flow projects when used to evaluate locations of paleo stream channels or fault <br /> zones. <br /> Find buried bedrock valleys,which can be an important source of groundwater in unconfined aquifers. <br /> Delineate vertical joints or cracks,which can indicate subsidence features. <br /> If you have any questions or comments, please do not hesitate to call. <br /> Patrick Lehrmann RGP <br /> Principal Geologist/Geophysicist <br /> Southwest Geophysics Inc. <br /> 7438 Trade Street <br /> San Diego,California 92121 <br /> Tel: 858 527 0849 <br /> Fax: 858 527 0851 <br /> Cell:760 908 6215 <br /> plehrmann@southwestgeophysics.com <br /> Hans van de Vrugt,C.E.G., R.Gp. <br /> Principal Geologist/Geophysicist <br /> Southwest Geophysics, Inc. <br /> 7438 Trade Street <br /> San Diego,California 92121 <br /> Tel: 858-527-0849 <br /> Fax: 858-527-0851 <br /> Cell:858-204-2863 <br /> hvandevrugt@southwestgeophysics.com <br /> 3 <br />