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& . <br /> GROUND PENETRATING RADAR REPORT <br /> Client & Project Information: <br /> BCI Project No.: 19 -17094 Client Name: Security First Insurance/Premier <br /> Adjusting Services <br /> Project Name: Barker Residence Client Contact: Charity Buchanan <br /> Location: 39740 Meadowood Loop Address: PO Box 1672 <br /> Zephyrhills, FL 33542 Oldsmar, FL 34677 <br /> Contact: Esther Barker Phone: 727 - 710 -1247 <br /> Phone: 813- 788 -6325 Claim No.: 3428 <br /> GPR Equipment & Operator Information: <br /> Control Unit: Noggin Plus /SmartCart Digital Equipment Christian Thibaut <br /> GPR Profiling System Operator(s): <br /> Antenna(s): 250 MHz Date of <br /> Manufacturer: Sensors & Software GPR Survey: January 27, 2009 <br /> Ontario, Canada <br /> GPR Survey Information: <br /> No. of Transects Scanned: 21 lines (TO to T20) Total scan distance: 1,090 feet <br /> Transect Locations: Transect locations shown in Figure 3 of BCI Subsidence Investigation report. <br /> Transects TO to T20 were completed with the 250 MHz antenna. <br /> GPR Equipment Settings & Signal Processing: <br /> 250 MHz antenna <br /> Time Windows: 250 MHz —160 nanoseconds (ns) <br /> Depth of Investigation: est. 11 to 13 ft. (250 MHz) <br /> based on assumed signal travel velocity of 0.33 to 0.45 ft. /ns <br /> (dry sandy and clayey soils) <br /> Profile scales: Horizontal scale: 1 inch = 10 ft. <br /> Vertical scale: 1 inch = 25 ns (250 MHz) <br /> Signal Processing: temporal filter: DEWOW (high pass filter) <br /> time gain = autogain <br /> Comments: Time window setting based on test scans over exterior areas of site and <br /> identification of surficial soils in hand auger borings (dry sand soils to depths ranging <br /> from 5 to 61/2 ft., underlain by clayey soils). <br /> Subsidence Investigation BCI Project No. 19 -17094 <br /> Barker Residence March 2009 <br /> Claim No. 3428 Page 1 <br />