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GROUND PENETRATING RADAR <br /> A Current Pavement Surface Suspected Original Sub-grade A' <br /> SOUTH NORTH <br /> 0 0 <br /> -s <br /> t <br /> 10 <br /> S. Excavation *Ap Former 2 Y5$ <br /> d -151 1 <br /> — 6 <br /> 3 <br /> a l,r C �! 4?�• W <br /> 555 30 ---yi��i�'— <br /> ME <br /> _35 5 <br /> 0 5 10 15 20 25 37 35 40 <br /> Dianne(fed) <br /> Ground penetrating radar (GPR) is sensitive to variations in the electrical properties of <br /> subsurface materials and provides a detailed electronic image of the shallow subsurface in <br /> real time. Surveys are nondestructive and noninvasive, not affected by nearby cultural <br /> features, and can be rapidly performed by one person in a variety of site conditions. <br /> GPR surveys can be used to locate and <br /> determine the depth and/or approximate <br /> dimensions of: <br /> • Utilities <br /> • Underground storage tanks <br /> • Buried debris <br /> • Reinforcement in concrete <br /> • Voids and cavities <br /> • Former trenches and excavations <br /> • Archeological and historical remains <br /> • Shallow sediment and bedrock horizons <br /> „019CAL GE W.STREET <br /> - COTATI, CA 9 931 <br /> OM <br /> � 321 A BLODGETT STREET• COTATI, CA 94931 <br /> •" GEOPHYSICAL CONSULTANTS INC. TELEPHONE (707)796-7170 • FAX (707) 796-7175 <br />