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b) Ditches , channels , creeks , storm drains , ponds , and <br /> rated capacities . <br /> c) Water table <br /> d) Silt and overburden movement , traps and ponds , curtain <br /> walls and dams . <br /> IV . HYDROGEOLOGY <br /> 1 . Regional Hydrogeologic Setting <br /> 2. Field Investigation <br /> a) Exploratory borings , trenches , and earth scars (natural <br /> or man made) . <br /> b) Laboratory soil testing . <br /> c) Geophysical survey determination by: <br /> - seismic refraction <br /> - electrical resistivity <br /> - electrical logs <br /> - magnelometer traverse <br /> - permeability and pump tests <br /> *3. Site Hydrogeologic Conditions <br /> *a) Soil <br /> *b) Springs and seeps <br /> *c) Groundwater <br /> d) Faulting and seismicity <br /> 4. Engineering Properties of Soil and Bedrock <br /> NOTE: Methods and recognized techniques that may be required to <br /> 6 <br />