2. Referenced Documents

D420 Guide to Site Characterization for Engineering Design and Construction Purposes
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D5730 Guide for Site Characterization for Environmental Purposes With Emphasis on Soil, Rock, the Vadose Zone and Ground Water
D5753 Guide for Planning and Conducting Borehole Geophysical Logging
D6235 Practice for Expedited Site Characterization of Vadose Zone and Ground Water Contamination at Hazardous Waste Contaminated Sites
D6429 Guide for Selecting Surface Geophysical Methods
D6431 Guide for Using the Direct Current Resistivity Method for Subsurface Investigation