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KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

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APPENDIX B<br />

Relevant notes, remarks or comments about the survey<br />

Visible metal objects and their locations in the vicinity such as fencing, electric poles,<br />

railroad tracks, power lines, large radio frequency transmitters, etc.<br />

Antenna frequencies<br />

File designation (e.g., File 1 = Line 0, start 0,0, end 0,150, marks =25 ft)<br />

Electromagnetic Induction (EMI) Surveys<br />

For most EMI surveys, known or assumed geohydrologic features of the site, potential source locations<br />

and migration characteristics of hazardous constituents, are used to select specific techniques and<br />

equipment to establish appropriate locations and depth extents for anticipated geophysical<br />

measurements. A positioning system (e.g., GPS, Robotic Total Station, etc.) is selected to provide<br />

positioning information for the geophysical sensor, and a generalized grid system is generated at the site<br />

of investigation to guide field personnel across the survey area. Depending upon the specific EMI<br />

instrumentation used, continuous or ―point‖ measurements are recorded by field personnel over the area<br />

of interest.<br />

Information obtained during an EMI survey should be recorded digitally with the instrumentation, in the<br />

field log book, or on applicable field data sheets. At a minimum, the heading for each data sheet should<br />

contain the following information:<br />

Project name and location with state planar (or other) coordinate information<br />

Company or organization<br />

Date and time of day<br />

Operator(s) names<br />

Instrument make, model, serial number, and calibration date/frequency (if applicable)<br />

Weather (especially thunderstorms), surface topography, vegetation, and soil descriptions<br />

Relevant notes, remarks or comments about the survey<br />

Visible metal objects and their locations in the vicinity such as fencing, electric poles,<br />

railroad tracks, power lines, large radio frequency transmitters, etc.<br />

Specific method/technique identification<br />

Instrumentation test location (according to the survey plan)<br />

Coil types and configuration<br />

Several of the more common and cost-effective EMI techniques that may be used at Kirtland AFB are<br />

detailed below.<br />

Kirtland AFB<br />

SOPs for Field Investigations B-67 April 2004

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