Led by Mary Aycock, one of three EPA Project Managers involved in the Radiological Background Study for SSFL.

Testing of the giant 8-detector ERGS off-road converted forklift as well as the walking “cart” systems that carry one sodium iodide detector for the more difficult terrain.


Preston drives the machine slowly forward in 91 degree heat at one of reference locations nearest the Bridle Path area.  He has to make sure the detector is at the right distance to the ground, and watches the flag holders to guide him down each line or “stripe” of the area to be covered.