Today, most site investigations and remedial actions make use of mobile laboratories because of the need for fast and accurate results. The EPA has been promoting a flexible approach to site cleanup that recognizes site-specific decisions and data needs. This approach, known as TRIAD, has been designed to reduce costs, improve decision certainty, and expedite site closeout.

Some of the most successful TRIAD case histories involve the use of X-ray Fluorescence (XRF) screening for metals. Prior to the advent of field-worthy XRF systems, site investigation and remediation for metal contaminants proceeded in a more classical manner of waiting for fixed laboratory results  or paying a premium for rush results.



(more…)