I recently served as an expert witness for a case that hinged upon classification of an aquifer. This determination was key to establishing the clean up goals for the site. The other party presented tests and data that were obviously biased toward a no clean up option. No clean up also meant the public would be exposed to the contaminants. Other testing demonstrated a much different classification for the aquifer, and a more stringent clean up level for the public to be protected. The other “expert” was not licensed in the State and therefore not bound by the ethical standards of a licensed individual. I believe the public was ultimately protected by an unbiased assessment by an ethical licensed geoscientist.