Each of these options requires employing a professional firm to do the required testing. After all the information has been gathered concerning the probable local ground water source sites, these sites must be evaluated for potential contamination. The same considerations given to a well head protection program are applicable here and can serve as the basis for what will become the wellhead protection program for the selected site. Contaminants can be naturally occurring or synthetic and can be located above or below the ground surface. Contaminants may have been injected into the soil accidentally or purposefully.
Contaminants can travel considerable distance into an aquifer in some conditions.
Soil permeability, depth, underlying materials, and the nature of groundwater movement are all factors that influence the distance contaminants can travel to affect a well's water quality. Each well must be considered individually, keeping in mind that even the direction of groundwater flow could change as a result of a new wells zone of influence. Once all this information has been gathered, the best available site that is acceptable to the community will likely be evident. You can now concentrate on what type of well construction is appropriate, a subject in itself. Click here to Visit the Opflow Forum.