Apparently there have been a number of issues with contamination of ground
water that has been affecting water wells. Much of this seems to have been a
result of chemical contamination resulting from various sources. If you
check out
http://www.lawyersandsettlements.com/case/well_water there is more
information on this problem. The site also provides a free case evaluation
for those who might be affected by this. I found this of interest and
thought it may be of some help.
kr0