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AIPG Luncheon Speaker - 6 October 2009 - Michael P. Convery - Minnesota Dept. Health Abstract: Arsenic in
Minnesota Groundwater In 2008, the Minnesota Department
of Health (MDH) began requiring all newly-constructed, potable water supply
wells to be tested for total arsenic. Earlier investigations dating back
to the mid-1990’s indicated that up to 15% of wells in Minnesota
have arsenic levels exceeding the U.S. EPA Maximum Contaminant Level (MCL)
of 10 micrograms/liter. Approximately 8% of new potable wells constructed
in the past year exceed this MCL. Arsenic has the potential to cause disease
to a number of body organs and systems. The occurrence of arsenic is largely
associated with the distribution of Des Moines Lobe glacial till, but
concentration levels in a particular well reflect local geology, geochemical
conditions, and well construction. The presence of arsenic in drinking
water has the potential to cause disease in a variety of organs and body
systems. Minnesota Department of Health
B. Sc. (Earth Science) – State University of New
York at Stony Brook (1976);
1979-83: Minnesota Department of Health – Water
Supply & General Engineering;
Professional Geologist (# 30003) – licensed in
Minnesota;
Water Quality Association – Public Health Review
Board (2006 – present);
Copyright 2003, AIPG Minnesota Section Contact webmaster with questions or comments about this site. |
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