In 1996, the U.S. Geological Survey (USGS), in cooperation with the Michigan Department of Environmental Quality (MDEQ) and nine southeast Michigan counties, began a study of the factors controlling arsenic concentrations in drinking water. The early results of this study raised broader concerns in Oakland County about the quality of groundwater in general and drinking water in particular. In response to these concerns, Oakland County worked with the USGS and the Center for Applied Environmental Research at the University of Michigan - Flint (CAER) to study distributions of arsenic, nitrate and chloride in groundwater, with emphasis on sites where concentrations of these constituents exceeded the Maximum Contaminant Levels (MCLs) and Secondary Maximum Contaminant Levels (SMCLs) set by the U.S. Environmental Protection Agency (EPA). The maps produced for this report are based on historical data compiled from MDEQ records.
The Oakland County fact sheet provides an overview of arsenic, nitrate, and chloride concentrations throughout the county, and information about health effects of these three substances in water. In addition, there is a map for each township that shows areas where concentrations exceed EPA MCLs and SMCLs in more detail. An electronic version of each fact sheet is available in pdf format below:
If you do not have Adobe Acrobat Reader, then you can download it for free at
http://www.adobe.com/products/acrobat/readstep2.html
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Contacts:
Stephen Aichele
U.S. Geological Survey
6520 Mercantile Way, Suite 5
Lansing, MI 48911
Richard Hill-Rowley
Center for Applied Environmental Research
University of Michigan-Flint
Room 529 Murchie Science Building
Flint, MI 48502-2186
Matt Malone
Center for Applied Environmental Research
University of Michigan-Flint
Room 529 Murchie Science Building
Flint, MI 48502-2186
 Oakland County |
 Water Resources Division, Michigan District | |
 Oakland County Health Division |
 University of Michigan-Flint: Center for Applied Environmental Research |
Publication
Aichele, S.S., Hill-Rowley, R., and Malone, M., 1998, Arsenic, Nitrate and
Chloride in Groundwater, Oakland County, Michigan. U.S. Geological Survey Fact
Sheet 135-98.
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