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DCEC – Why is the Silurian Dolomite Aquifer so Vulnerable to Contamination?

September 13, 2023 @ 7:00 pm - 8:30 pm

Dr. Muldoon is a licensed professional geologist and hydrologist in Wisconsin. She will be talking about the hydrogeology of Door County’s Silurian dolomite aquifer and explaining what the implications are for water quality. Manure impact in Kewaunee County, recent research from a site in southern Door County, and an update on the AEM survey, which shows soil depth to bedrock, will also be discussed.

Dr. Muldoon’s research focuses on applied groundwater questions throughout Wisconsin. Her interests include investigation of groundwater quality and flow in carbonate rocks, the relationship between carbonate stratigraphy and hydraulic properties, land-use impacts on groundwater quality, and delineation of wellhead protection zones in fractured rock. Her professional memberships include American Geophysical Union (AGU), Association of Ground Water Scientists and Engineers (AGWSE), WI section of the American Water Resources Association (AWRA) and Geological Society of America (GSA).

Please join us for this informative program to learn why Door County’s geology is so vulnerable to surface activity contamination and how it is jeopardizing our water quality.

Dr. Muldoon received both her Ph.D. (Hydrogeology, 1999) and M.S. (Pleistocene Geology & Hydrogeology, 1987) from the University of Wisconsin-Madison, and her bachelor’s degree (A.B. Earth & Planetary Sciences, 1983) from Washington University in St. Louis. She started her career with the Wisconsin Geological & Natural History Survey in 1987, and then moved to UW-Oshkosh for 21 years where she was a professor of Geology and taught the hydrogeology courses (Physical, Chemical, and Field Methods), Environmental Geology for non-majors, and took occasional field trips to the Colorado Plateau and Belize. Dr. Muldoon has recently returned to the Wisconsin Geological and Natural History Survey where she conducts groundwater research.

This free program will take place in person and on Zoom. A zoom link can be found at


September 13, 2023
7:00 pm - 8:30 pm
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Door County Environmental Council
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Crossroads at Big Creek
2041 Michigan Street
Sturgeon Bay, WI 54235 United States
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