Browsing by Author "Luhmann, Andrew"

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    Dye Trace Report Gorman Creek Trace: March 2011 Wabasha County, Minnesota
    (2017-02) Green, Jeffrey A; Luhmann, Andrew; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. Calvin
    The karst lands of southeast Minnesota contain more than one hundred trout streams that receive perennial discharge from Paleozoic bedrock springs. Several of the Paleozoic bedrock aquifers that provide discharge to these streams are dominated by conduit-flow. Field investigations into the flow characteristics of these aquifers have been conducted using fluorescent dyes to map groundwater springsheds and characterize groundwater flow velocities for use in water resource protection. Gorman Creek is one of these designated trout streams. The creek is located roughly 14 kilometers (8.5 mi.) northeast of Plainview, Minnesota in Wabasha County (Figure 1). This trace was completed to add to delineated springsheds of the region as part of the Environmental and Natural Resources Trust Fund (ENRTF) Springshed Mapping project.
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    Dye Trace Report on the Groundwater Springsheds of Roaring Spring and Frego Creek near Canton, Minnesota; Traces: September 2009, March 2010, and February 2011; Fillmore County, Minnesota
    (2016-02) Green, Jeffrey A; Luhmann, Andrew; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. Calvin
    Dye traces were conducted in and around the area of Canton, MN in southern Fillmore County as part of the Environmental and Natural Resources Trust Fund (ENRTF) funded Springshed Mapping project. This report covers traces done in September 2009, March 2010, and February 2011. Tracing had been done in the area previously in the spring of 2008 (Green et al., 2008) and 2009 (Green et al., 2009) under the auspices of the ENRTF-Springshed Project, spring of 2007 for the South Fork Root River watershed project (Green, 2007), in 1993 and 1994 during the Fillmore County Geologic Atlas Project and earlier work summarized in Alexander et al. (1995) and by Kingston and Janssen (1941).