Browsing by Author "Peters, Andrew J"
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Item Ahrensfeld Creek and Borson Northeast Dye Trace Report 2007-2010 Winona County, MN(2017) Green, Jeffrey A; Alexander Jr., E. Calvin; Alexander, Scott C; Luhmann, Andrew J; Runkel, Anthony C; Peters, Andrew JSoutheastern Minnesota’s karst lands support numerous trout streams. These trout streams are formed by springs discharging from Paleozoic bedrock. Dye tracing has been the tool of choice for mapping the springsheds (karst groundwater basins) that feed these springs. Previous work was focused on the Galena limestone karst. In order to accelerate springshed mapping, a two-year study was funded by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR). Across southeastern Minnesota, numerous springs discharge from the Cambrian St. Lawrence formation. The St. Lawrence is considered to be a confining unit under the Minnesota well code. A dye trace was initiated when a stream sink was discovered in the upper St. Lawrence Formation. The sampling points included springs, stream crossings, and a municipal well that may be at risk for surface contamination. Dye was recovered at one spring in less than two weeks and at two other springs in less than three weeks. This translates into travel times of 200-300 meters/day. The springs all discharge from the lower St. Lawrence Formation. The St. Lawrence contains beds of dolostone; the dye trace demonstrates that there is a karst conduit flow component in this formation. This is evidence that these springs are significantly more susceptible to degradation than previously thought.Item Daley Creek Dye Trace Report 2009 Houston County, Minnesota(2009-12) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. CalvinA dye trace was conducted from a stream sink on Daley Creek in Houston County. Daley Creek is a state designated trout stream west of the City of Houston (Figure 1). This trace was run to begin to delineate springsheds in this area.Item Dye Trace Report Harmony, Minnesota Area Traces: October 2007, June 2009, and November 2010 Fillmore County, Minnesota(2016-06) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. CalvinDye traces were conducted in the area of Harmony, MN in southern Fillmore County as part of the Environmental and Natural Resources Trust Fund (ENRTF) Springshed Mapping project. The traces described in this report were conducted to improve the delineation of the springsheds in the Harmony area. This report covers traces completed in October 2007, June 2009, and November 2010. Tracing had been completed in the vicinity previously for the ENRTF-Springshed project in the spring of 2008 (Green et al., 2008) and fall of 2008 (Green et al., 2009); as part of the ENRTF-Hydraulic Impacts of Quarries and Pits project from 2002-2004 (Green et al, 2003); in 1997 (Alexander et al, 1997); during the Fillmore County Geologic Atlas Project in 1993 and 1994 (Alexander et al, 1995); and for earlier work summarized in Alexander and others (1995) and by Kingston (1943).Item Dye Tracing Within the St. Lawrence Confining Unit in Southeastern Minnesota(Proceedings of the 11th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst. © 2008 American Society of Civil Engineers. Published online: June 20, 2012, 2008-09-26) Green, Jeffrey A; Luhmann, Andrew J; Peters, Andrew J; Runkel, Anthony C; Alexander Jr., E. Calvin; Alexander, Scott CSoutheastern Minnesota’s karst lands support numerous trout streams. These trout streams are formed by springs discharging from Paleozoic bedrock. Dye tracing has been the tool of choice for mapping the springsheds (karst groundwater basins) that feed these springs. Previous work was focused on the Galena limestone karst. In order to accelerate springshed mapping, a two-year study was funded by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative- Citizen Commission on Minnesota Resources (LCCMR). Across southeastern Minnesota, numerous springs discharge from the Cambrian St. Lawrence formation. The St. Lawrence is considered to be a confining unit under the Minnesota well code. A dye trace was initiated when a stream sink was discovered in the upper St. Lawrence Formation. The sampling points included springs, stream crossings, and a municipal well that may be at risk for surface contamination. Dye was recovered at one spring in less than two weeks and at two other springs in less than three weeks. This translates into travel times of 200- 300 meters/day. The springs all discharge from the lower St. Lawrence Formation. The St. Lawrence contains beds of dolostone; the dye trace demonstrates that there is a karst conduit flow component in this formation. This is evidence that these springs are significantly more susceptible to degradation than previously thought.Item Forestville North Dye Trace: September 5, 2008 to November 12, 2008(2008) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. Calvin; Alexander, Scott CA dye trace was conducted in an area near Forestville State Park in Minnesota from September 5, 2008 to November 12, 2008 (Figure 1). Numerous dye traces have been completed in this area in the past and this effort was made in order to better delineate the springsheds in this area due to the close proximity of numerous State of Minnesota designated trout streams. Achieving a better understanding of the connection of these sinkholes receiving surface water flow and their connectivity to springs that provide a cold water source for the designated trout streams in the area was the goal of this trace. However, the goal of this trace was two‐fold, one sinkhole that received dye, Minnesota Karst Feature Database number 23:D2474, had previously been studied and was shown to be connected to cold water sources for two trout streams. The previous dye trace was completed during wet, spring conditions and this trace was completed during a much drier time in the late fall. Completing the trace during these differing conditions may help to better understand the seasonal changes of the subsurface flow of groundwater.Item Frego Creek Dye Trace: March 11, 2008 to June 16, 2008(2008) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. Calvin; Alexander, Scott CA dye trace was conducted in an area near the city of Canton, Minnesota from March 11, 2008 to June 16, 2008. Dye traces have been completed in this area in the past and this effort was made to further refine delineation the springsheds in this area due to the close proximity of Frego Creek, a Minnesota designated trout stream. Much of the city of Canton’s stormwater flows to sinkholes throughout the city limits and some just outside of city limits. Achieving a better understanding of the connection of these sinkholes receiving this stormwater flow and their connectivity to springs that provide a cold water source for Frego Creek was the goal of this trace.Item Frego Creek Spring 2009 Dye Trace: March 6, 2009 to May 5, 2009(2009) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. Calvin; Alexander, Scott CA dye trace was conducted in an area near the city of Canton, Minnesota from March 6, 2009 to May 5, 2009. Dye traces have been completed in this area in the past and this effort was made to further refine delineation the springsheds in this area due to the close proximity of Frego Creek, a Minnesota designated trout stream. Much of the city of Canton’s stormwater flows to sinkholes throughout the city limits and some just outside of city limits. Achieving a better understanding of the connection of these sinkholes receiving this stormwater flow and their connectivity to springs that provide a cold water source for Frego Creek was the goal of this trace.Item Harmony Fall 2008 Dye Trace(2009) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. Calvin; Alexander, Scott CA dye trace was conducted in an area in the City of Harmony, Minnesota, and an area located just west of the City of Harmony, Minnesota from October 28, 2008 to May 4, 2009 (Figure 1). Numerous dye traces have been completed in this area in the past and this effort was made in order to better delineate the springsheds in this area due to the close proximity of numerous State of Minnesota designated trout streams. Achieving a better understanding of the connection of these sinkholes receiving surface water flow and their connectivity to springs that provide a cold water source for the designated trout streams in the area was the goal of this trace.Item Harmony Spring 2008 Dye Trace(2008) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., e; Alexander, Scott CA dye trace was conducted in an area in the City of Harmony, Minnesota from May 6, 2008 to June 13, 2008 (Figure 1). Numerous dye traces have been completed in this area in the past and this effort was made in order to better delineate the Buggywhip, Hart, and the Big Spring springsheds in this area due to the close proximity of numerous State of Minnesota designated trout streams. Achieving a better understanding of the connection of these sinkholes receiving surface water flow and their connectivity to springs that provide a cold water source for the designated trout streams in the area was the goal of this trace.Item Lewiston Interchange Dye Trace Report Winona County, Minnesota(2017-03) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. CalvinItem Sinks & Rises of the South Branch Root River Fillmore Co., Mn(2009-04-02) Alexander Jr., E. Calvin; Alexander, Scott C; Luhmann, Andrew J; Anger, Cale T; Green, Jeffrey A; Peters, Andrew JItem Spring Characterization Methods & Springshed Mapping(Proceedings of the 11th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst. © 2008 American Society of Civil Engineers. Published online: June 20, 2012, 2008-09-26) Alexander, Scott C; Luhmann, Andrew J; Alexander Jr., E. Calvin; Green, Jeffrey A; Peters, Andrew JSoutheastern Minnesota's karst lands support numerous trout streams created by coldwater springs emanating from Paleozoic bedrock. While trout streams have been traditionally managed as surface water resources they are fundamentally supported by clear, relatively constant temperature groundwater. In karst areas this groundwater resource is as vulnerable as surface waters to human activities. Designing Best Management Practices (BMPs) to protect groundwater fed springs should improve the overall protection of Minnesota's trout streams. Dye tracing has been the tool of choice for mapping the recharge area or groundwater basin that feed a particular spring. These karst groundwater basins have been termed "springsheds". In order to accelerate springshed mapping, a two~year study was funded by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR). To improve the effectiveness of dye tracing we are applying a variety of new tools to increase our knowledge of the underlying karst systems. Techniques being investigated include temperature and discharge monitoring, detailed structural mapping of the aquifers, unit hydrographs, chemical and isotopic studies. These new methods to define the size and geometry of springsheds can be tested against basins previously defined by dye tracing. In previously untraced basins these predictive tools can be used to design more efficient tracing programs. The following paper demonstrates the application of structural mapping to dye tracing.Item Winnebago Creek Headwater Dye Trace Report Houston County, Minnesota(2017-03) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. Calvin