Browsing by Subject "springshed"

Now showing 1 - 20 of 36
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    19 June 2006 Dye Trace of the Cave Farm Blind Valley Stream Sink (MN23:B0058)
    (2006-08) Costello, Daniel E; Alexander Jr., E. Calvin
    A qualitative fluorescent dye trace has established that water sinking in the Cave Farm Blind Valley resurges at Bly’s Spring on Bear Creek in Fillmore County, Minnesota. This trace establishes the resurgence point for the Cave Farm Blind Valley and a lower limit of > 1 kilometer per day on the groundwater flow velocity. This trace documents the potential impact of a break in the British Petroleum pipeline, which is directly below the blind valley, could have on the Spring Valley karst. The Spring Valley karst also may act as an underground flow path that pirates water from Deer Creek to Bear Creek.
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    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 J
    Southeastern 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.
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    Canton Area Dye Tracing- Canton Stormwater Estavelle and Highway Runoff Receptor Sinkholes, Fillmore County, MN
    (2020-06) Green, Jeffrey A.; Alexander, E. Calvin Jr.; Alexander, Scott C.; Barry, John D.
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    Crystal Creek Dye Trace Report Fillmore County, Minnesota
    (2017-05) Kuehner, Kevin J; Green, Jeffrey A; Barry, John D; Rutelonis, J. Wes; Wheeler, Betty J; Kasahara, Sophie M; Luhmann, Andrew J; Alexander Jr., E. Calvin
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    Daley Creek Dye Trace Report 2009 Houston County, Minnesota
    (2009-12) Green, Jeffrey A; Peters, Andrew J; Luhmann, Andrew J; Alexander Jr., E. Calvin
    A 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.
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    Dye Tracing Sewage Lagoon Discharge in a Sandstone Karst, Askov, Minnesota
    (Proceedings of the 10th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst. © 2005 American Society of Civil Engineers. Published online: April 26, 2012, 2005-09-28) Alexander Jr., E. Calvin; Alexander, Scott C; Piegat, James J; Barr, Kelton D; Nordberg, Brad
    An investigation of the sandstone karst at Askov, Pine County, Minnesota was conducted utilizing fluorescent dye tracing techniques. Connections were documented between the effluent from WWTF lagoons discharged into a sinking stream and local residential water supply wells southwest of the stream sink, over kilometer-scale distances. The apparent velocity of dye from the steam sink to the residential well was 57 m/day, much faster than would be expected for porous-media flow in a sandstone but slower than expected for well-developed conduit karst in carbonate rock. The traces also document stage-dependent, divergent flow to the northeast and west from recharge to a sinkhole adjacent to the lagoons. A well-developed conduit system extends a few hundred meters under the northern portion of the lagoons with flow velocities greater than 128 m/day to the northeast. A slower flow system extends for at least a kilometer to the west and northwest with a range of apparent flow velocities that average about 9 m/day. The slower flow system reached a broad “fan” of residential wells to the west but was not detected in other wells in the same direction.
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    Dye Tracing to Understand Karst Groundwater Flow Systems In Southeastern Minnesota
    (2009) Greene, Julie; Alexander Jr., E. Calvin
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    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 C
    Southeastern 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.
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    Fountain Spring Cave Dye Trace Fillmore County, MN 2016 Dye Trace Report
    (2018-10) Larsen, Martin R; Barry, John D; Kasahara, Sophie M; Wheeler, Betty J; Alexander Jr., E Calvin
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    Gilbert Creek Dye Trace Report Wabasha County, Minnesota
    (2017-03) Green, Jeffrey A; Ustipak, Kelsi R; Wheeler, Betty J; Alexander Jr., E. Calvin
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    Hydrology of Goliath’s Cave, Fillmore County, Minnesota
    (2007) Maas, Benjamin J; Green, Jeffrey A; Alexander Jr., E. Calvin
    https://gsa.confex.com/gsa/2016AM/webprogram/Paper283919.html
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    Indian Springs Creek Dye Trace Report Houston County, Minnesota
    (2017-03) Green, Jeffrey A; Luhmann, Andrew J; Alexander, Scott C; Wheeler, Betty J; Alexander Jr., E. Calvin
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    Ironwood Spring Dye Trace and Groundwater Assessment Olmsted County, Minnesota
    (2021-07) Barry, John D.; Alexander, E. Calvin Jr.; Green, Jeffrey A.
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    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. Calvin
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    Meyer’s Basin Springshed & Forlorn River Springshed dye traces 1996-1999 Fillmore County, Minnesota
    (2021-01) Green, Jeffrey A.; Barry, John D.; Alexander, E. Calvin Jr.; Alexander, Scott C.
    This report presents the findings of nine dye traces that were conducted from 1996-1999 as part of ongoing groundwater mapping efforts between the Fillmore Soil and Water Conservation District (SWCD), Department of Natural Resources (DNR), and the University of Minnesota (U of M). The traces were conducted in an active karst area located west of the Forestville State Park main unit. The October 1999 traces presented in the report were a duplicate trace that utilized automatic water samplers to collect dye breakthrough curves. Groundwater travel time from the sinkhole located in the Stewartville Formation to the spring emerging at the base of the Cummingsville Formation was determined to be 1.5 miles/day.
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    Ordovician Karst of Southeast Minnesota Field Trip Guidebook
    (2015-10-06) Alexander Jr., E. Calvin; Green, Jeffrey A; Runkel, Anthony C; Barry, John D
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    Orion Sinkhole Plain - Devil’s Den Spring Complex; Olmsted County, Minnesota; 2018 Dye Trace Report
    (2020-01) Barry, John D; Green, Jeffrey A; Larsen, Martin R; Alexander Jr., E Calvin
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    Ostrander Dye Trace Report Fillmore County Minnesota Traces: 17 May 1993
    (2018-01) Rutelonis, J. Wes; Alexander, Scott C; Green, Jeffrey A; Barry, John D; Alexander Jr., E. Calvin