Watershed Achievements Report

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Minnesota Upper Mississippi River Basin River Basin Watershed Achievements Report 2008 2015 Cannon River Watershed North Cannon River Bacteria Reduction Project The North Cannon River Bacteria Reduction Project began in 2009 by using GIS to identify specific parcels of land in southern Dakota County (within the North Cannon River Watershed Management Organization [NCRWMO]) in need of filter strips (or buffer strips) along streams, waterways and ditches. Landowners were then identified and contacted by the SWCD with information about the benefits of filter strips and programs offering cost share options and funding to install filter strips or other BMPs. Through this project 40.9 acres of filter strips were installed along streams, rivers and ditches to slow runoff and improve water quality. Additionally, a large-scale feedlot improvement project was installed along with two water and sediment control basins. These projects will result in annual estimated pollutant reductions of 2,050 lbs of phosphorus and 1,360 tons of sediment. Bacteria loads to water bodies will also be reduced through these practices. Less tangible but equally important are results of the landowner outreach and education that was conducted through this project. Although it’s difficult to quantify, discussions about the benefits of buffers with individual landowners raise awareness about the issue, the current rules requiring buffers along Minnesota Department of Natural Resources (DNR)-protected waters, and the various programs facilitating buffer installations. Although the option of installing harvestable filter strips for biomass production was not utilized as anticipated, conversations were generated and the concept was advanced in this area. Goals • Significantly increase the acreage of filter strips in the North Cannon River Watershed. • Contact and inform landowners about the benefits of filter strips and programs available to install them. • Minimize contamination runoff from entering waterbodies. Results that count • 40.9 acres of filter strips were installed in addition to one feedlot project and two water and sediment control basins. • Approximately 130 landowners were contacted by mail and another 40 were contacted in person regarding filter strips and funding opportunities. • Trends in water quality improvements are difficult to track and are dependent on multiple conditions during a given monitoring season. Bacteria remains high during runoff events in Chub Creek. Financial information Funding type: Section 319 Grant amount: $66,000 In-kind: $18,510 Matching funds: $36,500 Contact information Brian Watson, District Manager Dakota County SWCD 4100 220th Street West, Suite 102 Farmington, MN 55024 651-480-7777 brian.watson@co.dakota.mn.us MPCA Project Manager: Justin Watkins Filter Strip at the Fred Volkert farm near Waterford Township along the North Cannon River Minnesota Pollution Control Agency www.pca.state.mn.us 108
Upper Minnesota Watershed Red St. Croix River Mississippi River Basin River Achievements Basin Basin River Basin Report 2008 Watershed Achievements Report Statewide 2015 Twin Cities Watershed Hardwood Creek TMDL Implementation Project Hardwood Creek was listed on Minnesota’s 303(d) List of Impaired Waters, as not supporting aquatic life. The Creek was listed for biota and low DO. The resulting TMDL Study found the primary stressors on biota to be 1) loss of habitat due to sedimentation, and 2) low DO. To address loss of habitat due to sedimentation, the Hardwood Creek TMDL Implementation Plan recommended projects that reduced concentrations of TSS – mostly by reducing instream erosion. To address low DO, the Implementation Plan recommended livestock BMPs. The Hardwood Creek TMDL Implementation Project addressed both recommendations. To reduce TSS concentrations, field surveys and models identified the location and relative magnitude of in-stream erosion. On a site in Hugo, Minnesota, eroding stream banks were stabilized by creating a floodplain bench (i.e. two-stage channel). By constructing a floodplain bench, flood flow energy was reduced, resulting in more stable stream banks. At a site in Lino Lakes, Minnesota, a previously channelized stream reach was restored to a natural meandering pattern. Prior to restoration, this channelized section was actively widening, resulting in bank erosion and very poor instream habitat. Additionally, the channelization resulted in abandonment of adjacent floodplain wetlands, leaving no depositional areas for flood flow sediment. Following restoration, this reach is stable, connected to floodplain wetlands during flood flow, and has greatly improved in-stream habitat. To address low DO, we designed and installed livestock BMPs on a farm operating in the riparian area of Hardwood Creek. These BMPs include two stable stream crossings, a livestock fence, and “managed rotational” livestock grazing plan. Monitoring at all sites is ongoing. Preliminary results indicate a decrease in TSS and BOD. Goals • Reduce average annual TSS concentrations to 19 mg/L or less • Reduce average annual BOD concentrations to 3.2 mg/L or less • Improve in-stream habitat for fish and invertebrates Results that count • Average annual TSS concentrations are meeting goal (
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a Success Story . . . Lake Shaokata
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Cedar River Watershed and Shell Roc
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Introduction Watershed Achievements
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