Watershed Achievements Report

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Minnesota River Basin Watershed Achievements Report 2015 • Burandt continues to be monitored twice a month to determine lake conditions and to observe trends in total phosphorus, chlorophyll a, and secchi depth. Further vegetation surveys were conducted through 2013 on the lake to aid in future management decisions. Financial information Funding type: Section 319 Grant amount: $230,000 In-kind: $62,7614 Matching funds: $189,049 Contact information Paul Moline, Planning and Water Department Manager 600 East 4th Street Chaska, MN 55318 952-361-1825 pmoline@co.carver.mn.us MPCA Project Manager: Chris Zadak Rain Garden at the corner of Woodlawn Circle and Dunsmore Drive in Waconia, Minnesota Minnesota Pollution Control Agency www.pca.state.mn.us 70
Watershed Minnesota River Achievements Basin Report 2008 Watershed Achievements Report Statewide 2015 Lower Minnesota River Watershed Minnesota River Tributary Phosphorus and Flow BMPs This project was initially a partnership between Scott County, the Scott Watershed Management Organization (WMO), the Scott SWCD, BWSR and the NRCS. Project boundaries were subsequently amended to include the headwaters of Sand Creek in Rice and Le Sueur Counties and the respective SWCDs as partners. The project area consisted of the Sand Creek and Roberts Creek watersheds, and bluff areas directly tributary to the Minnesota River in southwest Scott County. The Minnesota River, Sand Creek and many of the lakes located in the Sand Creek watershed are considered water quality impaired. Impairments include aquatic life due to excessive turbidity, and recreation due to excessive nutrients. A number of studies had been completed to diagnose problems and identify pollutant sources. This project focused on using the information generated from these studies (including the Lower Minnesota River DO TMDL study and implementing identified BMPs. Agriculture is the primary land use in the project area and BMPs promoted included water and sediment basins (WASCOBs), grade control, terraces, grassed and lined waterways, nutrient management, alternative (rock) tile inlets, wetland restoration and filter strips. Over the project duration 84 applications were certified complete resulting in159 BMPs. The estimated receiving water pollutant reduction from the BMPs totals 2,115 tons/ year of sediment and 2,470 lbs/year of total phosphorus. In June of 2014 the area was hit by two large storms totaling about 14 inches of precipitation. The result was a Presidential Disaster Declaration. Inspections of the installed practices has been started but not completed. Of the 21 inspections complete 15 found damage. Goals • Accelerate the implementation of BMPs, specifically targeting 150 acres of filter strip, 25 to 30 acres of wetland restoration, 3 to 5 grade/water control structures, 5 to 10 tile intake controls, and an unspecified number of nutrient management plans. • Monitor water quality improvements and evaluate and document pollutant load reductions created by the project. • Effectively administer the project. Results that count • The filter strip and wetland restoration goals were not met with 80 acres, and 17 acres completed respectively. However, the grade/water control structures and alternative tile intake goals were greatly exceeded at 60 structures and 79 intakes, respectively. In addition, eight nutrient management plans were written. Estimated pollution reductions are 2115 tons/ year of sediment and 2470 pounds/year of phosphorus. • This goal was met with monitoring completed in 2013 at 5 sites plus the Metropolitan Council’s site on Sand Creek in Jordan. Metropolitan Council also completed pollutant load calculations using the monitoring data. Unfortunately variability in the data was high due to an eight inch precipitation event that fell on a portion of the watershed and the coefficients of variation for the TSS calculations were high meaning that the resulting areal loads for TSS should be used with caution. Pollutant reduction estimates were also completed for all of the BMPs. • The project was effectively administered as evidenced by the installation and certification of 159 BMPs, and BMP implementation cost finishing within 2% of the amount budgeted for BMPs. Lessons learned/Recommendations A number of lessons have been learned over the last few years. Most of these were not unique to the grant, and were learned from a combination of activities. They include: 1. To build on success. 2. Momentum is important and builds further momentum. 3. Momentum is as important as targeting. 4. Since momentum leads to further momentum it can also pull efforts away from targeting, and targeting requires on-going discipline from staff. 5. More implementation is needed. The project enabled the installation 159 BMPs. This is only about one BMP for every two square miles of the project area. 6. If you provide good service people come back with additional applications (note that many of the applications approved came from repeat land owners). 7. Relationship building and trust is key. 8. Annually revising the docket based on the past years’ experience is important for adapting. Minnesota Pollution Control Agency www.pca.state.mn.us 71
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Watershed Achievements Report 2015
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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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Section 319 Section 319 Grant progr
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eLINK Watershed Achievements Report
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