The Vermillion River Watershed Joint Powers Organization, in partnership with the City of Burnsville, is planning an overall improvement in the Alimagnet Lake subwatershed that consists retrofit two existing stormwater ponds that drain to Alimagnet Lake, a nutrient impaired water, with iron-enhanced sand filter benches. It is estimated that a significant amount of phosphorus reduction will be achieved by implementing this project, bringing Alimagnet Lake closer to state water quality standards.
As part of the Dakota County Transportation Department's highway 78 road reconstruction project, the Vermillion River Watershed Joint Powers Organization is partnering with Dakota County to install a nitrate treatment practice on a tributary to the South Branch Vermillion River adjacent to the road. The South Branch Vermillion River subwatershed is the highest nitrate loading subwatershed in the Vermillion River Watershed and is a significant contributor to contaminated drinking water in the eastern portion of the watershed.
South Creek is a tributary to the Vermillion River and a DNR-designated trout stream. Currently, the creek is not meeting state water quality standards for sediment, temperature and dissolved oxygen The Vermillion River Watershed Joint Powers Organization and the City of Lakeville propose to retrofit an existing stormwater pipe with a hydrodynamic separator to reduce the sediment load reaching South Creek and the Vermillion River. One hydrodynamic separator will be installed and is estimated to reduce sediment loads to South Creek and the Vermillion River by 4 tons per year.
The Vermillion River Watershed JPO is partnering with Dakota County and the City of Lakeville to enhance stormwater management along County Road 50. A treatment train approach with an iron-enhanced sand filter at the tail end to remove dissolved phosphorus will be implemented to treat a drainage area including a portion of the upstream neighborhoods that currently receive little to no stormwater treatment. The practice is anticipated to reduce 20 pounds of phosphorus annually from reaching Lake Marion, a water resource with high recreational value targeted for protection.
South Creek, a tributary to the Vermillion River and a DNR-designated trout stream. Currently, the creek is not meeting state water quality standards for sediment, temperature and dissolved oxygen and it flows through a large stormwater basin in the City of Lakeville. The Vermillion River Watershed Joint Powers Organization, in partnership with the city, propose to create a new channel for the creek in order to separate it from the pond. The result would be significantly cooler temperatures, increased dissolved oxygen, and less sediment-laden water in South Creek.
The Drinking Water Contaminants of Emerging Concern (CEC) program identifies environmental contaminants for which current health-based standards currently do not exist or need to be updated, investigate the potential for human exposure to these chemicals, and develop guidance values for drinking water. Contaminants evaluated by CEC staff include contaminants that have been released or detected in Minnesota waters (surface water and groundwater) or that have the potential to migrate to or be detected in Minnesota waters.
The purpose of this project is to identify effective irrigation and nutrient management best management practices and technologies and the barriers that prevent irrigators, producers, and other agricultural partners from adopting them in Otter Tail County. The primary goal is to reduce nitrate in areas where groundwater is susceptible to contamination as mapped by The Minnesota Department of Health by identifying effective BMPs and addressing the barriers to their adoption.
The Otter Tail Water Management District (OTWMD) manages the wastewater for nearly 1,750 private residences near Otter Tail Lake, Deer Lake, and Lake Blanche. There OTWMD is responsible for 101 monitoring wells that were installed in 1984 and 1985 that are no longer being used and need to be properly sealed. The goal of this project is for the East Otter Tail Soil and Water Conservation District (EOTSWCD) to assist the OTWMD in properly sealing 100% of the monitoring wells that are located within the Otter Tail Surficial Aquifer.
The purpose of this project is to develop a detailed tool that can be used in all watersheds within the Otter Tail and Becker counties to prioritize, target, and measure implementation practices at the field scale. The PTM App will significantly increase the targeting capabilities in Otter Tail and Becker Counties. The Watershed Restoration and Protection Strategy has not been completed for Otter Tail County, yet, and the PTM App will be able to assist targeting and prioritizing when those documents are created.
This project will result in the development of three critical pieces of information. They include: 1. Development of restoration and protection strategies for all waterbodies in the district relative to the State's Non-point Source Funding plan 2. Use of PTMApp to tie the WRAPs implementation tables from the Buffalo and Red River Watersheds to targeted on-the-ground projects and practices that will provide measurable water quality improvements, and 3.
Realizing the need for increased technical capacity in the field offices, the Becker, East Otter Tail and West Otter Tail Soil and Water Conservation Districts have developed an agreement that will increase technical capacity while minimizing costs to each district. The first step was taken in this agreement through the recent hire of a shared engineer. Currently, minimal survey grade equipment is owned by the districts. This grant will be used to purchase an integrated survey system.
The purpose of this project is to complete subwatershed analysis for Cannon River and Vermillion River sub-watersheds to prioritize and target Best Management Practices based on cost-effectiveness with regard to pollutant reduction. This process is intended to proactively assist local water management and partner agencies in maximizing the value of each dollar spent to improve water quality in the respective rivers.